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:
Feb. 17, 2026
Filed:
Oct. 01, 2021
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Hironari Moroguchi, Hyogo, JP;
Yuki Tsutsumiuchi, Hyogo, JP;
Michiko Matsukawa, Hyogo, JP;
Akihiko Ueda, Hyogo, JP;
Satoru Kukino, Osaka, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A cubic boron nitride sintered material comprising cubic boron nitride grains and a binder, in which a content of the cubic boron nitride grains is no less than 30% by volume and no more than 80% by volume, the binder includes at least one selected from a second group consisting of a material made of a single element selected from a first group consisting of a group 4 element, a group 5 element and a group 6 element of the periodic table, aluminum, silicon, iron, cobalt and nickel, and an alloy and an intermetallic compound each composed of no less than two elements selected from the first group, and a content of a void in the cubic boron nitride sintered material is no less than 0.001% by volume and no more than 0.20% by volume.