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:
Mar. 12, 2019
Filed:
Nov. 26, 2013
Mei Wang, Toyokawa, JP;
Masatoshi Sakurai, Toyokawa, JP;
Yuji Sutou, Sendai, JP;
Junichi Koike, Sendai, JP;
Mei Wang, Toyokawa, JP;
Masatoshi Sakurai, Toyokawa, JP;
Yuji Sutou, Sendai, JP;
Junichi Koike, Sendai, JP;
OSG CORPORATION, Toyokawa, JP;
NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY, Sendai, JP;
Abstract
A hard lubrication film, with which a surface of a base material is coated, has two or more alternately laminated layers that are one or more A-layers made of (CrMoWVB)CNand one or more B-layers made of (CrMoWVB)CNO. Atom ratios a, b, c, d, e=1−a−b−c−d, x+y, and y related to A-layers satisfy 0.2≤a≤0.7, 0.05≤b≤0.6, 0≤c≤0.3, 0≤d≤0.05, 0≤e≤0.05, 0.3≤x+y≤0.6, and 0≤y≤0.6, respectively. Atom ratios a, b, c, d, e=1−a−b−c−d, x, y, z, and x+y+z related to B-layers satisfy 0.2≤a≤0.7, 0.05≤b≤0.6, 0≤c≤0.3, 0≤d≤0.05, 0≤e≤0.05, 0≤x≤0.6, 0≤y≤0.6, 0<z≤0.6, and 0.3≤x+y+z≤0.6, respectively. Each A-layer has a film thickness within a range of 2 nm or more to 1000 nm or less, each B-layer has a film thickness within a range of 2 nm or more to 500 nm or less, and wherein the hard lubrication film has a total film thickness within a range of 0.1 μm or more to 10.0 μm or less.