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:
Jul. 29, 2025
Filed:
Sep. 08, 2021
Applicant:
Sumitomo Electric Hardmetal Corp., Itami, JP;
Inventors:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP., Itami, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 28/00 (2006.01); B23B 27/14 (2006.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
C23C 28/42 (2013.01); B23B 27/14 (2013.01); C23C 28/042 (2013.01); C23C 28/044 (2013.01); B23B 2228/105 (2013.01);
Abstract
A cutting tool includes a substrate and a coating film that is disposed on the substrate, wherein the coating film includes a first layer composed of metal tungsten and hexagonal ditungsten carbide, and the first layer has an elastic deformation rate of 43.0 or more and 58.0 or less.