Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881403 | Spark plug with pressure sensor | Junichi Kagawa, Yoshiaki Saiki | 1989-11-21 |
KA
Kozo Amano
Overall (1989): #86,494 of 140,708Top 65%
1
Patents 1989