Invention Grant
- Patent Title: Magnetic disc apparatus with head having magneto-resistance effect
- Patent Title (中): 具有磁头效应的磁头磁盘装置
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Application No.: US400457Application Date: 1995-03-07
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Publication No.: US5726838APublication Date: 1998-03-10
- Inventor: Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Akira Kumagai , Moriaki Fuyama , Shinji Narishige
- Applicant: Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Akira Kumagai , Moriaki Fuyama , Shinji Narishige
- Applicant Address: JPX Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JPX Tokyo
- Priority: JPX3-237842 19910918; JPX4-059895 19920217
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/012 ; G11B5/31
Abstract:
A magnetic disc apparatus capable of noiseless, high-output reproduction is disclosed. A magnetic head including a magnetic domain control structure having an antiferromagnetic film for applying a longitudinally biasing magnetic field to a magneto-sensitive portion of a magneto-resistance effect film, and a magnetic film smaller in spontaneous magnetization than the magneto-resistance effect film, which magnetic film is interposed between the magneto-resistance effect film and the antiferromagnetic film. A magnetic disc apparatus is thus realized which is high in recording density and usable in stable manner within the operating temperature range.
Public/Granted literature
- US5037451A Manufacture of abrasive products Public/Granted day:1991-08-06
Information query
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