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:
Jun. 12, 2007
Filed:
Oct. 01, 2002
Applicants:
Mitsuyoshi Kawaguchi, Kanagawa, JP;
Naoki Inoue, Kanagawa, JP;
Hiroaki Mizuma, Tokyo, JP;
Takuji Nakamura, Kanagawa, JP;
Inventors:
Mitsuyoshi Kawaguchi, Kanagawa, JP;
Naoki Inoue, Kanagawa, JP;
Hiroaki Mizuma, Tokyo, JP;
Takuji Nakamura, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A disc drive unit capable of simply performing an opening and closing driving of shutters by rotation of an inner rotor of a disc cartridge using the inner rotor is provided. A disc drive unit is constituted so as to open and close shutters () by rotationally driving a partial gear () of the inner rotor () by a rack portion () of a rack member () slidably driving it relative to a disc cartridge ().