Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622048 | Catalyst deterioration recovery device | Takashi Aoyama | 1997-04-22 |
| 5170363 | Fuel gauge system for indicating amount of mixed fuel | Toshio Hirota | 1992-12-08 |
| 5090389 | Fuel delivery control apparatus for engine operable on gasoline/alcohol fuel blend | — | 1992-02-25 |
| 4986241 | Internal combustion engine air-fuel ratio control system including alcohol sensor back-up control arrangement | Ryuzaburo Inoue | 1991-01-22 |
| 4982709 | Apparatus for controlling the idling speed of engine operable on gasoline/alcohol fuel blend | — | 1991-01-08 |
| 4751907 | Air/fuel ratio detecting apparatus for internal combustion engines | Tadahiro Yamamoto, Eiichi Ohnishi, Hiroaki Oogane, Minoru Osuga, Yoshishige Oyama | 1988-06-21 |
| 4579097 | Fuel supply apparatus and method for internal combustion engines | Tadahiro Yamamoto | 1986-04-01 |
| 4501709 | Variable venturi carburetor | Tadahiro Yamamoto | 1985-02-26 |