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Nagano-ken, Japan

Tamagawa Seiki Kabushiki Kaisha

Patents = 71

Forward Citations = 636

where 'Filed Patents' based on already Granted Patents

where 'Inventors Filed' based on already Granted Patents

56 inventors (with patents filed for the assignee):

Hiroshi Kushihara (9 out of 13 patents)

Tsuneo Sugiura (8 out of 9 patents)

Hisashi Mimura (6 out of 9 patents)

4. Kanji Kitazawa (5 out of 8 patents)

5. Hiromi Ohshita (5 out of 5 patents)

6. Hiromasa Miura (4 out of 4 patents)

7. Toshiyuki Noda (3 out of 3 patents)

8. Takaji Yasui (3 out of 3 patents)

9. Yosuke Takaba (3 out of 3 patents)

10. Sokichi Hayashi (3 out of 3 patents)

11. Shigeo Seki (3 out of 3 patents)

12. Tomio Nakata (3 out of 3 patents)

13. Masanori Abe (2 out of 22 patents)

14. Hiroshi Handa (2 out of 19 patents)

15. Takashi Nakagawa (2 out of 95 patents)

71 patents: Sort by Forward Citations

1. 9641052 - Connector of vehicular angled connector-integrated servo motor and production method thereof (2017-05-02),

2. 8399022 - Spherical ferrite nanoparticles and method for producing the same (2013-03-19),

3. 8394413 - Spherical ferrite nanoparticles and method for producing the same (2013-03-12),

4. 7852069 - Rotary angle detector (2010-12-14),

5. 7816912 - Angle detector including distinct magnetic stator portions (2010-10-19),

6. 7476996 - Resolver external conductor fixing structure (2009-01-13),

7. 7388527 - Method of detecting abnormality of R/D converter (2008-06-17),

8. 7102318 - Servo motor with a built-in drive circuit (2006-09-05),

9. 7042188 - Servo motor with a built-in drive circuit (2006-05-09),

10. 6950633 - Rotary non-contact connector and non-rotary non-contact connector (2005-09-27),

11. 6933698 - Method of driving a servo motor with a built-in drive circuit (2005-08-23),

12. 6930423 - Rotation angle detector (2005-08-16),

13. 6891492 - Method of converting an analog signal into a digital signal (2005-05-10),

14. 6873074 - Terminal connection structure of a resolver stator coil (2005-03-29),

15. 6838804 - Insulation cap structure for rotating machine (2005-01-04),

Tamagawa Seiki Kabushiki Kaisha is a leading manufacturer of high-precision gyroscopes, encoders, and motors. With over 80 years of experience, Tamagawa Seiki has earned a reputation for delivering innovative and reliable motion control solutions for various industries, including robotics, aerospace, automotive, and medical. Their commitment to quality and customer satisfaction has made them a trusted partner for global companies seeking advanced motion sensing and control technology.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

71 Patents

#1 in Nagano-ken

#1,360 in Japan

#10,056 in the World

Nagano-ken, Japan

Tamagawa Seiki Kabushiki Kaisha

Forward Citations = 636

56 inventors:

Hiroshi Kushihara (9 out of 13 patents)

Tsuneo Sugiura (8 out of 9 patents)

Hisashi Mimura (6 out of 9 patents)

4. Kanji Kitazawa (5 out of 8 patents)

5. Hiromi Ohshita (5 out of 5 patents)

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