Issued Patents All Time
Showing 26–50 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7059113 | Exhaust gas purification device | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura | 2006-06-13 |
| 7040087 | Device for purifying exhaust gas for engine | Shinya Hirota | 2006-05-09 |
| 7001442 | Particulate filter for an internal combustion engine and method for producing the same | Haruo Ooishi, Shuji Watanabe, Shinya Hirota | 2006-02-21 |
| 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 | Shunsuke Toshioka, Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma +4 more | 2005-06-07 |
| 6898930 | Exhaust gas purification device | Shinya Hirota, Shunsuke Toshioka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +1 more | 2005-05-31 |
| 6883310 | Internal combustion engine emission control apparatus and method | Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Koichi Kimura, Shunsuke Toshioka +1 more | 2005-04-26 |
| 6877312 | Exhaust emission control system of internal combustion engine | Shinya Hirota, Shunsuke Toshioka | 2005-04-12 |
| 6874316 | Device for purifying the exhaust gas of an internal combustion engine | — | 2005-04-05 |
| 6874315 | Exhaust gas purification device | Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura, Kiyoshi Nakanishi +1 more | 2005-04-05 |
| 6837043 | Device for purifying the exhaust gas of an internal combustion engine | Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +3 more | 2005-01-04 |
| 6834496 | Exhaust gas purifying apparatus for internal combustion engine and control method thereof | Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Shunsuke Toshioka, Koichi Kimura +1 more | 2004-12-28 |
| 6823665 | Exhaust gas purification device | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura | 2004-11-30 |
| 6823664 | Exhaust gas purification device | Shinya Hirota, Akira Mikami, Toshiaki Tanaka, Takamitsu Asanuma, Koichi Kimura +1 more | 2004-11-30 |
| 6820418 | Exhaust gas purification apparatus | Toshiaki Tanaka, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma | 2004-11-23 |
| 6820845 | Tripod | — | 2004-11-23 |
| 6786041 | Exhaust gas purification method and exhaust gas purification apparatus | Kazuhiro Itoh, Toshiaki Tanaka, Shinya Hirota, Koichi Kimura | 2004-09-07 |
| 6769245 | Exhaust gas purification method | Kazuhiro Itoh, Toshiaki Tanaka, Shinya Hirota, Koichi Kimura | 2004-08-03 |
| 6761501 | Telescoping device and tripod | — | 2004-07-13 |
| 6739559 | Panhead | — | 2004-05-25 |
| 6725651 | Reducing agent for emission control system, reducing-agent supply device, and emission control system using the reducing agent | Kazuhiro Itoh, Toshiaki Tanaka, Shinya Hirota, Shigeki Daido, Naohisa Oyama | 2004-04-27 |
| 6681566 | Exhaust purifying method and apparatus of an internal combustion engine | Kazuhiro Itoh, Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Koichi Kimura | 2004-01-27 |
| 6679052 | Emission control apparatus | Shinya Hirota | 2004-01-20 |
| 6655133 | Exhaust gas purifier for internal combustion engine | Akira Mikami, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura +4 more | 2003-12-02 |
| 6644022 | Exhaust gas purification device of internal combustion engine | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura | 2003-11-11 |