US Patent 7776453 Machine element and method for manufacturing thereof
Patent 7776453 was granted and assigned to NTN Corporation on August, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A hub ring and/or an outer ring constituting a bearing device for a wheel, which is formed of a steel which contains 0.45 to 0.70 mass % of C and at least one of V, Nb and Ti in a total amount of 0.3 mass % or less, wherein a micro structure of a part being not surface-hardening-treated contains a ferrite in 15 to 30 area % and contains a particulate ferrite.
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Patent Inventor Names
Isao Hirai0
Kazuhiko Yoshida0
Takayasu Takubo0
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US Patent 07776453 Machine element and method for manufacturing thereof US Patent 7776453 Machine element and method for manufacturing thereof
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Patent Number
077764530
Patent Number
77764530
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Official Website
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
077764530
Date of Patent
August 17, 2010
0Patent Application Number
105921120
Date Filed
March 3, 2005
0Official Website
Patent Primary Examiner
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US Patent 07776453 Machine element and method for manufacturing thereof
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07776453
Date of patent
August 17, 2010
Patent application number
10592112
Date Filed
March 3, 2005
Patent primary examiner
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