Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5176765 | Pneumatic tire having outer tread layer of foam rubber | Kojiro Yamaguchi | 1993-01-05 |
| 4915150 | Pneumatic tires with round and square shoulders | Akira Kurima, Yuji Tateo, Nobuyuki Kasahara | 1990-04-10 |
| 4842682 | Heavy duty low-section pneumatic radial tire and a process for manufacturing the same | Norio Iwata, Masao Nakamura | 1989-06-27 |
| 4702293 | Heavy-duty low-section pneumatic radial tire | Norio Iwata, Masao Nakamura | 1987-10-27 |
| 4527606 | Pneumatic radial tires for passenger cars having low rolling resistance and excellent slipping resistance | Toshio Kita, Nobumasa Ikeda, Yoshiharu Goto, Hiroshi Hayakawa, Minoru Togashi | 1985-07-09 |
| 4373566 | Pneumatic radial tire having a reduced rolling resistance | Hiroshi Hirakawa, Akio Sato, Nobumasa Ikeda | 1983-02-15 |
| 4349061 | Pneumatic radial tires for passenger cars having a low rolling resistance | Hiroshi Hirakawa, Akio Sato, Nobumasa Ikeda | 1982-09-14 |