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.
Patent No.:
Date of Patent:
Aug. 20, 1991
Filed:
Dec. 13, 1989
Hirokimi Iwata, Ibaragi, JP;
Shuji Haruna, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data storage case having a write/protect assembly includes a main body of the cartridge, a plurality of detection holes formed in the lateral side and on two flat sides of the main body of the cartridge adjacent a corner of the front side of the main body of the cartridge relative to the direction of insertion of the main body of the cartridge into the interior of the recording/reproducing apparatus, and mating detection elements inserted into these detection holes. The main body of the cartridge accommodates a disk-shaped recording medium, on which information signals can be recorded, and has apertures through which the signal recording section of the disk-shaped recording medium is exposed to outside. The mating detection elements may be moved between a first position and a second position within the detection holes.