Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6510834 | Control for spark-ignited direct fuel injection internal combustion engine | Masayuki Tomita, Iwao Yoshida | 2003-01-28 |
| 6475446 | Carrier body for exhaust gas catalysts | Tetsuro Horiike, Hideaki Takahashi | 2002-11-05 |
| 6447735 | Exhaust purifier and manufacturing method of same | Fuminori Yamanashi | 2002-09-10 |
| 6408816 | Control apparatus and method for direct-injection spark-ignition internal combustion engine | Masayuki Tomita | 2002-06-25 |
| 6347514 | Air-fuel ratio control system for engine | Hideaki Takahashi | 2002-02-19 |
| 6341487 | Catalyst temperature control device and method of internal combustion engine | Hideaki Takahashi | 2002-01-29 |
| 6340014 | Control for direct fuel injection spark ignition internal combustion engine | Masayuki Tomita | 2002-01-22 |
| 6334306 | Exhaust gas purification apparatus in combustion engine | Kouichi Mori, Ritsuo Sato | 2002-01-01 |
| 6303084 | Exhaust emission control device | Hidetoshi Ito, Ritsuo Sato | 2001-10-16 |
| 6296813 | Exhaust emission control catalyst apparatus in internal combustion engine | Hitoshi Ishii | 2001-10-02 |
| 6263666 | Exhaust emission control device for internal combustion engine | Kengo Kubo, Yasuji Ishizuka | 2001-07-24 |
| 6237330 | Exhaust purification device for internal combustion engine | Hideaki Takahashi, Takeshi Nakamura | 2001-05-29 |
| 6233923 | Exhaust emission control device of internal combustion engine | Hidetoshi Itou, Hideaki Takahashi | 2001-05-22 |
| 6230489 | Emission control device for internal combustion engine | Mikio Tsuzuki, Ritsuo Sato, Naoki Kachi | 2001-05-15 |
| 6220018 | Exhaust emission control device | Fuminori Yamanashi, Mikio Tsuzuki, Ritsuo Sato | 2001-04-24 |
| 6216450 | Exhaust emission control system for internal combustion engine | Hideaki Takahashi | 2001-04-17 |
| 6192679 | Exhaust purification device and method for internal combustion engine | Takeshi Nakamura, Ritsuo Sato | 2001-02-27 |
| 6185933 | Exhaust emission control device for engine | Mikio Tsuzuki, Ritsuo Sato | 2001-02-13 |
| 6185929 | Exhaust emission control system for internal combustion engine | Yasuji Ishizuka | 2001-02-13 |
| 6170260 | Exhaust emission control apparatus for combustion engine | Hitoshi Ishii | 2001-01-09 |
| 6145304 | Deterioration determination apparatus for exhaust emission control device of internal combustion engine | Hideaki Takahashi | 2000-11-14 |
| 6116023 | Internal combustion engine with NOx absorbent catalyst | Yasuji Ishizuka | 2000-09-12 |
| 6101809 | Exhaust gas purifying system of internal combustion engine | Yasuji Ishizuka | 2000-08-15 |
| 6057263 | Metallic catalyst carrier | Hideaki Takahashi | 2000-05-02 |
| 6014962 | Engine air-fuel ratio controller | Ritsuo Sato | 2000-01-18 |