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:
Nov. 21, 2017
Filed:
Jan. 28, 2016
Applicant:
Makita Corporation, Anjo-shi, Aichi, JP;
Inventors:
Katsuhito Fujinami, Anjo, JP;
Kazuki Iyota, Anjo, JP;
Assignee:
MAKITA CORPORATION, Anjo-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25D 15/00 (2006.01); H02P 3/00 (2006.01); H02P 23/02 (2006.01); H02K 11/26 (2016.01); H02K 11/27 (2016.01); H02P 7/295 (2016.01);
U.S. Cl.
CPC ...
H02P 23/02 (2013.01); H02K 11/26 (2016.01); H02K 11/27 (2016.01); H02P 7/295 (2013.01);
Abstract
An electric working machine according to one aspect of the present disclosure includes a motor, a current detector, a voltage detector, and a load state determination unit. The current detector is configured to detect a current flowing through the motor during drive of the motor. The voltage detector is configured to detect an input voltage supplied to the motor during drive of the motor. The load state determination unit is configured to determine whether the motor is in a no-load operation state based on the detected current, the detected input voltage and an output voltage from an electric power source.