US Patent 7446993 Alumina sintered body
Patent 7446993 was granted and assigned to NGK Insulators on November, 2008 by the United States Patent and Trademark Office.
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Patent abstract
An alumina sintered body comprises an alumina substrate having a first main surface and a second main surface opposing each other, an embedded film electrode made of a metal and embedded in the alumina substrate at a depth HD of 0.4 mm or less from a first main surface SF1, and an embedded terminal formed of a metal, embedded in the alumina substrate nearer a second main surface SF2 side than the embedded electrode. The embedded terminal is in contact with the embedded electrode and a film thickness HE of the embedded electrode is 25 μm or less.
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US Patent 07446993 Alumina sintered body US Patent 7446993 Alumina sintered body
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Patent Number
0744699300
Patent Number
744699300
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074469930
Date of Patent
November 4, 2008
0Patent Application Number
116883320
Date Filed
March 20, 2007
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074469930
Date of Patent
November 4, 2008
0Patent Application Number
116883320
Date Filed
March 20, 2007
0Official Website
Patent Primary Examiner
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US Patent 07446993 Alumina sintered body
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07446993
Date of patent
November 4, 2008
Patent application number
11688332
Date Filed
March 20, 2007
Patent primary examiner
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