Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603244 | Spark plug and method of producing spark plug | Tomoharu Suzuki, Kenichi Kumagai | 2003-08-05 |
YS
Yoshihisa Sugiyama
Overall (2003): #85,619 of 273,478Top 35%
1
Patents 2003