发明名称 SINGLE MAGNETIC POLE TYPE MAGNETIC HEAD
摘要 PURPOSE:To decrease magnetic resistance and to improve recording and reproducing efficiency by constituting the titled head in such a manner that the surface of the 2nd core half for oppositely contacting with a magnetic medium acts as a return pass part and that the return pass part is in proximity to a main magnetic pole. CONSTITUTION:This head is constituted of a magnetic core part 6, the 1st core half 4 which is joined with a non-magnetic core part 5 to constitute a surface S for facing the medium on one surface and has a winding hole 9 at the joint boundary thereof and the 2nd core half 21 consisting of a U-shaped magnetic material 22. The main magnetic pole 2 consisting of a thin soft magnetic film is held between the 1st and 2nd core halves 4 and 21 so as to be substantially spaced from the 2nd core half 21 on the surfaces of the winding holes 9 and 24 on the side S for facing the medium. The winding is formed around the main magnetic pole 2 through the holes 9 and 24. The surface S of such 2nd core half 21 acts as the return pass part R. Since the return pass part R is in proximity to the main magnetic pole 2, the length of the part where the magnetic medium acts as a magnetic path is shortened. The magnetic resistance is thereby made smaller and the recording and reproducing efficiency is made higher.
申请公布号 JPS6216209(A) 申请公布日期 1987.01.24
申请号 JP19850156524 申请日期 1985.07.16
申请人 SONY CORP 发明人 HAYAKAWA ATSUNORI;SHIMAMURA TOSHIKI
分类号 G11B5/127 主分类号 G11B5/127
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