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:
Jul. 10, 2007
Filed:
Aug. 16, 2004
Takatsugu Funawatari, Miyagi, JP;
Susumu Shibagaki, Kanagawa, JP;
Naoki Inoue, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disk cartridge including lower and upper shells, a rotation wheel housed rotatably in the cartridge and which houses a disk and has formed therein a second opening, corresponding to a first read/write opening in the lower shell, through which the housed disk is exposed to outside, a pair of shutter plates provided between the lower shell and rotation wheel and which operates with the rotation of the rotation wheel to uncover the first and second openings when the latter are coincide with each other, and a locking member including a locking portion installed pivotably to the upper shell and engaged in an engagement concavity in the rotation wheel to lock the rotation wheel in a position where the pair of shutter plates covers the first opening, and an unlocking portion which cancels the engagement of the locking portion in the engagement concavity.