Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5904902 | Exhaust purifier for internal combustion engine | Masaaki Tanaka, Shigemitu Iisaka, Michio Furuhashi, Toshinari Nagai, Tadayuki Nagai +3 more | 1999-05-18 |
| 5814283 | Exhaust purifier of internal combustion engine | Masaaki Tanaka, Shigemitu Iisaka, Michio Furuhashi, Toshinari Nagai, Tadayuki Nagai +3 more | 1998-09-29 |
| 5811884 | Automotive onboard load control apparatus and method | Masaaki Tanaka, Sigemitu Iisaka, Michio Furuhashi, Toshinari Nagai, Tadayuki Nagai +4 more | 1998-09-22 |