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:
Feb. 22, 2005
Filed:
Oct. 25, 2002
Applicants:
Norio Yamamoto, Chigasaki, JP;
Katsuhiko Sakai, Chigasaki, JP;
Inventors:
Norio Yamamoto, Chigasaki, JP;
Katsuhiko Sakai, Chigasaki, JP;
Assignee:
Toho Titanium Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B009/22 ;
U.S. Cl.
CPC ...
Abstract
An electron beam melting method for a metallic material which is melted by an electron beam in a melting furnace is disclosed. The method comprises: locating an actual melting material and a pre-melting material in the melting furnace; forming a melted surface on the pre-melting material by an electron beam under a reduced pressure; and melting the actual melting material by the electron beam while maintaining the reduced pressure in the melting furnace.