Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431746 | Mechanical timepiece with timed annular balance rotating angle control mechanism | Takeshi Tokoro | 2002-08-13 |
| 6422348 | Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel | Mitsuru Ishii | 2002-07-23 |
| 6406176 | Chronograph timepiece | Takashi Takahashi, Katsuyoshi Takizawa | 2002-06-18 |