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:
Nov. 18, 2014
Filed:
May. 12, 2006
Applicants:
Seiji Sarayama, Miyagi, JP;
Hirokazu Iwata, Miyagi, JP;
Akihiro Fuse, Miyagi, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B 9/00 (2006.01); C30B 11/00 (2006.01); C30B 17/00 (2006.01); C30B 21/02 (2006.01); C30B 28/06 (2006.01); C30B 29/40 (2006.01); C30B 35/00 (2006.01); C30B 9/12 (2006.01);
U.S. Cl.
CPC ...
C30B 9/12 (2013.01); C30B 29/403 (2013.01); C30B 35/00 (2013.01);
Abstract
In a method of producing a group III nitride crystal in which a melt holding vessel where a melt containing a group III metal and flux is held is accommodated in a reaction vessel and a group III nitride crystal is produced as a substance containing nitrogen is supplied from an outside to the reaction vessel through a pipe, the method includes a step of forming an accumulated part of a liquid in the pipe to thereby temporarily close the pipe before growing the group III nitride crystal in the melt holding vessel.