Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448942 | Engine piston | Takayuki Arai, Takaharu Goto | 1995-09-12 |
| 5319930 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Nobukazu Kanesaki | 1994-06-14 |
| 5287698 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Nobukazu Kanesaki | 1994-02-22 |
| 5207990 | Exhaust gas purifying device for internal combustion engine | Tetsuya Kamihara, Eiji Aiyoshizawa | 1993-05-04 |
| 5195318 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Nobukazu Kanesaki | 1993-03-23 |
| 5195316 | Exhaust gas purifying device for an internal combustion engine | Motohiro Shinzawa, Shunichi Aoyama, Nobukazu Kanesaki | 1993-03-23 |
| 5146900 | Apparatus for treating exhaust particulates resulting from combustion in diesel engine | — | 1992-09-15 |
| 5024194 | Flame dispersion arrangement for swirl chamber type diesel engine piston crown | Motohiro Shinzawa | 1991-06-18 |
| 4881501 | Diesel engine having shaped flame dispersing recess in piston crown | Motohiro Shinzawa | 1989-11-21 |