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:
Oct. 01, 2013
Filed:
Jul. 22, 2009
Masanori Sawahata, Hitachi, JP;
Kazuo Nishihama, Hitachi, JP;
Hiroyuki Mikami, Hitachinaka, JP;
Tetsuo Fujigaki, Hitachi, JP;
Motonobu Iizuka, Hitachi, JP;
Shuji Mizutani, Hitachinaka, JP;
Masanori Sawahata, Hitachi, JP;
Kazuo Nishihama, Hitachi, JP;
Hiroyuki Mikami, Hitachinaka, JP;
Tetsuo Fujigaki, Hitachi, JP;
Motonobu Iizuka, Hitachi, JP;
Shuji Mizutani, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A synchronous generatorincluding a rotor having a field winding placed in the slots thereof and a stator having an armature winding placed in the slots thereof, wherein the value of the number of slots per two poles in stator minus the number of slots per two poles in rotor is equal to or greater than +9, or equal to or smaller than −9.