Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1994-09-27
1996-04-02
Kiliman, L.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428336, 428329, 428331, 428328, 428446, 428447, 428694B, 428694BS, 428694BR, 428694BN, 428694BM, 428900, G11B 566, B32B 516
Patent
active
055039227
ABSTRACT:
In the magnetic recording medium, the spherical particles are added in the surface magnetic layer of the magnetic film having multilayer configuration (structure). And the spherical particles have a diameter in the range of from 0.5 to 1.5 times as large as the thickness of surface magnetic layer, and the amount of the spherical particles is in the range of from 0.1 parts to 1 part per 100 parts by weight of magnetic powder included in the surface magnetic layer. Fine studs are formed on the surface of the surface magnetic layer, and it results in both small surface roughness and low coefficient of friction.
REFERENCES:
patent: 4076890 (1978-02-01), Yamada et al.
patent: 4451532 (1984-05-01), Depalma et al.
patent: 4789591 (1988-12-01), Nakamura et al.
patent: 5035948 (1991-07-01), Saito et al.
patent: 5089317 (1992-02-01), Noguchi et al.
IEEE Trans. 1977, vol. MAG-13 No. 5.
Kisoda Akira
Midou Yuji
Sakamoto Kazunori
Shimasaki Yukihiro
Kiliman L.
Matsushita Electric - Industrial Co., Ltd.
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