Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944852 | Method for purifying a dipeptide ester | Michihiro Akazawa, Tsuneo Harada, Kiyotaka Oyama, Akira Tokuda | 1990-07-31 |
| 4909913 | Method for recovering a metal | Kenichi Fukuda, Takashi Mori, Tetsuya Suematsu | 1990-03-20 |
| 4900420 | Process for preparing a highly selective fluorinated anion exchange membrane | Toru Seita, Kiyohide Matsui, Kikuo Sugimoto | 1990-02-13 |
| 4877498 | Method for producing a metal salt by electrolysis | Kenichi Fukuda, Takashi Mori, Masaharu Doi, Tetsuya Suematsu | 1989-10-31 |
| 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, Toru Seita | 1988-08-23 |
| 4707234 | Method for separating an acid and an alkali from an aqueous solution of a salt | Takashi Mori, Kenichi Fukuda | 1987-11-17 |