Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4781834 | Membrane separation apparatus | Masaaki Sekino, Katsuhisa Numata | 1988-11-01 |
| 4623460 | Fluid separation element | Hideshi Kuzumoto, Akira Uejima | 1986-11-18 |
| 4451369 | Fluid separation apparatus | Masaaki Sekino, Yoshiyuki Fujita | 1984-05-29 |
| 4352736 | Wound flattened hollow fiber assembly having plural spaced core sections | Hiroshi Matsumoto, Chikara Kawamura | 1982-10-05 |