Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1994-04-26
2000-11-21
Resan, Stevan A.
Stock material or miscellaneous articles
Composite
Of inorganic material
428693, 428900, 360120, G11B 5255
Patent
active
061500445
ABSTRACT:
In a metal-in-gap magnetic head, a pair of magnetic core halves made of ferrite are arranged to oppose to each other, and metallic magnetic films are applied to each of opposing surfaces of the pair of magnetic core halves. A hard glass layer and a chromium layer are applied to a gap plane of the magnetic head as a gap layer. A gap is formed so as to abut on the chromium layers between a pair of the gap layers. The hard glass layer includes borosilicate as a main component and it has Vickers hardness of the same as that of said metallic magnetic films or less and softening temperature of 550.degree. C. or higher. Thus, a magnetic head does not generate a spacing loss when a tape slides thereon.
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J.F. Dundovic, "Magnetic-Head Relapping Techniques", Project Notes/Engineering Briefs, Journal of the Audio Engineering Society, vol. 24, No. 8, May 1976, New York, pp. 656-659.
Ashida Akihiro
Hasegawa Hiroyuki
Sawai Eisuke
Takahashi Ken
Takeda Hiromi
Matsushita Electric - Industrial Co., Ltd.
Resan Stevan A.
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