Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477833 | Engine exhaust emission control | Akira Tayama, Hirofumi Tsuchida, Toshikazu Shiino | 2002-11-12 |
| 6230697 | Integrated internal combustion engine control system with high-precision emission controls | Hiroyuki Itoyama | 2001-05-15 |
| 6170469 | Integrated internal combustion engine control system with high-precision emission controls | Hiroyuki Itoyama | 2001-01-09 |
| 6032656 | Integrated internal combustion engine control system with high-precision emission controls | Hiroyuki Itoyama | 2000-03-07 |
| 5918582 | Integrated internal combustion engine control system with high-precision emission controls | Hiroyuki Itoyama | 1999-07-06 |