Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325639 | Colloidal silica and production method therefor | Hideki Otsuki, Yoshiki Michiwaki, Toshiki Chiba | 2025-06-10 |
| 12306578 | Hydrophobic silica powder and toner resin particle | Kazui Omokawa, Yasuhiro Fuma | 2025-05-20 |
| 12286356 | Colloidal silica and method for producing same | Hideki Otsuki, Hiroaki Yamashita, Toshiki Chiba | 2025-04-29 |