Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662869 | Exhaust gas purification method and apparatus therefor | Fumio Abe, Junichi Suzuki | 1997-09-02 |
| 5664049 | Honeycomb heater | Tomoharu Kondo, Keiji Noda | 1997-09-02 |
| 5647203 | Exhaust gas purification system and exhaust gas purification method | Fumio Abe, Shigeharu Hashimoto | 1997-07-15 |