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:
Jan. 03, 2017
Filed:
May. 20, 2013
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yasuo Ibuki, Shiga, JP;
Takafumi Ohba, Shiga, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/16 (2006.01); H02P 25/02 (2016.01); B26B 19/28 (2006.01); H02K 35/02 (2006.01); H02P 6/18 (2016.01);
U.S. Cl.
CPC ...
H02P 25/027 (2013.01); B26B 19/282 (2013.01); H02K 35/02 (2013.01); H02P 1/16 (2013.01); H02P 6/182 (2013.01); H02P 25/032 (2016.02);
Abstract
An electric razor is provided with a linear actuator having a stator which includes an electromagnet and also having a moving element which includes a permanent magnet. The electric razor is also provided with an amplitude control unit and a control/output unit, which detect the amplitude and speed of the moving element on the basis of an induced voltage occurring in the winding of the stator as the moving element reciprocates, compare the detected speed and a formerly detected speed, and, according to the difference representing the result of the comparison, change a method for controlling the moving element.