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:
Aug. 25, 2009
Filed:
Mar. 21, 2006
Hideki Nishino, Takatsuki, JP;
Kiyotaka Tanimoto, Nagaokakyo, JP;
Taishii Iwanaga, Nagaokakyo, JP;
Shinichi Kuroshima, Ibaraki, JP;
Yoshiaki Igarashi, Ikoma, JP;
Hideki Nishino, Takatsuki, JP;
Kiyotaka Tanimoto, Nagaokakyo, JP;
Taishii Iwanaga, Nagaokakyo, JP;
Shinichi Kuroshima, Ibaraki, JP;
Yoshiaki Igarashi, Ikoma, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A three-phase DC brushless motor and coil winding method provide a coil winding enabling consistent starting with PWM sensorless driving by suppressing the DC offset component of the induced voltage resulting from an imbalance in the motor coil windings. The method of winding the armature winding of the three-phase DC brushless motor renders the difference in mutual inductance substantially zero.