Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997830 | Method of purifying exhaust gas from internal combustion engine | Takashi Itoh, Kazuhiko Shiokawa | 1999-12-07 |
| 5821190 | Catalyst comprising iridium, alkaline metal, alkaline earth or rare earth metal, and metal carbide or metal nitride | Katsumi Kurabayashi, Takashi Ito, Makoto Nagata | 1998-10-13 |
| 5609839 | No.sub.x removal catalyst and method of purifying exhaust gas by using the same | Takashi Itoh, Takeshi Chonan, Takashi Matsuda, Yasuharu Kanno, Masao Wakabayashi +1 more | 1997-03-11 |
| 5559072 | No.sub.x removal catalyst and method of purifying exhaust gas by using the same | Takashi Itoh, Takeshi Chonan, Takashi Matsuda, Yasuharu Kanno, Masao Wakabayashi +1 more | 1996-09-24 |
| 5487268 | Catalyst for purifying exhaust gas and method of purifying exhaust gas | Takashi Itoh | 1996-01-30 |
| 5326735 | Iridium catalysts for purifying exhaust gas | Takashi Itoh | 1994-07-05 |
| 5306684 | Catalyst for purification of exhaust gases | Takashi Itoh, Hiroyuki Yamaguchi | 1994-04-26 |