Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694067 | Rubber composition for dust cover boots | Akio Maeda, Takeshi Chida | 1987-09-15 |
| 4689377 | Rubber vulcanizate from alkylene sulfide and epihalohydrin | Mitsuyoshi Aonuma, Akio Maeda | 1987-08-25 |