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. 19, 2004
Filed:
Mar. 21, 2002
Applicant:
Inventors:
Takatoshi Oshika, Naka-gun, JP;
Toshiaki Ueda, Naka-gun, JP;
Assignee:
Mitsubishi Materials Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C28C 1/630 ; B28P 1/528 ;
U.S. Cl.
CPC ...
C28C 1/630 ; B28P 1/528 ;
Abstract
A coated cemented carbide cutting tool member having excellent ability to prevent breakage and chipping around its cutting edge, exhibits high wear resistance in severe cutting operations comprises a hard sintered substrate and a hard coating layer deposited on the surface of said substrate, the hard coating layer comprises an alternated multi-layer structure having a total thickness of between 0.5 to 20 &mgr;m and comprising the first thin layer of titanium compounds and the second thin layer of hard oxide materials whose individual thickness is between 0.01 to 0.3 &mgr;m.