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. 18, 1999
Filed:
Jan. 02, 1997
Applicant:
Inventors:
Kenji Kitamura, Tsukuba, JP;
Yasunori Furukawa, Tsukuba, JP;
Nobuo Ii, Tsukuba, JP;
Shigeyuki Kimura, Tsukuba, JP;
Assignee:
National Institute for Research in Inorganic Materials, Tsukuba, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423594 ; 423275 ; 117948 ;
Abstract
An iron-doped lithium niobate single crystal having a molar fraction of Li.sub.2 O/(Nb.sub.2 O.sub.5 +Li.sub.2 O) of from 0.495 to 0.50 which is closer to the stoichiometrical composition than a usual congruent composition, and a high diffraction efficiency by a two light wave mixture.