Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5879442 | Aqueous slurry of precipitated calcium carbonate and ground calcium carbonate in combination | Hiroyuki Nishiguchi, Kazuhisa Shimono | 1999-03-09 |
| 5230734 | Calcium-magnesium carbonate composite and method for the preparation thereof | Hideki Horiuchi, Fumihiko Kaneko, Tatsuo Takano | 1993-07-27 |