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:
Apr. 24, 2001
Filed:
Apr. 15, 1998
Toshihiko Sakai, Yokohama, JP;
Yukinori Taneda, Yokohama, JP;
Hiromichi Hiramatsu, Yokohama, JP;
Noriaki Yamamoto, Yokohama, JP;
Yuji Enomoto, Yokohama, JP;
Takashi Ishigami, Fujisawa, JP;
Motoya Ito, Hitachinaka, JP;
Fumio Tajima, Ibaraki-ken, JP;
Masaharu Senoh, Narashino, JP;
Suetaro Shibukawa, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric motor, wherein a space factor of a coil in a stator or a rotor is enhanced, and which has a central part core comprising a plurality of laminated electromagnetic steel plates stamped out into a predetermined slot sectional shape and an end part core which is disposed on at least one end part toward a laminating direction of the central part core and a core shape of the end part core is different from the core shape of the central part core.