Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4530809 | Process for making microporous polyethylene hollow fibers | Takashi Yamamoto, Osamu Fukunaga, Hisayoshi Yamamori | 1985-07-23 |
| 4401567 | Microporous polyethylene hollow fibers | Takashi Yamamoto, Osamu Fukunaga, Hisayoshi Yamamori | 1983-08-30 |
| 4268279 | Gas transfer process with hollow fiber membrane | Takashi Yamamoto, Kensuke Kamada | 1981-05-19 |