Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352679 | Ultrafine particle silicon dioxide and process for producing the same | Takeyoshi Shibasaki, Hirokuni Shirono | 2002-03-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352679 | Ultrafine particle silicon dioxide and process for producing the same | Takeyoshi Shibasaki, Hirokuni Shirono | 2002-03-05 |