Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6505661 | Pneumatic tire having wide groove having two longitudinal ribs, intermediate ribs and lateral ribs | Yoshiki Nakagawa | 2003-01-14 |
| 6499520 | Pneumatic tire with wide central groove | Yoshiki Nakagawa | 2002-12-31 |
| 6196289 | Run-flat tire | — | 2001-03-06 |
| 6142204 | Run-flat tire with tread reinforcing layer | Masanori Omoteda, Kenji Tagashira | 2000-11-07 |