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Kanagawa, Japan

Nippon Gear Co., Ltd.

USPTO Granted Patents = 10

Trademarks = 3

Forward Citations = 102

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14 inventors (with patents filed for the assignee):

Susumu Watanabe (5 out of 20 patents)

Shiro Umezono (2 out of 2 patents)

Minoru Maki (2 out of 2 patents)

4. Haruo Ito (1 out of 9 patents)

5. Takeki Nogami (1 out of 6 patents)

6. Osamu Okada (1 out of 1 patent)

7. Yuzo Hashimoto (1 out of 1 patent)

8. Kunio Matsushita (1 out of 1 patent)

9. Yutaka Utsumi (1 out of 2 patents)

10. Yoshiaki Ogawa (1 out of 1 patent)

11. Toshio Endo (1 out of 1 patent)

12. Takeshi Suguro (1 out of 1 patent)

13. Takeshi Saito (1 out of 2 patents)

14. Sui Takayama (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 7690624 - Valve drive device (2010-04-06),

2. 5836567 - Apparatus for continuous detection of load in an electric valve actuator (1998-11-17),

3. 5743133 - Load detectable valve (1998-04-28),

4. 5224512 - Valve stem driving apparatus (1993-07-06),

5. 5059879 - Electric actuator control apparatus (1991-10-22),

6. 5018403 - Globoid worm gear speed reduction apparatus (1991-05-28),

7. 4998385 - Method of modified gear cutting of a globoid worm gear (1991-03-12),

8. 4811618 - Motion conversion mechanism (1989-03-14),

9. 4794309 - Electric actuator for a control valve (1988-12-27),

10. 4716290 - Rotary encoder with intermittent feed means (1987-12-29),

Nippon Gear Co., Ltd. is a leading manufacturer of high-quality gears and power transmission products based in Japan. With over 70 years of experience, we offer a wide range of gear solutions for various industries including automotive, industrial machinery, and robotics. Our commitment to innovation and quality has earned us a reputation for reliability and excellence in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

10 Patents

#136 in Kanagawa

#4,288 in Japan

#54,349 in the World

Kanagawa, Japan

Nippon Gear Co., Ltd.

Forward Citations = 102

14 inventors:

Susumu Watanabe (5 out of 20 patents)

Shiro Umezono (2 out of 2 patents)

Minoru Maki (2 out of 2 patents)

4. Haruo Ito (1 out of 9 patents)

5. Takeki Nogami (1 out of 6 patents)

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