Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867811 | Processes for production of metallic catalyst-carrier and catalytic component | Hiroo Wakiyama, Hisashi Baba, Mikio Yamanaka, Keiichi Ohmura, Shinichi Matsumoto +4 more | 1989-09-19 |
| 4849398 | Catalyst for purifying exhaust gases | Shinichi Matsumoto, Naoto Miyoshi | 1989-07-18 |