Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8085495 | Spindle motor and disk-shaped medium recording and producing device | Masafumi Kumoi | 2011-12-27 |
| 6583593 | Method and apparatus for position-sensorless motor control | Tomokuni Iijima, Kazushige Narazaki, Toru Tazawa, Ichiro Oyama | 2003-06-24 |
| 6462491 | Position sensorless motor control apparatus | Tomoyuki Iijima, Kazushige Narazaki, Toru Tazawa | 2002-10-08 |
| 6121736 | Control apparatus for motor, and motor unit having the control apparatus | Kazushige Narazaki, Tomokuni Iijima, Toru Tazawa, Yoshiaki Doyama | 2000-09-19 |
| 6081087 | Motor control apparatus | Tomokuni Iijima, Kazushige Narazaki, Yoshiaki Igarashi, Taro Kishibe | 2000-06-27 |