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:
Nov. 22, 2011
Filed:
Aug. 13, 2007
Applicant:
Tetsuya Ogata, Kanagawa, JP;
Inventor:
Tetsuya Ogata, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical system for efficiently extracting plural signal beams from a bundle of rays reflected from a multilayer optical disc.
Ogata, Tetsuya. (2011). Optical system, optical pickup apparatus, and optical disc apparatus for extracting signal beams (U.S. Patent No. 8064316). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8064316
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile