Nikko Company

Nichiyu Giken Kogyo Co., Ltd.

Motoharu Miyakoshi

Kiyoshi Mizushima

Mamoru Mohri

Hiroshi Sato

Shinzo Tsuji

Mamoru Mouri

Eiji Arai

Satoshi Nakamura

Masashi Watanabe

The exothermic instrument for firing an explosive comprises a circuit board 1 having a heat resist layer 6 on a substrate 11 and an exothermic resistance 4, which connects to a pair of through hole conductive electrodes 13 passing through the substrate 11, contacting with the explosive 19 on the heat resist layer 6, a pair of electrode pins 8, each one thereof is inserted into each one of the through hole conductive electrodes, and an insulator for holding the circuit board 1 through which the electrode pins 8 pass.

Exothermic instrument for firing explosive

A conductor paste for plugging a through-hole in a ceramic substrate which includes an electrically conductive powder having a metal powder as its main component, a swelling agent and a vehicle, and may also include adhesion improvers. After sintering the conductor paste, a conductor plug is created which will not fall out of the through-hole, is resistant to chipping during the leveling process and may be gas impermeable.

Conductor paste for plugging through-holes in ceramic circuit boards and

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Kaga, Japan

Motoharu Miyakoshi