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.

Date of Patent:
Jan. 02, 2024

Filed:

Jan. 19, 2022
Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Yasuki Kido, Osaka, JP;

Katsumi Okamura, Osaka, JP;

Chiaki Tokuda, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); C22C 29/00 (2006.01); C22C 29/02 (2006.01);
U.S. Cl.
CPC ...
B23B 27/14 (2013.01); C22C 29/005 (2013.01); C22C 29/02 (2013.01); B23B 2224/28 (2013.01);
Abstract

A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of no more than 0.1 μm, the second hard phase has a dispersity of no more than 0.7, the second hard phase has a content of no less than 0.1 vol % and no more than 15 vol %, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of no less than 0.1 vol % and no more than 20 vol %.


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