Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7742364 | Timepiece display apparatus, movement, and timepiece | Imao Hiraga, Yoichi Hayashi, Kenichi Okuhara | 2010-06-22 |
| 7158449 | Electronic timepiece and electronic apparatus | Joji Kitahara | 2007-01-02 |
| 6934222 | Electronic timepiece including rotary weight and antenna | — | 2005-08-23 |
| 6804171 | Temperature difference drive unit, and electric device, timepiece and light electrical appliance having the same | Kenichi Miyazawa, Osamu Takahashi | 2004-10-12 |
| 6483276 | Electronic device with variable chopping signal and duty ratio selection for strong braking | Eisaku Shimizu, Kunio Koike, Hidenori Nakamura, Osamu Takahashi, Osamu Shinkawa | 2002-11-19 |