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:
Dec. 09, 2008

Filed:

Jan. 20, 2006
Applicants:

Tetsuo Nishidate, Osaka, JP;

Takayuki Murakami, Osaka, JP;

Inventors:

Tetsuo Nishidate, Osaka, JP;

Takayuki Murakami, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical pickup with improved vibration resistance and heat dissipation is mounted astride a main shaftand a secondary shaft. The travel of the optical pickup is adapted to be guided by the main shaft, where a secondary bearing partadapted to slide relative to the secondary shaftincludes an overlapping sliding faceand an auxiliary overlapping face, and a clearance δ is formed between the auxiliary overlapping faceand the secondary shaftto improve ease of assembly. A control elementis mounted on a printed circuit boardmounted on a base member, and the control element is overlapped with a radiator plate. The radiator plateis provided with a pressing piece, and the pressing pieceis brought into elastic contact with the secondary shaftto reliably bring the overlapping sliding faceinto elastic contact with the secondary shaft


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