Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9823624 | Method for producing timepiece spring, device for producing timepiece spring, timepiece spring, and timepiece | Kazuhiro Tsuchiya, Masao Takeuchi, Shoichi Nagao | 2017-11-21 |
| 7961558 | Timepiece | Noriaki Ozawa, Osamu Takahashi | 2011-06-14 |
| 7780342 | Spring device and timepiece | Osamu Takahashi, Nobuyuki Hirose, Masaaki Maejima | 2010-08-24 |
| 7742365 | Timepiece and portable device | Noriaki Ozawa | 2010-06-22 |
| 7590030 | Governor and a power generating device and an apparatus using the governor | Osamu Takahashi | 2009-09-15 |
| 7522478 | Timepiece | — | 2009-04-21 |
| 7378777 | Drive apparatus and device with same | Tadahiro Mizutani | 2008-05-27 |
| 7116037 | Rotary drive device | Tadahiro Mizutani | 2006-10-03 |
| 6872059 | Liquid discharger and apparatus including the liquid discharger | Osamu Takahashi | 2005-03-29 |
| 6863435 | Spring, mainspring, hairspring, and driving mechanism and timepiece based thereon | Fumio Takagi, Tatsuo Hara | 2005-03-08 |
| 6843594 | Spring, power spring, hair spring, driving mechanism utilizing them, and timepiece | Fumio Takagi, Tatsuo Hara | 2005-01-18 |
| 6633511 | Electronic controlling type mechanical timepiece | Hirokazu Sekino, Kinya Matsuzawa | 2003-10-14 |
| 6373788 | Electronically controlled mechanical timepiece | Osamu Takahashi | 2002-04-16 |
| 6097675 | Electronically controlled mechanical timepiece | Osamu Takahashi, Tatsuo Hara, Eiichi Nagasaka | 2000-08-01 |