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:
Feb. 04, 2003
Filed:
Sep. 05, 2000
Applicant:
Inventor:
Hiroshi Meguro, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/303 ;
U.S. Cl.
CPC ...
G11B 2/303 ;
Abstract
A main cartridge body unit is to be reduced in size and thickness to reliably protect a disc-shaped recording medium. To this end, a disc cartridge includes a disc-shaped recording medium , a main cartridge body unit including an upper plate and a lower plate , both of a metal material, forming a plate pair, and an intermediate frame , sandwiched between the upper and lower plates , and an upper liner sheet and a lower liner sheet , forming a set of liner sheets, bonded to inner surfaces of the upper and lower plates for protecting the disc-shaped recording medium . The disc-shaped recording medium is accommodated in the main cartridge body unit