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:
Oct. 17, 2023
Filed:
Nov. 13, 2018
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Hitoshi Sumiya, Osaka, JP;
Yuh Ishida, Osaka, JP;
Kensei Hamaki, Osaka, JP;
Katsuko Yamamoto, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/26 (2017.01); C08K 3/04 (2006.01); C01B 32/05 (2017.01);
U.S. Cl.
CPC ...
C01B 32/26 (2017.08); B01D 2255/209 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/702 (2013.01); C01B 32/05 (2017.08); C01P 2004/38 (2013.01); C08K 3/04 (2013.01);
Abstract
A diamond polycrystal is a diamond polycrystal basically composed of a diamond single phase, wherein the diamond polycrystal is composed of a plurality of diamond grains having an average grain size of less than or equal to 30 nm, and the diamond polycrystal has a carbon dangling bond density of more than or equal to 10 ppm.