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:
Aug. 27, 2009
Masatoshi Yajima, Osaka, JP;
Kenji Matsumura, Hyogo, JP;
Hideki Hayashi, Nara, JP;
Yoshiyuki Hashimoto, Osaka, JP;
Masatoshi Yajima, Osaka, JP;
Kenji Matsumura, Hyogo, JP;
Hideki Hayashi, Nara, JP;
Yoshiyuki Hashimoto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical pickup () includes a light emitting element (), a holding member (), a light receiving element (), and a base (). The holding member () is fixed to the base () by a combined bonding portion (). The combined bonding portion () is sandwiched between the holding member () and the base () so as to fix the holding member () to the base (). The combined bonding portion () includes a first bonding portion () composed of a first adhesive and a second bonding portion () composed of a second adhesive having a higher curing shrinkage rate than the first adhesive. The first bonding portion () and the second bonding portion () are each sandwiched between the holding member () and the base (), and the second bonding portion () is provided to cover at least a part of an outer peripheral surface of the first bonding portion (). A difference between the curing shrinkage rate of the first adhesive and that of the second adhesive is 3.0% or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile