Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7047727 | Rapid catalyst warm-up control device for internal combustion engine | Toshihiko Tanaka, Takaaki Itoh | 2006-05-23 |
| 7028673 | Evaporative fuel adsorption device | Takaaki Itou, Kouichi Oda, Minoru Honda, Hideki Suzuki, Toshiki Annoura +2 more | 2006-04-18 |
| 6945223 | Failure diagnostic apparatus for intake air stream control device and control method of failure diagnostic apparatus | — | 2005-09-20 |
| 6857415 | Control system for internal combustion engine | Ryozo Kayama, Toshiki Annoura, Takaaki Itoh | 2005-02-22 |
| 6797517 | Catalyst degradation detecting device and method thereof in internal combustion engine | Kazuhiro Sakurai, Takashi Watanabe | 2004-09-28 |
| 6732503 | Air/fuel ratio controller for internal combustion engine | Kenji Harima, Hiromasa Suzuki, Takashi Watanabe | 2004-05-11 |
| 6729305 | Fuel injection amount control apparatus and method for internal combustion engine | — | 2004-05-04 |
| 6401450 | Catalyst deterioration detector and method of detecting deterioration of catalyst | — | 2002-06-11 |
| 6370872 | Exhaust gas purifier for internal combustion engine | Takashi Watanabe, Kazuhiro Sakurai | 2002-04-16 |
| 6324893 | Diagnostic apparatus and method for adsorbent | Takashi Watanabe | 2001-12-04 |
| 6321530 | Exhaust gas purifier and method of purifying exhaust gas for a hybrid vehicle | Kazuhiro Sakurai, Takashi Watanabe | 2001-11-27 |
| 6321533 | Exhaust passage switching unit and method for internal combustion engine | Takashi Watanabe, Kazuhiro Sakurai | 2001-11-27 |
| 6253547 | Apparatus and method for determining amount of unburned fuel component adsorbed by an adsorbent in an internal combustion engine | Takashi Watanabe | 2001-07-03 |
| 6128898 | Exhaust gas purifying apparatus for internal combustion engine | Kazuhiro Sakurai, Takaaki Itou, Yukio Kinugasa, Koichi Takeuti | 2000-10-10 |
| 6122910 | Exhaust gas purifying apparatus for an internal combustion engine | Yukio Kinugasa, Takaaki Itou | 2000-09-26 |
| 5979157 | Method and a device for purifying exhaust gas of an internal combustion engine | Yukio Kinugasa, Takaaki Itou, Koichi Takeuchi | 1999-11-09 |
| 5964088 | Device for purifying exhaust gas of engine | Yukio Kinugasa, Takaaki Itou, Naoto Suzuki, Koichi Takeuchi, Takehisa Yaegashi +1 more | 1999-10-12 |
| 5823163 | Intake air-flow control device for an internal combustion engine | — | 1998-10-20 |
| 5509397 | Air supply system preventing backflow | — | 1996-04-23 |
| 5271223 | Exhaust gas purifying device of an engine | — | 1993-12-21 |
| 4993392 | Apparatus for controlling heater for heating oxygen sensor | Hiroshi Tanaka, Masaru Goudo, Mitsuhiro Suzuki, Ritsuo Masaki | 1991-02-19 |