Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296510 | Method for treating the surface of a thin porous film material of tetrafluoroethylene resin | Katsuya Yamada, Koichi Okita, Shin-ichi Toyo-oka | 1994-03-22 |
| 5252626 | Method for treating the surface of a thin porous film material | Katsuya Yamada, Koichi Okita, Shin-ichi Toyo-oka | 1993-10-12 |
| 5219894 | Method for treating the surface of a thin porous film material | Katsuya Yamada, Koichi Okita, Shin-ichi Toyo-oka | 1993-06-15 |
| 5028597 | Antithrombogenic materials | Makoto Kodama, Tsukasa Sakai, Keishiro Tsuda, Koichi Okita, Masaharu Komamiya +1 more | 1991-07-02 |
| 4822361 | Tubular prosthesis having a composite structure | Koichi Okita, Katsuya Yamada, Kazuhiro Okabe, Tohru Kashiwagi | 1989-04-18 |
| 4734112 | Liquid membrane | Koichi Okita, Shinichi Toyooka, Katsuya Yamada | 1988-03-29 |
| 4705544 | Liquid membrane | Koichi Okita, Shinichi Toyooka, Katsuya Yamada | 1987-11-10 |
| 4671754 | Apparatus for manufacturing porous polytetrafluoroethylene material | Koichi Okita, Shinichi Toyooka, Katsuya Yamada | 1987-06-09 |
| 4496507 | Production of string-like polytetrafluoroethylene | Koichi Okita | 1985-01-29 |