US Patent 7199642 Battery-power-operated circuit
Patent 7199642 was granted and assigned to Sony on April, 2007 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
July 23, 2003
Date of Patent
April 3, 2007
Patent Application Number
10625794
Patent Inventor Names
Keiji Shirato
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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