Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7132770 | Axial-air-gap brushless vibration motor containing drive circuit | Tadao Yamaguchi, Tetsushi Yashima, Masahiro Takagi, Kentaro Fujii | 2006-11-07 |
| 7049721 | Eccentric rotor and a vibrating motor using the same | Tadao Yamaguchi, Masahiro Takagi | 2006-05-23 |
| 6998742 | Axial-air-gap brushless vibration motor containing drive circuit | Tadao Yamaguchi, Tetushi Yashima, Masahiro Takagi, Kentaro Fujii | 2006-02-14 |