发明授权
- 专利标题： Magnetic head
- 专利标题（中）： 磁头
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申请号： US818121申请日： 1997-03-14
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公开(公告)号： US5852536A公开(公告)日： 1998-12-22
- 发明人: Tohru Matsunaga , Naoyuki Kaneyama , Takehiko Saito , Masatoshi Hayakawa
- 申请人： Tohru Matsunaga , Naoyuki Kaneyama , Takehiko Saito , Masatoshi Hayakawa
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX8-057994 19960314; JPX8-333932 19961213
- 主分类号： G11B5/133
- IPC分类号： G11B5/133 ; G11B5/187 ; G11B5/193 ; G11B33/08
摘要：
Sliding noise characteristics can be considerably improved without degrading electromagnetic conversion characteristics and abrasion resistance characteristics in a recording/reproducing operation. A depth (H) of a contact width regulating groove (21) is set to be smaller than a contact width (W) of a magnetic recording medium sliding surface (a), and is set to a predetermined value of 25 .mu.m or more and 45 .mu.m or less. A depth (H) of the contact regulating groove is set to a predetermined value of 37.+-.12 .mu.m, the contact width (W) on the magnetic recording medium sliding surface (a) is set to a predetermined value of 55.+-.6 .mu.m, and a value (R) of a corner portion of the contact width regulating groove is set to a predetermined value of 16 .mu.m or less.
公开/授权文献
- US4183426A Vending machine with removable coin operated mechanism 公开/授权日：1980-01-15
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