Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890996 | Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same | Shinji Shimosato | 2005-05-10 |
| 6294615 | Copolymer, cationic high molecular weight flocculating agent comprising the copolymer, and process for producing the copolymer | Hiroshi Inoue | 2001-09-25 |
| 5219967 | Acrylic copolymer rubber | Yasumichi Miyagawa, Mitsuhiro Kamezawa, Takashi Yamamoto, Shinji Ozoe | 1993-06-15 |