Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D499695 | Tread portion of an automobile tire | Akiyoshi Shimizu, Kazuo Uchida | 2004-12-14 |
| 6408911 | Studless pneumatic tire including block-shaped island portions each having sipes | Yuji Yamaguchi | 2002-06-25 |
| 5814169 | Pneumatic tire including sipes | Yuji Yamaguchi | 1998-09-29 |
| 5385189 | Pneumatic tire with paired sides in the tread | Namito Aoki, Yasufumi Ichiki | 1995-01-31 |