Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362677 | Method of producing ethylene-vinyl alcohol copolymer hollow fiber membranes | Shuzo Yamashita, Taku Tanaka, Akira Kubotsu, Syuji Kawai | 1982-12-07 |
| 4317729 | Ethylene-vinyl alcohol copolymer hollow fiber membranes and method of producing same | Shuzo Yamashita, Taku Tanaka, Akira Kubotsu, Syuji Kawai | 1982-03-02 |