US Patent 7799438 Surface-coated cutting tool and method for producing same
Patent 7799438 was granted and assigned to Mitsubishi Materials on September, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A surface-coated cutting tool comprising a cutting tool body, and a hard coating layer formed on a surface of the cutting tool body. The hard coating layer comprises an upper layer comprising chromium boride and a lower layer comprising a composite nitride containing Ti and Al. The composite nitride preferably satisfies a composition formula: (Ti1-XAlX)N, where X is in a range from 0.40 to 0.75 by atomic ratio.
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Patent Inventor Names
Tsuyoshi Ogami0
Yusuke Tanaka0
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Official Website
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US Patent 07799438 Surface-coated cutting tool and method for producing same US Patent 7799438 Surface-coated cutting tool and method for producing same
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Patent Number
077994380
Patent Number
77994380
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077994380
Date of Patent
September 21, 2010
0Patent Application Number
115706920
Date Filed
December 28, 2004
0Official Website
Patent Primary Examiner
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US Patent 07799438 Surface-coated cutting tool and method for producing same
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07799438
Date of patent
September 21, 2010
Patent application number
11570692
Date Filed
December 28, 2004
Patent primary examiner
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