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. 22, 1994
Filed:
Jun. 28, 1991
Applicant:
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428216 ; 428217 ; 428408 ; 428469 ; 428472 ; 428698 ;
Abstract
A protectively coated sliding member comprises a sliding member body, an anchor layer formed thereon and which consists of (a) a hydrocarbon or hydrocarbon-based plasma polymer film, (b) a diamond-like film, or (c) an ion-plating film of a metal or metallic compound, and a protective coating formed on the anchor layer and which consists of a hydrocarbon or hydrocarbon-based plasma polymer film in case where the anchor layer consists of (a), a diamond or diamond-like film in case of (b), or an ion-plating film of a metallic compound in case of (c). The protective coating is of greater hardness than the anchor layer.