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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.:

US 10745802 B1

PDFFull Text
Date of Patent:
Aug. 18, 2020

Filed:

Mar. 22, 2018

Diamond-coated cemented carbide cutting tool

Applicant:

Mitsubishi Materials Corporation, Tokyo, JP;

Inventors:

Shinichi Shikada, Anpachi-gun, JP;

Akimitsu Tominaga, Akashi, JP;

Hideaki Takashima, Naka-gun, JP;

Assignee:

MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;

Attorney:

Leason Ellis LLP

Primary Examiner:

Pegah Parvini

Int. Cl.
CPC ...
C23C 16/27 (2006.01); B23B 27/20 (2006.01); B23C 5/16 (2006.01); B23B 27/14 (2006.01); B23B 51/00 (2006.01); C01B 32/949 (2017.01);
U.S. Cl.
CPC ...
C23C 16/27 (2013.01); B23B 27/148 (2013.01); B23B 27/20 (2013.01); B23B 51/00 (2013.01); B23C 5/16 (2013.01); C01B 32/949 (2017.08);
Abstract

In this diamond-coated cemented carbide cutting tool, (1) an average particle size of WC particles is 0.5 to 0.9 μm, (2) (R) being 0.5 to 1.0 μm, a maximum distance between the concave and convex (Δ) is 0.5 to 1.5 μm, a length (Y) is 0.5 to 2.0 μm, (3) a sum of areas of WC particles, which satisfies (L) being 0.4 to 0.8 μm, (L) being 0.2 to 0.4 μm, and (L)/(L) being 1.5 to 2.5, is 70 area % or more, (4) an average grain size of diamond crystals in a region of 0.5 to 1.5 μm from the body interface is 0.1 to 0.3 μm, and (5) columnar crystals satisfying at least one of: a ratio of crystals, which has a growth direction shifted in 10 degrees or less from the diamond film thickness direction, being 90% or more; or an orientation ratio of <110> being 30 to 70%.

Find Patent Forward Citations

Shikada, Shinichi. (2020). Diamond-coated cemented carbide cutting tool (U.S. Patent No. 10745802). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10745802

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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