Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7910672 | Powder of a vinylpyrrolidone polymer and a process for production thereof | Kazuhiro Okamura, Keiji Watanabe, Keiichi Fujise | 2011-03-22 |
| 7906595 | Hydrophilic graft polymer | Takahiro Tsumori | 2011-03-15 |