US Patent 7139046 Light guide device, electro-optical device, and electronic apparatus
Patent 7139046 was granted and assigned to Seiko Epson on November, 2006 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
September 5, 2002
Date of Patent
November 21, 2006
Patent Application Number
10235996
Patent Inventor Names
Yukiyoshi Katahira
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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