Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9018278 | Surface treated calcium carbonate filler for resin and resin composition containing the filler | Hidemitsu Kasahara, Kouhei Sako, Hisakazu Hojo | 2015-04-28 |
| 7977410 | Fine pore formation agent for porous resin film and composition containing the same for porous resin film | Seiya Shimizu, Hidemitsu Kasahara, Hisakazu Hojo | 2011-07-12 |