Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10391205 | Polymer for medical device, medical device material and medical device prepared from the material, and monomer composition for polymer for use in production of medical device | Masaru Tanaka, Naoki Kobayashi, Asuka Sugawara | 2019-08-27 |
| 7851568 | Vinylpyrrolidone-based copolymer and a method for production thereof | Daisuke Imai, Keiko Izumi | 2010-12-14 |
| 7345103 | Hydraulic composition | Norihiro Wakao, Takashi Tomita | 2008-03-18 |
| 7214753 | N-vinyl amide polymer and production method thereof | Norihiro Wakao | 2007-05-08 |
| 6642333 | Vinylpyrrolidone (co)polymer | — | 2003-11-04 |
| 6498231 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Toshiaki Kuriyama, Tomiyasu Ueta, Akio Naka, Hideyuki Nishibayashi | 2002-12-24 |
| 6346600 | Vinylpyrrolidone polymer and its stabilization and preservation processes | Daijo Tomihisa, Toshiaki Kuriyama, Tomiyasu Ueta, Akio Naka, Hideyuki Nishibayashi | 2002-02-12 |
| 6100366 | Cyclic imino ether group containing polymer and production process therefor | Kazumi Fujioka | 2000-08-08 |