Title:
MAGNETIC DISK
Document Type and Number:
Japanese Patent JPH04301212
Kind Code:
A
Abstract:
PURPOSE: To provide the magnetic disk which is high in production yield and eliminates the problem of a degradation in envelope waveform by decreasing its groove forming regions.
CONSTITUTION: The magnetic disk D which is formed with grooves G for guiding the tracks of a magnetic head H on both sides of the concentrical or spiral tracks T is constituted by forming the grooves in a part of a circumferential or radial direction.
Inventors:
KIUCHI KATSUMI
WAKAMATSU HIROAKI
MIZOSHITA YOSHIBUMI
WAKAMATSU HIROAKI
MIZOSHITA YOSHIBUMI
Application Number:
JP6442091A
Publication Date:
October 23, 1992
Filing Date:
March 28, 1991
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G11B5/596; G11B5/66; G11B5/82; G11B5/84; G11B21/10; G11B5/60; (IPC1-7): G11B5/596; G11B5/66; G11B5/84
Attorney, Agent or Firm:
Sadaichi Igita
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