Information recording carrier

Abstract

Abstract PURPOSE:To obtain an information recording carrier enabled to rewrite at least a part of information easily and stably and increase its recording density by laminating a magnetic recording medium film and a non-magnetic laser light recording medium film on a non-magnetic substrate. CONSTITUTION:The information recording carrier 1a is obtained by laminating the non-magnetic substrate 2, the non-magnetic laser light recording film 3 and the magnetic recording film 4 in this order. The laser light recording film 3 consists of a reflection factor change recording medium, and when laser light 7 converged through an optical system (optical head) 8 formed on a transparent substrate 2 is irradiated to the film 3, an amorphous area 5 in the film 3 is phase-shifted to a crystalline area 6 and recording is executed. Reproducing is executed by laser light 7 converged through the optical system 8 similarly to the recording. On the other hand, data are recorded in the magnetic recording film 4 by supplying current to a coil 10 and forming a vertical magnetization recording area 11 by a recording head (magnetic head) 9 and the reproducing is executed by a reproducing head (magnetic head) 12.

Inventors

• 👤 Yoshinori Fujimori
• 👤 藤森　良経
• 👤 Toshiharu Nakagawa
• 👤 中川　敏治
• 👤 Fumihiko Yuasa
• 👤 湯浅　文彦

Bibliographic Details