发明授权
- 专利标题： Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer
- 专利标题（中）： 垂直记录磁头，其单芯体与保护层中的主磁极结合
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申请号： US619034申请日： 1984-06-11
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公开(公告)号： US4638391A公开(公告)日： 1987-01-20
- 发明人: Takashi Hatanai , Keishi Nakashima , Koichi Mukasa
- 申请人： Takashi Hatanai , Keishi Nakashima , Koichi Mukasa
- 申请人地址： JPX
- 专利权人： Alps Electric Co., Ltd.
- 当前专利权人： Alps Electric Co., Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX58-101747 19830906; JPX58-101748 19830906; JPX58-103540 19831106
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/12 ; G11B5/22
摘要：
A vertical recording magnetic head of a main pole magnetizing type is made of a magnetic core having a central leg and two side legs, while an electromagnetic coil is supported around the central leg for exciting the same. A non-magnetic member is secured to the magnetic core so as to cover the central leg and the two side legs, and a magnetic thin layer, which is operable as the main pole, is provided in the non-magnetic member at a position overlying the central leg of the magnetic core such that the thin layer extends vertically to a recording medium moved in contact with the non-magnetic member.
公开/授权文献
- US5707179A Method and apparaatus for curing concrete 公开/授权日：1998-01-13
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