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:
Jun. 06, 1989
Filed:
Dec. 14, 1987
Applicant:
Inventors:
Masatada Araki, Handa, JP;
Yutaka Kuroyama, Chita, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
428552 ; 419 11 ; 419 13 ; 428408 ; 428621 ; 428627 ;
Abstract
A composite sintered compact consisting of a sintered body portion, which contains at least one of high density boron nitride and diamond, and a cermet or metal portion bonded to the sintered body portion through an amorphous metal interposed between the sintered body portion and the cermet or metal portion at their bonding area, has high hardness and strength, and further has excellent handleability, heat resistance and toughness during the whole processes ranging from its production to its consumption.