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.

Date of Patent:
Dec. 02, 2003

Filed:

Sep. 24, 2001
Applicant:
Inventors:

Hao Liu, Toyokawa, JP;

Yoshihiko Murakami, Toyohashi, JP;

Hiroyuki Hanyu, Toyokawa, JP;

Assignee:

OSG Corporation, Toyokawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32J 9/00 ;
U.S. Cl.
CPC ...
B32J 9/00 ;
Abstract

A diamond-coated body including: a substrate formed of a cemented carbide; a diamond coating; and an interface layer interposed between the substrate and the diamond coating, wherein the interface layer consists of a solid solution including an aluminum nitride and a metal which belongs to one of groups IVa, Va and VIa of the periodic table. The interface layer is preferably provided by one of TiAlN, CrAlN and VAlN. The substrate is preferably formed of a super-fine particle cemented carbide.


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