Invention Grant
- Patent Title: Magnetic tape having characterized magnetic layer and magnetic tape device
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Application No.: US15614876Application Date: 2017-06-06
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Publication No.: US10431248B2Publication Date: 2019-10-01
- Inventor: Norihito Kasada , Tetsuya Kaneko , Eiki Ozawa
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2016-116261 20160610
- Main IPC: G11B5/71
- IPC: G11B5/71 ; G11B5/78 ; G11B5/008 ; G11B5/584
Abstract:
A magnetic tape includes a non-magnetic layer including non-magnetic powder and a binder on a non-magnetic support; and a magnetic layer including ferromagnetic powder and a binder on the non-magnetic layer. The magnetic layer includes a timing-based servo pattern. The center line average surface roughness Ra measured regarding the surface of the magnetic layer is less than or equal to 1.8 nm. One or more components selected from a fatty acid and a fatty acid amide are included in at least the magnetic layer, and the C—H derived C concentration calculated from the C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is greater than or equal to 45 atom %.
Public/Granted literature
- US20170358318A1 MAGNETIC TAPE AND MAGNETIC TAPE DEVICE Public/Granted day:2017-12-14
Information query
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