Issued Patents All Time
Showing 76–100 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373823 | Failure-detecting device and fail-safe device for tank internal pressure sensor of internal combustion engine | Kazutomo Sawamura, Masayoshi Yamanaka, Hiroshi Maruyama | 1994-12-20 |
| 5373732 | Combustion state-detecting system for internal combustion engines | Kazutomo Sawamura, Kenichi Maeda, Yuichi Shimasaki | 1994-12-20 |
| 5357789 | Misfire detection system for internal combustion engine | Kazutomo Sawamura, Hiroshi Maruyama, Masayoshi Yamanaka | 1994-10-25 |
| 5355863 | Evaporative fuel-processing system for internal combustion engines | Masayoshi Yamanaka, Hiroshi Maruyama, Takeshi Suzuki, Kazutomo Sawamura | 1994-10-18 |
| 5355864 | Evaporative fuel-processing system for internal combustion engines | Kazutomo Sawamura, Hiroshi Maruyama, Masayoshi Yamanaka, Yoichi Iwata, Tsuyoshi Takizawa | 1994-10-18 |
| 5327090 | Misfire-detecting system for an internal combustion engine which detects a misfire due to the fuel supply system | Yuuichi Shimasaki, Masaki Kanehiro, Takuji Ishioka, Takashi Hisaki, Shigeru Maruyama +2 more | 1994-07-05 |
| 5325664 | System for determining deterioration of catalysts of internal combustion engines | Yasunari Seki, Toshihiko Sato, Katuhiro Kumagai, Hiroshi Maruyama, Yoichi Iwata +8 more | 1994-07-05 |
| 5305724 | Evaporative fuel control unit for internal combustion engine | Masataka Chikamatsu, Kazutomo Sawamura, Toshihiko Sato, Takayoshi Nakayama | 1994-04-26 |
| 5303158 | Misfire-detecting system for an internal combustion engine | — | 1994-04-12 |
| 5299545 | Evaporative fuel-processing system for internal combustion engines | Kazutomo Sawamura, Masayoshi Yamanaka, Hiroshi Maruyama, Masataka Chikamatsu, Shoichi Nemoto +1 more | 1994-04-05 |
| 5269277 | Failure-detecting device and fail-safe device for tank internal pressure sensor of internal combustion engines | Kazutomo Sawamura, Masayoshi Yamanaka, Hiroshi Maruyama | 1993-12-14 |
| 5267547 | Tank internal pressure-detecting device for internal combustion engines | Masataka Chikamatsu, Masayoshi Yamanaka, Hiroshi Maruyama, Kazutomo Sawamura | 1993-12-07 |
| 5251592 | Abnormality detection system for evaporative fuel control systems of internal combustion engines | Yasunari Seki, Kazutomo Sawamura, Masatoshi Udagawa, Youichi Iwata, Takushi Toda | 1993-10-12 |
| 5237279 | Ignition and fuel system misfire-detecting system for internal combustion engines | Yuuichi Shimasaki, Masataka Chikamatsu, Takuji Ishioka, Hideaki Arai | 1993-08-17 |
| 5226394 | Misfire-detecting system for internal combustion engines | Yuuichi Shimasaki, Masataka Chikamatsu, Takuji Ishioka, Hideaki Arai, Masaki Kanehiro +2 more | 1993-07-13 |
| 5221904 | Misfire-detecting system for internal combustion engines | Yuuichi Shimasaki, Masataka Chikamatsu, Takuji Ishioka, Hideaki Arai | 1993-06-22 |
| 5216882 | System for detecting deterioration of HC sensors for internal combustion engines | Yoichi Iwata | 1993-06-08 |
| 5215067 | Misfire-detecting system for internal combustion engines | Yuuichi Shimasaki, Masaki Kanehiro, Takuji Ishioka, Takashi Hisaki, Shigeru Maruyama +3 more | 1993-06-01 |
| 5191762 | System for detecting deterioration of a three-way catalyst of an internal combustion engine | Hiroshi Ono | 1993-03-09 |
| 5182907 | System for monitoring performance of HC sensors for internal combustion engines | Yoichi Iwata | 1993-02-02 |
| 5179833 | System for detecting deterioration of a three-way catalyst of an internal combustion engine | Yoichi Iwata | 1993-01-19 |
| 5158059 | Method of detecting abnormality in an internal combustion engine | — | 1992-10-27 |
| 5140810 | Method of detecting failure in a secondary air supply system for internal combustion engines | — | 1992-08-25 |
| 5085194 | Method of detecting abnormality in an evaporative fuel-purging system for internal combustion engines | Hisashi Igarashi, Hidekazu Kano, Takeshi Suzuki | 1992-02-04 |
| 5070847 | Method of detecting abnormality in fuel supply systems of internal combustion engines | Eitetsu Akiyama, Toshikazu Oketani | 1991-12-10 |