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. 12, 2023
Filed:
Jul. 30, 2021
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Yuichiro Watanabe, Osaka, JP;
Katsumi Okamura, Osaka, JP;
Akito Ishii, Osaka, JP;
Yoshiki Asakawa, Hyogo, JP;
Akihiko Ueda, Hyogo, JP;
Satoru Kukino, Hyogo, JP;
Hisaya Hama, Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Abstract
The cubic boron nitride sintered material is a cubic boron nitride sintered material comprising: cubic boron nitride particles in an amount of 70 vol % or more and less than 100 vol %, and a bonding material, wherein the bonding material includes an aluminum compound, and includes cobalt as a constituent element; the cubic boron nitride sintered material has a first region in which a space between adjacent cubic boron nitride particles is 0.1 nm or more and 10 nm or less; and when the first region is analyzed by using an energy dispersive X-ray analyzer equipped with a transmission electron microscope, the atom % of aluminum in the first region is 0.1 or more.