发明名称 |
Magnetic head |
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 (51a) of the contact width regulating groove is set to a predetermined value of 16 mu m or less. |
申请公布号 |
EP0795852(A3) |
申请公布日期 |
1999.04.07 |
申请号 |
EP19970104310 |
申请日期 |
1997.03.13 |
申请人 |
SONY CORPORATION |
发明人 |
MATSUNAGA, TORU;KANEYAMA, NAOYUKI;SAITO, TAKEHIKO;HAYAKAWA, MASATOSHI |
分类号 |
G11B5/133;G11B5/187;G11B5/193;G11B33/08 |
主分类号 |
G11B5/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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