Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1993-04-22
2000-10-31
Kiliman, Leszek
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428336, 428694ML, 428694SC, 428694MT, 428694RL, 428900, 369 13, 3692752, 369283, 365122, G11B 566
Patent
active
061399493
ABSTRACT:
A magneto-optical recording medium in which information can be overwritten by a magnetic field modulation method, is provided with a magnetic thin film satisfying an inequality t.times.M.sub.s <5 .mu.m.multidot.emu/cc wherein the film thickness is, represented by t .mu.m and the saturating magnetization is represented by M.sub.s emu/cc. Even in the case where the intensity of the modulated magnetic field applied to the magneto-optical recording medium is small, a carrier to noise ratio C/N of not. less than a predetermined value and a jitter of not more than a predetermined value can be realized.
REFERENCES:
patent: 4579777 (1986-04-01), Honguu et al.
patent: 4675767 (1987-06-01), Osato et al.
patent: 4878132 (1989-10-01), Aratani et al.
patent: 4995024 (1991-02-01), Arimune et al.
"Overwriting Characteristics of Magneto-Optical Disk by Magnetic Field Modulation Recording Method", Materials for Meeting for Study of Electricity, Magnetics Research, MAG 86-95, Sep. 17, 1986, pp. 53-64.
Effects of annealing Atmosphere on Magneto-Optical Properties of Sputtered Bi-Substituted Garnet Films, Kobayashi, et al., IEEE Translation Journal on Magnetics in Japan, vol. 3, No. 6, Jun. 1988, pp. 491-492.
Write-Read Characteristics of Bi-Substituted Garnet Magneto-Optical Disc, Hayakawa, et al., IEEE Translation Journal on Magnetics in Japan, vol. 3, No. 6, Jun. 1988, pp. 487-488.
The Overwriting Characteristics of Magneto-Optical Disk by Magnetic Field Modulation Method (Invited)--IEEE Transactions on Magnetics, vol. MAG-23, No. 5, Sep. 1987, pp. 2695-2698.
High Speed Overwriteable Magneto-Optic Recording--Proc. Int. Symp. on Optical Memory, 1987, Japanese Journal of Applied Physics, Vo. 26 (1987), Supplement 26-4, pp. 149-154.
Magnetics Research MAG-87-173-180, --Japanese Electrotechnical Committee, Nov. 24, 1987.
Magnetic Properties of Amorphous GdTbCo Film: Journal of Magnetic Materials 31-34 (1983).
Magnetic Properties and Microstructure in Ho-Co Alloy Thin Films Fabricated by Rf Sputtering Technique: ICMFS 1982.
Magnetic Materials For Optical Recording: Applied Optics, vol. 13, No. 4 (Apr. 1974).
Magneto-Optic Properties in R.F. Sputtered Co-Cr Films: IEEE Transactions on Magnetics, vol. Mag-19, No. 5 (Sep. 1983).
Bias Voltage Dependence of Oxidation in Sputtered GdCo Amorphous Films: 4th Int. Conf. on Rapidly Quenched Metals (1981).
Magnetooptical Kerr Effect Spectra of Amorphous Gadolinium-Cobalt Films: Physica Status Solid (a) (1976).
RF-Sputter Epitaxy of Highly Bi-Substituted Garnet Films For Magneto-Optical Applications: The Magnetics Society of Japan 1987.
Growth and Characterization of Garnet Thin Fils For Magnetooptical Readout: The Magnetic Society of Japan (1987).
Oxide Films For Magneto-Optical Applications: The Magnetic Society of Japan (1987).
Fukami Tatsuya
Tsutsumi Kazuhiko
Kiliman Leszek
Mitsubishi Denki & Kabushiki Kaisha
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