Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595254 | Pneumatic tire including zig-zag main grooves | Hirokatsu Maruyama | 2003-07-22 |
| 6564841 | Pneumatic tire having zig-zag circumferential main grooves | Yukio Tozawa | 2003-05-20 |