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. 15, 1988
Filed:
Jun. 24, 1987
Applicant:
Inventors:
Noribumi Kikuchi, Ohmiya, JP;
Tetsuro Komatsu, Ohmiya, JP;
Hiroaki Yamasita, Ohmiya, JP;
Hironori Yoshimura, Ohmiya, JP;
Assignee:
Mitsubishi Kinzoku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
428552 ; 29DI / ; 75240 ; 75243 ; 76DI / ; 76DI / ; 125 39 ; 419 27 ; 428408 ; 428560 ; 428665 ; 428698 ; 4289088 ;
Abstract
A diamond-coated tungsten carbide-base sintered hard alloy material for inserts of cutting tools, which has greatly improved bond strength or degree of bonding of the diamond coating layer to the matrix and therefore is capable of exhibiting excellent cutting performance over a long period of time. The sintered hard alloy material comprises: