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:
Nov. 23, 2004
Filed:
Feb. 23, 2001
Applicant:
Inventors:
Yoshiharu Utsumi, Itami, JP;
Kazuhiko Oda, Itami, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 3/104 ; C23C 1/400 ;
U.S. Cl.
CPC ...
C10G 3/104 ; C23C 1/400 ;
Abstract
For machine parts, cutting tools and molds used under extremely high contact pressures, an amorphous carbon film is provided which has a sufficient adhesion to a substrate. The amorphous carbon covered member has an interlayer comprising at least one element selected from the group consisting of elements in the IVa, Va, VIa and IIIb groups and the IVb group except carbon in the periodic table, or a carbide of at least one element selected from the group, and an amorphous carbon film formed on the interlayer. The interlayer has a thickness of 0.5 nm or over and less than 10 nm.