Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395083 | Method for producing a cement admixture, concrete and fluorine-containing oxyalkylene compounds | Genichirou Enna, Yoshihiro Ohtsuka | 2002-05-28 |
| 6340779 | Cement admixture, concrete, and process for producing fluorooxyalylene compounds | Genichirou Enna, Yoshihiro Ohtsuka | 2002-01-22 |
| 6313060 | Catalyst for ring-opening polymerization of alkylene oxide, method for preparation thereof and use thereof | Kayoko Sugiyama, Akio Horie, Hiroshi Wada | 2001-11-06 |