Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340481 | Membrane filtration type hollow fibers | Mashahiro Mishiro, Shigeyasu Ohashi, Yasuo Yokokawa | 1982-07-20 |
| 4234431 | Membrane filtration type hollow fibers and method for the preparation of same | Mashahiro Mishiro, Shigeyasu Ohashi, Yasuo Yokokawa | 1980-11-18 |