Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440378 | Catalyst for purifying exhaust gases, a method of producing the same, and a method of purifying exhaust gases | Hirohito Hirata | 2002-08-27 |
| 6372688 | Catalyst for purifying an exhaust gas and process for producing the same | Kouichi Yamashita | 2002-04-16 |
| 6362129 | Catalyst for purifying an exhaust gas | Yoshiharu Miyake | 2002-03-26 |