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:
Feb. 05, 1980
Filed:
Jan. 26, 1976
Applicant:
Inventors:
Koichi Megumi, Tokyo, JP;
Hirotsugu Kozuka, Tokyo, JP;
Masayoshi Kobayashi, Hachioji, JP;
Yoshio Furuhata, Kodaira, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430-2 ; 252 629 ; 252 / ; 346134 ; 350-361 ;
Abstract
An optical element is composed of a single crystal of strontium barium niobate doped with a transition metal element such as cerium, vanadium or uranium. This element has the property of undergoing very sensitively a change in its refractive index by the application of a beam of light of specific wavelength.
Megumi, Koichi. (1980). Strontium barium niobate single crystal doped with ce (U.S. Patent No. 4187109). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4187109
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile