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:
Oct. 29, 1996
Filed:
Sep. 12, 1995
Applicant:
Inventor:
Katsuki Kosaka, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369291 ; 360133 ;
Abstract
A disk cartridge, such as a magneto optical disk cartridge, has first and second shutters for opening and closing a center hole and a plurality of pickup holes, and a drive mechanism for causing the shutters to moves toward each other to close the holes and to move away from each other to open the holes. The drive mechanism comprise a first slide rack joined with the first shutter, a second slide rack joined with the second shutter, and a pinion rotatably mounted in a case of the cartridge and engaged with both of the first and second racks so that a movement of one of the racks in one direction causes a movement of the other rack in the opposite direction.