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.

Date of Patent:
Nov. 24, 2015

Filed:

Jul. 22, 2013
Applicant:

Hitachi Koki Co., Ltd., Tokyo, JP;

Inventors:

Kenichirou Yoshida, Hitachinaka, JP;

Hideyuki Tanimoto, Hitachinaka, JP;

Hayato Yamaguchi, Hitachinaka, JP;

Shinji Kuragano, Hitachinaka, JP;

Takuya Konnai, Hitachinaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 11/28 (2006.01); H02J 7/14 (2006.01); H02P 27/00 (2006.01); B25F 5/00 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02P 27/00 (2013.01); B25F 5/00 (2013.01); H02J 7/0047 (2013.01); H02J 7/0063 (2013.01); H02J 2007/005 (2013.01);
Abstract

A power tool includes a housing, an electric motor accommodated in the housing, a secondary battery that supplies electric power to the electric motor, a handle provided at the housing, a trigger switch provided at the handle for controlling electric power supply to the electric motor, a residual capacity display for displaying a residual capacity of the secondary battery, and a lock-release switch provided at the handle and configured to allow the trigger switch to be operable and to start displaying the residual capacity at the residual capacity display upon manipulation to the lock-release switch.


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