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:
Sep. 01, 1992
Filed:
Jun. 18, 1991
Applicant:
Inventors:
Tadahiko Watanabe, Tosu, JP;
Kazuhisa Shobu, Tosu, JP;
Assignee:
Agency of Industrial Science and Technology, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 87 ; 501 96 ; 501103 ;
Abstract
Metallic boride-based ceramics having mechanical properties suited for use in extensive applications as abrasion-resistant and cutting tools are prepared by sintering a mixture essentially consisting of 20 to 88% by weight of one or more metallic borides and 10 to 70% by weight of a powder of zirconium oxide, with 2 to 70% by weight of one or more cubic nitrogen carbides selected from the group of Ti(C, N) and Zr(C, N).