Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12145852 | Silica spherical particles for semiconductor sealing material | Katsumasa YAGI, Dota Saito, Mutsuhito TANAKA, Hiroyuki Deai | 2024-11-19 |
| 11274045 | Spherical crystalline silica particles and method for producing same | Yutaka Sato, Katsumasa YAGI, Mutsuhito TANAKA, Shozo Tokuda | 2022-03-15 |
| 10253219 | Spherical crystalline silica particles and method for producing same | Yutaka Sato, Katsumasa YAGI, Mutsuhito TANAKA, Shozo Tokuda | 2019-04-09 |