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. 26, 2010
Filed:
Apr. 21, 2004
Applicants:
Hideki Nakata, Katano, JP;
Mitsuo Ueda, Nishinomiya, JP;
Inventors:
Hideki Nakata, Katano, JP;
Mitsuo Ueda, Nishinomiya, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/00 (2006.01); H02P 7/00 (2006.01); H02P 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A motor controller () according to the invention comprises an inverter circuit () for driving a brushless motor () and a control unit for controlling the rotational speed of the brushless motor () by controlling the phase of the motor current of the brushless motor () through the inverter circuit ().