Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1994-08-26
1996-04-09
Kiliman, Leszek
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428 646, 428 651, 428 652, 428694ML, 428694DE, 428694AH, 428694FR, 428695, 428900, G11B 566, B32B 302
Patent
active
055060234
ABSTRACT:
A magneto-optical disc having an optical-magnetic recording layer, formed on the surface of a transparent base plate opposite its beam incident surface is disclosed, wherein a layer excellent in lubriciousness is formed in superimposition on the optical-magnetic recording layer to enable the magnetic head to be in direct sliding contact with the disc surface to provide for stable recording and improved recording performance as well as to reduce adverse effects caused by deposition of foreign matter such as dust and dirt.
REFERENCES:
patent: 4760012 (1988-07-01), Mochizuki et al.
patent: 4849305 (1989-07-01), Yanagisawa
patent: 5053288 (1991-10-01), Hoshimoto
Patent Abstracts of Japan, vol. 14, No. 199 (P-1040), 23 Apr. 1990 & JP-A-2 040 149 (Hitachi Ltd), 8 Feb. 1990.
Patent Abstracts of Japan, vol. 13, No. 32 (P-817), 25 Jan. 1989 & JP-A-63 229 643 (Fujitsu Ltd), 26 Sep. 1988.
Patent Abstracts of Japan, vol. 13, No. 547 (P-971), 11 Sep. 1989 & JP-A-1 227 241 (Alps Electric Co., Ltd.), 11 Sep. 1989.
Patent Abstracts of Japan, vol. 13, No. 239 (P-879), 6 Jun. 1989 & JP-A-1 043 834 (Alps Electric Co., Ltd), 16 Feb. 1989.
Patent Abstracts of Japa, vol. 15, No. 95 (P-1176), 7 Mar. 1991 & JP-A-2 308 445 (Fujitsu Ltd.), 21 Dec. 1990.
Fujisawa Hirotoshi
Ohmori Takashi
Yoshida Tadao
Kiliman Leszek
Sammut Charles P.
Sony Corporation
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