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Toyota-shi, Aichi, Japan

O-Oka Corporation

USPTO Granted Patents = 12

CIPO Patents = 1

EPO Patents = 6

Trademarks = 2

Forward Citations = 23

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8 inventors (with patents filed for the assignee):

Junichi Ooka (5 out of 5 patents)

Mitsuhiko Shimomura (5 out of 5 patents)

Mitsushige O-oka (2 out of 2 patents)

4. Yoshiki Kawasaki (2 out of 2 patents)

5. Tomoyoshi Okada (2 out of 2 patents)

6. Makoto Kimura (1 out of 11 patents)

7. Mitsushige Ooka (1 out of 1 patent)

8. Shinya Yamazaki (1 out of 1 patent)

9. Hiroshi Tsujimoto (27 patents)

10. Tetsuya Hoguchi (2 patents)

11. Mitsushige O-Oka (0 patent)

12. Junichi c/o O-Oka Corporation Ooka (0 patent)

13. Mitsuhiko c/o O-Oka Corporation Shimomura (0 patent)

14. Mitsushige O-Oka (0 patent)

15. Mitsushige O-Oka (0 patent)

12 patents: Sort by Forward Citations

1. 9091338 - Free-form surface gear (2015-07-28),

2. 8196488 - Gear (2012-06-12),

3. 7490529 - Gear for transmission and method for manufacturing the same (2009-02-17),

4. 7484611 - Speed change gear with dog clutch pawl, and method and device of manufacturing the same (2009-02-03),

5. 7437967 - Gear having window holes, and method and apparatus for manufacturing the same (2008-10-21),

6. 7424834 - Gear, method and device for manufacturing the same (2008-09-16),

7. 7337647 - Gear and method and device for manufacturing the gear (2008-03-04),

8. 7267024 - Gear, and method and apparatus for manufacturing the same (2007-09-11),

9. 6935482 - Clutch gear having boss part with spline and method for manufacturing the same (2005-08-30),

10. 6905011 - Transmission gear with dog clutch gear and method for manufacturing the same (2005-06-14),

11. 6761621 - Gear and method of manufacturing gear (2004-07-13),

12. 6432017 - Sprocket with dog gear (2002-08-13),

O-OKA CORPORATION is a global technology company specialized in creating innovative software solutions and providing advanced consulting services. With a focus on delivering cutting-edge solutions, O-OKA CORPORATION helps businesses across various industries to optimize their operations, streamline processes, and achieve digital transformation. Their team of experts combines deep industry knowledge with the latest technologies to develop custom software applications, cloud-based solutions, mobile apps, and more. O-OKA CORPORATION is committed to delivering exceptional value to its clients and building long-term partnerships based on trust and collaboration.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

12 Patents

#1 in Toyota-shi, Aichi

#3,840 in Japan

#46,762 in the World

Toyota-shi, Aichi, Japan

O-Oka Corporation

Forward Citations = 23

8 inventors:

Junichi Ooka (5 out of 5 patents)

Mitsuhiko Shimomura (5 out of 5 patents)

Mitsushige O-oka (2 out of 2 patents)

4. Yoshiki Kawasaki (2 out of 2 patents)

5. Tomoyoshi Okada (2 out of 2 patents)

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