Abstract: An electric double layer capacitor comprises an electrode, a current collector, an electrolyte, a separator, a concave-shaped container for accommodating them, and a sealing plate for sealing an opening part of the container, wherein the sealing plate is fitted inside the container.

Abstract: A dielectric ceramic composition obtained by firing a mixture containing a glass component and a dielectric component represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0?a?20 mol %, 0?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %). The dielectric component is prepared by calcining a raw material. The glass component contains at least a bismuth glass. After the firing, a ratio (second phase/first phase) in X-ray diffraction peak intensity of the second phase containing the rare-earth element to the first phase having a perovskite structure, as a main phase, does not exceed 20%.

Abstract: A dielectric ceramic composition containing a dielectric component represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from rare-earth elements; and a, b, c and d satisfy 0?a?20 mol %, 0 ?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %). The composition, after being fired, shows the presence of a main phase having a perovskite structure and an acicular phase containing a rare-earth element.

Abstract: In a composite device of the laminate type having a laminate structure of a composite ceramic layer and a dielectric ceramic layer, the composite ceramic layer including a layer portion having the same composition as the dielectric ceramic layer and a plurality of particle portions formed on the surface of the layer portion. The particle portions are made from magnetic ceramic material. This prevents the ceramic layers of the device from cracking and separating when fired.

Abstract: A solid electrolytic capacitor element includes a first oxide layer formed on an anode, a second oxide layer formed on the first oxide layer, and a cathode formed on the second oxide layer. The first oxide layer includes Nb2O5 and the second oxide layer includes NbOx (1?x?2).

Abstract: A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu; Fe; and O; and sintering said blended powder at a temperature lower than 1000° C.

Abstract: A dielectric ceramic composition containing a dielectric material and a glass, characterized in that the dielectric material is represented by the compositional formula a·Li2O-b·(CaO1-x—SrOx)-c·R2O3-d·TiO2 (wherein x satisfies 0?x<1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0?a?20 mol %, 0?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %.) and the glass contains at least 30 % by weight of Bi2O3.

Abstract: A shield cover for an engine is provided to shield electric parts, in an engine wherein an engine body includes a crankcase having a plurality of cylinder bores. An intake chamber common to all of the cylinder bores is spaced away from the crankcase. The shield cover is made in one piece, making it possible to reduce the number of parts and also of the cost, and to achieve a generally compact configuration of the engine. A plurality of electric parts 47L, 47R, 62L, 62R, 64 are disposed around an intake plenum 49, and the plural electric parts 47L, 47R, 62L, 62R, 64 are covered with a shield cover 67 attached to the engine body 12 in such a manner as to cover at least part of the intake plenum 49.

Abstract: A dielectric ceramic composition containing crystalline glass, amorphous glass and a ceramic filler, characterized in that a softening point of said crystalline glass is higher than a softening point of said amorphous glass and is 900° C. or lower, and 27% by weight or higher of the crystalline glass and less than 20% by weight of the amorphous glass are contained in the ceramic composition and the total content of the crystalline glass and the amorphous glass is 60% by weight or lower, and 40% by weight or higher of the ceramic filler is contained in the ceramic composition.

Abstract: A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the first magnetic material is different from that of the second magnetic material. The first and second magnetic particles are mixed so that, at a frequency of an intersecting point between a first curve representing a frequency characteristic of a real part of a complex magnetic permeability of the first magnetic material and a second curve representing a frequency characteristic of a real part of a complex magnetic permeability of the second magnetic material, a value of a real part of a complex magnetic permeability of the composite magnetic material is larger than a value of the intersecting point.

Abstract: A dielectric ceramic composition containing a dielectric component represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from rare-earth elements; and a, b, c and d satisfy 0?a?20 mol %, 0 ?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %). The composition, after being fired, shows the presence of a main phase having a perovskite structure and an acicular phase containing a rare-earth element.

Abstract: A dielectric ceramic composition obtained by firing a mixture containing a glass component and a dielectric component represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0?a?20 mol %, 0?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %). The dielectric component is prepared by calcining a raw material. The glass component contains at least a bismuth glass. After the firing, a ratio (second phase/first phase) in X-ray diffraction peak intensity of the second phase containing the rare-earth element to the first phase having a perovskite structure, as a main phase, does not exceed 20%.

Abstract: A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the first magnetic material is different from that of the second magnetic material. The first and second magnetic particles are mixed so that, at a frequency of an intersecting point between a first curve representing a frequency characteristic of a real part of a complex magnetic permeability of the first magnetic material and a second curve representing a frequency characteristic of a real part of a complex magnetic permeability of the second magnetic material, a value of a real part of a complex magnetic permeability of the composite magnetic material is larger than a value of the intersecting point.

Abstract: A dielectric ceramic composition containing a dielectric material and a glass, characterized in that the dielectric material is represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0?a?20 mol %, 0?b?45 mol %, 0<c?20 mol %, 40?d?80 mol % and a+b+c+d=100 mol %.) and the glass contains at least 30 % by weight of Bi2O3.

Abstract: A dielectric ceramic composition characterized as containing a dielectric material which contains a dielectric composition represented by the compositional formula a.Li2O-b.(CaO1-x—SrOx)-c.R2O3-d.TiO2 (wherein x satisfies 0?x<1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0?a?20 mol %, 0?b?45 mol %, 0<c?20 mol % and 40?d?80 mol %) and at least one of oxides of Group 4 and Group 14 metallic elements of the Periodic Table.

Abstract: A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the first magnetic material is different from that of the second magnetic material. The first and second magnetic particles are mixed so that, at a frequency of an intersecting point between a first curve representing a frequency characteristic of a real part of a complex magnetic permeability of the first magnetic material and a second curve representing a frequency characteristic of a real part of a complex magnetic permeability of the second magnetic material, a value of a real part of a complex magnetic permeability of the composite magnetic material is larger than a value of the intersecting point.

Abstract: A dielectric ceramic composition containing crystalline glass, amorphous glass and a ceramic filler, characterized in that a softening point of said crystalline glass is higher than a softening point of said amorphous glass and is 900° C. or lower, and 27% by weight or higher of the crystalline glass and less than 20% by weight of the amorphous glass are contained in the ceramic composition and the total content of the crystalline glass and the amorphous glass is 60% by weight or lower, and 40% by weight or higher of the ceramic filler is contained in the ceramic composition.

Abstract: In a composite device having a laminate structure of a magnetic body ceramic layer 1 and a dielectric ceramic layer 2, an intermediate layer 3 is interposed between the ceramic layers 1 and 2. The intermediate layer 3 varies in composition in the direction of thickness thereof and exhibits substantially the same shrinkage as the magnetic body ceramic layer 1 at a joint thereof with this layer 1 when fired and substantially the same shrinkage as the dielectric ceramic layer 2 at a joint thereof with the layer 2 when fired, whereby the ceramic layers can be prevented from cracking or separating during firing.

Abstract: A YIG film formed on a GGG substrate is separated by a stepwise groove for preparing YIG films having different intervals between end surfaces, and two YIG films resonating magnetostatic waves between the end surfaces having different intervals are coupled with each other thereby forming a resonator.

Abstract: A shield cover for an engine is provided to shield electric parts, in an engine wherein an engine body includes a crankcase having a plurality of cylinder bores. An intake chamber common to all of the cylinder bores is spaced away from the crankcase. The shield cover is made in one piece, making it possible to reduce the number of parts and also of the cost, and to achieve a generally compact configuration of the engine. A plurality of electric parts 47L, 47R, 62L, 62R, 64 are disposed around an intake plenum 49, and the plural electric parts 47L, 47R, 62L, 62R, 64 are covered with a shield cover 67 attached to the engine body 12 in such a manner as to cover at least part of the intake plenum 49.