Title:
MAGNETIC ELEMENT
Document Type and Number:
Japanese Patent JPS62257624
Kind Code:
A
Abstract:
PURPOSE: To increase memory capacity and to lower cost without incorporating a binder into a magnetic film by sticking a sputtered magnetic sheet to a hard base.
CONSTITUTION: A shallow groove 2 is formed longitudinally to the prescribed position of the hard base 1 of a magnetic card and the sputtered magnetic sheet 3 is stuck by using an org. adhesive agent 4 into the grooves 2. Gamma hematite (τ-Fe2O3), cobalt (Co)-contg. τ-Fe2O3 and chromium dioxide (CrO2), etc., can be adopted for a magnetic material 9 of the magnetic sheet 3. The magnetic film 9 formed by a sputtering method is secure without contg. the binder and has the large residual magnetic Br to provide the high output.
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Inventors:
ENDO TAKESHI
Application Number:
JP9942386A
Publication Date:
November 10, 1987
Filing Date:
May 01, 1986
Export Citation:
Assignee:
ENDO TAKESHI
International Classes:
G11B5/80; G11B5/64; G11B5/73; G11B5/82; G11B5/855; (IPC1-7): G11B5/80; G11B5/82; G11B5/855
Attorney, Agent or Firm:
Toru Tanabe
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