Magneto-optical recording medium and method of reproducing infor

Stock material or miscellaneous articles – Composite – Of inorganic material

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Other Related Categories

428694RE, 428694MM, 428694EC, 428694GR, 428900, 369 13, 3692755, 3692754, 369284, 369286, 369288, 360 53, 360114, G11B 566

Type

Patent

Status

active

Patent number

060307161

Description

ABSTRACT:
A magneto-optical recording medium adapted for reproduction of a high resolution signal without the necessity of a reproducing magnetic field. The magneto-optical recording medium comprises a transparent substrate and deposits of a reproducing layer, a switch layer and a recording layer formed on the transparent substrate successively. The reproducing layer is a perpendicular magnetization film at a room temperature but is turned to an in-plane magnetization film when heated beyond a predetermined temperature. Each of the switch layer and the recording layer is a perpendicular magnetization film. The respective Curie temperatures Tc1, Tc2 and Tc3 of the reproducing layer, the switch layer and the recording layer satisfy the relationship of Tc1>Tc3>Tc2. When a reproducing laser beam is irradiated to the recording medium, the switched connection between the reproducing layer and the recording layer is interrupted in a high temperature region heated beyond the Curie temperature of the switch layer, whereby the reproducing layer is caused to present in-plane magnetization.

REFERENCES:
patent: 4518657 (1985-05-01), Yanagida
patent: 5016232 (1991-05-01), Tadokoro et al.
patent: 5094925 (1992-03-01), Ise et al.
patent: 5239534 (1993-08-01), Matsumoto
patent: 5309427 (1994-05-01), Matsumoto
patent: 5691072 (1997-11-01), Izumi et al.

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

Magneto-optical recording medium and method of reproducing infor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optical recording medium and method of reproducing infor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optical recording medium and method of reproducing infor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-680918

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