Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7732527 | Water-soluble polymers reduced in molecular weight, process for production thereof and usage thereof | — | 2010-06-08 |
| 6669815 | Sheet surface treating agent and ink-jet printing paper | Toshiaki Sugiyama, Osamu Kamada | 2003-12-30 |