Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919694 | Selective gas permeation membranes and method of manufacturing them | Yasuo Hata | 1990-04-24 |
| 4749775 | Novel polyester polymers | Tetsuro Takeya, Tatsuya Tomioka, Shigeru Murakami | 1988-06-07 |