Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1990-11-06
1991-10-15
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record medium
In container
369290, 369270, G11B 2303, G11B 370
Patent
active
050579606
ABSTRACT:
A hub to be attached to the central portion of a recording medium comprises a flat plate-like body made of a metallic material, and an annular resinous body firmly attached to the flat plate-like body by insert-molding, wherein at least one bent portion with an opening for connecting the annular resinous body to the flat-plate-like body is formed in the flat plate-like body so that the opening is in parallel to the upper or lower surface of the flat plate-like body.
REFERENCES:
patent: 4866697 (1989-09-01), Yamaguchi et al.
Ikebe Masaru
Ishida Toshihiko
Shiba Haruo
Evans Jefferson
Heinz A. J.
TDK Corporation
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