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.:
Date of Patent:
Feb. 15, 2011
Filed:
Feb. 01, 2007
Kenji Yamamoto, Kobe, JP;
Katsuhiro Matsukado, Kobe, JP;
Kenji Yamamoto, Kobe, JP;
Katsuhiro Matsukado, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
An amorphous carbon (DLC) film having excellent adhesion at high temperature is provided. An amorphous-carbon-based hard multilayer film, which is formed on a surface of a substrate, includes a base layer formed at a substrate side, a surface layer formed at a surface side, and a compositional gradient layer formed between the base layer and the surface layer, wherein the base layer includes a nitride or a carbo-nitride of an element M expressed by the following formula (1), the surface layer includes an amorphous carbon film containing C of 50 atomic percent or more, and the compositional gradient layer is a layer in which the element M and nitrogen are decreased, and carbon is increased from the base layer to the amorphous carbon film:MCN  (1),
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile