Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4261048 | Analog quartz timepiece | Jinro Motoki, Singo Ichikawa, Hiroyuki Uematsu, Mitsuhiro Murata, Hideyuki Kawashima +3 more | 1981-04-07 |
| 4198809 | Construction of an analogue crystal wrist watch | Ryo Namiki, Kotaro Takahashi | 1980-04-22 |