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.

Date of Patent:
Apr. 08, 2008

Filed:

Jul. 23, 2004
Applicants:

Kazuhito Kurita, Kanagawa, JP;

Mikinori Matsuda, Kanagawa, JP;

Tokio Kanada, Kanagawa, JP;

Tadami Nakamura, Saitama, JP;

Inventors:

Kazuhito Kurita, Kanagawa, JP;

Mikinori Matsuda, Kanagawa, JP;

Tokio Kanada, Kanagawa, JP;

Tadami Nakamura, Saitama, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 23/03 (2006.01);
U.S. Cl.
CPC ...
Abstract

A disc cartridge is provided. The disc cartridge includes an optical disc and a main cartridge body unit rotatably housing the optical disc. A lateral surface of the main cartridge body unit as an inserting end of the main cartridge body unit into the recording and/or reproducing apparatus is a semicircular arcuate section having the center of the optical disc accommodated in the main cartridge body unit as center. The direction of insertion of the main cartridge body unit into the recording and/or reproducing apparatus may be discriminated readily to achieve smooth loading.


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