Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10301183 | Silica particle dispersion and production method of the same | Miki Egami, Mitsuaki Kumazawa, Ryo Muraguchi, Toshiharu Hirai | 2019-05-28 |
| 10190023 | Silica-based polishing particle and abrasive | Mitsuaki Kumazawa, Miki Egami, Ryo Muraguchi, Toshiharu Hirai | 2019-01-29 |
| 10184069 | Silica-based polishing particle and abrasive | Mitsuaki Kumazawa, Miki Egami, Ryo Muraguchi, Toshiharu Hirai | 2019-01-22 |