Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7160957 | Process for reducing monomer content in N-vinyl compound polymers | Yasuko Inui | 2007-01-09 |
| 6864353 | Production process for ethylene oxide copolymer | Michiyuki Kono, Manabu Kikuta, Masahito Nishiura, Fumihide Tamura, Taketo Toba +4 more | 2005-03-08 |
| 6617420 | Process for reducing monomer content in N-vinyl compound polymers | Yasuko Inui | 2003-09-09 |
| 6498231 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Tomiyasu Ueta, Akio Naka, Hideyuki Nishibayashi, Yoshitomo Nakata | 2002-12-24 |
| 6391994 | Production process for vinylpyrrolidone polymer | Daijo Tomihisa, Nobuyuki Harada, Akio Naka, Yuuji Shimasaki, Hideyuki Nishibayashi | 2002-05-21 |
| 6346600 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Tomiyasu Ueta, Akio Naka, Hideyuki Nishibayashi, Yoshitomo Nakata | 2002-02-12 |
| 5747602 | Production process for making high molecular weight polydioxolane | Takashi Namba, Hiroya Kobayashi, Kenji Minami, Hiroshi Itoh, Masashi Yukitake | 1998-05-05 |