Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10825593 | Ni—Zn—Cu ferrite particle, resin composition, and resin molding | Takashi Kojima, Kazutaka ISHII, Tetsuya Igarashi, Koji Aga | 2020-11-03 |
| 10775711 | Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer | Kazutaka ISHII, Koji Aga | 2020-09-15 |
| 10603614 | Ferrite particles having outer shell structure used for filtering medium | Koji Aga | 2020-03-31 |
| 10585369 | Ferrite particle having outer shell structure | Koji Aga | 2020-03-10 |
| 10564561 | Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer | Kazutaka ISHII, Koji Aga | 2020-02-18 |