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:
Sep. 27, 2022
Filed:
Oct. 16, 2020
Applicant:
Showa Denko K.k., Tokyo, JP;
Inventor:
Yohei Fujikawa, Hikone, JP;
Assignee:
SHOWA DENKO K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 23/06 (2006.01); C30B 35/00 (2006.01); C30B 23/00 (2006.01); C30B 29/36 (2006.01);
U.S. Cl.
CPC ...
C30B 35/002 (2013.01); C30B 23/002 (2013.01); C30B 23/06 (2013.01); C30B 29/36 (2013.01);
Abstract
A crystal growth apparatus according to the present embodiment includes a crucible, a heater which is installed on an outward side of the crucible and surrounds the crucible, and a coil which is installed on an outward side of the heater and surrounds the heater, in which an inner surface of the heater on the crucible side includes a first region, and a second region which is further away from an outer side surface of the crucible than the first region is.