发明授权
- 专利标题： Magnetic head device having increased dimensional accuracy and improved magnetic characteristics
- 专利标题（中）： 具有增加的尺寸精度和改善的磁特性的磁头装置
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申请号： US619020申请日： 1996-03-20
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公开(公告)号： US5731938A公开(公告)日： 1998-03-24
- 发明人: Naoto Sugawara , Seiichi Watanabe , Seiichi Handa
- 申请人： Naoto Sugawara , Seiichi Watanabe , Seiichi Handa
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-182507 19950719
- 主分类号： G11B5/60
- IPC分类号： G11B5/60 ; G11B5/10 ; G11B5/105 ; G11B5/127 ; G11B5/187 ; G11B5/23 ; G11B5/265 ; G11B5/48 ; G11B5/58
摘要：
A magnetic head device comprising: a magnetic circuit which includes a head core unit, a back core and a coil;the head core unit including a first core made from a magnetic material and a second core made from a magnetic material, and forming a magnetic gap between the first core and the second core; the back core made from a magnetic material and jointed to the first core and the second core so as to form back gaps; the coil arranged on the first core; a first holder which is bonded to the first core and the second core at two locations of the side of the magnetic gap and the side of the back gaps so as to hold the magnetic circuit; and a second holder which is bonded to the first core and the second core at the magnetic gap side so as to hold the magnetic circuit, and which is substantially of a square pillar.
公开/授权文献
- USRE34454E Copying apparatus 公开/授权日：1993-11-23