Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinji Inazawa1
Kenji Miyazaki1
Koji Nitta1
Date of Patent
November 3, 2009
1Patent Application Number
105869231
Date Filed
September 26, 2005
1Patent Primary Examiner
Patent abstract
A structure which comprises tungsten as the main component and contains tungsten carbide, wherein the content of carbon is 0.1 mass % or higher based on the structure and the total content of cobalt, nickel, and iron is 3 mass % or lower based on the structure.
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