Abstract: An ignition charge for an initiator provided with an igniting mechanism for setting aflame an ignition charge by the heat generated by an exothermic element connected via a pair of current conducting pins in response to an electric signal is a slurry ignition charge which is formed mainly of a mixture consisting of zirconium as a fuel component and potassium perchlorate as an oxidizing agent component. The ignition charge for the initiator contains nitrocellulose as a binder component in an extrapolated compounding ratio of 0.1% by weight or more and 0.5% by weight or less based on the total amount of zirconium and potassium perchlorate and isoamyl acetate as a solvent in an extrapolated compounding ratio of 12.5% by weight or more and 14.0% by weight or less based on the total amount of zirconium and potassium perchlorate. The ignition charge is spread on the exothermic element and dried. The ignition charge is for the initiator of a gas generator, particularly an electric gas generator.

Abstract: An ignition charge for an initiator provided with an igniting mechanism for setting aflame an ignition charge by the heat generated by an exothermic element connected via a pair of current conducting pins in response to an electric signal is a slurry ignition charge which is formed mainly of a mixture consisting of zirconium as a fuel component and potassium perchlorate as an oxidizing agent component. The ignition charge for the initiator contains nitrocellulose as a binder component in an extrapolated compounding ratio of 0.1% by weight or more and 0.5% by weight or less based on the total amount of zirconium and potassium perchlorate and isoamyl acetate as a solvent in an extrapolated compounding ratio of 12.5% by weight or more and 14.0% by weight or less based on the total amount of zirconium and potassium perchlorate. The ignition charge is spread on the exothermic element and dried. The ignition charge is for the initiator of a gas generator, particularly an electric gas generator.

Abstract: An electric ignition type initiator applies an electrical signal via a pair of electrical signal input portions to a resistance element connected across the electrical signal input portions to heat the resistance element to cause the heat from the resistance element to ignite an explosive charge and thereby operate a vehicle safety apparatus. The resistance element is formed by etching a film of nickel-chrome alloy provided on the top surface of a substrate. The first side of the resistance element extends in a straight line between the electrical signal input portions, and the second side is inclined from each of the electrical signal input portions so that the width between the first side and each incline on the second side decreases as distance from the respective electrical signal input portion increases. The resistance element has its minimum sectional area where the inclines meet.

Abstract: An electric ignition type gas generation apparatus for use in a vehicle crash safety system includes an ignition section that is ignited by an electric signal produced by the impact of a crash, and a gas generating section in which burning gas is generated by the ignition of the ignition section. The ignition section is formed on the base of the apparatus, and the gas generating section is disposed on the base over the ignition section.

Abstract: A composition for a reduction-reoxidation type semiconductive ceramic capcitor is disclosed which consists substantially of 100 mol % of a barium composite oxide consisting of BaTiO.sub.3 and BaZrO.sub.3 and having a BaZrO.sub.3 content in the range of 0 to 20 mol %, 0.3 to 3.0 mol % of Bi.sub.2 O.sub.3, and 0.1 to 8.5 mol % of at least one member selected from the group consisting of TiO.sub.2 and ZrO.sub.2 and further incorporates therein 0.001 to 1.00% by weight of at least one member selected from the group consisting of the oxides of Cr, Fe, Co, Zn, Cu, Al, Si, and Mg. This composition possesses a breakdown voltage of not less than 400 V, an insulation resistance of not less than 10.sup.9 .OMEGA., an electrostatic capacity of not less than 0.65 .mu.F/cm.sup.2 per unit surface area, and a magnitude, tan .delta., of less than 2.5%.

Abstract: A ceramic composition for a reduction-reoxidation type semiconductive capacitor, comprising (A) barium titanate or barium titanate and strontium titanate, (B) titanium oxide, and (C) at least one oxide selected from the group consisting of the oxides severally of La, Ce, Nb, Nd, Dy, Y, Sb, W, and Ta in a molar ratio of 100:0.01.about.15:0.01.about.10 and further comprising (D) 0.001 to 1% by weight, based on the total amount of the compounds, (A), (B), and (C), of at least one oxide selected from the group consisting of the oxides severally of Cu, Zn, Al, Mg, and Mo and exhibiting a breakdown voltage of not less than 900 V, and insulation resistance of not less than 10.sup.10 .OMEGA., an electrostatic capacity per unit surface area of not less than 0.06 .mu.F/cm.sup.2, and a low dielectric loss, tan .delta., of not more than 2.0%.