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:
Mar. 30, 2010

Filed:

Aug. 18, 2006
Applicants:

Katsuyoshi Asakura, Kanagawa, JP;

Tomoyuki Takahashi, Kanagawa, JP;

Inventors:

Katsuyoshi Asakura, Kanagawa, JP;

Tomoyuki Takahashi, Kanagawa, JP;

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

A cartridgereceiving a photosensitive recording disctherein including: a cartridge bodyhaving inner openingsandexposing part of the recording discto the outside; a light-shield plateattached to the outside of the cartridge bodyand having outer openingsandwhich face the inner openingsand; and a shutteropening/closing the inner openingsandand the outer openingsandbetween the cartridge bodyand the light-shield plate; wherein recessesandfor inserting end edgesof the outer circumference of the light-shield plateare provided in light-shield plate attachment surfacesandof the cartridge bodyso that when the end edgesare inserted into the recessesandand attached to the cartridge body, a labyrinth-shaped light-shielding structure is formed.


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