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:
Jan. 14, 2025
Filed:
Sep. 29, 2020
Applicant:
Korloy Inc., Seoul, KR;
Inventors:
Assignee:
KORLOY INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/02 (2006.01); C23C 14/06 (2006.01); C23C 14/08 (2006.01);
U.S. Cl.
CPC ...
C23C 14/022 (2013.01); C23C 14/0641 (2013.01); C23C 14/081 (2013.01); B23B 2226/125 (2013.01);
Abstract
The present invention relates to a cutting tool consisting of a hard base material, such as cemented carbide, cermet, ceramic, and cubic boron nitride, and a hard coating film formed on the hard base material. In the cutting tool according to the present invention, the hard coating film, which is composed of a monolayer or multilayer structure, is formed on a base material, wherein the hard coating film comprises a layer composed of an oxide, wherein in the layer composed of an oxide, the oxygen content of an edge center of the cutting tool is higher than the oxygen content in an area distanced from the edge center by 50 μm or more.