Metal working – Method of mechanical manufacture – Electrical device making
Patent
1992-04-15
1994-01-11
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
360121, 360125, G11B 542
Patent
active
052769593
ABSTRACT:
A magnetic head includes two substrates which are provided with magnetic cores of magnetic film on their surface and are bonded on a plane so that a magnetic gap is defined between the magnetic cores, an edge part of the magnetic cores with the magnetic gap facing to a track of a recording medium being thinned from opposite sides thereof, and the magnetic cores in any other part being thicker than the edge part. In a gap facing plane where a pair of the magnetic cores join together, the magnetic cores are registered with each other so that they can be opposed to each other in a larger width in the back gap than in the front gap. As a result, even if a tolerance of a process in manufacturing is considerably loosened, a magnetic head with high core efficiency can be obtained with a high yield.
REFERENCES:
English Abstract corresponding to Japanese Publication No. 3-40207, dated Feb. 21, 1991.
English Abstract corresponding to Japanese Publication No. 3-144904, dated Jun. 20, 1991.
English Abstract corresponding to Japanese Publication No. 2-40117, dated Feb. 8, 1990.
English Abstract corresponding to Japanese Publication No. 2-108208, dated Apr. 20, 1990.
English Abstract corresponding to Japanese Publication No. 2-128309, dated May 16, 1990.
English Abstract corresponding to Japan Publication No. 64-33709, dated Feb. 3, 1989.
English Abstract corresponding to Japanese Pubication No. 62-146411, dated Jun. 30, 1987.
English Abstract corresponding to Japanese Publication No. 62-170007, dated Jul. 27, 1987.
English Abstract corresponding to Japanese Pubication No. 1-113909, dated May 2, 1989.
English Abstract corresponding to Japanese Publication No. 1-211309, dated Aug. 24, 1989.
English Abstract corresponding to Japanese Publication No. 1-235011, dated Sep. 20, 1990.
Conlin David G.
Hall Carl E.
Neuner George W.
Sharp Kabushiki Kaisha
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