Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375416 | Air-fuel ratio sensor deterioration-detecting device for internal combustion engines | Toshihiko Sato, Yasunari Seki, Tsuyoshi Takizawa, Takayoshi Nakayama | 1994-12-27 |
| 5355864 | Evaporative fuel-processing system for internal combustion engines | Shigetaka Kuroda, Kazutomo Sawamura, Hiroshi Maruyama, Masayoshi Yamanaka, Tsuyoshi Takizawa | 1994-10-18 |
| 5325664 | System for determining deterioration of catalysts of internal combustion engines | Yasunari Seki, Toshihiko Sato, Katuhiro Kumagai, Hiroshi Maruyama, Tsuyoshi Takizawa +8 more | 1994-07-05 |