Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9665069 | Electric generator device, timepiece movement, and timepiece | Yoshiki Hamatani, Masahiro Nakajima, Takashi Niwa, Toru Ozaki | 2017-05-30 |
| 9310772 | Metal structure, method of manufacturing metal structure, spring component, chronograph coupling lever for timepiece, and timepiece | Matsuo Kishi, Takashi Niwa | 2016-04-12 |