Invention Grant
- Patent Title: Magnetic head for magneto-optical recording device
- Patent Title (中): 磁光记录装置磁头
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Application No.: US662669Application Date: 1991-02-28
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Publication No.: US5239425APublication Date: 1993-08-24
- Inventor: Toshio Kazama
- Applicant: Toshio Kazama
- Applicant Address: JPX Tokyo
- Assignee: Alps Electric Co., Ltd.
- Current Assignee: Alps Electric Co., Ltd.
- Current Assignee Address: JPX Tokyo
- Priority: JPX2-48501 19900228; JPX2-48502 19900228
- Main IPC: G11B5/00
- IPC: G11B5/00 ; G11B5/127 ; G11B5/187 ; G11B11/105
Abstract:
A magnetic head for a magneto-optical recording device for magnetically recording information onto a magnetic recording medium under the condition where the magnetic recording medium is heated by irradiation of a laser beam. A leakage magnetic field is effectively suppressed by a skin effect, and a magnetic field due to an eddy current is effectively summed up with a magnetic field generated from the core end, thereby increasing an intensity of a total magnetic field to be applied to the magnetic recording medium. Further, a distribution of the magnetic field intensity at the core end can be easily adjusted to stably and widely apply the magnetic field to the magnetic recording medium.
Public/Granted literature
- US5791461A Holder for card for use in automatic gate entry Public/Granted day:1998-08-11
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