Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5764442 | Rotary head drum with shielding of heads and rotary transformers | Izumi Komatsu, Kiyohiko Ushiyama, Isao Ushikoshi | 1998-06-09 |
| 5373208 | DC motor with anti-vibration brush mounts | Hidenao Ichimura, Shunji Matsushima | 1994-12-13 |