Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7081484 | Anion exchange membrane, process for its production and solution treating apparatus | Hiroshi Toda, Yukio Matsumura, Hirohisa Kubota | 2006-07-25 |
| 6780893 | Anion exchanger and process for producing anion exchange membrane | Hisao Kawazoe | 2004-08-24 |
| 6632848 | Heterogeneous anion exchanger | — | 2003-10-14 |
| 6569301 | Cation exchange membrane selectively permeable to monovalent cations and method for its production | Motoo Fukui, Yoshiharu Aoki | 2003-05-27 |
| 6565725 | Method for producing deionized water | Yukio Matsumura, Hiroshi Toda | 2003-05-20 |
| 6471867 | Electro-regenerating type apparatus for producing deionized water | Yukio Matsumura, Hiroshi Toda | 2002-10-29 |
| 5889572 | Liquid crystal display device | Hiroyuki Takahashi, Takayuki Iura | 1999-03-30 |
| 5300204 | Method for hydrogen ion-selective electrodialysis | Misaki Tada, Haruhisa Miyake | 1994-04-05 |
| 5300228 | Method for separating and recovering an acid | Misaki Kanazawa, Haruhisa Miyake | 1994-04-05 |
| 5180750 | Anion exchanger | Ichiro Terada, Kiyonari Sanekata, Hirofumi Horie | 1993-01-19 |
| 5128378 | Cation exchanger | Josho Kashiwame, Ichiro Terada | 1992-07-07 |
| 5039382 | Method for producing an alkali metal hydroxide | Koji Suzuki, Atsushi Watakabe, Tetsugi Shimohira | 1991-08-13 |
| 4909810 | Vapor permselective membrane | Makoto Nakao, Hiroshi Mori, Hirofumi Horie, Hirokazu Wakabayashi | 1990-03-20 |
| 4610764 | Electrolytic cation exchange membrane | Tatsuro Asawa, Haruhisa Miyake | 1986-09-09 |
| 4604170 | Multi-layered diaphragm for electrolysis | Haruhisa Miyake, Manabu Suhara, Hirofumi Horie | 1986-08-05 |
| 4385150 | Organic solution of fluorinated copolymer having carboxylic acid groups | Haruhisa Miyake, Tatsuro Asawa | 1983-05-24 |
| 4341685 | Process for preparing organic dispersion of acid type fluorinated polymer | Haruhisa Miyake, Tatsuro Asawa | 1982-07-27 |
| 4298699 | Process for producing fluorinated polymer having ion-exchange groups | Tatsuro Asawa, Haruhisa Miyake, Masami Yamashita | 1981-11-03 |