The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Mar. 16, 2010
Masahiro Watanabe, Anjo, JP;
Masanori Furusawa, Anjo, JP;
Yoshihiro Kasuya, Anjo, JP;
Makita Corporation, Anjo-Shi, JP;
Abstract
It is an object of the invention to easily determine a currently-selected operation mode in a power tool which offers several operation modes. A representative electric hammer drillembodying a power tool according to the invention has a controllerfor at least controlling a driving motor. The controllerincludes a switch detecting circuitthat detects the on or off state of each of first and second switcheswhen power is on, a computing/driving sectionthat determines a current operation mode based on results of detection of the switch detecting circuit, and a motor control sectionand a drive circuitthat output a drive control signal to the driving motorwhen the switch in the off state is turned on after the computing/driving sectiondetermines the operation mode.