US Patent 7640047 Test instrument, attachment, and concentration measuring apparatus
Patent 7640047 was granted and assigned to ARKRAY on December, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
September 6, 2002
0
Date of Patent
December 29, 2009
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Patent Application Number
10489397
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Patent Inventor Names
Yasuhide Kusaka
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Daisuke Matsumoto
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Tetsuya Sakata
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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