Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421396 | Silica particles and method for producing the same | Yuka ZENITANI, Sakae TAKEUCHI, Koji Sasaki, Yoshifumi Eri | 2025-09-23 |
| 12287607 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method | Shimpei Takagi, Sakae TAKEUCHI, Yuka ZENITANI, Koji Sasaki, Yoshifumi Eri | 2025-04-29 |
| 12215033 | Silica particles comprising nitrogen element-containing compound containing molybdenum element | Yuka ZENITANI, Sakae TAKEUCHI, Koji Sasaki, Yoshifumi Eri | 2025-02-04 |