Multilayer lubrication coating film and internal combustion engine piston using the coating film

US8960072B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8960072-B2
Application numberUS-201113017689-A
CountryUS
Kind codeB2
Filing dateJan 31, 2011
Priority dateFeb 9, 2010
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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  2. Abstract

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Abstract

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A multilayer lubrication coating film is formed on the outer surface of an object to be coated. The multilayer lubrication coating film comprises a lower-layer coating film formed on an outer surface of the object to be coated, and an upper-layer coating film formed on a surface of the lower-layer coating film. The lower-layer coating film has a higher Vickers hardness than the Vickers hardness of the object to be coated.

First claim

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What is claimed is: 1. A multilayer lubrication coating film formed on an outer surface of an object to be coated, the coating film comprising: a lower-layer coating film formed on the outer surface of an object to be coated; and an upper-layer coating film formed directly on a surface of the lower-layer coating film, wherein the upper-layer coating film is formed using a composition made of 50 to 70 mass % of at least one of an epoxy resin and a polyamide-imide resin as bondi…

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What does patent US8960072B2 cover?
A multilayer lubrication coating film is formed on the outer surface of an object to be coated. The multilayer lubrication coating film comprises a lower-layer coating film formed on an outer surface of the object to be coated, and an upper-layer coating film formed on a surface of the lower-layer coating film. The lower-layer coating film has a higher Vickers hardness than the Vickers hardness…
Who is the assignee on this patent?
Suto Kenji, Tokubi Kota, Saito Tomonori, and 2 more
What technology area does this patent fall under?
Primary CPC classification F16J1/01. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).