Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6410676 | Method for producing polyoxyalkylene polyol and derivatives thereof | Satoshi Yamasaki, Yasunori Hara, Tamotsu Kunihiro, Fumio Yamazaki, Mikio Matsufuji +5 more | 2002-06-25 |
| 6207794 | Polyoxyalkylene polyols, derivatives thereof, and process for producing the polyoxyalkylene polyols | Satoshi Yamasaki, Yasunori Hara, Satoshi Tamura, Fumio Yamazaki, Hitoshi Watanabe +6 more | 2001-03-27 |
| 6156864 | Preparation of flexible polyurethane foams | Kazuhiko Ohkubo, Tomoki Tsutsui, Yoshitsugu Sakaki, Tamotsu Kunihiro, Tsukuru Izukawa | 2000-12-05 |
| 6117937 | Polymer polyol and flame retardant polyurethane resin and foam prepared therefrom | Shinsuke Matsumoto, Tsukuru Izukawa, Masahiro Isobe, Kazuhiko Okubo | 2000-09-12 |
| 5916994 | Polymer polyols and preparation thereof | Tsukuru Izukawa, Tamotsu Kunihiro | 1999-06-29 |
| 5777175 | Preparation of polyoxyalkylene polyols, polymer polyols and flexible polyurethane foams | Kazuhiko Ohkubo, Tomoki Tsutsui, Yoshitsugu Sakaki, Tamotsu Kunihiro, Tsukuru Izukawa +3 more | 1998-07-07 |
| 5416123 | Polyurethane foam prepared from high concentration-low viscosity polymer-polyol | Tamotsu Kunihiro, Tsukuru Izukawa, Kiyotsugu Asai | 1995-05-16 |
| 5324774 | Polymer-polyol, process for preparation thereof and uses thereof | Tamotsu Kunihiro, Tsukuru Izukawa, Kiyotsugu Asai | 1994-06-28 |