Title:
MAGNETIC RECORDING MEDIUM
Document Type and Number:
Japanese Patent JPH04286719
Kind Code:
A
Abstract:
PURPOSE: To enhance the mechanical characteristics and electromagnetic conversion characteristics of the magnetic recording medium by applying and providing a magnetic layer having resilience and rigidity in combination on a base.
CONSTITUTION: The total thickness of the magnetic recording medium having ≥6.0% and ≤10% crack generating elongation of the magnetic layer 2 and ≥40kg/mm2 and ≤700kg/mm2 Young's modulus and the magnetic layer 2 contg. magnetic powder on the nonmagnetic base 1 is ≤18μm total thickness the thickness A of the above-mentioned magnetic layer, the thickness B of the above- mentioned nonmagnetic base are A/B≤0.25, the crack generating elongation of the magnetic layer is 6 to 8% and the Young's modulus is ≥500kg/mm2.
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Inventors:
NAKANO YASUSHI
SHIMIZU YUJI
MIYAKE TORU
GENDA KAZUO
SHIMIZU YUJI
MIYAKE TORU
GENDA KAZUO
Application Number:
JP7566491A
Publication Date:
October 12, 1992
Filing Date:
March 15, 1991
Export Citation:
Assignee:
KONISHIROKU PHOTO IND
International Classes:
G11B5/708; C09D5/23; C09D7/12; G11B5/73; (IPC1-7): G11B5/708
Attorney, Agent or Firm:
Utaka Katsumi
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