Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381657 | Catalyst deterioration-detecting system for internal combustion engines | Tsuyoshi Takizawa, Yasunari Seki, Toshihiko Sato, Takayoshi Nakayama | 1995-01-17 |
| 5379591 | Air-fuel ratio control system for internal combustion engines | Naoki Iida, Tsuyoshi Takizawa, Yasunari Seki, Toshihiko Sato, Takayoshi Nakayama | 1995-01-10 |
| 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 |
| 5216882 | System for detecting deterioration of HC sensors for internal combustion engines | Shigetaka Kuroda | 1993-06-08 |
| 5182907 | System for monitoring performance of HC sensors for internal combustion engines | Shigetaka Kuroda | 1993-02-02 |
| 5179833 | System for detecting deterioration of a three-way catalyst of an internal combustion engine | Shigetaka Kuroda | 1993-01-19 |
| 4807294 | Piezoelectric and foam resin sheet speaker | Nubuo Tanaka, Junichi Katurayama | 1989-02-21 |
| 4371060 | Pad clip for disc brake | — | 1983-02-01 |
| 4276964 | Caliper carrying structure of pin-slide type disc brake | — | 1981-07-07 |