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:
Sep. 30, 2003
Filed:
Jun. 28, 2001
Naoya Hashimoto, Tokyo, JP;
Teruo Miyaoku, Tokyo, JP;
Shiro Hasegawa, Tokyo, JP;
Chiaki Sugano, Tokyo, JP;
Hiromasa Ozawa, Tokyo, JP;
Hirohisa Ohta, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electromagnetic device including an outer casing, a shaft rotatably supported by the outer casing, and a motor main body disposed inside the outer casing. The motor main body has a stator and a rotor. The stator has coils constructed by winding conducting wires onto conducting-wire spool portions of first and second bobbins. The coils are embedded in an outer molding, cores are disposed so as to cover the outer molding, and the rotor is secured to the shaft. The coils are constituted by first phase and second phase excitation coils formed by winding two of the conducting wires into unifilar windings on the conducting-wire spool portion of the first bobbin. Further, third phase and fourth phase excitation coils are formed by winding two of the conducting wires into unifilar windings on the conducting-wire spool portion of the second bobbin.