Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680002 | Multi-polarity type spark plug for use in an internal combustion engine | Iwao Kunitomo, Yoshihiro Matsubara | 1997-10-21 |
KA
Kozo Amano
Overall (1997): #117,268 of 185,788Top 65%
1
Patents 1997