Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922293 | Process for purifying exhaust gases | Naoto Miyoshi, Mareo Kimura, Yuzo Kawai | 1999-07-13 |
| 5686377 | Catalyst for purifying exhaust gases | Kouji Banno, Masahiro Sugiura, Haruo Doi, Tetsuo Nagami, Norihiko Aono +2 more | 1997-11-11 |