Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8491847 | Apparatus of catalyst for purifying exhaust gas and method for purifying exhaust gas | Katsuaki Kato, Takashi Yamada | 2013-07-23 |
| 8337791 | Exhaust gas purification catalyst, exhaust gas purification apparatus using the same and exhaust gas purification method | Akira Kohara, Takashi Yamada | 2012-12-25 |
| 8202819 | Catalyst system to be used in automobile exhaust gas purification apparatus, exhaust gas purification apparatus using the same and exhaust gas purification method | Akira Kohara, Katsuaki Katoh | 2012-06-19 |
| 8057745 | Catalyst system for vehicle exhaust gas purification devices, exhaust gas purification device using the same, and method for purification of exhaust gases | Yasunori Toyoda, Katsuaki Kato | 2011-11-15 |