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. 18, 2001
Filed:
Aug. 15, 2000
Applicant:
Inventors:
Yoshihiro Nakai, Osaka, JP;
Hitoshi Kishida, Osaka, JP;
Naoyuki Ookubo, Osaka, JP;
Kazuhiro Nanjo, Osaka, JP;
Yasuo Murayoshi, Osaka, JP;
Masatada Numano, Osaka, JP;
Yasuyuki Otsuka, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 1/00 ;
U.S. Cl.
CPC ...
B23H 1/00 ;
Abstract
The present wire electrode for wire electro-discharge machining includes a core and a plurality of coating layers covering the outer peripheral surface of the core. The core and the plurality of coating layers are formed of different materials, and each of coating layers is made of a metal or a metal alloy including the metal selected from the group consisting of Cu, Sn, Ag, Al, Zn, Cs, Se, Te, Mg, Bi, Ti, P, In, Cr, and Fe.