Nippon Kinzoku Co., Ltd.

Tokyo Shibaura Denki Kabushiki Kaisha

Toshihiko Tsuji

Sumio Kobayashi

Ko Kumai

Koji Imai

Ryouji Sakai

Haruki Miyoshi

Riyouji Sakai

Kenji Fukuda

Tatsuji Nakamura

Takeo Maruyama

Shohei Sawada

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

A reactor comprising an annular iron core constituting a closed magnetic path and a conductor wound on the iron core. The iron core is formed of particles of iron or an iron-based magnetic material. Each particle is covered with an insulative oxide film which contains 0.3 to 0.8% of oxygen by weight based on the particle.

Reactor

A panel heater with a flat metal sheet of substantially even thickness of from 0.06 to 0.2 mm and having a mesh-like radiation section formed in the central portion of the sheet, the mesh-like radiation section being composed of a plurality of units of wave-like current passageways of uniform width of approximately 2 mm from one end to the other, arranged parallel to each other and connected to each other at the crests of the wave-like current passageways so that the combined width of the passageways at the crests is twice the uniform width. The panel heater also has a pair of heat resistant boards between which the metal sheet is sandwiched; and a frame assembly joining together the heat resistant boards.

Electric heater panel

Growing community of inventors

Tokyo, Japan

Toshihiko Tsuji