Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873757 | Polyester polyol, composition for polyurethane, composition for polyurethane foam, polyurethane resin, and polyurethane foam | Atsushi Miyata, Tomoki Tsutsui, Shinsuke Matsumoto, Kanae Morishita | 2018-01-23 |
| 9382372 | Polyol, polyol composition, and flexible polyurethane foam using the same | Mikio Matsufuji, Atsushi Miyata, Shinsuke Matsumoto, Koichi Sano, Toru Hiraide | 2016-07-05 |
| 6410676 | Method for producing polyoxyalkylene polyol and derivatives thereof | Satoshi Yamasaki, Yasunori Hara, Fumio Yamazaki, Mikio Matsufuji, Ariko Nishikawa +5 more | 2002-06-25 |
| 6156864 | Preparation of flexible polyurethane foams | Kazuhiko Ohkubo, Tomoki Tsutsui, Yoshitsugu Sakaki, Ariko Nishikawa, Tsukuru Izukawa | 2000-12-05 |
| 5916994 | Polymer polyols and preparation thereof | Tsukuru Izukawa, Ariko Nishikawa | 1999-06-29 |
| 5777175 | Preparation of polyoxyalkylene polyols, polymer polyols and flexible polyurethane foams | Kazuhiko Ohkubo, Tomoki Tsutsui, Yoshitsugu Sakaki, Ariko Nishikawa, Tsukuru Izukawa +3 more | 1998-07-07 |
| 5416123 | Polyurethane foam prepared from high concentration-low viscosity polymer-polyol | Ariko Nishikawa, Tsukuru Izukawa, Kiyotsugu Asai | 1995-05-16 |
| 5324774 | Polymer-polyol, process for preparation thereof and uses thereof | Ariko Nishikawa, Tsukuru Izukawa, Kiyotsugu Asai | 1994-06-28 |