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:
Apr. 28, 2009
Filed:
Oct. 27, 2004
Takashi Ohgi, Miyagi, JP;
Takahiro Yamada, Saitama, JP;
Kazuhito Kurita, Kanagawa, JP;
Tokio Kanada, Kanagawa, JP;
Toru Morikawa, Kanagawa, JP;
Takashi Ohgi, Miyagi, JP;
Takahiro Yamada, Saitama, JP;
Kazuhito Kurita, Kanagawa, JP;
Tokio Kanada, Kanagawa, JP;
Toru Morikawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disk cartridge is provided which includes an optical disk (), a cartridge body () having formed therein a head opening () through which a part of the optical disk () is exposed to outside in a range between the inner and outer radii thereof, a shutter member () supported movably on the cartridge body () to uncover and cover the head opening (), and a two-way forcing mechanism () to force the shutter member () toward any selected one of positions to cover and uncover the head opening (). The two-way forcing mechanism () forces the shutter member () toward any selected one of the positions to cover and uncover the head opening () correspondingly to a position of the shutter member () relative to the head opening ().