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:
May. 09, 2006
Filed:
Aug. 13, 2003
Kazumasa Ide, Chiyoda-ku, JP;
Kenji Miyata, Chiyoda-ku, JP;
Kazuo Shima, Chiyoda-ku, JP;
Masayuki Tani, Chiyoda-ku, JP;
Kazumasa Ide, Chiyoda-ku, JP;
Kenji Miyata, Chiyoda-ku, JP;
Kazuo Shima, Chiyoda-ku, JP;
Masayuki Tani, Chiyoda-ku, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
(Subject) To provide an electro-magnetic field analysis technique of an electric rotating machine that filters through a specific higher-harmonic at a specific portion. (Construction) The first electro-magnetic field analysis procedure of analyzing the electro-magnetic field in an analysis space based on the first boundary condition in terms of an electro-magnetic variable assigned to the first specific portion in the analysis space; a development procedureof developing the electro-magnetic variable at the second specific portion in the analytic space, obtained in the first electro-magnetic field analysis procedure, into each higher-harmonic component; the second boundary condition setting procedure of assigning an electro-magnetic variable in terms of at least one of the higher-harmonic components, developed from the above electro-magnetic variable, to the second specific portion as the second boundary condition; and a procedureof analyzing the electro-magnetic field of the analysis space based on the first and second boundary conditions are executed on a computer.