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:
Jun. 08, 1999
Filed:
Feb. 26, 1997
Hikaru Mizutani, Mino, JP;
Hitachi Maxell, Ltd., Osaka-fu, JP;
Abstract
A disc cartridge includes a cartridge casing for freely rotatably accommodating a disc-shaped recording medium. The cartridge casing has positioning recesses defined in respective portions of the right and left sides of the cartridge casing adjacent the rear end thereof. A generally U-shaped access opening is defined in the rear end of the cartridge casing and respective portions of the left and right sides thereof including the associated recesses. A lid assembly for selectively opening and closing the access opening is pivotally supported by the cartridge casing. The lid assembly includes a lid body adapted to protrude into the cartridge casing so as to occupy a space between the recording medium within the cartridge casing and the access opening. The lid body includes a regulating surface for restricting a play of the recording medium within the cartridge casing and left and right cutouts defined therein in a manner alignable with the left and right recesses, respectively. A thin-walled cavity for reducing the volume and weight of the lid assembly being formed so as to occupy a major portion of surface walls of the lid body while opening at at least one of upper and lower surface walls.