Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4514367 | Method for separating rare earth metals | Tadao Asami, Tetsuro Suehiro, Hisao Ichijo, Aizo Yamauchi, Shigeo Ogawa +1 more | 1985-04-30 |
| 4307151 | Enzyme-active fibrous materials and method for preparing same | Aizo Yamauchi, Tetsuro Suehiro, Mitsuo Suzuki, Masahiko Takashio | 1981-12-22 |
| 4264676 | Process for preparing superfine ion-exchange fibers | Masahiko Takashio, Akihisa Shirasaka, Tadayoshi Utsumi | 1981-04-28 |