Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5108565 | Method for removing harmful gas from refuse combustion exhaust gas | Shoichi Sato, Okihiro Tokunaga, Yasushi Aoki, Shouichi Suda, Tsuneharu Miyachi +4 more | 1992-04-28 |
| 4407846 | Method of producing a hydrophilic membrane from a polyethylene base film | Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo | 1983-10-04 |
| 4379200 | Novel method of producing ion exchange membrane | Isao Ishigaki, Takanobu Sugo | 1983-04-05 |
| 4376794 | Process for production of separators for use in cells | Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo | 1983-03-15 |
| 4354907 | Radiation polymerization of cationic monomer in aqueous alcohol | Isao Ishigaki, Toshimi Okada, Shigeaki Washio | 1982-10-19 |
| 4322511 | Process of hydrolyzing fluorine-containing multi-component copolymers | Osamu Matsuda, Terutaka Watanabe, Yoneho Tabata | 1982-03-30 |
| 4294675 | Process for production of fluorine-containing multi-component copolymers | Osamu Matsuda, Terutaka Watanabe, Yoneho Tabata | 1981-10-13 |
| 4288467 | Method of producing a membrane of graft copolymer | Isao Ishigaki, Takanobu Sugo | 1981-09-08 |
| 4287272 | Cell separator and cell | Isao Ishigaki, Takanobu Sugo, Toshio Okada, Kazuo Murata, Shiro Tanso +1 more | 1981-09-01 |
| 4283442 | Method of producing a dimensionally stable battery separator | Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo | 1981-08-11 |
| 4273840 | Battery separator and method of producing the same | Isao Ishigaki, Takanobu Sugo, Kazuo Murata, Shiro Tanso, Keizi Senoo | 1981-06-16 |
| 4256856 | Components of uranium enrichment plant | Masayuki Ito, Giro Okamoto, Kenzo Shirayama | 1981-03-17 |