Invention Publication
- Patent Title: MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE
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Application No.: US18052406Application Date: 2022-11-03
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Publication No.: US20230154491A1Publication Date: 2023-05-18
- Inventor: Junya SAWADA , Noriko Oyanagi
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP 21181450 2021.11.05
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/708 ; G11B5/735

Abstract:
The magnetic recording medium includes a non-magnetic support; and a magnetic layer containing a ferromagnetic powder, in which the magnetic layer includes an abrasive, the abrasive is a carbide, an average primary particle diameter of the abrasive is 10 nm or more and 100 nm or less, and in an electron microscope image of a surface of the magnetic layer, assuming that a total area occupied by the abrasive is 100%, a ratio of an area occupied by the abrasive present in an aggregated state having a maximum Feret diameter of 0.2 µm or more is 50% or more.
Public/Granted literature
- US12159656B2 Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device Public/Granted day:2024-12-03
Information query
IPC分类: