Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492790 | Driving system for driving AC motor | Toshifumi Yoshikawa, Naoto Ohnuma, Takao Kishikawa, Sadao Hokari | 2002-12-10 |
| 6490187 | Semiconductor electric power conversion device | Kazuhisa Mori, Asako Koyanagi, Satoshi Fukuda, Takao Kishikawa, Tomoharu Sakoda | 2002-12-03 |