Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9200559 | Combustion chamber for large gas engine | Hiroyoshi Ishii | 2015-12-01 |
| 9140229 | Knocking control system for gas engine | Tsukasa Imamura, Tomohiko Sugimoto, Hiroyoshi Ishii | 2015-09-22 |
| 8783226 | Knocking control system for gas engine | Tsukasa Imamura, Tomohiko Sugimoto, Hiroyoshi Ishii | 2014-07-22 |