Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Keiji Kanao0
Tsunenobu Hori0
Date of Patent
April 26, 2005
0Patent Application Number
100979290
Date Filed
March 15, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Noble metallic tips, made of a Pt alloy or an Ir alloy, are fixed to electrode base materials. The electrode base materials are an alloy containing a chief element selected from the group consisting of Ni, Fe, and Co and a plurality of additive elements. At least two kinds of additive elements contained in this alloy have a standard free energy of formation smaller than that of the chief element.
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