Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263728 | Method of analyzing frictional energy of rolling tire | Hiroaki Sugimoto | 2001-07-24 |
| 6000452 | Pneumatic radial tire for heavy load with rubber filler comprising hard rubber filler and soft rubber filler | Hiroaki Sugimoto | 1999-12-14 |
| 5647925 | Pneumatic tire for heavy-loaded vehicles, with resistance to river wear | Hiroaki Sugimoto | 1997-07-15 |