Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadahiko Kobayakawa0
Hitoshi Suzuki0
Tomoo Muramatsu0
Date of Patent
July 3, 2012
0Patent Application Number
125880810
Date Filed
October 2, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An electric power tool includes a tool body and a battery pack. A terminal voltage setting unit of the tool body sets a voltage of a body side terminal to a first voltage when a command to drive a drive portion of the tool body is issued by a switch of the tool body. A voltage changing unit of the battery pack changes a voltage of a battery side terminal from the first voltage to a second voltage when supply of electric power from the battery pack to the drive portion is permitted.
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