Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005784 | Voltage type inverter device and method of controlling the same | — | 1999-12-21 |
| 5631813 | Regenerative AC/DC/AC power converter for a plurality of motors | — | 1997-05-20 |
| 5497289 | Inverter apparatus and method therefor | Eiichi Sugishima, Naohiro Hirose, Shinzo Tomonaga | 1996-03-05 |