Honda Giken Kogyo Kabushiki Kaisha

Hitachi Powdered Metals Co., Ltd.

Youichi Nakahara

Yuji Yasui

Hiromitsu Sato

Kazuo Asaka

Kenji Fukuda

Masamitsu Shiono

Satoru Shinzaki

Katsuaki Sato

Tatsuro Horie

Kazuo Okada

Akihiro Okamura

Haruyuki Iwasaki

Tsuyoshi Kagaya

Hirohisa Ogawa

Toshiyasu Komatsu

Tomoaki Arakawa

Shungo Umeda

Hiroshi Kiyomoto

Isao Usukura

Kazunori Yamamoto

Manabu Nakayama

Atsushi Kubo

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.

Permanent magnet type rotor and method of manufacturing the rotor

There are provided an artificial joint device that can realize an artificial limb enabling twisting motion without a drive source, and when with the drive source, reduce the size and costs of the device, and a parallel linkage that can realize the device. The linkage connects a foot portion and a mounting plate spaced from each other. A fixed link has one end fixed to the plate, and the other end connected to the foot portion via a ball joint, making the angle of the fixed link relative to the foot portion changeable in any direction. Expansible links extend between the foot portion and the plate in an expansible/contractible manner and each have opposite ends connected to the plate and the foot portion via respective upper and lower ball joints, making respective angles thereof relative to the foot portion and the plate changeable in any direction.

Parallel linkage and artificial joint device using the same

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Wako, Japan

Youichi Nakahara