发明名称 MAGNETIC HEAD
摘要 PROBLEM TO BE SOLVED: To provide a vertical recording magnetic head capable of suppressing recording fringing, and substantially increasing the number of coil winding times. SOLUTION: This head is provided with a reading part H<SB>R</SB>, and a perpendicular recording magnetic head H1 formed above the reading part H<SB>R</SB>. In a first magnetic part 160 or a second magnetic part 161 constituting the perpendicular recording magnetic head H1, a first coil layer 108 is formed between one magnetic part positioned on the reading part H<SB>R</SB>, and the reading part H<SB>R</SB>, a second coil layer 114 is formed between one magnetic part and the other magnetic part, and these two coil layers 108 and 114 constitute a troidal coil layer 120 around one magnetic part. To cancel the magnetic flux of a leaked magnetic field based on a recording magnetic field generated only in the two coil layers 108 and 114 by a magnetic flux generated in the first coil layer 108, the magnetic flux of the leaked magnetic field is effectively canceled and thus recording fringing is effectively suppressed. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005122831(A) 申请公布日期 2005.05.12
申请号 JP20030357251 申请日期 2003.10.17
申请人 ALPS ELECTRIC CO LTD 发明人 WATANABE TOSHINORI
分类号 G11B5/127;G11B5/147;G11B5/31;G11B5/39;(IPC1-7):G11B5/31 主分类号 G11B5/127
代理机构 代理人
主权项
地址