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:
Jun. 29, 2010
Filed:
Sep. 25, 2007
Kenichi Inoue, Yasugi, JP;
Fumiaki Honda, Yasugi, JP;
Kenichi Inoue, Yasugi, JP;
Fumiaki Honda, Yasugi, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
There is provided a hard-material-coated member which is suitable as a long-life mold for plastic working of metals and which has a metal as base material and coating layers formed at least on its working plane by physical vapor deposition. At least three layers, i.e., a layer a) as the outermost layer, a layer c) just above the base material and a layer b) between layer a) and the layer c) are formed as coating layers. The hardness values of these layers in terms of hardness symbol HV 0.025 are as follows: (500+the hardness of the layer c)<(the hardness of the layer b); the thickness of the layer b) is smaller than that of the layer c); and the total thickness of the coating layers is 5 to 15 μm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile