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:
Dec. 17, 2002
Filed:
Aug. 24, 1999
Applicant:
Inventors:
Katsuaki Ogawa, Yono, JP;
Keiichi Kanemitsu, Yono, JP;
Assignee:
Nippon Piston Ring Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 9/26 ;
U.S. Cl.
CPC ...
F16J 9/26 ;
Abstract
An improved sliding member is provided that has a sliding surface and a deposition layer formed on the sliding surface utilizing an ion-plating method, wherein the deposition layer is composed mainly of chrome nitride, including CrN. The CrN of the chrome nitride has a preferred orientation of plane {111} and contains boron in an amount of not less than 0.05 and not more than 20 weight percent. The deposition layer further contains oxygen and/or carbon in an amount of not more than 15 weight percent. The improved sliding member exhibits excellent abrasion and scuff resistance and enhanced peeling resistance.