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:
Oct. 06, 2020
Filed:
Aug. 18, 2016
Citizen Finedevice Co., Ltd., Yamanashi, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Ikuo Takahashi, Yamanashi, JP;
Takayuki Aoki, Yamanashi, JP;
Youichi Nonogaki, Tokyo, JP;
Yoshitaka Kinoshita, Tokyo, JP;
CITIZEN FINEDEVICE CO., LTD., Yamanashi, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
Abstract
A method of production of a high insulation resistance, high strength langatate-based single crystal and a langatate-based single crystal are provided. That is, a method of production of a langatate-based single crystal using the Czochralski method of pulling up a crystal from a starting material solution so as to grow a langatate-based single crystal, comprising placing the starting material solution of the single crystal in a platinum crucible and growing the single crystal using the Z-axis as the growth axis in a growth atmosphere of a mixed gas comprising an inert gas in which an oxidizing gas is contained in an amount greater than 5 vol %.