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:
Oct. 12, 2004
Filed:
Jun. 12, 2002
Applicant:
Inventor:
Keisuke Ban, Nagano-Ken, JP;
Assignee:
Nissin Kogyo Co., Ltd., Nagano-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 2/700 ; B22D 2/718 ;
U.S. Cl.
CPC ...
B22D 2/700 ; B22D 2/718 ;
Abstract
In a reduction casting method in which casting is performed while an oxide film formed on a surface of the molten metal is reduced, after an inside of a cavity of a molding die is allowed to be in a non-oxidizing atmosphere, a reducing substance having a stronger reducing property than a metal of the molten metal has is allowed to act on the molten metal whereupon casting is performed while the oxide film formed on the surface of the molten metal is reduced.