Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617376 | Gear train structure of an electronic watch | Kuniharu Natori, Nobuhiro Koike | 1997-04-01 |
| 5506820 | Gear train structure of an electronic watch | Kuniharu Natori, Nobuhiro Koike | 1996-04-09 |