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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 9034461 B1

PDFFull Text
Expired
Date of Patent:
May. 19, 2015

Filed:

Feb. 12, 2013

Hard film sliding part and method of manufacturing the sliding part

Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventor:

Itto Sugimoto, Hitachi, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Aaron Austin

Assistant Examiner:

Megha Mehta

Int. Cl.
CPC ...
B32B 3/30 (2006.01); B32B 7/02 (2006.01); B23B 3/30 (2006.01); C23C 14/35 (2006.01); C23C 14/02 (2006.01); C23C 14/06 (2006.01); C23C 14/34 (2006.01);
U.S. Cl.
CPC ...
B23B 3/30 (2013.01); C23C 14/35 (2013.01); C23C 14/027 (2013.01); C23C 14/0635 (2013.01); C23C 14/0664 (2013.01); C23C 14/345 (2013.01); C23C 14/352 (2013.01);
Abstract

Disclosed herein is a hard film containing boron and carbon, wherein the hard film includes a plurality of concave portions and a plurality of convex portions formed on a surface of the hard film, and wherein carbon concentration in the concave portion is higher than that in the convex portion and boron concentration in the convex portion is higher than that in the concave portion. Further, disclosed herein is a method of manufacturing a sliding part having a hard film containing boron and carbon disposed over a substrate; wherein the hard film is manufactured by using at least one of an unbalanced magnetron sputtering method or a high power pulsed magnetron sputtering method, both sputtering methods using a target containing at least one of elements of silicon, chromium, titanium, and tungsten and a boron carbide target.

Find Patent Forward Citations

Sugimoto, Itto. (2015). Hard film sliding part and method of manufacturing the sliding part (U.S. Patent No. 9034461). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9034461

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

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