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:
May. 24, 2022
Filed:
Dec. 14, 2017
Applicants:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Hardmetal Corp., Itami, JP;
Inventors:
Assignees:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Hardmetal Corp., Itami, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); C04B 35/5831 (2006.01); B23C 5/16 (2006.01); B23B 51/00 (2006.01); C23C 30/00 (2006.01);
U.S. Cl.
CPC ...
B23B 27/14 (2013.01); B23B 51/00 (2013.01); B23C 5/16 (2013.01); C04B 35/5831 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); B23B 2224/08 (2013.01); B23B 2224/32 (2013.01); B23B 2224/36 (2013.01); B23B 2226/125 (2013.01); B23B 2228/10 (2013.01); B23C 2226/125 (2013.01); B23C 2228/10 (2013.01);
Abstract
A cutting tool includes a base material, and a coating film covering the base material in contact with the base material. The base material is a cubic boron nitride sintered material. The coating film is a ceramic. An amount of oxygen in the coating film is less than or equal to 0.040 mass percent.