Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1997-08-27
1999-11-09
Kiliman, Leszek
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428334, 428694T, 428694TS, 428684TM, 428692, 428900, 427466, 427510, 427128, 427129, 427130, 427131, 430 39, G11B 566
Patent
active
059810394
ABSTRACT:
A magnetic recording medium in accordance with the present invention is constituted by a first magnetic film having a magnetic anisotropy in a first direction parallel to the film surface and a second magnetic film that is formed on the first magnetic film and that is made of an amorphous alloy film of a rare-earth metal and a transition metal having a magnetic anisotropy in a second direction that is parallel to the film surface, and different from the first direction. In the above-mentioned magnetic recording medium, the first and second magnetic films have magnetic anisotropies having directions parallel to their surfaces and different from each other. When a magnetic latent image is formed on the magnetic recording medium of this type, it is possible to reduce the height of serration in the serrate magnetization transition structure appearing in the border of magnetization inversion in the magnetic latent image. Consequently, it becomes possible to improve the resolution of the magnetic-latent-image recording, and also to provide magnetic latent images with high resolution and high magnetic attracting force to magnetic toner.
REFERENCES:
patent: 4395470 (1983-07-01), Saitoh
Yamagishi, et al. "An Analysis of Saw Toothed Transition of Magnetic Thin Film", Materials of Magnetic Recording Seminar, Electronic Information and Communication Society, MR 75-29, pp. 25-36 (partial trans), 1984.
S. Imamura, et al., "Recording and Developing Characteristics in Magnetography by Optical Writing", Journal of Electrophotography Society, vol. 24-4, pp. 21-20 (1985) (partial trans).
Isono Hitoshi
Van Kazuo
Conlin David G.
Kiliman Leszek
Neuner George W.
Sharp Kabushiki Kaisha
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