Nippon Kinzoku Co., Ltd.

Tokyo Shibaura Denki Kabushiki Kaisha

Ko Kumai

Sumio Kobayashi

Tadashi Ichiyama

Takashi Satoh

Toshihiko Tsuji

Koji Imai

Tatsuhiko Noda

A process for manufacturing amorphous alloy powders is provided, wherein, a high-speed fluid jet is blown against a flowing melt of an alloy which can be formed into amorphous powders, thereby powerizing the melt and rapidly cooling and solidifying the melt. Use is made of an action tube in which pressure is reduced and turbulent flow is caused so as to increase the cooling rate of the powderized alloy and to form particles of irregular shape. Further, the powderized alloy particles are forced to forcibly collide against a block to increase the cooling rate of the alloy and to form particles of irregular shape.

Process for manufacturing amorphous alloy powders

A semiconductor circuit comprising a reactor including a closed magnetic path core of a compression molding which is formed of a mixture of an insulating material and particles of magnetic substance and a conductor magnetically interlinking to the core, and a semiconductor element connected in series with the reactor.

Semiconductor circuit having a series-connected reactor

Growing community of inventors

Kamakura, Japan

Ko Kumai