Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340480 | Polysulfone-based hollow fiber membrane and process for manufacturing the same | Ichiro Kawata, Hiroyuki Akasu, Kensaku Komatsu | 1994-08-23 |
| 4938778 | Composite hollow fiber type separation membranes processes for the preparation thereof and their use | Shuzo Ohyabu, Syuji Kawai, Takao Migaki | 1990-07-03 |
| 4874522 | Polysulfone hollow fiber membrane and process for making the same | Akio Ohmory, Akinori Sueoka, Ichiro Kawata, Hiroyuki Akasu | 1989-10-17 |
| 4664669 | Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use | Shuzo Ohyabu, Syuji Kawai, Takao Migaki | 1987-05-12 |
| 4547289 | Filtration apparatus using hollow fiber membrane | Yoshihiro Okano, Akio Ohmory | 1985-10-15 |
| 4325915 | Bulk polymerization reactor | Hiroshi Sato, Akira Asada | 1982-04-20 |
| 4279752 | Polyvinyl alcohol semi-permeable membrane and method for producing same | Akinori Sueoka, Akio Ohmori, Syuji Kawai, Minoru Ueda | 1981-07-21 |