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. 30, 2025
Filed:
Aug. 04, 2020
Sumitomo Electric Industries, Ltd., Osaka, JP;
A.l.m.t. Corp., Tokyo, JP;
Akito Ishii, Osaka, JP;
Katsumi Okamura, Osaka, JP;
Masahiro Ohata, Osaka, JP;
Masato Michiuchi, Osaka, JP;
Kei Hirai, Osaka, JP;
Nobuhide Nakamura, Hyogo, JP;
Kentaro Chihara, Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
A.L.M.T. Corp., Tokyo, JP;
Abstract
A coated super-abrasive grain comprises: a body composed of cubic boron nitride; and a coating film coating at least a portion of a surface of the body, the body having a dislocation density of 9×10/mor less, the coating film including one or more types of compounds composed of at least one type of element selected from the group consisting of a group 4 element, a group 5 element and a group 6 element of the periodic table, aluminum and silicon, and at least one type of element selected from the group consisting of oxygen, nitrogen, carbon, and boron.