Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358722 | Speed detector using resolver | Tohru Kai, Kenji Hirose, Koichiro Nakagawa | 1982-11-09 |
| 4358726 | Current type inverter | Tohru Kai, Kenji Hirose, Koichiro Nakagawa | 1982-11-09 |
| 4357569 | Control device for a synchronous motor | Tohru Kai, Kenji Hirose, Koichiro Nakagawa | 1982-11-02 |
| 4259628 | Control device of AC motor | Tohru Kai, Kenji Hirose, Koichiro Nakagawa | 1981-03-31 |