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. 26, 2007
Filed:
Feb. 25, 2003
Hironori Okazawa, Katano, JP;
Teruyuki Takizawa, Neyagawa, JP;
Yoshito Saji, Nishinomiya, JP;
Kuniko Nakata, Neyagawa, JP;
Manabu Obata, Tokyo, JP;
Naoki Inoue, Tokyo, JP;
Mitsunori Matsumura, Tokyo, JP;
Hironori Okazawa, Katano, JP;
Teruyuki Takizawa, Neyagawa, JP;
Yoshito Saji, Nishinomiya, JP;
Kuniko Nakata, Neyagawa, JP;
Manabu Obata, Tokyo, JP;
Naoki Inoue, Tokyo, JP;
Mitsunori Matsumura, Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disc cartridge includes a cartridge body, a first shutter, a second shutter, and a rotational member. The cartridge body includes a disc storage portion, a chucking opening and a head opening. The disc storage portion has a disc window and a bottom and stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion and that the disc exposes the first side inside the disc window. The first and second shutters are provided on the bottom of the disc storage portion to expose or cover the head opening. The rotational member is provided over the first and second shutters inside the disc storage portion and is engaged with the first and second shutters in such a manner as to open or close the first and second shutters when rotates inside the disc storage portion.