Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OVERLAY SHEET FOR MAGNETIC CARD AND MAGNETIC CARD
Document Type and Number:
Japanese Patent JPH11175961
Kind Code:
A
Abstract:

To obtain an inexpensive magnetic card with good stability of quality showing good reproducing output of magnetic recording and having wide latitude for design.

This magnetic card is produced by using an overlay sheet for a magnetic card. The overlay sheet consists of a hard vinyl chloride sheet 1 having 50 to 300 μm thickness and a magnetic recording layer 2 applied all over the one surface of the sheet 1. The magnetic powder used in the magnetic recording layer 2 consists of Co-coated γ-Fe2O3 having 600 to 800 Oe coercive force and ≥80 emu/g residual magnetization, and the magnetic powder is included by 80 to 90 wt.% of the magnetic recording layer 2.


Inventors:
TAKENAKA TSUYOSHI
Application Number:
JP34558197A
Publication Date:
July 02, 1999
Filing Date:
December 15, 1997
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO BAKELITE CO
International Classes:
G06K19/06; G11B5/706; G11B5/73; G11B5/80; G11B13/00; (IPC1-7): G11B5/80; G06K19/06; G11B5/706; G11B13/00