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. 08, 2026
Filed:
Sep. 02, 2024
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Ryosuke Sakon, Hyogo, JP;
Yuya Kishida, Osaka, JP;
Yu Kawamura, Osaka, JP;
Yusuke Matsuda, Hyogo, JP;
Machiko Abe, Osaka, JP;
Hironari Moroguchi, Osaka, JP;
Akito Ishii, Osaka, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A cubic boron nitride sintered material includes: 40 to 80 volume % of cubic boron nitride grains; and 20 to 60 volume % of a binder phase, wherein an average grain size d of the cubic boron nitride grains is 0.1 to 3 μm, the binder phase includes at least one selected from a second group consisting of a simple substance of one element selected from a first group, an alloy consisting of two or more elements selected from the first group, and an intermetallic compound consisting of two or more elements selected from the first group, or at least one selected from a fourth group consisting of a first compound and a solid solution originated from the first compound, and in a cross section of the cubic boron nitride sintered material, a variation coefficient Z of an area ratio of the cubic boron nitride grains is 0.25 or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile