Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masao Kumagai0
Yoshio Jimbo0
Fumiya Yakabe0
Date of Patent
November 23, 2010
0Patent Application Number
114805840
Date Filed
July 5, 2006
0Patent Primary Examiner
Patent abstract
A method for strengthening a surface of a metal member. The method includes the following steps in the sequence set forth: (a) coating the surface of the metal member with a carbon-based film having a thickness of not smaller than 0.2 μm; and (b) repeatedly applying a pressing force onto the surface of the film-coated metal member in a condition of maintaining a contact pressure of not lower than 2.5 GPa at the surface of the film-coated metal member.
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