Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591880 | Pneumatic tire including zig-zag circumferential fine grooves | Hiroyuki Matsumoto, Akiyoshi Shimizu | 2003-07-15 |
KM
Ken Masaoka
Overall (2003): #180,559 of 273,478Top 70%
1
Patents 2003