Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4185074 | Catalytic converter with a catalyst bed supporter | Takayuki Yamazaki, Hajime Kawasaki | 1980-01-22 |
TI
Takahisa Izumi
Overall (All Time): #4,104,890 of 4,157,543Top 100%
1
Patents All Time