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:
Sep. 26, 2023
Filed:
Dec. 16, 2019
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Akito Ishii, Osaka, JP;
Katsumi Okamura, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/5831 (2006.01); C04B 35/58 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
C04B 35/5831 (2013.01); C04B 35/58014 (2013.01); C04B 35/6262 (2013.01); C04B 35/6264 (2013.01); C04B 35/62675 (2013.01); C04B 35/645 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/386 (2013.01); C04B 2235/3813 (2013.01); C04B 2235/3847 (2013.01); C04B 2235/3865 (2013.01); C04B 2235/3886 (2013.01); C04B 2235/404 (2013.01); C04B 2235/405 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/721 (2013.01); C04B 2235/725 (2013.01); C04B 2235/762 (2013.01); C04B 2235/9669 (2013.01);
Abstract
A cubic boron nitride sintered material comprises 30% by volume or more and 99.9% by volume or less of cubic boron nitride grains and 0.1% by volume or more and 70% by volume or less of a binder phase, the cubic boron nitride grain having a carbon content of 0.08% by mass or less, the cubic boron nitride sintered material being free of free carbon.