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:
Jun. 11, 2002
Filed:
Feb. 09, 2001
Masahiro Murasato, Chita, JP;
Akihiko Honda, Aichi Pref., JP;
Katsuhiro Imai, Nagoya, JP;
Minoru Imaeda, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
In a process for producing a raw material powder including lithium potassium niobate for growing a single crystal of lithium potassium niobate, raw starting materials comprising lithium carbonate powder, potassium carbonate powder and niobium pentoxide powder are mixed in a solvent. The lithium carbonate powder and potassium carbonate powder are entirely dissolved into the solvent, and lithium carbonate and potassium carbonate are then deposited around the niobium pentoxide powder by spray-drying the mixture to obtain granulated powder, and then the granulated powder is thermally treated to produce the raw material powder.