Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6068825 | Method for the preparation of a high-quality powder of amorphous silicic acid | — | 2000-05-30 |
| 5750038 | Method for the preparation of acid-resistant calcium silicate | Hideo Yamada, Eiichi Abe, Kozo Inoue | 1998-05-12 |