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:
Jan. 13, 2015
Filed:
Nov. 12, 2009
Hiroaki Sugita, Toyokawa, JP;
Takamasa Suzuki, Toyokawa, JP;
Hiroaki Sugita, Toyokawa, JP;
Takamasa Suzuki, Toyokawa, JP;
OSG Corporation, Toyokawa-shi, JP;
Abstract
A hard film excellent in abrasion resistance and heat resistance includes: a first film consisting of AlCr(SiC)αN, where α denotes one or more elements of groups IVa, Va, VIa (except Cr) of the periodic table, B, C, Si, and Y; a b, c, and d are atom ratios within ranges of 0.35≦a≦0.76, 0.12≦b≦0.43, 0.05≦c≦0.20, and 0≦d≦0.20, respectively; an atom ratio b/a of Cr to Al is within a range of 0.25≦b/a≦0.67; and a+b+c+d=1 is satisfied. The first film disposed on a top surface, the hard film having a total thickness Ttotal within a range of 0.5 μm to 15 μm with a thickness Tof the first film or, if another film portion having the same film components as the first film is included, a thickness including the film thickness Tand the another film portion accounting for 20% or more of the total thickness Ttotal.