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:
Oct. 30, 2012
Filed:
Mar. 06, 2008
Noriko Uchiyama, Miura, JP;
Nobutaka Chiba, Yokohama, JP;
Noriko Uchiyama, Miura, JP;
Nobutaka Chiba, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A transition metal nitride obtained by nitriding a base material including an austenitic stainless steel having a Cr concentration of 25% or more includes a first layer (first nitrided layer) formed continuously on a base layer formed by the base material, having a stacked crystal structure of a nano-level including a nitride having a cubic crystal structure of MN type, and a nitride having a hexagonal crystal structure of MN type, and a second layer (second nitrided layer) formed continuously on the first layer, including a nitride having at least one kind of crystal structure out of hexagonal crystal structures of CrN, CrN, and MN type, and a cubic crystal structure of MN type, and being formed as a surface-nitriding-processed portion of the base material continuously in a depth direction from a surface of the base material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile