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. 09, 2004
Filed:
Mar. 06, 2003
Applicant:
Inventors:
Kenji Kitamura, Tsukuba, JP;
Shunji Takekawa, Tsukuba, JP;
Masaru Nakamura, Tsukuba, JP;
Sunao Kurimura, Tsukuba, JP;
Assignee:
National Institute for Materials Science, Tsukuba, JP;
Primary Examiner:
Int. Cl.
CPC ...
C30B 1/00 ;
U.S. Cl.
CPC ...
C30B 1/00 ;
Abstract
A method for treating a photorefractive effect of an optical device, which comprises irradiating an optical device comprising a lithium niobate single crystal or a lithium tantalate single crystal with an ultraviolet light having a wavelength of at least 300 nm and at most 400 nm so as to suppress and control a photo-induced refractive index change (photorefractive effect) caused on the device.
Kitamura, Kenji. (2004). Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device (U.S. Patent No. 6814800). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6814800
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile