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. 06, 2004
Filed:
Aug. 27, 2002
Tetsuhiro Shiomi, Kanagawa, JP;
Takuya Niitsu, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A main cartridge body portion is formed with first and second openings facing first and second wall sections. These first and second openings are adapted for exposing a portion of the signal recording region of a disc-shaped recording medium to outside across inner and outer rims of the disc-shaped recording medium and for allowing the center of the disc-shaped recording medium to face outwards. First and second shutter members are arranged for movement between the first and second wall sections. The second shutter member is rotated in association with the first shutter member by having its portion engaged and held by an engagement holding portion provided on the first shutter member.