Magnetic recording media and magnetic recording system using the

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428 655, 428141, 428336, 428694T, 428694TS, 428694TM, 428694TR, 428694TP, 428900, 427128, 427129, 427130, 427131, 427132, 2041922, 20419235, G11B 566

Patent

active

057502307

ABSTRACT:
In a magnetic recording medium having a nonmagnetic disk substrate and a magnetic film formed on the surface of the non-magnetic disk substrate, a surface average roughness factor Ra(r) on the surface of the medium being from 0.3 nm to 3 nm, an orientation ratio of coercivity being from 0.1 to 0.7, and an in-plane magnetic anisotropic energy being from 3.times.10.sup.4 J/m.sup.3 to 5.times.10.sup.5 J/m.sup.3. By using such a medium, it is possible to provide a magnetic recording apparatus in which the magnetic head is capable of flying in a low position and high-density recording is achieved.

REFERENCES:
patent: 4438066 (1984-03-01), Aboaf
patent: 4610911 (1986-09-01), Opfer
patent: 4619856 (1986-10-01), Kamada
patent: 4631202 (1986-12-01), Opfer
patent: 4663685 (1987-05-01), Tsong
patent: 4713708 (1987-12-01), Krounbi
patent: 4920013 (1990-04-01), Kobayashi
patent: 5079062 (1992-01-01), Masuda
patent: 5250338 (1993-10-01), Shintani
patent: 5316844 (1994-05-01), Suzuki
patent: 5543221 (1996-08-01), Kitakami
Simpson, IEEE Trans. Magn. vol. MAG-23(5), p. 3405 1987.
Japanese Patent Unexamined Publication No. 58-7806 Jan. 17, 1983.
Japanese Patent Unexamined Publication No. 60-111323, Jun. 17, 1985.
Japanese Patent Unexamined Publication No. 62-40610 Feb. 21, 1987.
Japanese Patent Unexamined Publication No. 63-117309 May 21, 1988.
M. Mihashi, Japanese Patent Unexamined Publication No. 61-29418 Feb. 10, 1986.
N. Nakajima, Japanese Patent Unexamined Publication No. 63-121123 May 25, 1988.
F. Maruta, Japanese Patent Unexamined Publication No. 62-146434 Jun. 30, 1987.
A. Moriguchi, Japanese Patent Unexamined Publication No. 1-162229 Jun. 26, 1983.
Teng. et al "Anisotcopy Induced Siomol Weveyorm Moderation of DC Magneflow Sputtered Thin Film Discks", IEEE Trans. Magn. vol. MAG-22(5), p. 579 (Feb. 1986).
E. M. Simpson, et al., "Effect of Circumtereutial Texture on the Properties of Thin Film Rigiol Recording Disks", IEEE Trans. Magn. vol. MAG-23(5) p. 3405 (1987).
Japanese Patent Unexamined Publication No. 62-262227 Nov. 14, 1987.
Japanese Patent Unexamined Publication No. 51-44917 Apr. 16, 1976.
M. Aoi, Japanese Patent Unexamined Publication No. 63-146219 Jun. 18, 1988.
K. Yamaguchi, Japanese Patent Unexamined Publication No. 63-42027 Feb. 23, 1988.
I. Matsuda, Japanese Patent Unexamined Publication No. 2-31326, Feb. 1, 1990.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magnetic recording media and magnetic recording system using the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic recording media and magnetic recording system using the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording media and magnetic recording system using the will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-977606

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.