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Kanagawa, Japan

Nec Microwave Tube, Ltd.

Calculating rank

USPTO Granted Patents = 35

% Expired Patents = 25.7

Forward Citations = 78

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26 inventors (with patents filed for the assignee):

Kazuhisa Nishida (10 out of 25 patents)

Junichi Kobayashi (4 out of 105 patents)

Yukihira Nakazato (4 out of 8 patents)

4. Tatsuya Uchikawa (3 out of 16 patents)

5. Junichi Matsuoka (3 out of 5 patents)

6. Eiji Fujiwara (3 out of 3 patents)

7. Shunji Tsuida (2 out of 8 patents)

8. Shuji Abiko (2 out of 2 patents)

9. Hironori Imura (2 out of 25 patents)

10. Takeshi Nobe (2 out of 10 patents)

11. Toshimoto Makino (2 out of 2 patents)

12. Hideo Makishima (2 out of 30 patents)

13. Takayoshi Konishi (2 out of 6 patents)

14. Yasuhiro Akiyama (1 out of 21 patents)

15. Takeshi Ishihara (1 out of 14 patents)

Core Competencies:

Temperature Detection

Voltage Control

Power Supply

High-Frequency Circuit

Electron Tube

Traveling-Wave Tube

Microwave Tube

Coaxial Waveguide

Pillbox Vacuum Window

High Pressure Discharge Lamp

Chip Antenna

Electron Gun

35 patents: Sort by Forward Citations

1. 8491187 - Temperature detection apparatus (2013-07-23),

2. 8212481 - Voltage control apparatus, power supply apparatus, electron tube and high-frequency circuit system (2012-07-03),

3. 8027182 - Electric current measurement apparatus, voltage measurement apparatus and power supply apparatus (2011-09-27),

4. 7952288 - Power supply apparatus and high-frequency circuit system (2011-05-31),

5. 7764025 - Power supply apparatus and high-frequency circuit system (2010-07-27),

6. 7719196 - Structure of coaxial-to-waveguide transition and traveling wave tube (2010-05-18),

7. 7688163 - Pillbox vacuum window (2010-03-30),

8. 7652392 - Power supply device and high-frequency circuit system (2010-01-26),

9. 7589469 - Coaxial waveguide converter circuit for traveling-wave tube, method of manufacturing same, and waveguide matching part for use in coaxial waveguide converter circuit (2009-09-15),

10. 7489084 - Power supply apparatus and high frequency circuit system (2009-02-10),

11. 7315134 - Power supply for a high voltage device (2008-01-01),

12. 7088060 - Electron tube for communication (2006-08-08),

13. 7071624 - Microwave tube system and microwave tube (2006-07-04),

14. 7038379 - High pressure discharge lamp and method for sealing a bulb thereof (2006-05-02),

15. 7034472 - Power supply apparatus for traveling-wave tube which eliminates high voltage relay (2006-04-25),

Company Overview

NEC Microwave Tube, Ltd. specializes in the development and manufacturing of advanced microwave tube technologies, which are essential for various applications in telecommunications, broadcasting, and radar systems. The company is recognized for its innovative solutions that enhance signal transmission and reception capabilities. Based in Kanagawa, Japan, NEC Microwave Tube plays a pivotal role in the global market by providing high-performance components that support the evolving needs of communication infrastructure and defense systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

35 Patents

#76 in Kanagawa

#2,133 in Japan

#19,187 in the World

Kanagawa, Japan

Nec Microwave Tube, Ltd.

Forward Citations = 78

26 inventors:

Kazuhisa Nishida (10 out of 25 patents)

Junichi Kobayashi (4 out of 105 patents)

Yukihira Nakazato (4 out of 8 patents)

4. Tatsuya Uchikawa (3 out of 16 patents)

5. Junichi Matsuoka (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Microwave Tube, Ltd.. Retrieved from https://idiyas.com/company/nec-microwave-tube

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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