Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647206 | Exhaust emission purification apparatus | Takahiko Yamamoto, Hiroshi Mori, Masakazu Tanaka, Makoto Saito | 1997-07-15 |
| 5634332 | Exhaust gas purification apparatus | Masakazu Tanaka, Hiroshi Mori, Makoto Saito, Hiroyuki Usami, Takahiko Yamamoto | 1997-06-03 |
| 5634333 | Exhaust pipe opening and closing apparatus | Masakazu Tanaka, Hiroyuki Usami, Tatsuo Sakai, Kinji Hodaira | 1997-06-03 |