Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028597 | Antithrombogenic materials | Makoto Kodama, Tsukasa Sakai, Keishiro Tsuda, Shigeru Asako, Masaharu Komamiya +1 more | 1991-07-02 |
| 4832713 | Gas-selectively permeable membrane and method of forming said membrane | Katsuya Yamada | 1989-05-23 |
| 4822361 | Tubular prosthesis having a composite structure | Shigeru Asako, Katsuya Yamada, Kazuhiro Okabe, Tohru Kashiwagi | 1989-04-18 |
| 4734112 | Liquid membrane | Shinichi Toyooka, Shigeru Asako, Katsuya Yamada | 1988-03-29 |
| 4705544 | Liquid membrane | Shinichi Toyooka, Shigeru Asako, Katsuya Yamada | 1987-11-10 |
| 4671754 | Apparatus for manufacturing porous polytetrafluoroethylene material | Shinichi Toyooka, Shigeru Asako, Katsuya Yamada | 1987-06-09 |
| 4533369 | Gas-permselective composite membranes and process for the production thereof | — | 1985-08-06 |
| 4496507 | Production of string-like polytetrafluoroethylene | Shigeru Asako | 1985-01-29 |
| 4483901 | Selectively gas-permeable composite membrane and process for production thereof | Sigeru Asako | 1984-11-20 |
| 4277429 | Production of asymmetric porous film materials | — | 1981-07-07 |
| 4259209 | Catalyst for concentrating hydrogen isotopes and process for producing a support therefor | Ryohei Nakane, Shohei Isomura, Eiji Kamijo, Tatsuya Nishimoto | 1981-03-31 |
| 4250138 | Process for producing microporous tubes of polytetrafluoroethylene | — | 1981-02-10 |
| 4248924 | Asymmetric porous film materials and process for producing same | — | 1981-02-03 |
| 4238571 | Process for producing porous materials | Hiroshi Mano | 1980-12-09 |
| 4234535 | Process for producing porous polytetrafluoroethylene tubings | — | 1980-11-18 |
| 4230758 | Fluorine resin coated structure of aluminum or aluminum alloy | Shuzo Nagai, Seiji Watabe, Takao Ogino | 1980-10-28 |
| 4225547 | Extrusion process of polytetrafluoroethylene tubing materials and apparatus therefor | — | 1980-09-30 |
| 4208745 | Vascular prostheses composed of polytetrafluoroethylene and process for their production | — | 1980-06-24 |
| 4193138 | Composite structure vascular prostheses | — | 1980-03-18 |