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:
Jul. 06, 2010
Filed:
Jul. 18, 2007
Applicants:
Fumio Tajima, Hitachi, JP;
Masashi Kitamura, Mito, JP;
Yuji Enomoto, Hitachi, JP;
Yuji Nomoto, Atsugi, JP;
Kenya Takarai, Atsugi, JP;
Inventors:
Fumio Tajima, Hitachi, JP;
Masashi Kitamura, Mito, JP;
Yuji Enomoto, Hitachi, JP;
Yuji Nomoto, Atsugi, JP;
Kenya Takarai, Atsugi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 37/12 (2006.01); H02K 37/14 (2006.01); H02K 1/17 (2006.01); F04D 13/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pump is driven by a compact electric motor in which a coil is disposed in a ring form around and along a stator core which has a plurality of claw magnetic poles that extend alternately from both ends of one member of the stator core toward the end of the other member thereof. A stator core can be made from a compressed powder core by molding with resin, with the molded portion able to serve as a partition separating pump and motor units.