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:
Apr. 18, 1995
Filed:
Apr. 28, 1994
Applicant:
Inventors:
Noritoshi Horie, Yokohama, JP;
Kimihiko Sato, Takasago, JP;
Koichi Kanda, Yokohama, JP;
Kazuhiro Mitamura, Yokohama, JP;
Keiichi Hamazaki, Yokohama, JP;
Takehiko Kori, Yokohama, JP;
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72358 ; 72370 ; 72462 ; 72467 ; 761071 ;
Abstract
A forging die has an inner cylinder of a hard material which is composed of 8-40 vol. % of a metal phase including Ni and Mo as major components and the remaining amount of a ceramic phase including Mo.sub.2 NiB.sub.2 and/or (Mo, W).sub.2 NiB.sub.2, and an outer cylinder of metal, wherein the outer periphery of the inner cylinder is in a state of interference fit to the outer cylinder.