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:
Dec. 19, 2023
Filed:
Dec. 16, 2020
Applicants:
Denso Corporation, Kariya, JP;
Central Research Institute of Electric Power Industry, Tokyo, JP;
Inventors:
Yuichiro Tokuda, Kariya, JP;
Hideyuki Uehigashi, Kariya, JP;
Norihiro Hoshino, Yokosuka, JP;
Hidekazu Tsuchida, Yokosuka, JP;
Isaho Kamata, Yokosuka, JP;
Assignees:
DENSO CORPORATION, Kariya, JP;
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 29/36 (2006.01); C30B 25/20 (2006.01); C01B 32/956 (2017.01);
U.S. Cl.
CPC ...
C30B 29/36 (2013.01); C30B 25/20 (2013.01); C01B 32/956 (2017.08);
Abstract
A silicon carbide single crystal contains a heavy metal element having a specific gravity higher than a specific gravity of iron. An addition density of the heavy metal element at least in an outer peripheral portion of the silicon carbide single crystal is set to 1×10cmor more.