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:
Jul. 05, 2016
Filed:
Jun. 06, 2011
Ai Nakayama, Hitachinaka, JP;
Toshihiko Tachibana, Hitachinaka, JP;
Yasuo Etou, Hitachinaka, JP;
Miyoji Onose, Hitachinaka, JP;
Hiroshi Yamaguchi, Hitachinaka, JP;
Ai Nakayama, Hitachinaka, JP;
Toshihiko Tachibana, Hitachinaka, JP;
Yasuo Etou, Hitachinaka, JP;
Miyoji Onose, Hitachinaka, JP;
Hiroshi Yamaguchi, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a power tool that can be used at a position away from the external power source. The power tool includes a housing, a motor, an end tool, a battery pack, and an inverter. The housing has an upper side portion and a lower side portion. The motor is supported by the housing and driven by alternate-current power. The end tool is supported by the housing and rotatably driven by the motor. The battery pack outputs direct-current voltage. The inverter is disposed on the upper side portion and at a position higher than the motor and configured to convert the direct-current voltage outputted from the battery pack into alternate-current voltage and to supply the motor with alternate-current power.