Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8341940 | Addition-amount controller for exhaust gas purifying agent and exhaust emission control system | Ataru Ichikawa | 2013-01-01 |
| 8119988 | Collection-amount detection method for particulate matters and collection-amount detection apparatus therefor and exhaust-gas converting apparatus | Naohisa Oyama, Hitoshi Kato, Shinji Tsuji, Juji Suzuki, Takayuki Shibuya +1 more | 2012-02-21 |
| 6739177 | Combustible-gas sensor, diagnostic device for intake-oxygen concentration sensor, and air-fuel ratio control device for internal combustion engines | Fumihiko Sato, Takuji Matsubara, Mamoru Yoshioka, Yoshihiko Hyoudo, Takayuki Takeuchi +1 more | 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, Koichiro Nakatani, Naohisa Oyama | 2004-04-27 |
| 4784102 | Fuel injector and fuel injection system | Toshihiko Igashira, Yasuyuki Sakakibara, Kazuhide Watanabe, Masahiro Takigawa, Toru Yoshinaga +1 more | 1988-11-15 |