Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11488627 | Ferromagnetic powder for magnetic recording and magnetic recording medium | Kenji Naoi | 2022-11-01 |
| 11459244 | Particles of β-iron oxyhydroxide-based compound, manufacturing method of the same, manufacturing method of particles of ϵ-iron oxide-based compound, and manufacturing method of magnetic recording medium | Kenji Naoi, Takashi Fujimoto | 2022-10-04 |
| 11348711 | Core-shell particle, fired product of core-shell particle, manufacturing method of core-shell particle, epsilon type iron oxide-based compound particle, manufacturing method of epsilon type iron oxide-based compound particle, magnetic recording medium, and manufacturing method of magnetic recording medium | Kenji Naoi, Takashi Fujimoto | 2022-05-31 |
| 11315595 | Recording method, recording device, reproduction method, reproduction device, and high-speed response element | Shin-ichi Ohkoshi, Makoto Nakajima, Hiroaki Doshita | 2022-04-26 |
| 11244701 | Hexagonal strontium ferrite powder for magnetic recording and magnetic recording medium | Kenji Naoi | 2022-02-08 |
| 11222661 | Hexagonal strontium ferrite powder, magnetic recording medium, and magnetic recording and reproducing apparatus | Kenji Naoi | 2022-01-11 |