Magnetic recording using recording media having temperature...

Details Magnetic recording using recording media having temperature... Magnetic recording using recording media having temperature...

G - Physics

11

B

352/10.5

G11B 5/86 (2006.01)

Patent

CA 1136761

-0- MAGNETIC RECORDING USING RECORDING MEDIA HAVING TEMPERATURE DEPENDENT COERCIVITY Abstract of the Disclosure A magnetic recording which is useful as a mirror image duplication video tape master is made from another magnetic recording by anhysteretic transfer at a temperature at which the coercive force of the master is much less than the coercive force of the other recording. Preferably, the magnetic recording layer of the master comprises fine par- ticles of a manganese bismuth alloy, the coercivity of which decreases with decreasing temperature, and the other record comprises a magnetic recording layer having a coercivity which increases with decreasing temperature. The master record may subsequently be used to duplicate copies of the recording by anhysteretic transfer to a copy record having a coercive force which, at the temperature at which the trans- fer is made (typically room temperature), is substantially lower than the coercive force of the master.

351812

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-979046