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Journal

1. Marimo Matsumoto, Masaya Tamura, “Coupler Design and Analysis of Capacitive Wireless Power Charging for Implantable Medical Devices,” IEICE Trans. Electronics, vol. E105-C, no. 9, pp.-, Sep. 2022.(Advance publication)
   https://search.ieice.org/bin/summary_advpub.php?id=2021ECP5058&category=C&lang=E&abst=
2. Masaya Tamura, Takamasa Segawa, Marimo Matsumoto,“Capacitive Coupler for Wireless Power Transfer to Intravascular Implant Devices,” IEEE Microwave and Wireless Components Letters, vol. 32, no. 6, pp.672-675, Jun. 2022.
   https://ieeexplore.ieee.org/document/9745751
3. Daiki Fujii, Masaya Tamura, “Design Method for Differential Rectifier Circuit Capable of Rapidly Charging Storage Capacitor,” IEICE Trans. Electronics, vol. E104-C, no. 7, pp.355-362, Jul. 2021.
   https://search.ieice.org/bin/summary.php?id=e104-c_7_355&category=C&year=2021&lang=E&abst=
4. Hiroaki Matsukami, Kousuke Murai, Masaya Tamura, “Design of a misalignment-resistant capacitive coupler for wireless power transfer under fresh water,” IEICE Communications Express, vol. 10, no. 2, pp.73-80, Feb. 2021.
   https://www.jstage.jst.go.jp/article/comex/10/2/10_2020XBL0159/_article/-char/en
5. Masaya Tamura, Kousuke Murai, Marimo Matsumoto, “Design of Conductive Coupler for Underwater Wireless Power and Data Transfer,” IEEE Trans. Microwave Theory and Techniques, vol. 69, no. 1, pp.1161-1175, Jan. 2021.
   https://ieeexplore.ieee.org/document/9291460
6. Yasumasa Naka, Masaya Tamura, “Representation of an equivalent circuit for capacitive wireless power transfer using a distributed-constant circuit,” IEICE Communications Express, vol. 9, no. 10, pp.457-463, Oct. 2020.
   https://www.jstage.jst.go.jp/article/comex/9/10/9_2020XBL0093/_article/-char/en
7. Shinji Nimura, Daigo Furusu, Masaya Tamura, “Improvement in Power Transmission Efficiency for Cavity Resonance-Enabled Wireless Power Transfer by Utilizing Probes With Variable Reactance,” IEEE Trans. Microwave Theory and Techniques, vol. 68, no. 7, pp.2734-2744, Jul. 2020.
   https://ieeexplore.ieee.org/document/8952759
8. Masaya Tamura, Kousuke Murai, Hiroaki Matsukami, “Feasibility of Electric Double-Layer Coupler for Wireless Power Transfer Under Seawater,” IEICE Trans. Electronics, vol. E103-C, no. 6, pp.308-316, Jun. 2020.
   https://search.ieice.org/bin/summary.php?id=e103-c_6_308
9. Daigo Furusu, Masaya Tamura, “Design of Capacitive Planar Power Transmitter and Receiver for Cavity Resonance enabled Wireless Power Transfer,” IEEE Microwave and Wireless Components Letters, vol. 29, no. 8, pp.566-568, Aug. 2019.
   https://ieeexplore.ieee.org/document/8764613
10. Masaya Tamura, Yasumasa Naka, Kousuke Murai, Takuma Nakata, “Design of a Capacitive Wireless Power Transfer System for Operation in Fresh Water,” IEEE Trans. Microwave Theory and Techniques, vol. 66, no. 12, pp.5873-5884, Dec. 2018.
    https://ieeexplore.ieee.org/document/8516348
11. Masaya Tamura, Yasumasa Naka, Kousuke Murai, “Design of Capacitive Coupler in Underwater Wireless Power Transfer Focusing on kQ Product,” IEICE Trans. Electronics, vol. E101-C, no. 10, pp.759-766, Oct. 2018.
    http://search.ieice.org/bin/summary.php?id=e101-c_10_759
12. Keita Satoh, Masaya Tamura, “Filter using cylindrical quadruple mode SIW resonator,” IEICE Electronics Express, ELEX, vol.15, No.9, pp.1-6, #20180295, Apr. 2018.
    https://www.jstage.jst.go.jp/article/elex/15/9/15_15.20180295/_article
13. Masaya Tamura, Shosei Tomida, Kento Ichinose, “Design and Analysis of Multi-Mode Stripline Resonator and Its Application to Bandpass Filter,” IEICE Trans. Electronics, vol. E101-C, no. 3, pp.151-160, Mar. 2018.
    http://search.ieice.org/bin/summary.php?id=e101-c_3_151
14. Ippei Takano, Daigo Furusu, Yosuke Watanabe, Masaya Tamura, “Cavity Resonator Wireless Power Transfer in an Enclosed Space with Scatterers utilizing Metal Mesh,” IEICE Trans. Electronics, vol. E100-C, no. 10, pp.841-849, Oct. 2017.
    http://search.ieice.org/bin/summary.php?id=e100-c_10_841
15. Yasumasa Naka, Kyohei Yamamoto, Takuma Nakata, Masaya Tamura,“Improvement in Efficiency of Underwater Wireless Power Transfer with Electric Coupling,” IEICE Trans. Electronics, vol. E100-C, no. 10, pp.850-857, Oct. 2017.
    http://search.ieice.org/bin/summary.php?id=e100-c_10_850
16. Masaya Tamura, Yosuke Watanabe, Ippei Takano, “Waveguide-Mode Wireless Power Transfer in Shielded Space with Aperture Plane,” IEICE Electronics Express, ELEX, vol.14, No.8, pp.1-6, #20170195, Mar. 2017.
    https://www.jstage.jst.go.jp/article/elex/14/8/14_14.20170195/_article
17. Shosei Tomida, Kento Ichinose, Masaya Tamura, “Design approach for bandpass filter using triple-mode stripline resonator,” IEICE Electronics Express, ELEX, vol.13, No.12, pp.1-6, #20160380, Jun. 2016.
    https://www.jstage.jst.go.jp/article/elex/13/12/13_13.20160380/_article
18. Tao Yang, Masaya Tamura, Tatsuo Itoh, “Compact and high-performance low-temperature co-fired ceramic balun filter using the hybrid resonator and symmetric four-port network,” IET Journals. Microwaves, Antennas and Propagation, vol.6, No.2, pp.121-126, Jan. 2012.
    https://ieeexplore.ieee.org/document/6175200/
19. Masaya Tamura, Tao Yang, Tatsuo Itoh, “Very Compact and Low-profile LTCC Unbalanced-to-Balanced Filters with Hybrid Resonators,” IEEE Trans. Microwave Theory and Techniques, vol. 59, no. 8, pp. 1925-1936, Aug. 2011.
    https://ieeexplore.ieee.org/document/5766066
20. Masaya Tamura, Hiroshi Kagata, “Analysis of Metal-Insulator-Metal Structure and Its Application to Sensor,” IEEE Trans. Microwave Theory and Techniques, vol. 58, no. 12, part 2, pp. 3954-3960, Dec. 2010.
    https://ieeexplore.ieee.org/document/5613229
21. Tao Yang, Masaya Tamura, Tatsuo Itoh, “Super Compact Low-Temperature Co-Fired Ceramic Bandpass Filters Using the Hybrid Resonator,” IEEE Trans. Microwave Theory and Techniques, vol. 58, no. 11, pp. 2896-2907, Nov. 2010.
    https://ieeexplore.ieee.org/document/5605641
22. Masaya Tamura, Toshio Ishizaki, Mohammed Reza M. Hashemi, Tatsuo Itoh, “Approach of Metamaterial-based Quarter-wave Resonator and its Application to Very Compact LTCC Bandpass Filter,” IEICE Trans. Electronics, vol. E93-C, no. 7, pp. 1078-1088, Jul. 2010.
    http://search.ieice.org/bin/summary.php?id=e93-c_7_1078
23. Tao Yang, Masaya Tamura, Tatsuo Itoh, “Compact Hybrid Resonator With Series and Shunt Resonances Used in Miniaturized Filters and Balun Filters,” IEEE Trans. Microwave Theory and Techniques, vol. 58, no. 2, pp. 390-402, Feb. 2010.
    https://ieeexplore.ieee.org/document/5398820
24. Masaya Tamura, Toshio Ishizaki, Michael Hoft, “Design and Analysis of Vertical Split Ring Resonator and its Application to Unbalanced-balanced Filter,” IEEE Trans. Microwave Theory and Techniques, vol. 58, no. 1, pp. 157-164, Jan. 2010.
    https://ieeexplore.ieee.org/abstract/document/5356155
25. Michael Hoft, Masaya Tamura, Toshio Ishizaki, “Self-Compensation of Alignment Tolerances for Couplings in LTCC Filters,” Frequenz - Journal of RF-Engineering and Telecommunications, vol. 62, no. 9-10, pp. 216-221, Sep. 2008.
    https://www.degruyter.com/view/journals/freq/62/9-10/article-p216.xml

Conferences

1. Suzuka Akai, Hiromasa Saeki, Masaya Tamura,“Power Supply to Multiple Sensors and Leakage Field Analysis Using Cavity Resonance-Enabled Wireless Power Transfer,” in Proc. 2022 IEEE MTT-S Int. Microwave Symposium, Denver, CO, Jun. 2022, pp.271-274.
2. Masaya Tamura, Takamasa Segawa, Marimo Matsumoto,“Capacitive Coupler for Wireless Power Transfer to Intravascular Implant Devices,” presented at 2022 IEEE MTT-S Int. Microwave Symposium, Denver, CO, Jun. 2022. (Promoted to MWCL.)
   https://ieeexplore.ieee.org/document/9745751
3. Yasumasa Naka, Masaya Tamura, “Analysis and Optimization of Feeding Position on Electrode for High-Efficiency Capacitive Wireless Power Transfer,” 2021 Asian Wireless Power Transfer Workshop, KualaLumpur, Malaysia, Dec. 2021. (Online/On-site Conference Due to COVID-19)
   
4. Masaya Tamura, Kousuke Murai, Marimo Matsumoto, “Design of Disposable Film-Type Capacitive Wireless Charging for Implantable Medical Devices,” in Proc. 2021 IEEE MTT-S Int. Microwave Symposium, Atlanta, GA, Jun. 2021, pp.58-61. (In-person and Vertual Events Due to COVID-19)
   https://ieeexplore.ieee.org/document/9574969
5. Yasumasa Naka, Masaya Tamura, “Distributed Equivalent-Circuit Representation of Capacitive Coupler,” 2020 Asian Wireless Power Transfer Week, Taipei, Dec. 2020. (Online/On-site Conference Due to COVID-19)
   
6. Masaya Tamura, Kousuke Murai, Yasumasa Naka, “(Invited) Design Theory of a Parallel-Plate Coupler for Underwater Wireless Power Transfer,” in Proc. 2020 IEEE MTT-S Int. Symp. on Radio-Frequency Integration Technology, Hiroshima, Japan, Sept. 2020, pp.256-258. (Online/On-site Conference Due to COVID-19)
   https://ieeexplore.ieee.org/document/9226220
7. Daichi Shishido, Masaya Tamura, “Development of an Air-filled SIW Filter with Wideband Spurious Suppression,” in Proc. 2020 IEEE MTT-S Int. Symp. on Radio-Frequency Integration Technology, Hiroshima, Japan, Sept. 2020, pp.15-17. (Online/On-site Conference Due to COVID-19)
   https://ieeexplore.ieee.org/document/9226173
8. Masaya Tamura, Kousuke Murai, Marimo Matsumoto, “Conductive Coupler for Wireless Power Transfer Under Seawater,” in Proc. 2020 IEEE MTT-S Int. Microwave Symposium, Los Angeles, CA, Aug. 2020, pp.1176-1179. (Vertual Conference Due to COVID-19)
   https://ieeexplore.ieee.org/document/9224107
9. Keiichiro Yoshihara, Masaya Tamura, Yuichi Miyaji, Arokiaswami Alphones, “Dual Band SIW Cavity-Backed Crossed-Slot Antenna,” in Proc. 2019 Asia-Pacific Microwave Conference, Singapore, Dec. 2019, pp.1775-1778.
   https://ieeexplore.ieee.org/document/9038831
10. Daiki Fujii, Shinji Nimura, Masaya Tamura, “(Special Session) Design of Differential Rectifier Circuit Focusing on Load Fluctuation of Storage Capacitor During Charging,” in Proc. 2019 Asia-Pacific Microwave Conference, Singapore, Dec. 2019, pp.1062-1064.
    https://ieeexplore.ieee.org/document/9038188
11. Kousuke Murai, Masaya Tamura, “(Special Session) Improvements of Transfer Efficiency in Capacitive Wireless Power Transfer Under Seawater,” in Proc. 2019 Asia-Pacific Microwave Conference, Singapore, Dec. 2019, pp.840-842.
    https://ieeexplore.ieee.org/document/9038820
12. Masaya Tamura, Kousuke Murai, Daiki Fujii, “(Special Session) Lightweight and High-Efficiency Coupler Suitable for Underwater WPT System,” in Proc. 2019 Asia-Pacific Microwave Conference, Singapore, Dec. 2019, pp.7-9.
    https://ieeexplore.ieee.org/document/9038178
13. Masaya Tamura, Kousuke Murai, Shinji Nimura, “(Invited) Underwater WPT and Cavity Resonance Enabled WPT Focusing on Capacitive Coupling,” in Proc. 2019 Asian Wireless Power Transfer Workshop, Xi'an, China, Nov. 2019, pp.1-5.
14. Masaya Tamura, Kousuke Murai, Yasumasa Naka, “Capacitive Coupler Utilizing Electric Double Layer for Wireless Power Transfer Under Seawater,” in Proc. 2019 IEEE MTT-S Int. Microwave Symposium, Boston, MA, Jun. 2019, pp.1415-1418.
    https://ieeexplore.ieee.org/document/8701013
15. Shinji Nimura, Daigo Furusu, Ippei Takano, Masaya Tamura,“Improvement in Transmission Efficiency for Cavity Resonance Enabled Wireless Power Transfer by Handling Cavity Impedance,” in Proc. 2018 Asia-Pacific Microwave Conference, Kyoto, Japan, Nov. 2018, pp.1423-1425.
    https://ieeexplore.ieee.org/document/8617389
16. Masaya Tamura, Yasumasa Naka, Kousuke Murai, “Design of Capacitive Coupler for Wireless Power Transfer Under Fresh Water Focusing on kQ Product,” in Proc. 2018 IEEE MTT-S Int. Microwave Symposium, Philadelphia, PA, Jun. 2018, pp.1257-1260.
    https://ieeexplore.ieee.org/document/8439174
17. Yasumasa Naka, Kousuke Murai, Masaya Tamura, “Design of coupler for high efficiency wireless power transfer under fresh water,” 2017 Asian Wireless Power Transfer Workshop, Singapore, Dec. 2017.
    
18. Kousuke Murai, Yasumasa Naka, Masaya Tamura, “Measurement of complex permittivity for fresh water under high electric field,” 2017 Asian Wireless Power Transfer Workshop, Singapore, Dec. 2017.
    
19. Daigo Furusu, Ippei Takano, Shinji Nimura, Masaya Tamura, “Design and Prototyping of Differential Power Receiver for Cavity Resonance enabled Wireless Power Transfer,” 2017 Asian Wireless Power Transfer Workshop, Singapore, Dec. 2017.
    
20. Ippei Takano, Daigo Furusu, Shinji Nimura, Masaya Tamura, “Development of Power Receiving Control Circuit for Cavity Resonance Enabled Wireless Power Transfer,” 2017 Asian Wireless Power Transfer Workshop, Singapore, Dec. 2017.
    
21. Masaya Tamura, Daigo Furusu, Ippei Takano, “Wireless Power and Information Transfer in Closed Space utilizing Frequency Selected Surfaces,” in Proc. 2017 IEEE MTT-S Int. Microwave Symposium, Honolulu, HI, Jun. 2017, pp.1046-1049.
    http://ieeexplore.ieee.org/document/8058773/
22. Ippei Takano, Daigo Furusu, Yousuke Watanabe, Masaya Tamura, “Study on Cavity Resonator Wireless Power Transfer to Sensors in an Enclosed Space with Scatterers,” Proc. on 2017 IEEE MTT-S Int. Conf. on Microwaves for Intelligent Mobility, Nagoya, Japan, Mar. 2017, pp.1-4.
    http://ieeexplore.ieee.org/document/7918861
23. Yasumasa Naka, Kyohei Yamamoto, Takuma Nakata, Masaya Tamura, Mitsuru Masuda (Furukawa Electric Co., Ltd.), “Verification Efficiency of Electric Coupling Wireless Power Transfer in Water,” Proc. on 2017 IEEE MTT-S Int. Conf. on Microwaves for Intelligent Mobility, Nagoya, Japan, Mar. 2017, pp.1-4.
    http://ieeexplore.ieee.org/document/7918862
24. Masaya Tamura, Kento Ichinose, “Dual Band Filter with Quad-mode Stripline Resonator,” in Proc. of 46th European Microwave Conf., London, England, Oct. 2016, p.1-4.
    http://ieeexplore.ieee.org/abstract/document/7824554
25. Yosuke Watanabe, Ippei Takano, Masaya Tamura, “Basic Study on Wireless Power Transfer in Shielded Space with Scatterers Based on Waveguide Theory,” 2015 Asian Wireless Power Transfer Workshop, New Taipei, Dec. 2015, pp.1-6.
    
26. Kyohei Yamamoto, Yasumasa Naka, Masaya Tamura, “Extraction of Complex Permittivity for Liquid Phase under RF High Power,” 2015 Asian Wireless Power Transfer Workshop, New Taipei, Dec. 2015, pp.1-5.
    
27. Masaya Tamura, “Study on Transmission Zero of Filter with CRLH-TL Resonators consisting of Asymmetric Cells,” Proc. of Int. conference on Global Network for Innovative TEchnology, Penang, Malaysia, Dec. 2014, pp.197-201.
    
28. Koji Sonoda, Takayuki Fujita, Kensuke Kanda, Kazusuke Maenaka, Hideaki Katsumura, Masaya Tamura, Hiroshi Kagata, “SPICE Modeling of Piezoelectric Energy Harvesting Device utilizing Stress Influence,” Proc. of IEEE The 2nd Int. Workshop on energy and Wireless Sensors, Beijing, China, Aug. 2013, pp.1662-1664.
    https://ieeexplore.ieee.org/document/6682314
29. Masaya Tamura, Hiroshi Kagata, “Analysis of Plasmon Excited by Metal-Insulator-Metal Structure with Insulator Thickness of Hundreds of Nanometers,” in Proc. 2010 IEEE MTT-S Int. Microwave Symposium, Digest, vol. 1, Anaheim, CA, May 2010, pp. 356-359.
    https://ieeexplore.ieee.org/document/5515132
30. Toshio Ishizaki, Masaya Tamura, Catherine A. Allen, Tatsuo Itoh, “Left-Handed Band Pass Filter Realized by Coupled Negative Order Resonators,” in Proc. 2008 IEEE MTT-S Int. Microwave Symposium Digest, vol. 2, Atlanta, GA, Jun. 2008, pp. 1107-1110.
    https://ieeexplore.ieee.org/document/4633250
31. Michael Hoft, Masaya Tamura, Toshio Ishizaki, “Self-compensation of alignment tolerances for series capacitors in LTCC Filters with stepped impedance resonators,” in Proc. German Microwave Conf., Hamburg, Germany, Mar. 2008, pp. 1-4.
    https://ieeexplore.ieee.org/document/5757072
32. Masaya Tamura, Toshio Ishizaki, Michael Hoeft, Hidekazu Tamai, “Novel Vertical Split Ring Resonator Fabricated in LTCC,” 2007 IEEE Korea-Japan Microwave Conf., Naha, Japan, Nov. 2007, pp. 105-108.
    https://ieeexplore.ieee.org/document/4402251
33. Shigeo Kawasaki, Takeshi Yamamoto, Yasuyuki Sakurai, Harunobu Seita, Katsutoshi Nakajima, Kyoji Kanazawa, Masaya Tamura, Toshio Ishizaki, Tamotsu Suda, “Fabrication of a Proto-Type Active Integrated Antenna for a Compact and High-Power Phased Array System” Proc. of Int. Symposium on Ant. and Prop., Niigata, Japan, Aug. 2007, pp.1278-1281.

Technical Reports

1. Yasumasa Naka, Masaya Tamura, Yuichi Miyaji, “Formulation of kQ theory for underwater capacitive wireless power transfer,” IEICE Tech. Rep., MW2022-20, vol.122, no.35, pp.28−31, May 2022.(Japanese)
2. Takamasa Segawa, Masaya Tamura, “Synthetic Complex Permittivity Measurement of Multi-layerd Biological Tissues,” IEEE AP/MTT-S Midland Student Express 2022 Spring, S-12, Apr. 2022.
3. Akihiko Ishiwata, Masaya Tamura, “Design Equation for Class-E Inverters Considering Component Mounted Lines,” IEEE AP/MTT-S Midland Student Express 2022 Spring, S-11, Apr. 2022.
4. Masaya Takagi, Masaya Tamura, Yuichi Miyaji, “Basic Study of Decoupling Circuit Between Antennas Using BSF Design Concept,” IEICE Tech. Rep., MW2021-101, vol.121, no.303, pp.97-102, Dec. 2021.(Japanese)
5. Marimo Matsumoto, Masaya Tamura, “Basic study of capacitive WPT for implantable medical devices,” IEICE Tech. Rep., WPT2021-13, vol.121, no.289, pp.1-4, Dec. 2021.(Japanese)
6. Shinpei Oshima (ONCT), Masaya Tamura, “A study on design of diplexer using lumped-element matching circuits,” IEICE Tech. Rep., MW2021-67, vol.121, no.254, pp.7-10, Dec. 2021.(Japanese)
7. Genki Oishi (ONCT), Shinpei Oshima (ONCT), Masaya Tamura, “Experimental study of a triplexer using matching circuits consisted of lumped elements,” IEICE Tech. Rep., MW2020-94, vol.120, no.422, pp.17-21, Mar. 2021.(Japanese)
8. Tatsuki Yanagawa (ONCT), Shinpei Oshima (ONCT), Masaya Tamura, “A study on a high attenuation triplexer using chip components,” IEICE Tech. Rep., MW2020-93, vol.120, no.422, pp.13-16, Mar. 2021.(Japanese)
9. Yousuke Horie, Masaya Tamura, “Self-interference cancellation between transmitting and receiving antennas for in-band full-duplex wireless communication,” IEEE AP/MTT-S Midland Student Express 2019 Autumn, S4-5, Toyama, Dec 2019.
10. Tatsuya Morita, Masaya Tamura, “Filtering Antenna Using Non-penetrating Post SIW Resonator,” IEEE AP/MTT-S Midland Student Express 2019 Autumn, S4-4, Toyama, Dec 2019.
11. Shinji Nimura, Daiki Fujii, Masaya Tamura, “Relationship between Reflection Probes and Power Transmission Efficiency in Cavity Resonance enabled WPT,” IEICE Tech. Rep., WPT2019-15, vol.119, no.74, pp.25-30, Jun. 2019.(Japanese)
12. Daiki Fujii, Masaya Tamura, “Design of differential rectifier circuit focusing on load fluctuation of storage capacitor during charging,” IEEE AP/MTT-S Midland Student Express 2019 Spring, S2-5, Nagoya, April 2019.
13. Taichi Shishido, Masaya Tamura, “Development of Low-profile Base Station Filter for Beyond 5G,” IEEE AP/MTT-S Midland Student Express 2019 Spring, S1-3, Nagoya, April 2019.
14. Daigo Furusu, Masaya Tamura, “Development of Planer Capacitive Power Transmitter and Receiver for Cavity Resonance enabled WPT,” IEICE Tech. Rep., MW2018-123, vol.118, no.361, pp.55-59, Dec. 2018.(Japanese)
15. Murai Kousuke, Matsukami Hiroaki, Tamura Masaya, “Relationship Between Transfer Power and Transfer Efficiency on Capacitive WPT Under Fresh Water,” IEICE Tech. Rep., WPT2018-29, vol.118, no.227, pp.1-4, Oct. 2018.(Japanese)
16. Daigo Furusu, Shinji Nimura, Daiki Fujii, Masaya Tamura, “Integration of Differential Power Receiver and Rectifier for Cavith Resonance enabled Wireless Power Transfer,” IEICE Tech. Rep., WPT2018-24, vol.118, no.115, pp.91-96, Jul. 2018.(Japanese)
17. Tatsuya Morita, Masaya Tamura, “Integrated Structure of Filter and Element in Array Antenna for 5th Generation,” IEEE AP/MTT-S Midland Student Express 2018 Spring, S4-4, Nagoya, April 2018.
18. Shinji Nimura, Masaya Tamura, “Matching Method for Cavity Resonance enabled WPT utilizing the Monopole probe with the Variable Reactance Circuit,” IEEE AP/MTT-S Midland Student Express 2018 Spring, S4-2, Nagoya, April 2018.
19. Shosei Tomida, Masaya Tamura, “Bandstop Filter Using Meander Loop Resonator with Folded Open Stub,” IEICE Tech. Rep., MW2017-182, vol.117, no.462, pp.45-50, Mar. 2018.(Japanese)
20. Shosei Tomida, Satoshi Kitabayashi, Yuichi Miyaji, Masaya Tamura, “Proposal of Reflective Circuit and Variable-Attenuation-Phase Shifter with Independently Controllable Amplitude and Phase,” IEICE Tech. Rep., MW2017-151, vol.117, no.366, pp.53-58, Dec. 2017.(Japanese)
21. Yasumasa Naka, Kosuke Murai, Masaya Tamura, “Design of coupler for high efficiency wireless power transfer under fresh water with electric coupling,” IEICE Tech. Rep., WPT2017-49, vol.117, no.318, pp.27-31, Nov. 2017.(Japanese)
22. Ippei Takano, Daigo Furusu, Shinji Nimura, Masaya Tamura, “Design and Prototyping of Differential Power Receiver for Cavity Resonance enabled Wireless Power Transfer,” IEICE Tech. Rep., WPT2017-45, vol.117, no.318, pp.7-10, Nov. 2017.(Japanese)
23. Daigo Furusu, Ippei Takano, Shinji Nimura, Masaya Tamura, “Proposal of Receiving Control System for Cavity Resonance Enabled Wireless Power Transfer,” IEICE Tech. Rep., WPT2017-44, vol.117, no.318, pp.1-6, Nov. 2017.(Japanese)
24. Takuma Nagao, Atsushi Funayama, Masaya Tamura, “Quadruple-mode cavity resonator aimed at compactness and high Q factor, ”IEICE Tech. Rep., MW2017-30, vol.117, no.104, pp.49-54, Jun. 2017.(Japanese)
25. Takuma Nagao, Masaya Tamura, “Quadruple-mode cavity resonator aimed at compactness and high Q factor,” IEEE AP/MTT-S Midland Student Express 2017 Spring, S2-5, Nagoya, April 2017.
26. Daigo Furusu, Masaya Tamura, “Wireless Power and Information Transfer Utilizing Frequency Selected Surfaces,” IEEE AP/MTT-S Midland Student Express 2017 Spring, S2-6, Nagoya, April 2017.
27. Shosei Tomida, Yuichi Miyaji, Masaya Tamura, “Design Method of Analog Cancellation Circuit Using Signal Inversion for In-Band Full-Duplex Wireless Communication, ”IEICE Tech. Rep., MW2016-196, vol.116, no.486, pp.45-50, Mar. 2017.(Japanese)
28. Ippei Takano, Daigo Furusu, Yosuke Watanabe, Masaya Tamura, “Cavity Resonator Wireless Power Transfer to Sensors in an Enclosed Space with Scatterers, ” IEICE Tech. Rep., WPT2016-62, vol.116, no.452, pp.27-30, Feb. 2017.
29. Yasumasa Naka, Kyohei Yamamoto, Takuma Nakata, Masaya Tamura, “Proposal of Underwater Wireless Power Transfer with Electric Coupling Method, ” IEICE Tech. Rep., WPT2016-61, vol.116, no.452, pp.23-26, Feb. 2017.
30. Keita Satoh, Shosei Tomida, Masaya Tamura, “Basic study of multi-mode resonances using cylindrical substrate integrated waveguide,”IEICE Tech. Rep., MW2016-154, vol.116, no.363, pp.123-127, Dec. 2016.(Japanese)
31. Ippei Takano, Masaya Tamura, “Study on point-to-multipoint wireless power transfer technology in the enclosed space with scatterers,” IEEE AP/MTT-S Midland Student Express 2016 Spring, S3-4, Nagoya, April 2016.
32. Shosei Tomida, Masaya Tamura, “Establishment of Design Approach for Bandpass Filter using Triple-mode Stripline Resonator,” IEEE AP/MTT-S Midland Student Express 2016 Spring, S3-3, Nagoya, April 2016.
33. Yosuke Watanabe, Masaya Tamura, Ippei Takano, “Basic Study on Wireless Power Transfer in Shielded Space with Scatterers Based on Cavity Resonator Theory,”IEICE Tech. Rep., WPT2015-75, vol.115, no.446, pp.17-20, Feb. 2016.(Japanese)
34. Masaya Tamura, Kyohei Yamamoto, Yasumasa Naka,“Study on Extraction Method for Complex Permittivity of Liquid Phase under High Power RF,” IEICE Tech. Rep., WPT2015-65, vol.115, no.428, pp.11-14, Jan. 2016.(Japanese)
35. Yosuke Watanabe, Masaya Tamura, “Basic study of efficiency improvement for wireless power transmission in closed space with scatterers,” IEEE AP/MTT-S Midland Student Express 2015 Spring, S4-1, Nagoya, April 2015.
36. Masaya Tamura, Yusuke Kamiyama, Naoki Sakai, Takashi Ohira, “Study on RF Measurement Method for Liquid Phase under High Power,”IEICE Tech. Rep., WPT2015-19, vol.115, no.3, pp.97-102, Apr. 2015.(Japanese)

Domestic Conferences

1. Yoshibobu Tamura, Hiromasa Saeki（Murata Manufacturing）, Masaya Tamura, "Design of Broadband Power Transmitter for Cavity Resonance-Enabled Wireless Power Transfer, " Proc. IEICE Gen. Conf.'22, no.B-20-19, p.560, Mar. 2022.
2. Takamasa Segawa, Marimo Matsumoto, Masaya Tamura, "Synthetic Complex Permittivity Measurement of Multi-layerd Biological Tissues, " Proc. IEICE Gen. Conf.'22, no.B-20-16, p.557, Mar. 2022.
3. Yasumasa Naka, Minoru Mizutani, Masaya Tamura, "Improvement in efficiency of underwater capacitive power transfer focused on coupled-line theory, " Proc. IEICE Society Conf.'21, no.C-2-44, p.54, Sep. 2021.
4. Suzuka Akai, Hiromasa Saeki, Masaya Tamura, "Study on Cavity Resonance-Enabled WPT to Multiple Sensors, " Proc. IEICE Gen. Conf.'21, no.B-20-20, p.547, Mar. 2021.
5. Marimo Matsumoto, Kosuke Murai, Hiroaki Matsukami, Masaya Tamura, "Complex Permittivity Measurement of Pseudo-biological Tissue for Through-body WPT, " Proc. IEICE Gen. Conf.'20, no.B-20-29, p.615, Mar. 2020.
6. Daiki Fujii, Masaya Tamura, "Design of Current Doubler Rectifier with Storage Capacitor for Fast Charging, " Proc. IEICE Gen. Conf.'20, no.B-20-6, p.592, Mar. 2020.
7. Keiichiro Yoshihara, Masaya Tamura, Yuichi Miyaji, Arokiaswami Alphones, "Design of Dual Band SIW Cavity-Backed Crossed-Slot Antenna, " Proc. IEICE Society Conf.'19, no.B-1-101, p.101, Sep. 2019.
8. Kosuke Murai, Masaya Tamura, "Design of High-Efficiency Capacitive Coupler for Wireless Power Transfer Under Seawater, " Proc. IEICE Society Conf.'19, no.ABS-1-3, p.S-34, Sep. 2019.
9. Shinji Nimura, Masaya Tamura, "Technique for High-Efficiency Cavity Resonance enabled WPT with Planer Capacitive Power Transmitter and Receiver, " Proc. IEICE Society Conf.'19, no.B-20-18, p.398, Sep. 2019.
10. Daiki Fujii, Daigo Furusu, Shinji Nimura, Masaya Tamura, "Design of differential rectier focusing on load fluctuation of storage capacitor during charging, " Proc. IEICE Gen. Conf.'19, no.B-21-11, p.464, Mar. 2019.
11. Hiroaki Matsukami, Kosuke Murai, Masaya Tamura, "Measurement of Complex Permittivity of Fresh Water Under High Electric Field, " Proc. IEICE Gen. Conf.'19, no.B-21-6, p.459, Mar. 2019.
12. Shinji Nimura, Daigo Furusu, Masaya Tamura, "Relationship between Termination Reactance of Matching Probe and Power Transmission Efficiency in Cavity Resonance enabled WPT," Proc. IEICE Society Conf.'18, no.B-21-13, p.458, Sep. 2018.
13. Kosuke Murai, Masaya Tamura, "Electrode Design of Capacitive Coupler for Underwater Wireless Power Transfer," Proc. IEICE Society Conf.'18, no.B-21-12, p.457, Sep. 2018.
14. Yosuke Horie, Shosei Tomida, Yuichi Miyaji, Masaya Tamura, “Self-Interference Cancellation between Transmitting and Receiving Antennas by Bandstop Filter," Proc. IEICE Gen. Conf.'18, no.C-2-63, p.77, Mar. 2018.
15. Shinji Nimura, Daigo Furusu, Ippei Takano, Masaya Tamura, "Development of Cavity Resonance enabled Wireless Power Transfer System Independent on Receiving Position," Proc. IEICE Society Conf.'17, no.B-21-22, p.418, Sep. 2017.
16. Kosuke Murai, Yasumasa Naka, Takuma Nakata, Masaya Tamura, "Clarification of 13.56-MHz Complex Permittivity Under High Electric Field for Fresh Water," Proc. IEICE Society Conf.'17, no.B-21-20, p.416, Sep. 2017.
17. Daigo Furusu, Ippei Takano, Shinji Nimura, Masaya Tamura, "Design of Differential Power Receiver for Cavity Resonance enabled Wireless Power Transfer," Proc. IEICE Society Conf.'17, no.B-21-23, p.419, Sep. 2017.
18. Shosei Tomida, Yuichi Miyaji, Masaya Tamura, "Analog Variable Amplitude Phase Shifter with 90° Hybrid Coupler," Proc. IEICE Society Conf.'17, no.C-2-10, p.18, Sep. 2017.
19. Daigo Furusu, Ippei Takano, Yosuke Watanabe, Masaya Tamura, Wireless Power and Information Transfer utilizing Frequency Selected Surfaces," Proc. IEICE Gen. Conf.'17, no.B-21-6, p.561, Mar. 2017.
20. Ippei Takano, Yosuke Watanabe, Masaya Tamura, "Study on Multipoint Wireless Power Transfer Method in the Enclosed Space," Proc. IEICE Society Conf.'16, no.B-21-27, p.485, Sep. 2016.
21. Atsushi Funayama, Masaya Tamura, "Design of Dual Band BPF Using DoubleHairpin Resonator," Proc. IEICE Society Conf.'16, no.C-2-31, p.41, Sep. 2016.
22. Kyohei Yamamoto, Yasumasa Naka, Kazuki Arai, Masaya Tamura, "Prototype Model of Charging System for AUV by Underwater WPT," Proc. IEICE Gen. Conf.'16, no.BS-8-1, p.S-31, March 2016.
23. Keita Satoh, Yuuki Aoyagi, Takashi Ohira, Masaya Tamura, "Development of High Power M-derived Filter," Proc. IEICE Gen. Conf.'16, no.B-21-29, p.700, March 2016.
24. Astushi Funayama, Masaya Tamura, "Basic Study on Design of Dual-band Bandpass Filter," Proc. IEICE Gen. Conf.'16, no.C-2-63, p.92, March 2016.
25. Yasumasa Naka, Kyohei Yamamoto, Masaya Tamura, "Verification Accuracy in Measurement System of Complex Permittivity Utilizing Complex Voltage," Proc. IEICE Gen. Conf.'16, no.B-21-11, p.623, March 2016.

Lectures

1. 60-minute talk, “Wireless power and data transfer to underwater drones,”The Japan Society for Precision Engineering, On-demand, Sep. 2021.
2. 25-minute talk, “Underwater Wireless Power Transfer System Utilizing Conductivity of Seawater,”International Workshop on Wireless Power Supply Solutions for the Next Generation Vehicle, Hybrid conference, 2021年9月
3. 25-minute talk, “Wireless Power and Information Transfer with Reduced Leakage for Sensors in Equipment and Facilities, ”IEICE Society Conf.'17, no.BI-2-7, p.SS55-56, Sep. 2017.
4. 45-minute talk, “Wireless Power and Information Transfer in Closed area,” WiPoT WG3, Jan. 2017.
5. 40-minute talk, “Extraction Method for Complex Permittivity of Liquid Phase under High Power RF,” 3rd WiPoT symposium, Oct. 2015.
6. 40-minute talk, “Basic Study on Bandpass Filters using Hybridmode Resonator,” Memorial Lecture, IEICE technical report. Microwaves, Mar. 2012.
7. 40-minute talk, “Design of Unbalanced-Balanced Filter Using Hybrid Resonators Based on CRLH-TL Concept,” Microwave Workshops & Exhibition, Nov. 2013.
8. 20-minute talk, “Compact and Low-Profile LTCC Unbalanced-to-Balanced Filters with Hybrid Resonators,” Special Talk, IEICE technical report. Microwaves, Mar. 2012.
9. Hour lecture, Workshop on Metamaterials, Dec. 2009.
10. 20-minute talk, Young Engineer Meeting, Dec. 2008.

Patents

1. Masaya Tamura, Ippei Takano, Daigo Furusu, J.P. Patent 7039000.
2. Masaya Tamura, Shinji Nimura，Ippei Takano, Daigo Furusu, J.P. Patent 6973781.
3. Masaya Tamura, Ippei Takano, Kazuki Komatsu, Yosuke Watanabe, J.P. Patent 6782953.
4. Masaya Tamura, Kento Ichinose, J.P. Patent 6516492.
5. Masaya Tamura, Hiroshi Kagata, Hiroshi Hashimotodani, J.P. Patent 5938585.
6. Hidenori Katsumura, Hiroshi Kagata, Masaya Tamura, Kouichi Hasegawa, Hajime Kurikuma, J.P. Patent 5934926.
7. Masaya Tamura, Hiroshi Kagata, Hiroaki Oka, Susumu Fukushima, J.P. Patent 5810267.
8. Masaya Tamura, Hiroshi Kagata, J.P. Patent 5633510.
9. Masaya Tamura, J.P. Patent 5387572, Oct. 18, 2013.
10. Masaya Tamura, Toshio Ishizaki, “Left-handed filter for use in mobile phone provided with wide band and improved propagation characteristics,” U.S.Patent 8334733B2.
11. Toshio Ishizaki, Masaya Tamura, “Resonator and filter using the same,” U.S.Patent 8248190B2.
12. Masaya Tamura, Toshio Ishizaki, J.P. Patent 5061794, Aug. 17, 2012.
13. Masaya Tamura, Toshio Ishizaki, J.P. Patent 5045349, Jul. 27, 2012.
14. Toshio Ishizaki, Masaya Tamura, “Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device,” U.S.Patent 8222975B2.
15. Masaya Tamura, Hiroshi Kagata, Hiroaki Oka, WO2011/142118.
16. Masaya Tamura, “Composite filter comprising a surface acoustic wave filter and an LC filter,” U.S.Patent 7876178B2.
17. Masaya Tamura, Yoshikuni Fujihashi, “Antenna Switch Module,”U.S.Patent 7528678B2.

Awards

Tatsuya Morita;　Midland Student Express 2018 Spring Student Award IEEE AP/MTT-S Nagoya Chapter　2018年4月

Shinji Nimura;　Midland Student Express 2018 Spring Student Award IEEE AP/MTT-S Nagoya Chapter　2018年4月

Ippei Takano; 2017 Asian Wireless Power Transfer Workshop Best Student Award, Dec. 2017

Shosei Tomida; Midland Student Express 2016 Spring Student Award, May. 2016

Masaya Tamura; 2015 IEEE MTT-S Outstanding Young Engineer Award, May. 2015

Electromagnetic Wave Engineering Laboratory; MWE2014 University Exhibition Outstanding Award, Dec. 2014

Masaya Tamura; 2013 IEEE Kansai Medal, Jan. 2013

Masaya Tamura; 2012 IEEE MTT-S Japan Young Engineer Award, Nov. 2012

Masaya Tamura; 2012 Michiyuki Uenohara Memorial Award, Nov. 2012

　　

Societies

IEEE (Senior member)

IEICE (Senior member)