For the Inventor, By the Inventor

Enter assignee name

Tokyo Keiki Inc.

USPTO Granted Patents = 14

EPO Patents = 13

Trademarks = 1

Forward Citations = 21

Loading Chart...

Loading Chart...

41 inventors (with patents filed for the assignee):

Satoshi Ito (2 out of 91 patents)

Takayuki Ushikubo (2 out of 2 patents)

Shunichi Hirano (2 out of 2 patents)

4. Hajime Tamura (2 out of 27 patents)

5. Hiroomi Arakane (2 out of 3 patents)

6. Takao Sagawa (2 out of 3 patents)

7. Nobuyuki Okamura (2 out of 11 patents)

8. Kenji Tsuchiya (2 out of 59 patents)

9. Takao Murakoshi (2 out of 8 patents)

10. Hiroaki Saito (1 out of 43 patents)

11. Kazuhito Kishida (1 out of 9 patents)

12. Takashi Koyama (1 out of 117 patents)

13. Kazushi Kaneko (1 out of 30 patents)

14. Yohei Ishida (1 out of 9 patents)

15. Daisuke Kobayashi (1 out of 74 patents)

14 patents: Sort by Forward Citations

1. 12487087 - Gyrocompass (2025-12-02),

2. 12122467 - Moving device (2024-10-22),

3. 11776411 - Ship navigation assisting device (2023-10-03),

4. 11587769 - Microwave output device and plasma processing apparatus (2023-02-21),

5. 11408462 - Adhesion device (2022-08-09),

6. 11211678 - Dual-band resonator and dual-band bandpass filter using same (2021-12-28),

7. 10840859 - Amplification apparatus (2020-11-17),

8. 10772184 - Ignition device (2020-09-08),

9. 10714407 - Amplification apparatus (2020-07-14),

10. 10122066 - Horn antenna (2018-11-06),

11. 9863800 - Radar level gauge (2018-01-09),

12. 9708001 - Automatic steering system for working vehicle (2017-07-18),

13. 9541400 - Fiber optic gyroscope sensing coil and method of fabricating the same (2017-01-10),

14. 9121929 - Position output device using satellite navigation system (2015-09-01),

Tokyo Keiki Inc. is a leading global provider of precision measuring solutions for various industries. With over 70 years of experience, TOKYO KEIKI is dedicated to delivering high-quality products and services that meet the precision measurement needs of its customers. The company offers a wide range of products including hydraulic equipment, industrial instrumentation, marine equipment, and control systems. TOKYO KEIKI's commitment to technological innovation and customer satisfaction has made them a trusted name in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

14 Patents

#1,397 in Tokyo

#3,487 in Japan

#40,903 in the World

Tokyo Keiki Inc.

Forward Citations = 21

41 inventors:

Satoshi Ito (2 out of 91 patents)

Takayuki Ushikubo (2 out of 2 patents)

Shunichi Hirano (2 out of 2 patents)

4. Hajime Tamura (2 out of 27 patents)

5. Hiroomi Arakane (2 out of 3 patents)

Please report any incorrect information to support@idiyas.com

Loading…