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. 22, 2009
Filed:
Apr. 07, 2005
Tohru Kimura, Hachioji, JP;
Junji Hashimura, Sagamihara, JP;
Yuichi Atarashi, Hachioji, JP;
Toshiyuki Kojima, Hachioji, JP;
Tohru Kimura, Hachioji, JP;
Junji Hashimura, Sagamihara, JP;
Yuichi Atarashi, Hachioji, JP;
Toshiyuki Kojima, Hachioji, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
An objective lens system for an optical pickup apparatus, includes in order from an object side: a first lens group having negative paraxial power P(mm); and a second lens group having positive paraxial power P(mm) for converging a light flux emitted from the first lens group on an information recording surface of an optical information recording medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile