Invention Grant
- Patent Title: Magnetic tape
-
Application No.: US15443026Application Date: 2017-02-27
-
Publication No.: US10861491B2Publication Date: 2020-12-08
- Inventor: Masahito Oyanagi , Norihito Kasada , Takuto Kurokawa
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2016-037569 20160229
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/708 ; G11B5/702 ; G11B5/71 ; G11B5/73 ; G11B5/733 ; G11B5/735 ; G11B5/78

Abstract:
The magnetic tape has a magnetic layer containing ferromagnetic powder, abrasive, and binder on a nonmagnetic support, wherein the centerline average surface roughness Ra measured on the surface of the magnetic layer is less than or equal to 1.8 nm, the contact angle for 1-bromonaphthalene that is measured on the surface of the magnetic layer falls within a range of 45.0° to 60.0°, and the coefficient of friction that is measured on the base portion of the surface of the magnetic layer is less than or equal to 0.35.
Public/Granted literature
- US20170249963A1 MAGNETIC TAPE Public/Granted day:2017-08-31
Information query
IPC分类: