Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6988360 | Exhaust emission purification device for internal combustion engine | Koichi Kimura, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Shunsuke Toshioka +3 more | 2006-01-24 |
| 6945036 | Exhaust emission control filter and method of controlling exhaust emission | Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Kazuhiko Shiratani, Rentaro Kuroki | 2005-09-20 |
| 6901750 | Exhaust emission control apparatus and method for internal combustion engine | Shunsuke Toshioka, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +4 more | 2005-06-07 |
| 6837043 | Device for purifying the exhaust gas of an internal combustion engine | Koichiro Nakatani, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +3 more | 2005-01-04 |
| 6829891 | Exhaust emission control device and method of controlling exhaust emission | Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Kazuhiko Shiratani, Rentaro Kuroki | 2004-12-14 |
| 5941066 | Device for purifying the exhaust gas of an internal combustion engine | Yasushi Araki, Yoshimasa Watanabe | 1999-08-24 |