Invention Grant
- Patent Title: Support for magnetic recording medium, and magnetic recording medium
- Patent Title (中): 支持磁记录介质和磁记录介质
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Application No.: US11992388Application Date: 2006-09-21
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Publication No.: US07879471B2Publication Date: 2011-02-01
- Inventor: Masato Horie , Makoto Sato , Takuji Higashioji , Yukari Nakamori , Hiroaki Watanabe
- Applicant: Masato Horie , Makoto Sato , Takuji Higashioji , Yukari Nakamori , Hiroaki Watanabe
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Kubovcik & Kubovcik
- Priority: JP2005-275124 20050922
- International Application: PCT/JP2006/318706 WO 20060921
- International Announcement: WO2007/034857 WO 20070329
- Main IPC: G11B5/73
- IPC: G11B5/73 ; G11B5/78 ; C23C30/00
Abstract:
A magnetic recording medium substrate has a polyester film having metallic oxide-containing layers (layers M) formed on both the surfaces, one layer on each surface, the layers M having a thickness of 50 to 200 nm each, characterized in that the magnetic recording medium substrate has a total light transmittance of 0 to 75% and a surface resistivity of 1×102 to 1×1013Ω on each surface.
Public/Granted literature
- US20090297888A1 Support for Magnetic Recording Medium, and Magnetic Recording Medium Public/Granted day:2009-12-03
Information query
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