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:
Nov. 05, 2013
Filed:
Jan. 19, 2012
Junnosuke Nakatsugawa, Hitachi, JP;
Yuji Enomoto, Hitachi, JP;
Hirooki Tokoi, Tokai, JP;
Hiroshi Morita, Mito, JP;
Norihisa Iwasaki, Hitachinaka, JP;
Junnosuke Nakatsugawa, Hitachi, JP;
Yuji Enomoto, Hitachi, JP;
Hirooki Tokoi, Tokai, JP;
Hiroshi Morita, Mito, JP;
Norihisa Iwasaki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic gear comprises a first permanent magnet field having a plurality of permanent magnet magnetic poles, a second permanent magnet field having a plurality of permanent magnet magnetic poles, number of poles of which magnet is different from that of the first permanent magnet field, and a modulating magnetic pole arranged between the first permanent magnet field and the second permanent magnet field and having a plurality of pole pieces to modulate the number of poles of the first and second permanent magnet fields. Non-magnetic bars are provided between the plurality of pole pieces. One ends of the non-magnetic bars are fixed to a first non-magnetic end holding member and the other ends of the non-magnetic bars are electrically insulated from and fixed to a second non-magnetic end holding member.