Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9343878 | Manufacturing method of main metal fitting for spark plug and manufacturing method of spark plug | Hajime Kawano | 2016-05-17 |
KK
Koji Kamikawa
Overall (All Time): #3,000,867 of 4,157,543Top 75%
1
Patents All Time