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:
Sep. 25, 2012
Filed:
Apr. 19, 2010
Applicants:
Satoshi Obase, Osaka, JP;
Toshiaki Takasu, Osaka, JP;
Hiroaki Suzuki, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/12 (2006.01); G11B 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an optical pickup device, a supporting basethat has a main-shaft bearingwith two concentric round holes to pass a main shaftthrough is formed out of a synthetic resin. On the other hand, an optical base, which has a sub-shaft bearingto pass a sub-shaftthrough and which supports a light emitter, a beam splitter, a collimator lensand a photodetector, is formed by metal die casting process. And a pickup frameis formed by bonding the supporting baseand the optical basetogether with an adhesive.