For the Inventor, By the Inventor

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Fuji Seiko Limited

USPTO Granted Patents = 17

% Expired Patents = 17.6

Forward Citations = 204

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51 inventors (with patents filed for the assignee):

Kiyotaka Shiga (6 out of 7 patents)

Akio Fukui (6 out of 13 patents)

Katutoshi Haga (5 out of 6 patents)

4. Mitsuhiko Tomioka (4 out of 4 patents)

5. Hajime Mizutani (3 out of 3 patents)

6. Shinobu Kaneko (3 out of 7 patents)

7. Kunio Kondo (3 out of 4 patents)

8. Yasuhiro Suzuki (2 out of 60 patents)

9. Yoshihiro Takasu (2 out of 2 patents)

10. Eiji Goto (2 out of 2 patents)

11. Yoshikazu Satow (2 out of 2 patents)

12. Katsumi Isogai (2 out of 3 patents)

13. Kazuhiro Shibata (2 out of 2 patents)

14. Tuguo Yoshikawa (2 out of 2 patents)

15. Tsunehisa Yamashita (2 out of 2 patents)

17 patents: Sort by Forward Citations

1. 8591389 - Tool transfer system (2013-11-26),

2. 8250720 - Roller burnishing apparatus with pressing-force detecting device (2012-08-28),

3. 7056072 - Method and apparatus for controlling movement of cutting blade and workpiece (2006-06-06),

4. 6758640 - Method and apparatus for controlling movement of cutting blade and workpiece (2004-07-06),

5. 6206617 - Reamer with guide surface and method of finishing hole by using the same (2001-03-27),

6. 5909985 - Drill having plate-like cutter member fixed at proximal end to shank and (1999-06-08),

7. 5312208 - Burnishing drill (1994-05-17),

8. 5282705 - Burnishing drill (1994-02-01),

9. 5243884 - Tool holder device having screw-operated means for connection and (1993-09-14),

10. 5112167 - High speed burnishing drill (1992-05-12),

11. 5071294 - Burnishing drill (1991-12-10),

12. 5030042 - Machining apparatus having means for changing radial position of cutting (1991-07-09),

13. 4944640 - Vertical feed type burnishing drill (1990-07-31),

14. 4643623 - Holder for rotary cutting tools (1987-02-17),

15. 4642005 - Holder for rotary cutting tools (1987-02-10),

Fuji Seiko Limited is a global manufacturing company specializing in precision components for various industries. With over 50 years of experience, we have become a trusted supplier of high-quality products such as gears, shafts, and bearings. Our commitment to innovation and customer satisfaction has enabled us to establish strong relationships with clients worldwide. Visit our website to learn more about our extensive range of offerings and how we can meet your specific requirements.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

17 Patents

#14 in Toyota

#3,225 in Japan

#35,857 in the World

Fuji Seiko Limited

Forward Citations = 204

51 inventors:

Kiyotaka Shiga (6 out of 7 patents)

Akio Fukui (6 out of 13 patents)

Katutoshi Haga (5 out of 6 patents)

4. Mitsuhiko Tomioka (4 out of 4 patents)

5. Hajime Mizutani (3 out of 3 patents)

Please report any incorrect information to [email protected]

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