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. 22, 1987
Filed:
Nov. 05, 1986
Applicant:
Inventors:
Toru Degawa, Kurashiki, JP;
Kozo Fujiwara, Tamano, JP;
Akio Hashimoto, Takamatsu, JP;
Seiju Uchida, Tamano, JP;
Gen Okuyama, Tamano, JP;
Susumu Matsui, Tamano, JP;
Assignee:
Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C21B / ;
U.S. Cl.
CPC ...
420129 ; 75 84 ; 266280 ;
Abstract
A lanthanide-containing alloy is produced by retaining the melt of this alloy by the use of a container having the inner surface formed of a calcia-based refractory possessing a CaO content of not less than 90% by weight in a non-oxidizing atmosphere.