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:
Mar. 10, 2026
Filed:
Mar. 28, 2022
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Hitoshi Sumiya, Osaka, JP;
Yoshiki Nishibayashi, Osaka, JP;
Yikang Zuo, Osaka, JP;
Jin Hwa Lee, Osaka, JP;
Minori Teramoto, Osaka, JP;
Yutaka Kobayashi, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 19/12 (2006.01); C30B 29/04 (2006.01);
U.S. Cl.
CPC ...
C30B 29/04 (2013.01); C30B 19/12 (2013.01);
Abstract
A single-crystal diamond, wherein the single-crystal diamond has a nitrogen content based on the number of atoms of more than 0.1 ppm and 50 ppm or less, the single-crystal diamond has a boron content based on the number of atoms of 0.1 ppm or less, the single-crystal diamond has an average of a phase difference per unit thickness of 20 nm/mm or less, and the phase difference has a standard deviation of 10 nm/mm or less.