US Patent 7184631 Optical device
Patent 7184631 was granted and assigned to NGK Insulators on February, 2007 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
September 6, 2001
0
Date of Patent
February 27, 2007
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Patent Application Number
09948007
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Patent Inventor Names
Takenori Ichigi
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Masataka Yamashita
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Masatsugu Oshima
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Osamu Mitomi
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Jun Okumura
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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