Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062090 | Module for quartz watch | — | 1991-10-29 |
| 4629329 | Electronic wristwatch | — | 1986-12-16 |
| 4291400 | Electronic timepiece | Toshio Hiruta | 1981-09-22 |
| 4276627 | Module structure for electronic digital timepiece | — | 1981-06-30 |
| 4261049 | Wristwatch with solar cells | Toshio Hiruta | 1981-04-07 |
| 4236238 | Electronic digital timepiece having a stopwatch function and a timer function | Osamu Kamisawa | 1980-11-25 |
| 4202166 | Solid state watch module construction | Noriyuki Kasama, Keiji Tsukamoto, Tomomi Murakami | 1980-05-13 |