Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6609822 | Rate adjusting method of mechanical timepieces | Takeshi Tokoro, Masafumi Hoshino | 2003-08-26 |
| 6554468 | Mechanical timepiece with timed annular balance rotating angle control mechanism | Saburo Manaka, Takeshi Tokoro | 2003-04-29 |
| 6507537 | Power reserve mechanism | — | 2003-01-14 |