Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267219 | Engine system | Akihiro Nagao, Hiroyuki Okada | 2019-04-23 |
| 9777606 | Engine system | Akihiro Nagao, Hiroyuki Okada | 2017-10-03 |
| 9689289 | Engine-exhaust-system apparatus and package-type engine electric power generator | Ruriko Terada, Tatsuya Kawano | 2017-06-27 |
| 4245483 | System for purifying contaminated refrigerant and reproducing the same for use with freezing liquid spray refrigerator | — | 1981-01-20 |