US Patent 7838075 Surface strengthening method
Patent 7838075 was granted and assigned to Jatco on November, 2010 by the United States Patent and Trademark Office.
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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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Patent Inventor Names
Fumiya Yakabe0
Masao Kumagai0
Yoshio Jimbo0
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US Patent 07838075 Surface strengthening method US Patent 7838075 Surface strengthening method
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Patent Number
078380750
Patent Number
78380750
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Current Assignee
Patent Jurisdiction
Patent Number
078380750
Date of Patent
November 23, 2010
0Patent Application Number
114805840
Date Filed
July 5, 2006
0Official Website
Patent Primary Examiner
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US Patent 07838075 Surface strengthening method
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07838075
Date of patent
November 23, 2010
Patent application number
11480584
Date Filed
July 5, 2006
Patent primary examiner
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