Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229229 | Pellicle having reflection-preventing function | Shinji Sato, Kenichi Sekimoto, Katsuya Shibata | 1993-07-20 |
| 5212043 | Photoresist composition comprising a non-aromatic resin having no aromatic structures derived from units of an aliphatic cyclic hydrocarbon and units of maleic anhydride and/or maleimide and a photosensitive agent | Takashi Yamamoto, Masaaki Todoko, Kyoko Nagaoka, Kosaburo Matsumura | 1993-05-18 |
| 5204425 | Polyalicyclic polyacrylic acid ester derivatives | Kenichi Sekimoto, Noriaki Oshima, Yousuke Takahashi | 1993-04-20 |
| 5202217 | Solubilization-inhibitor and positive resist composition | Masaaki Todoko, Takashi Taniguchi, Shinji Sato, Katuya Shibata | 1993-04-13 |
| 5171785 | Film for pellicle | Takashi Yamamoto, Katsuya Shibata, Tatsuki Suzuki | 1992-12-15 |
| 5132059 | Process for producing a polyvinyl formal ultrafiltration membrane | Yosuke Takahashi | 1992-07-21 |
| 4983495 | Positive resist patterns | Yoshitaka Tsutsumi, Kousaburou Matsumura, Kyoko Nagaoka, Toshimitsu Yanagihara | 1991-01-08 |
| 4900420 | Process for preparing a highly selective fluorinated anion exchange membrane | Yasuhiro Kurauchi, Kiyohide Matsui, Kikuo Sugimoto | 1990-02-13 |
| 4822721 | A method of image-wise exposing and developing halogen-containing polyacrylate derivatives | Yoshitaka Tsutsumi, Hideo Shuyama, Kousaburou Matsumura, Kyoko Nakazawa | 1989-04-18 |
| 4765905 | Method for recovering acids from an aqueous solution of the acids and metal salts by means of a fluorinated anion exchange membrane | Sakae Kitamura, Yasuhiro Kurauchi | 1988-08-23 |
| 4752635 | Halogen-containing polyacrylate derivatives | Yoshitaka Tsutsumi, Hideo Shuyama, Kousaburou Matsumura, Kyoko Nakazawa | 1988-06-21 |
| 4693796 | Method for manufacturing cation exchange membrane | Takao Satoh, Mitsuo Kikuchi | 1987-09-15 |
| 4659744 | Fluorocarbon anion exchangers and processes for their preparation | Kiyohide Matsui, Yoshiyuki Kikuchi, Tamejiro Hiyama, Etsuko Tobita, Kiyosi Kondo +2 more | 1987-04-21 |
| 4622112 | Process for preparing chlorinated polyvinyl aromatic compounds | Hiroyuki Watanabe | 1986-11-11 |
| 4567206 | Fluorocarbon polymers and processes for their preparation | Kiyohide Matsui, Yoshiyuki Kikuchi, Tamejiro Hiyama, Etsuko Tobita, Kiyoshi Kondo +2 more | 1986-01-28 |
| 4537910 | Method of producing cation-exchange membrane having roughed surface | Michiharu Oogai, Kosuke Takeshige, Hideo Shuyama | 1985-08-27 |
| 4431504 | Cation-exchange membrane for electrolyzing alkali metal halide | Takao Satoh, Mitsuo Kikuchi | 1984-02-14 |
| 4367147 | Method of recovering characteristics of deteriorated cation exchange membrane | Shunichi Asami, Akihiko Shimizu | 1983-01-04 |
| 4316781 | Method for electrolyzing alkali metal halide | Takao Satoh, Mitsuo Kikuchi | 1982-02-23 |
| 4295944 | Electrolysis of aqueous solution of alkali metal chloride | Takao Satoh | 1981-10-20 |
| 4205134 | Carrier for liquid chromatography | Akihiko Shimizu, Yoshio Kato, Tsutomu Hashimoto | 1980-05-27 |
| 4200538 | Process for preparing cation-exchange membrane | Kenji Takahashi, Shunichi Asami, Akihiko Shimizu | 1980-04-29 |
| 4189361 | Electrolysis of sodium chloride | Takao Satoh, Akihiko Shimizu | 1980-02-19 |
| 4189540 | Process for producing cation exchange membrane by impregnating a diene monomer having carboxylic acid groups into a fluorinated membrane having cation exchange groups and polymerizing | Kenji Takahashi, Shunichi Asami, Akihiko Shimizu | 1980-02-19 |