Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5396942 | Pneumatic radial tires with core-sheath steel belt cords | Kiyoshi Ikehara | 1995-03-14 |
| 5311917 | Pneumatic radial tires with core-sheath steel belt cords | Kiyoshi Ikehara | 1994-05-17 |
| 5236029 | Heavy duty pneumatic radial tires with fatigue resistant steel carcass cords | Satoshi Nakashio | 1993-08-17 |
| 4966216 | Heavy duty radial tires with metallic carcass ply | Yujiro Umezawa, Toshio Sugawara | 1990-10-30 |
| 4715419 | Large-size pneumatic radial tire for use on rough road with belt having specified cord | Michitaka Sato, Hiroyuki Koseki, Tamotsu Matsunuma | 1987-12-29 |
| 4690191 | Radial tire with reinforcing steel cord | — | 1987-09-01 |
| 4488587 | Pneumatic radial tires | Yujiro Umezawa, Yoshio Suzuki, Teruo Miura | 1984-12-18 |