Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8017101 | Precipitated calcium carbonate, method for producing the same and filler for loading paper using the same | Kazuhisa Shimono, Toru Kawazu, Tatsuo Takano | 2011-09-13 |
| 8012443 | Spherical calcium carbonate and method of producing the same | Kenshiro Makino | 2011-09-06 |