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Tgk Co., Inc.

USPTO Granted Patents = 139

EPO Patents = 51

Forward Citations = 984

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65 inventors (with patents filed for the assignee):

Hisatoshi Hirota (61 out of 62 patents)

Takeshi Kaneko (26 out of 67 patents)

Shinji Saeki (15 out of 17 patents)

4. Masaaki Tonegawa (13 out of 13 patents)

5. Ryosuke Satake (12 out of 12 patents)

6. Katsumi Koyama (12 out of 12 patents)

7. Takeshi Watanabe (11 out of 147 patents)

8. Tokumi Tsugawa (11 out of 11 patents)

9. Takanao Kumakura (10 out of 10 patents)

10. Toshiyuki Shiota (8 out of 8 patents)

11. Isao Sendo (6 out of 6 patents)

12. Michio Matsumoto (5 out of 8 patents)

13. Toshihiro Andoh (5 out of 5 patents)

14. Takashi Sannomiya (5 out of 5 patents)

15. Yuusuke Inoue (5 out of 9 patents)

Core Competencies:

Motor Operated Valve

Control Valve

Variable Displacement Compressor

Expansion Valve

Butterfly Valve

Electromagnetic Valve

Motor Actuator

Automotive Air Conditioner

Vibration-Proof Spring

Composite Valve

Stepping Motor

139 patents: Sort by Forward Citations

1. 10948099 - Motor operated valve (2021-03-16),

2. 10883480 - Control valve for variable displacement compressor (2021-01-05),

3. 10837431 - Control valve for variable displacement compressor (2020-11-17),

4. 10801480 - Control valve for variable displacement compressor (2020-10-13),

5. 10760559 - Control valve for variable displacement compressor (2020-09-01),

6. 10557463 - Control valve for variable displacement compressor (2020-02-11),

7. D854655 - Expansion valve (2019-07-23),

8. 10323752 - Butterfly valve (2019-06-18),

9. 10310522 - Control valve (2019-06-04),

10. 10309702 - Control valve (2019-06-04),

11. 10260786 - Electromagnetic valve (2019-04-16),

12. 10190807 - Expansion valve (2019-01-29),

13. 10132540 - Motor operated valve apparatus and motor operated valve controller (2018-11-20),

14. 10113539 - Control valve for variable displacement compressor (2018-10-30),

15. 10107534 - Expansion valve and pipe mounting structure thereof (2018-10-23),

TGK Co., Inc. is a leading technology firm specializing in providing innovative solutions for businesses. With a diverse range of products and services, we aim to empower organizations with cutting-edge technology and strategic consulting. Our dedicated team of experts is committed to delivering high-quality results and exceptional customer satisfaction. Visit our website to explore our offerings and learn more about how we can drive your business forward.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

139 Patents

#389 in Tokyo

#876 in Japan

#5,679 in the World

Tgk Co., Inc.

Forward Citations = 984

65 inventors:

Hisatoshi Hirota (61 out of 62 patents)

Takeshi Kaneko (26 out of 67 patents)

Shinji Saeki (15 out of 17 patents)

4. Masaaki Tonegawa (13 out of 13 patents)

5. Ryosuke Satake (12 out of 12 patents)

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