Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909942 | Process for removing pyrogens | Tadashi Sato, Taizo Watanabe, Satoshi Minobe, Takashi Nishimura, Masahiro Kagotani +2 more | 1990-03-20 |
| 4895685 | Crosslinked composite membrane and process for producing the same | Hajime Komada, Hiroki Karakane | 1990-01-23 |
| 4824573 | Crosslinked composite membrane and process for producing the same | Hajime Komada, Hiroki Karakane | 1989-04-25 |
| 4292417 | Semipermeable membrane | Kiyoshi Ishii, Ryoshu Suzuki, Hitoshi Tsugaya | 1981-09-29 |
| 4279846 | Process for preparing semipermeable membrane having selective permeability | Kiyoshi Ishii, Hitoshi Tsugaya | 1981-07-21 |
| 4200726 | Semipermeable membrane of phenoxy resin containing sulfuric acid groups or salts thereof | Kiyoshi Ishii, Ryoshu Suzuki, Hitoshi Tsugaya | 1980-04-29 |