Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849398 | Catalyst for purifying exhaust gases | Toshihiro Takada, Shinichi Matsumoto | 1989-07-18 |
| 4843056 | Exhaust gas purifying catalyst and process for producing the same | Shinichi Matsumoto, Hideaki Muraki, Hideo Sobukawa, Masayuki Fukui, Mareo Kimura +1 more | 1989-06-27 |
| 4808564 | Catalyst for the purification of exhaust gases | Shinichi Matsumoto, Masayasu Sato | 1989-02-28 |