Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1992-07-20
1996-02-20
Kilman, L.
Stock material or miscellaneous articles
Composite
Of inorganic material
428694T, 428900, 427128, 427129, 427130, 427131, 427132, 360119, G11B 566, G11B 523, B05D 512
Patent
active
054927749
ABSTRACT:
A perpendicular magnetic recording medium having a magnetic layer comprised of a metal magnetic thin film on a nonmagnetic support. The half-value width of the switching field distribution obtained from a remanent magnetization curve in the intrinsic easy direction of magnetization (axis of easy magnetization from which shape magnetic anistrophy is removed) of the magnetic layer is no more than 40 kA/m.
Rectangular wave signals are recorded or reproduced on or from a Co--O type perpendicular magnetic recording medium with a direction .theta..sub.E of the axis of easy magnetization tilted in a range of 10.degree. to 45.degree. from the direction perpendicular to the plane of the film of the magnetic layer using a ring type magnetic head with a gap length Lg of not more than 0.18 .mu.m.
REFERENCES:
patent: 4596735 (1986-06-01), Noguchi
patent: 4645690 (1987-02-01), Murakami
patent: 4766034 (1988-08-01), Sato
patent: 4855175 (1989-08-01), Wakai
patent: 4987039 (1991-01-01), Daimon
patent: 5068158 (1991-11-01), Futamoto
Abe Mayumi
Naruse Hiroji
Tateno Yasuo
Frommer William S.
Kilman L.
Sinderbrand Alvin
Sony Corporation
LandOfFree
Perpendicular magnetic recording medium and process for producti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Perpendicular magnetic recording medium and process for producti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpendicular magnetic recording medium and process for producti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1355221