Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5038329 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa | 1991-08-06 |
| 4715725 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa, Hiroshi Ishii | 1987-12-29 |
| 4599005 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa, Hiroshi Ishii | 1986-07-08 |
| 4592630 | Ophthalmic lenses | — | 1986-06-03 |
| 4561739 | Trial spectacles | — | 1985-12-31 |
| 4537479 | Progressive multifocal ophthalmic lens | Toshihide Shinohara | 1985-08-27 |
| 4522507 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa, Hiroshi Ishii | 1985-06-11 |
| 4370065 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa, Hiroshi Ishii | 1983-01-25 |
| 4262353 | Transducer for electronic timepiece | Yoshikazu Kawamura | 1981-04-14 |
| 4212156 | Step motor control mechanism for electronic timepiece | Yoshikazu Kawamura, Minoru Hosokawa, Hiroshi Ishii | 1980-07-15 |
| 4192131 | Step motor control mechanism for electronic timepiece | Minoru Hosokawa, Hiroshi Ishii, Yoshikazu Kawamura | 1980-03-11 |