Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4543692 | Clasp for ornaments | Toshikazu Hatsuse, Hiroshi Shiina | 1985-10-01 |
| 4407590 | Battery unit for an electric timepiece | Hideshi Ohno, Kazunari Kume, Takatoshi Osaka, Katsuo Nishimura, Munetaka Tamaru | 1983-10-04 |
| 4255801 | Electronic watch | Toshikazu Hatuse | 1981-03-10 |
| 4210798 | Device for detachably mounting glass on timepiece cases | Toshikazu Hatuse | 1980-07-01 |