Invention Grant
- Patent Title: Magnetic transfer master carrier and magnetic transfer method
- Patent Title (中): 磁传输主载体和磁转移方法
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Application No.: US12411751Application Date: 2009-03-26
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Publication No.: US07974028B2Publication Date: 2011-07-05
- Inventor: Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
- Applicant: Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2008-088759 20080328; JP2008-255075 20080930
- Main IPC: G11B5/86
- IPC: G11B5/86

Abstract:
A magnetic transfer master carrier of the present invention includes a base material having convex portions on its surface, the convex portions being provided corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer deposited at least on top surfaces of the convex portions, wherein when a magnetic field is applied to the magnetic transfer master carrier, the magnetic layer absorbs a magnetic flux so as to form a pattern of the magnetic field, wherein the magnetic layer includes at least two perpendicular magnetic anisotropic layers, and an antiferromagnetic coupling induction layer which is provided so as to be sandwiched in between two neighboring layers of all the perpendicular magnetic anisotropic layers, and to induce antiferromagnetic coupling therebetween.
Public/Granted literature
- US20090244748A1 MAGNETIC TRANSFER MASTER CARRIER AND MAGNETIC TRANSFER METHOD Public/Granted day:2009-10-01
Information query
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