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:
May. 25, 2010
Filed:
Mar. 31, 2006
Applicant:
Shinichi Fujinoki, Saitama, JP;
Inventor:
Shinichi Fujinoki, Saitama, JP;
Assignee:
Pioneer Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical pickup to be used for both DVD and CD is provided with an aberration correcting device using liquid crystal on an input side of an objective lens. A spherical aberration of a CD is corrected by using an electrode for DVD spherical aberration correction and electrodes for DVD astigmatism correction.
Fujinoki, Shinichi. (2010). Aberration correcting apparatus, optical pickup, and aberration correcting method (U.S. Patent No. 7724633). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7724633
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile