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:
Feb. 15, 2022
Filed:
Feb. 10, 2017
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Yoshio Okayama, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 29/40 (2006.01); C30B 19/02 (2006.01); C30B 19/12 (2006.01); C30B 23/02 (2006.01); C30B 25/18 (2006.01); C30B 29/22 (2006.01);
U.S. Cl.
CPC ...
C30B 29/406 (2013.01); C30B 19/02 (2013.01); C30B 19/12 (2013.01); C30B 23/025 (2013.01); C30B 25/183 (2013.01); C30B 29/22 (2013.01);
Abstract
A Group III nitride substrate contains a base material part of a Group III nitride having a front surface and a back surface, the front surface of the base material part and the back surface of the base material part having different Mg concentrations from each other.