Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689166 | Method and apparatus for controlling hybrid excitation type permanent magnet synchronous motor | Kazutoshi Nagayama, Tadashi Ashikaga | 1997-11-18 |
| 5682073 | Hybrid excitation type permanent magnet synchronous motor | — | 1997-10-28 |