Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692691 | Pb-free soldering alloy | Tadashi Sawamura, Hisashi Komiya, Tsuguo Inazawa | 2004-02-17 |
| 6144124 | Thin DC brushless motor having an air gap formed therein | Yoshihisa Katoh | 2000-11-07 |
| 5789834 | Spindle motor | Yoshihisa Katoh, Yasuo Sasaki | 1998-08-04 |
| 5170082 | Yoke of stepping motor and method for manufacturing the same | Masami Wada | 1992-12-08 |
| 5020211 | Method for manufacturing a yoke for a stepping motor | Masami Wada | 1991-06-04 |
| 4972467 | Echo canceller | Akira Kanemasa | 1990-11-20 |
| 4965823 | Echo canceller | Akira Kanemasa | 1990-10-23 |