Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292495 | Porous particles of calcium carbonate and method for the preparation thereof | Takayuki Nakajima, Masao Kanoh, Yoshio Iwasaki | 1994-03-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292495 | Porous particles of calcium carbonate and method for the preparation thereof | Takayuki Nakajima, Masao Kanoh, Yoshio Iwasaki | 1994-03-08 |