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:
Sep. 20, 2011

Filed:

Apr. 16, 2009
Applicants:

Hiromasa Sasaoka, Osaka, JP;

Fumiaki Mori, Osaka, JP;

Inventors:

Hiromasa Sasaoka, Osaka, JP;

Fumiaki Mori, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A base of an optical pickup includes a first bearing portion through which one of two guide shafts disposed in parallel to each other is inserted and a second bearing portion through which the other guide shaft is inserted, and is slidable along the two guide shafts. Under the first guide shaft that is inserted through the first bearing portion, a nut hold portion for holding a nut that connects a member of a drive mechanism for driving the base and the base to each other is disposed on the base. The nut hold portion includes an insertion opening that allows the nut to be inserted along a direction substantially parallel to a longitudinal direction of the first guide shaft.


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