Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831446 | Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the same | — | 2004-12-14 |
| 6800983 | Magnetic circuit structure, and power-generating device and electronic device using the same | Yoshitaka Iijima | 2004-10-05 |