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:
Dec. 19, 2006
Filed:
Sep. 03, 2002
Kazuo Asaka, Matsudo, JP;
Tomoaki Arakawa, Souka, JP;
Tsuyoshi Kagaya, Kashiwa, JP;
Satoru Shinzaki, Wako, JP;
Hiromitsu Sato, Wako, JP;
Kenji Fukuda, Wako, JP;
Hirohisa Ogawa, Wako, JP;
Tatsuro Horie, Wako, JP;
Akihiro Okamura, Wako, JP;
Katsuaki Sato, Wako, JP;
Toshiyasu Komatsu, Wako, JP;
Youichi Nakahara, Wako, JP;
Kazuo Asaka, Matsudo, JP;
Tomoaki Arakawa, Souka, JP;
Tsuyoshi Kagaya, Kashiwa, JP;
Satoru Shinzaki, Wako, JP;
Hiromitsu Sato, Wako, JP;
Kenji Fukuda, Wako, JP;
Hirohisa Ogawa, Wako, JP;
Tatsuro Horie, Wako, JP;
Akihiro Okamura, Wako, JP;
Katsuaki Sato, Wako, JP;
Toshiyasu Komatsu, Wako, JP;
Youichi Nakahara, Wako, JP;
Hitachi Powdered Metals Co., Ltd., Chiba, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A permanent magnet type rotor comprises an inner memberhaving an outer ring portion; an approximately annular outer memberhaving soft magnetism and an inner circumference contacting with an outer circumference of the outer ring portion; and plural permanent magnetsdisposed at equal intervals on the outer circumference of the outer member toward the circumferential direction. At least one of the inner memberand the outer memberis made from a sintered material, and the inner memberand the outer memberare mutually sintered and bonded. Thickness and weight of a dynamotor itself can be reduced and high output and high efficiency can be achieved.