Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8551292 | Methods for determining the degree of deposition of contaminants | Shisei Goto, Kosuke Okamoto | 2013-10-08 |
| 8349135 | Papermaking additive and filled paper | Kazunari Sakai, Tomohiko Nakata, Yoshiharu Hashiguchi, Takashi Yamaguchi, Masaki Ito | 2013-01-08 |
| 8241462 | Papermaking internal sizing agent and use thereof | Kazunari Sakai, Takahiro Fujiwara, Kazushige Inaoka, Takashi Yamaguchi, Masaki Ito | 2012-08-14 |