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Japan Radio Co., Ltd.

USPTO Granted Patents = 90

CIPO Patents = 2

EPO Patents = 16

Trademarks = 7

Forward Citations = 1,639

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179 inventors (with patents filed for the assignee):

Hironori Sakamoto (10 out of 15 patents)

Hiromi Yatsuda (9 out of 13 patents)

Kazuo Yamashita (8 out of 22 patents)

4. Shinichiro Nishimura (8 out of 8 patents)

5. Shigeru Namaizawa (7 out of 7 patents)

6. Kouichi Eguchi (6 out of 6 patents)

7. Yasuhiro Toriyama (5 out of 5 patents)

8. Toshio Nojima (5 out of 42 patents)

9. Toshiro Taki (5 out of 5 patents)

10. Tamaki Honda (4 out of 4 patents)

11. Masaharu Tomita (4 out of 5 patents)

12. Chogo Sekine (4 out of 7 patents)

13. Akira Ito (4 out of 4 patents)

14. Tsuyoshi Muramatsu (3 out of 57 patents)

15. Daisaku Yamane (3 out of 3 patents)

Core Competencies:

Gas Sensors

Wireless Communication

Ultrasonic Wave Transmitters

Surface Acoustic Wave Sensors

Radar Devices

Electric Double-Layer Capacitors

Image Display Monitors

Navigation Antennas

Propagation Time Measurement

FET Bias Circuits

Three-Dimensional Radar

Interference Canceling Devices

90 patents: Sort by Forward Citations

1. 12300085 - Overboard fall detection unit, portable terminal, and server device (2025-05-13),

2. 12253493 - Gas sensor with indirect pass-through ventilation (2025-03-18),

3. 11924736 - Wireless communication unit and wireless network system using the same (2024-03-05),

4. 11525812 - Gas concentration measuring device and method of calibrating same (2022-12-13),

5. 11499939 - Ultrasonic wave transmitter, propagation time measurement device, gas concentration measurement device, propagation time measurement program, and propagation time measurement method (2022-11-15),

6. D952621 - Portable wireless base station equipment (2022-05-24),

7. 11054397 - Propagation time measurement machine, gas concentration measurement device, propagation time measurement program, and propagation time measurement method (2021-07-06),

8. 10483611 - Waveguide/transmission line converter configured to feed a plurality of antenna elements in an antenna device (2019-11-19),

9. 10459071 - Orthogonal separation device and orthogonal separation method (2019-10-29),

10. 10042040 - Vehicle radar device (2018-08-07),

11. 10003117 - Two-port triplate-line/waveguide converter having two probes with tips extending in different directions (2018-06-19),

12. 9979066 - Feed line comprised of a triplate line coupled between a waveguide/triplate line converter and patch antennas for optimizing signals through the feed line (2018-05-22),

13. 9678042 - Surface acoustic wave sensor (2017-06-13),

14. 9645116 - Object characteristics measurement apparatus (2017-05-09),

15. D709497 - Image display monitor (2014-07-22),

Japan Radio Co., Ltd., also known as JRC, is a leading global provider of innovative communication and navigation solutions. Established in 1915, the company specializes in manufacturing and supplying advanced radio communication equipment for marine, aerospace, and land-based applications. JRC's extensive product portfolio includes radar systems, sonars, navigation aids, maritime satellite communication systems, communication equipment for vessels, air traffic control systems, and more. With a commitment to delivering reliable and high-quality solutions, JRC serves a diverse range of industries worldwide, contributing to safer and more efficient operations.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

90 Patents

#511 in Tokyo

#1,172 in Japan

#8,250 in the World

Japan Radio Co., Ltd.

Forward Citations = 1,639

179 inventors:

Hironori Sakamoto (10 out of 15 patents)

Hiromi Yatsuda (9 out of 13 patents)

Kazuo Yamashita (8 out of 22 patents)

4. Shinichiro Nishimura (8 out of 8 patents)

5. Shigeru Namaizawa (7 out of 7 patents)

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