The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 1998

Filed:

Apr. 16, 1997
Applicant:
Inventor:

Akira Mizuta, Kanagawa-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360133 ;
Abstract

A magnetic disc cartridge includes a casing formed by upper and lower shells bonded together. A magnetic disc is supported for rotation in the casing and includes a recording area and a non-recording area around the recording area. A pair of liners are fixed respectively to the inner surfaces of the upper and lower shells to be opposed to the upper and lower surfaces of the disc. Each of the upper and lower shells is provided with at least one protrusion projecting toward the disk from a portion of the inner surface which is outside the portion of the shell opposed to the recording area of the magnetic disc and is opposed to at least a part of the non-recording area of the magnetic disc, whereby the liners on the respective shells are shifted toward the disk from the inner surfaces of the shells by the protrusions.


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