Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7845163 | Device for purifying exhaust gas of an internal combustion engine | Takamitsu Asanuma, Nobumoto Ohashi, Yoshihisa Tsukamoto | 2010-12-07 |
| 7832199 | Exhaust purification system for internal combustion engine | — | 2010-11-16 |
| 7752838 | Device for purifying exhaust gas of an internal combustion engine | Takamitsu Asanuma | 2010-07-13 |
| 7685812 | Exhaust purification device and exhaust purification method of internal combustion engine | Kohei Yoshida, Shinya Hirota, Takamitsu Asanuma, Yasuaki Nakano | 2010-03-30 |
| 7464542 | Exhaust gas purification system for internal combustion engine | Masaaki Kobayashi, Hisashi Ohki, Masaaki Yamaguchi, Kotaro Hayashi | 2008-12-16 |
| 7165394 | Exhaust gas purification system for internal combustion engine | Masaaki Kobayashi, Hisashi Ohki, Masaaki Yamaguchi, Kotaro Hayashi | 2007-01-23 |
| 7146800 | Exhaust purification device and exhaust purification method of internal combustion engine | Shinya Hirota, Takamitsu Asanuma, Yasuaki Nakano, Kohei Yoshida | 2006-12-12 |
| 6988360 | Exhaust emission purification device for internal combustion engine | Koichi Kimura, Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma +3 more | 2006-01-24 |
| 6901750 | Exhaust emission control apparatus and method for internal combustion engine | Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +4 more | 2005-06-07 |
| 6898930 | Exhaust gas purification device | Koichiro Nakatani, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +1 more | 2005-05-31 |
| 6883310 | Internal combustion engine emission control apparatus and method | Koichiro Nakatani, Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Koichi Kimura +1 more | 2005-04-26 |
| 6877312 | Exhaust emission control system of internal combustion engine | Koichiro Nakatani, Shinya Hirota | 2005-04-12 |
| 6837043 | Device for purifying the exhaust gas of an internal combustion engine | Koichiro Nakatani, Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma +3 more | 2005-01-04 |
| 6834496 | Exhaust gas purifying apparatus for internal combustion engine and control method thereof | Koichiro Nakatani, Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Koichi Kimura +1 more | 2004-12-28 |
| 6823664 | Exhaust gas purification device | Koichiro Nakatani, Shinya Hirota, Akira Mikami, Toshiaki Tanaka, Takamitsu Asanuma +1 more | 2004-11-30 |
| 6708486 | Exhaust gas purification device of internal combustion engine | Shinya Hirota, Toshiaki Tanaka | 2004-03-23 |
| 6672050 | Exhaust gas purification device of an engine | Hiroki Murata, Toshio Suematsu, Shizuo Sasaki, Kohei Igarashi, Shinya Hirota +5 more | 2004-01-06 |
| 6668548 | Exhaust emission control device of internal combustion engine | Takamitsu Asanuma, Shinya Hirota, Toshiaki Tanaka | 2003-12-30 |
| 6655133 | Exhaust gas purifier for internal combustion engine | Akira Mikami, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +4 more | 2003-12-02 |
| 6634167 | Exhaust temperature raising apparatus and method for internal combustion engine | Shinya Hirota, Takamitsu Asanuma, Toshiaki Tanaka | 2003-10-21 |
| 6502391 | Exhaust emission control device of internal combustion engine | Shinya Hirota, Toshiaki Tanaka | 2003-01-07 |
| 6381952 | Exhaust temperature raising apparatus and method for internal combustion engine | Takamitsu Asanuma, Shinya Hirota, Nobumoto Ohashi | 2002-05-07 |
| 6370869 | Exhaust purification device of an engine | Shinya Hirota, Takamitsu Asanuma, Toshiaki Tanaka | 2002-04-16 |
| 6212885 | Exhaust emission control system of internal combustion engine | Shinya Hirota, Toshiaki Tanaka, Satoshi Iguchi | 2001-04-10 |