Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8161794 | Sulfur component detecting device | Hiroshi Otsuki, Takamitsu Asanuma, Kohei Yoshida, Hiromasa Nishioka, Shinya Hirota | 2012-04-24 |
| 8104271 | Exhaust purification device and exhaust purification method of internal combustion engine | Kohei Yoshida, Shinya Hirota, Takamitsu Asanuma, Hiromasa Nishioka, Hiroshi Otsuki | 2012-01-31 |
| 8104266 | Exhaust purification device of internal combustion engine | Hiroshi Otsuki, Takamitsu Asanuma, Kohei Yoshida, Hiromasa Nishioka, Shinya Hirota | 2012-01-31 |
| 8047063 | Exhaust purification device of internal combustion engine | Shinya Hirota, Takamitsu Asanuma, Kohei Yoshida, Hiromasa Nishioka, Hiroshi Otsuki | 2011-11-01 |
| 8033100 | Exhaust purification device of compression ignition type internal combustion engine | Kohei Yoshida | 2011-10-11 |
| 7966810 | Control device and exhaust purification method of internal combustion engine | Hiroshi Ito, Tetsuya Yamashita, Shinichi Takeshima | 2011-06-28 |
| 7891175 | Exhaust purification device of compression ignition type internal combustion engine | Kohei Yoshida | 2011-02-22 |
| 7464542 | Exhaust gas purification system for internal combustion engine | Shunsuke Toshioka, Masaaki Kobayashi, Hisashi Ohki, Masaaki Yamaguchi | 2008-12-16 |
| 7454900 | Catalyst recovery method | — | 2008-11-25 |
| 7390207 | Self-aligning connector | Takamitsu Noguchi, Shigeru Ishikawa | 2008-06-24 |
| 7296401 | Device for purifying the exhaust gas of an internal combustion engine | Takamitsu Asanuma, Toshiaki Tanaka, Shinya Hirota, Kazuhiro Itoh, Koichiro Nakatani +3 more | 2007-11-20 |
| 7165394 | Exhaust gas purification system for internal combustion engine | Shunsuke Toshioka, Masaaki Kobayashi, Hisashi Ohki, Masaaki Yamaguchi | 2007-01-23 |
| 6619035 | Exhaust emission control device of internal combustion engine | Hiroki Matsuoka, Souichi Matsushita, Yukihiro Tsukasaki, Shinobu Ishiyama, Yasuhiro Ohtsubo +7 more | 2003-09-16 |
| 6370871 | Internal combustion engine having lean NOx catalyst | Makoto Suzuki, Hideo Kobayashi, Shinya Hirota, Toshiaki Tanaka | 2002-04-16 |
| 6266956 | Exhaust emission control system of hybrid car | Makoto Suzuki, Hideo Kobayashi | 2001-07-31 |
| 4934142 | Exhaust emission control device for a diesel engine | Tokuta Inoue, Sumio Ito, Kiyoshi Kobashi, Shinichi Takeshima | 1990-06-19 |
| 4916897 | Exhaust gas purifying apparatus built-in to a muffler for a diesel engine | Tokuta Inoue, Sumio Ito, Kiyoshi Kobashi, Shinichi Takeshima | 1990-04-17 |
| 4875336 | Exhaust gas emission control device for diesel engine | Sumio Ito, Kiyoshi Kobashi | 1989-10-24 |