Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10159934 | Exhaust gas purification catalyst | Keiichi Narita, Yasutaka Nomura, Ryota Onoe, Yuta Morishita, Junji Kuriyama +8 more | 2018-12-25 |
| 9683470 | Exhaust gas control apparatus for internal combustion engine | Takahiko Fujiwara, Norihisa Nakagawa, Kouichi Kimura, Shuntaro Okazaki, Keisuke Nagasaka +2 more | 2017-06-20 |
| 8680004 | Exhaust gas-purifying catalyst | Akimasa Hirai, Kenichi Taki | 2014-03-25 |
| 8309488 | Exhaust gas purifying catalyst | Kenichi Taki, Akimasa Hirai | 2012-11-13 |
| 8168560 | Exhaust gas purifying catalyst | Kenichi Taki, Akimasa Hirai | 2012-05-01 |
| 8039418 | Exhaust gas-purifying catalyst | Akimasa Hirai, Kenichi Taki | 2011-10-18 |
| 7998896 | Exhaust gas purifying catalyst | Kenichi Taki, Akimasa Hirai | 2011-08-16 |
| 7737077 | Catalyst for purifying exhaust gases | Akimasa Hirai, Kenichi Taki | 2010-06-15 |