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. 21, 2012
Filed:
Sep. 27, 2007
Ingrid Reineck, Segeltorp, SE;
Marianne Collin, Älvsjö, SE;
David Huy Trinh, Linköping, SE;
Hans Högberg, Linköping, SE;
Lars Hultman, Linköping, SE;
Ingrid Reineck, Segeltorp, SE;
Marianne Collin, Älvsjö, SE;
David Huy Trinh, Linköping, SE;
Hans Högberg, Linköping, SE;
Lars Hultman, Linköping, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, MeX+MeX+MeX+MeX . . . , where at least one of MeX and MeX is a metal oxide+metal oxide nano-composite layer composed of two components, wherein the layers MeX and MeX are different in composition or structure, the laminated multilayer layer has a compositional gradient, with regards to a concentration, in a direction from an outer surface of the coating towards the substrate, the gradient being such that a difference between an average concentration of an outermost portion of the multilayer and an average concentration of an innermost portion of the multilayer is at least about 5 at-% in absolute units.