Title:
MAGNETIC RECORDING MEDIUM
Document Type and Number:
Japanese Patent JPS59139179
Kind Code:
A
Abstract:
PURPOSE:To obtain a magnetic recording medium enabled to remove noises due to static electricity, by using a conductive jacket. CONSTITUTION:A jacket is obtained by punching a metallic plate such as an Al plate with 0.2mm. thicknss in accodance with a fixed pattern. A liner previously punched as a prescribed shape and immersed with an antistatic agent is sticked to the jacket with a conductive paint. Subsequently, the jacket is folded so as to form a bag. A disc previously cut out as a prescribed shape is inserted into the bag of the jacket and the end part of the jacket is pressed and calked to seal the disc. After shaping, the disk is recorded and reproduced by a drive enabled to record and reproduce.
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Inventors:
KARIMOTO HIROYASU
SUMITA ISAO
NAKAYAMA YASUHIKO
SUMITA ISAO
NAKAYAMA YASUHIKO
Application Number:
JP1177283A
Publication Date:
August 09, 1984
Filing Date:
January 27, 1983
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G11B23/033; G11B23/03; (IPC1-7): G11B23/02
Attorney, Agent or Firm:
Toshio Nakao