Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815971 | Heavy calcium carbonate, production method therefor, and resin composition containing said calcium carbonate | Shoji Ehara, Hisakazu Hojo | 2017-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815971 | Heavy calcium carbonate, production method therefor, and resin composition containing said calcium carbonate | Shoji Ehara, Hisakazu Hojo | 2017-11-14 |