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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 10583494 B1

PDFFull Text
Date of Patent:
Mar. 10, 2020

Filed:

Sep. 14, 2018

Coated drill

Applicant:

Tungaloy Corporation, Fukushima, JP;

Inventor:

Takao Katagiri, Iwaki, JP;

Assignee:

TUNGALOY CORPORATION, Iwaki-shi, Fukushima, JP;

Attorney:

Studebaker & Brackett PC

Primary Examiner:

Seth Dumbris

Assistant Examiner:

Kim S Horger

Int. Cl.
CPC ...
B32B 9/00 (2006.01); B23B 27/14 (2006.01); C23C 14/06 (2006.01); C23C 14/32 (2006.01); C23C 16/32 (2006.01); C23C 28/00 (2006.01); C23C 30/00 (2006.01); C23C 14/02 (2006.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); C23C 14/024 (2013.01); C23C 14/0617 (2013.01); C23C 14/0641 (2013.01); C23C 14/325 (2013.01); C23C 16/325 (2013.01); C23C 28/00 (2013.01); C23C 28/044 (2013.01); C23C 28/42 (2013.01); C23C 30/005 (2013.01);
Abstract

A coated drill includes a substrate; a coating layer formed on the substrate, and a chisel edge portion and a margin portion. An alternating laminate structure of a first composite nitride layer including a compound having a composition represented by the formula (AlCr)N, where x satisfies 0.10≤x≤0.60 and a second composite nitride layer including a compound having a composition represented by the formula (TiSi)N, where, y satisfies 0.05≤y≤0.30 are in the chisel edge portion and the margin portion. An atomic ratio of the Cr element based on the total of the Al element and the Cr element in the first composite nitride layer is greater in the chisel edge portion than in the margin portion.

Find Patent Forward Citations

Katagiri, Takao. (2020). Coated drill (U.S. Patent No. 10583494). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10583494

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

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