Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7435452 | Surface-treated plastic article and method of surface treatment | Naoki Shimoyama, Mitsuru Yokota | 2008-10-14 |
| 6689480 | Surface-treated plastic article and method of surface treatment | Naoki Shimoyama, Mitsuru Yokota | 2004-02-10 |
| 5324538 | Process for producing composite semipermeable membrane employing a polyfunctional amine solution and high flash point - solvent | Seriya Takahashi, Yoshishige Fujii | 1994-06-28 |
| 5259950 | Composite membrane | Kuniyasu Shiro, Yoshio Himeshima, Shinichi Yamada, Tetsuo Watanabe, Masaru Kurihara | 1993-11-09 |
| 5178766 | Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same | Toshihiro Ikeda, Yukio Nakagawa, Masaru Kurihara | 1993-01-12 |
| 5143763 | Oxygen scavenger | Shinichi Yamada, Isamu Sakuma, Yoshio Himeshima, Takao Aoki, Akira Shirakura | 1992-09-01 |
| 5112487 | Porous membrane and production process thereof | Yoshio Himeshima, Hideaki Tanisugi, Tetsuo Watanabe, Masaru Kurihara | 1992-05-12 |
| 5051178 | Process of producing composite semipermeable membrane | Hideo Fujimaki, Toshihiro Ikeda | 1991-09-24 |
| 4857363 | Process for preparation of semipermeable composite membrane | Tatsuo Sasaki, Hideo Fujimaki, Masaru Kurihara | 1989-08-15 |
| 4761234 | Interfacially synthesized reverse osmosis membrane | Yoshio Himeshima, Masaru Kurihara | 1988-08-02 |
| 4758343 | Interfacially synthesized reverse osmosis membrane | Tatsuo Sasaki, Hideo Fujimaki, Masaru Kurihara | 1988-07-19 |
| 4559139 | High performance semipermeable composite membrane and process for producing the same | Masaru Kurihara | 1985-12-17 |
| 4478717 | Semipermeable membrane treated with modified vinyl polymer | Masaru Kurihara, Noriho Harumiya | 1984-10-23 |
| 4387024 | High performance semipermeable composite membrane and process for producing the same | Masaru Kurihara, Kiyoshi Okada | 1983-06-07 |
| 4305824 | Cellulose derivative reverse osmosis membrane | Masaru Kurihara | 1981-12-15 |
| 4239545 | Cellulose derivative reverse osmosis membrane and casting solution and additive for preparing the same | Masaru Kurihara | 1980-12-16 |