Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875335 | Apparatus and method for treating an exhaust gas from a diesel engine | Yoshimasa Arai, Satoshi Enamito | 1989-10-24 |
| 4875712 | Joint structure for a tube support plate and a tube | Tetsuo Takehara, Katsumi Higashi, Keiji Muramatsu | 1989-10-24 |
| 4867769 | Supporting structure for ceramic tubes in a gas system | Katsumi Higashi, Hiroshi Maeno | 1989-09-19 |
| 4838581 | Joint structure for a tube support plate and a tube | Tetsuo Takehara, Katsumi Higashi, Keiji Muramatsu | 1989-06-13 |
| 4833883 | Filter unit, and apparatus for treating particulates in an exhaust gas from a diesel engine | Tetsuo Takehara, Satoshi Enamito | 1989-05-30 |