Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6203912 | Electronic article having fluoropolymer thin film | Atsushi Watakabe, Jun-ichi Tayanagi, Masayuki Tamura | 2001-03-20 |
| 5965275 | Adhesive fluorine-containing polymer and laminate employing it | Eiichi Nishi, Kazutoshi Sugitani, Seitoku Kaya, Masayuki Saito | 1999-10-12 |
| 5948826 | Heterogeneous ion exchange membrane and process for its production | Ichiro Terada, Yoshiaki Higuchi, Kazuo Umemura | 1999-09-07 |
| 5759373 | Porous ion exchanger and method for producing deionized water | Ichiro Terada, Iku Saito, Ken Komatsu, Kazuo Umemura, Junjiro Iwamoto | 1998-06-02 |
| 5736610 | Adhesive fluorine-containing polymer and laminate employing it | Eiichi Nishi, Kazutoshi Sugitani, Seitoku Kaya, Masayuki Saito | 1998-04-07 |
| 5716504 | Cation exchange membrane for electrolysis and process for producing potassium hydroxide of high purity | Yoshihiko Saito, Tetsuji Shimohira | 1998-02-10 |
| 5494984 | Method for producing a fluorinated polymer | Atsushi Funaki, Teruo Takakura, Kazuo Kato, Kazuo Hamazaki | 1996-02-27 |
| 5401408 | Bipolar membrane | Kazuo Umemura, Tutomu Naganuma | 1995-03-28 |
| 5397445 | Method for producing an acid and/or alkali metal hydroxide | Kazuo Umemura, Tsutomu Naganuma | 1995-03-14 |
| 5300204 | Method for hydrogen ion-selective electrodialysis | Yoshio Sugaya, Misaki Tada | 1994-04-05 |
| 5300228 | Method for separating and recovering an acid | Yoshio Sugaya, Misaki Kanazawa | 1994-04-05 |
| 4983264 | Four layer cation exchange fluoropolymer membrane | Hiroaki Ito, Koji Suzuki, Ryoji Yamada | 1991-01-08 |
| 4969982 | Method for producing an alkali metal hydroxide and electrolytic cell useful for the method | Isamu Kaneko, Atsushi Watakabe | 1990-11-13 |
| 4814418 | Fluorosilicone polymer, processes for the production thereof and composition containing it | Seiji Shin-ya, Yutaka Furukawa | 1989-03-21 |
| 4610764 | Electrolytic cation exchange membrane | Tatsuro Asawa, Yoshio Sugaya | 1986-09-09 |
| 4604170 | Multi-layered diaphragm for electrolysis | Manabu Suhara, Yoshio Sugaya, Hirofumi Horie | 1986-08-05 |
| 4586992 | Process for producing potassium hydroxide | Hiroaki Ito, Koji Suzuki, Ryoji Yamada | 1986-05-06 |
| 4508603 | Fluorinated cation exchange membrane and use thereof in electrolysis of an alkali metal halide | Hiroshi Ukihashi, Tatsuro Asawa, Masaaki Yamabe | 1985-04-02 |
| 4486277 | Electrolytic cation exchange membrane | Manabu Suhara, Hiroshi Mori, Yoshihiko Saito | 1984-12-04 |
| 4389494 | Process for producing a membrane for electrolysis by forming removable thin layer upon electrode | Manabu Suhara, Tomoki Gunjima | 1983-06-21 |
| 4385150 | Organic solution of fluorinated copolymer having carboxylic acid groups | Yoshio Sugaya, Tatsuro Asawa | 1983-05-24 |
| 4341685 | Process for preparing organic dispersion of acid type fluorinated polymer | Yoshio Sugaya, Tatsuro Asawa | 1982-07-27 |
| 4340680 | Cation exchange membrane of fluorinated polymer for an electrolysis | Tatsuro Asawa, Masaaki Yamabe | 1982-07-20 |
| 4320205 | Process for producing fluorinated polymer having ion-exchange groups | Tatsuro Asawa, Masami Yamashita | 1982-03-16 |
| 4298699 | Process for producing fluorinated polymer having ion-exchange groups | Tatsuro Asawa, Masami Yamashita, Yoshio Sugaya | 1981-11-03 |