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:
Aug. 17, 2004
Filed:
Mar. 28, 2002
Applicant:
Inventors:
Tomomi Okamoto, Fujisawa, JP;
Kyuichiro Nagai, Fujisawa, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 2/303 ;
U.S. Cl.
CPC ...
G11B 2/303 ;
Abstract
A disc cartridge having a single case member which covers most of the base surface of the disc cartridge and is disposed on the recording side of a recording medium is described. An access window for a recording/playback device to access the recording medium is opened and closed by a shutter.