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US 2023/0290376 A1Published application
Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device
AssigneeFUJIFILM Corporation
InventorsTakashi FUJIMOTO, Eiki OZAWA
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Abstract
The magnetic recording medium includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A magnetic tape cartridge and a magnetic recording and reproducing device include the magnetic recording medium. The ferromagnetic powder is an ε-iron oxide powder, and a ferromagnetic powder filling rate of a magnetic layer surface obtained by observing a surface of the magnetic layer with a scanning electron microscope is 0.40 or more and 0.60 or less.
Claims14
A magnetic recording medium comprising:
- a non-magnetic support;
- and
- a magnetic layer containing a ferromagnetic powder,
- wherein the ferromagnetic powder is an ε-iron oxide powder, and
- a ferromagnetic powder filling rate of a magnetic layer surface obtained by observing a surface of the magnetic layer with a scanning electron microscope is 0.40 or more and 0.60 or less.
2 more elements
Dependencies are inferred from the claim text.