Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007964 | Calcium carbonate, calcium carbonate pigment, process for preparing same, coating composition for information recording paper and information recording paper | Satoshi Kondo, Toshio Kaneguchi, Takashi Deguchi | 1991-04-16 |
| 4242251 | Composition comprising a thermoplastic resin and mineral filler particles coated with an ethylenically unsaturated organic acid, the ethylenic double bonds of which remain substantially unreacted; product resulting from causing said to react | Itsuho Aishima, Junji Seki, Koichi Matsumoto, Yonemasa Furusawa, Yuhachi Takahashi | 1980-12-30 |