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:
Jul. 20, 2021

Filed:

May. 09, 2019
Applicant:

Sumitomo Electric Hardmetal Corp., Itami, JP;

Inventors:

Nozomi Tsukihara, Itami, JP;

Rintaro Sugimoto, Itami, JP;

Yutaka Kobayashi, Itami, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); C23C 16/27 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); C23C 16/271 (2013.01); B23B 2226/31 (2013.01); B23B 2228/10 (2013.01);
Abstract

A diamond-coated tool includes: a substrate; and a diamond layer that coats the substrate, wherein the diamond layer includes a first region that is in contact with the substrate, the first region includes a region Ssurrounded by an interface P between the substrate and the diamond layer and an imaginary plane Vseparated from the interface P by a distance of 2 μm, and the region Shas crystal grains grown in random directions.


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