Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834496 | Exhaust gas purifying apparatus for internal combustion engine and control method thereof | Koichiro Nakatani, Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Shunsuke Toshioka +1 more | 2004-12-28 |
| 6823664 | Exhaust gas purification device | Koichiro Nakatani, Shinya Hirota, Toshiaki Tanaka, Takamitsu Asanuma, Koichi Kimura +1 more | 2004-11-30 |
| 6672050 | Exhaust gas purification device of an engine | Hiroki Murata, Toshio Suematsu, Shizuo Sasaki, Kohei Igarashi, Shinya Hirota +5 more | 2004-01-06 |