Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854555 | Diaphragm type air springs | Akira Higashidani, Hiroyuki Maeda | 1989-08-08 |
| 4191671 | Abrasion resistant rubber compositions | Nobuyuki Kataoka, Takuya Takahashi, Shiro Anzai | 1980-03-04 |