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:
Apr. 02, 2013
Filed:
Mar. 14, 2008
Applicants:
Yoshizumi Tanaka, Yamaguchi, JP;
Itsuhiro Fujii, Yamaguchi, JP;
Inventors:
Yoshizumi Tanaka, Yamaguchi, JP;
Itsuhiro Fujii, Yamaguchi, JP;
Assignee:
Ube Industries, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 9/00 (2006.01); C30B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A production method of a zinc oxide single crystal, comprising depositing a crystal of zinc oxide on a seed crystal from a mixed melt of zinc oxide and a solvent capable of melting zinc oxide and having a higher average density than zinc oxide in the melt. Preferably, a zinc oxide single crystal is continuously pulled while supplying the same amount of a zinc oxide raw material as that of the pulled zinc oxide. A single crystal excellent in the crystal quality and long in the pulling direction can be continuously produced.