Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028296 | Regenerative heater of diesel engine particulate trap and diesel engine particulate trap using the same heater | Tutomu Ooka, Masataka Oji | 2000-02-22 |
| 5958095 | Regenerative heater of diesel engine particulate trap and diesel engine particulate trap using the same heater | Tutomu Ooka, Masataka Oji | 1999-09-28 |
| 5938802 | Exhaust gas purifier | Hidetoshi Saito, Shiro Nakajima, Noboru Yamasaki | 1999-08-17 |