Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6717387 | Generator apparatus | Yoshiaki Kotani, Tsutomu Wakitani | 2004-04-06 |
| 6630816 | Grid-type engine generator apparatus for connecting an output of an engine-driven generator to a power network | Yoshiaki Kotani, Kenji Kamimura | 2003-10-07 |