Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5743940 | Process for producing gas adsorbent | Takanobu Sugo, Kunio Fujiwara, Hideaki Sekiguchi, Toshiaki Fujii | 1998-04-28 |
| 5075342 | Process for producing an ion exchange membrane by grafting non ion-selective monomers onto a ion exchange | Isao Ishigaki, Takanobu Sugo | 1991-12-24 |
| 5071880 | Process for producing a bifunctional filter membrane having iminodiacetic acid groups | Takanobu Sugo, Kyoichi Saito | 1991-12-10 |
| 4980335 | Acidic gas adsorber having a metal phthalocyanine on an ion exchanger | Takanobu Sugo, Kunio Fijiwara, Hideaki Sekiguchi, Toshiaki Fujii | 1990-12-25 |
| 4897433 | Process for producing an anti-thrombogenic material by graft polymerization | Takanobu Sugo, Seiryo Tasaki, Tadayuki Onishi | 1990-01-30 |
| 4622366 | Uranium adsorbing material and process for preparing the same | Takanobu Sugo, Isao Ishigaki, Akio Katakai | 1986-11-11 |
| 4539277 | Ion exchange membrane and process for producing the same | Isao Ishigaki, Takanobu Sugo | 1985-09-03 |
| 4396727 | Cation exchange membrane and process for producing the same | Isao Ishigaki, Hiroyuki Harada | 1983-08-02 |
| 4384941 | Process for electrolyzing water | Isao Ishigaki, Hiroyuki Harada | 1983-05-24 |
| 4376021 | Process for producing a water-soluble vinyl polymer | Isao Ishigaki, Hironobu Fukuzaki, Shozo Shimbo, Kiyoaki Yoshikawa | 1983-03-08 |