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:
Oct. 31, 2007
Masafumi Fujita, Yokohama, JP;
Tadashi Tokumasu, Tokyo, JP;
Yasuo Kabata, Yokohama, JP;
Masanori Arata, Yokohama, JP;
Mikio Kakiuchi, Yokohama, JP;
Susumu Nagano, Kawasaki, JP;
Masafumi Fujita, Yokohama, JP;
Tadashi Tokumasu, Tokyo, JP;
Yasuo Kabata, Yokohama, JP;
Masanori Arata, Yokohama, JP;
Mikio Kakiuchi, Yokohama, JP;
Susumu Nagano, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Sub core sections are arranged at the end portions and the center portion of a stator core, and strand conductors are twisted and transposed by 360 degrees continuously toward the extending direction of winding slot. The length corresponding to transposition pitch 180 degrees of the strand conductors of the stator core is set as one core unit area, the sub core sections including portions whose space factors are different are arranged such that the sum of voltages in the strands induced in the strand conductors in the odd-numbered core unit area from one end portion of the stator core offsets the sum of voltages in the strands induced in the strand conductors in the even-numbered core unit area from the end portion of the core.