Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836906 | Air-fuel ratio sensor | Tetsusyo Yamada, Nobuhiro Hayakawa | 1989-06-06 |
KY
Kazunori Yokota
Overall (1989): #89,330 of 140,708Top 65%
1
Patents 1989