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:
Jan. 29, 2013

Filed:

Jan. 29, 2009
Applicants:

Daiki Kobayashi, Miyagi, JP;

Isao Watanabe, Miyagi, JP;

Yasuyuki Abe, Miyagi, JP;

Inventors:

Daiki Kobayashi, Miyagi, JP;

Isao Watanabe, Miyagi, JP;

Yasuyuki Abe, Miyagi, JP;

Assignee:

Sony Corporation, Tokyo, JP;

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

A disk cartridge that has high durability with respect to a drop impact is provided. The disk cartridge includes: a disk-like recording medium; a cartridge case that rotatably accommodates the disk-like recording medium and is formed with a first opening that exposes a part of the disk-like recording medium; an inner rotor that is rotatably supported inside the cartridge case and includes a main surface portion formed with a second opening corresponding to the first opening; shutter members that are movable between a closing position at which the first opening is closed and an opening position at which the first opening is opened in accordance with a rotation of the inner rotor; and a buffer mechanism that is formed on the main surface portion of the inner rotor and includes rotary shafts that rotatably support the shutter members and elastic support portions that respectively support the rotary shafts and can be elastically deformed with respect to the main surface portion.


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