Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247793 | Exhaust purification system for multiple cylinder engines | Hideki Yamada, Shigeki Yamashita, Kazuo Tanaka | 1993-09-28 |
HZ
Hisashi Zaima
Overall (All Time): #3,833,912 of 4,157,543Top 95%
1
Patents All Time