Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6072752 | Hand display-type electronic timepiece | Kiyotaka Igarashi, Kenji Fujita | 2000-06-06 |
| 5331608 | Electronic watch with an antenna for a receiving device | Toshio Umemoto, Toshio Hiruta | 1994-07-19 |
| 4783772 | Wristwatch with pressure sensor | Toshio Umemoto, Toshio Hiruta, Hideo Uehara, Masato Yamada | 1988-11-08 |