Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120521 | Method of producing colored precipitated calcium carbonate | Takashi Sakaguchi, Akira Yokoi, Yoshiki Saitoh | 1992-06-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120521 | Method of producing colored precipitated calcium carbonate | Takashi Sakaguchi, Akira Yokoi, Yoshiki Saitoh | 1992-06-09 |