Sankyo Kasei Co., Ltd.

Sumitomo Electric Industries, Limited

Matsushita Electric Industrial Co., Ltd.

Tetsuo Yumoto

Haruo Saen

Keiichi Kojima

Tatsuo Matsuda

Kenichi Urushibata

Norio Yoshizawa

Kiyoto Sugawara

Tooru Kanno

Hiroshi Hatase

Syusaku Kawasaki

Katsuya Saito

Yuichi Saito

A molding pin for a metal die is prevented from breaking, solder is surely deposited, and thus, a circuit pitch can be reduced to the limit. On the front plane of a circuit board, prescribed circuit patterns made of a conductive material are formed, and on the rear plane, prescribed circuit patterns are also formed. On the circuit board, a through hole is formed to carry electricity between the circuit patterns on both planes. The inner shape of the through hole is narrow in a direction between the adjacent circuit patterns and wide in a circuit extending direction.

Method for manufacturing a three dimensional circuit board

A molded circuit component for connecting to lead wires includes body and a protective cover. The body includes a partition wall area having a plurality of housing grooves, partition walls, body notches, positioning projections and fastening pin reception apertures. The protective cover includes a plurality of cover notches, recesses and fastening pins to correspond respectively with the body notches, positioning projections and fastening pin reception apertures. Metal lines having connection terminals on their ends are embedded in the housing grooves. Lead wires are positioned in the grooves so that the conductors of the lead wires are placed on, and attached to, the connection terminals. The protective cover is then attached to the body.

Molded circuit component unit for connecting lead wires

A molded electrical connector for connecting electrical conductors comprises a molding section in which a plurality of metallic circuits are arranged in parallel with one another at predetermined intervals and are fixedly molded with resin such that first end portions of the metallic circiuts are exposed as connecting terminals. The molded electrical connector further comprises a connecting section which comprises the connecting terminals. The connecting section is molded with resin simultaneously when the molding section is formed. Electrical conductors are placed on the connecting terminals of the metallic circuits and welded together.

Moulded electrical connector and method for manufacturing same

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Tokyo, Japan

Tetsuo Yumoto