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:
Oct. 05, 1999

Filed:

Dec. 04, 1996
Applicant:
Inventor:

Hirotoshi Fujisawa, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369291 ; 369 772 ;
Abstract

A method for interchangeably using a first and second type of disc cartridge. The first type of disc cartridge has a shutter suitable for being made from bent sheet metal. The second type of disc cartridge has a shutter suitable for being made from synthetic material, such as a synthetic resin.


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