Metal working – Method of mechanical manufacture – Electrical device making
Patent
1987-10-13
1988-10-04
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
360121, 360123, G11B 542
Patent
active
047747552
ABSTRACT:
A magnetic head which comprises a pair of head chips each composed of a pair of plate-like magnetic cores superposed on and joined to each other with a spacer interposed therebetween and having a gap at the junction, a pair of base plates joined to the pair of head chips individually and positioned on opposite sides of and in parallel to a plane containing the gaps, each of the magnetic core having at one end thereof a head with a small width substantially equal to the width of tacks and an end portion of increased width opposite to the head, a shield member interposed between the head chips at the head portions, a stud portion provided on at least one of the pair of magnetic cores and projecting toward the other core, and a coil provided around the stud portion. A process for producing such magnetic heads wherein the pair of magnetic cores are positioned close to each other, and the gaps are accurately positioned on the same plane.
REFERENCES:
patent: 3412216 (1968-11-01), Rosado et al.
patent: 3613228 (1971-10-01), Cook et al.
patent: 3685144 (1972-08-01), Trimble
patent: 3700827 (1972-10-01), Nagao
patent: 3718776 (1973-02-01), Bate et al.
patent: 3829896 (1974-08-01), Brock et al.
patent: 4396967 (1983-08-01), Argumedo et al.
patent: 4622616 (1986-11-01), Isshiki
Kubota Kenji
Takahashi Kazuhiko
Taketa Kazuhiko
Yasuda Isao
Yoshikawa Hideki
Hall Carl E.
Sanyo Electric Co,. Ltd.
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