Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7735534 | Heavy duty pneumatic tire with belt hard rubber layer | Yukihide Oya, Hideaki Yoshikawa | 2010-06-15 |
| 7677287 | Heavy load radial tire | Yukihide Ouya | 2010-03-16 |
| 7575031 | Heavy duty radial tire with belt reinforcing rubber layer having axially inner and outer rubber portions | Yukihide Ohya | 2009-08-18 |