Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853909 | Time correction mechanism for an analog timepiece using plastic gears for transmitting the rotation of the manual operation member to the hands | Mitsunobu Yatabe | 1989-08-01 |
| 4785434 | Slip structure of a timepiece | Wataru Yamada, Masayoshi Tanazawa, Mitsunobu Yatabe, Kenichi Nakamura, Satoshi Fujio +3 more | 1988-11-15 |
| 4727524 | Watch with integral band and case | Toshiyuki Sekine | 1988-02-23 |
| 4711584 | Movement of electronic watch of analog display type | Masayoshi Tanazawa, Wataru Yamada | 1987-12-08 |