Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5904902 | Exhaust purifier for internal combustion engine | Hiroki Matuoka, Masaaki Tanaka, Michio Furuhashi, Toshinari Nagai, Tadayuki Nagai +3 more | 1999-05-18 |
| 5814283 | Exhaust purifier of internal combustion engine | Hiroki Matuoka, Masaaki Tanaka, Michio Furuhashi, Toshinari Nagai, Tadayuki Nagai +3 more | 1998-09-29 |