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:
Dec. 19, 2006
Filed:
Sep. 05, 2003
Naoki Inoue, Kanagawa, JP;
Susumu Shibagaki, Kanagawa, JP;
Yasuyuki Abe, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disk cartridge does not require a plate supporter for holding a chucking plate on an upper shell. In this disk cartridge, a chucking plate for chucking a disk on a turntable, driven by a spindle motor, is placed on the middle of the disk so the chucking plate is vertically movable together with the disk. The disk cartridge further includes a peripheral cylindrical rib which is not in contact with the disk and is configured to limit movement of the chucking plate in the direction of its diameter while permitting the vertical movement of the chucking plate. The peripheral cylindrical rib is molded integral with the lower surface of the upper shell.