Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342193 | Amorphous silica particles having a double structure, process for producing the same and use | Masanori Tanaka | 2002-01-29 |
| 6159277 | Amorphous silica particles having a double structure, process for producing the same and use | Masanori Tanaka | 2000-12-12 |
| 5780562 | Olefin polymerization catalyst and polyolefin | Hiroyuki Shimizu, Akira Sano, Kazuo Matsuura | 1998-07-14 |