Abstract: A method of manufacturing a resin molded electronic component using a first mold having a cavity with an open top surface and a second mold combined with the first mold on top includes the following steps: (A) inserting a element of the electronic component and a liquid resin precursor into the cavity of the first mold, the liquid resin precursor having viscosity of 10 Pa·s or lower at 40° C.; (B) arranging the second mold such that the element and the resin precursor are sandwiched after the step (A); and (C) pressing the element and the resin precursor between the first mold and the second mold, and curing the resin precursor by heat from the second mold after the step (B). A temperature of the second mold is set to be higher than that of the first mold.

Abstract: Natural fiber is beaten with a biaxial kneading machine. The beaten natural fiber is processed finely with a bead mill so as to allow the processed natural fiber to have a BET specific surface area not smaller than 1 m2/g. This method provides fine fiber in a short time to form a rigid paper component.

Abstract: A molded capacitor includes a capacitor-element assembly, a package covering the capacitor-element assembly, and a supporter embedded in the package. The capacitor-element assembly includes a capacitor element having a first electrode, and a busbar joined to the electrode of the capacitor element. The busbar has a terminal. The package is made of norbornene-based resin and covers the capacitor-element assembly while exposing the terminal of the busbar. The supporter has first and second end section and is made of heat-conductive insulating material. The first end section contacts the capacitor-element assembly. The second end section is exposed from the package. This molded capacitor has high heat resistance and a small, light-weighted body, and can be manufactured inexpensively.

Abstract: A metalized film capacitor includes a first dielectric film, a first metal thin-film electrode provided on a surface of the first dielectric film, a second dielectric film provided on the first metal thin-film electrode, and a second metal thin-film electrode provided on the second dielectric film, such that the second metal thin-film electrode faces the first metal thin-film electrode across the second dielectric film. The surface of the first dielectric film has a surface energy ranging from 25 mN/m to 40 mN/m. The metalized film capacitor exhibits high heat resistance and a preferable self-healing effect.

Abstract: A wiring board includes an insulating board having a top surface arranged to have an electronic component mounted thereto, a conductor pattern formed on the top surface of the insulating board, and a heat emitting layer made of heat-emitting material covering the conductor pattern. The heat-emitting material has an emissivity not less than 0.8 for an electromagnetic wave having a wavelength ?=0.002898/T at a temperature T ranging from 293K to 473K. This wiring board suppresses the temperature rise of the electronic component.

Abstract: A process for producing an aluminum electrode foil for a capacitor, which includes a first step of preparing an emulsion from a mixture including a first phase of a liquid resin or a resin solution obtained by dissolving a resin in a solvent, a second phase of a liquid that is incompatible with the first phase, and an emulsifier; a second step of coating the emulsion on a surface of an aluminum foil; a third step of removing the second phase to form a resin film having a plurality of pores on its surface; a fourth step of etching the aluminum foil having the resin film formed thereon; and a fifth step of removing the resin film after etching. The production process can form high-density etching pits with high accuracy.

Abstract: The present invention provides an electronic component which can reduce the size of a capacitor and the number of constitutional parts of the capacitor without using a case. The electronic component of the present invention includes a capacitor element, an outer package made of a norbornene resin covering the capacitor element, and external connection terminal portions electrically connected to the capacitor element and protruded from the outer package.

Abstract: In a case-molded capacitor, an electrode of a capacitor element is connected with a busbar having an electrode terminal for external connection. The capacitor element and the busbar are placed in a metal case having an upper surface opening and are resin molded. A thermally-conductive insulator layer is provided between the capacitor element and a bottom surface of the metal case, hence providing the case-molded capacitor with a heat resistance.

Abstract: A base layer is formed on the surface of metal plate, metal pipe, unbaked ceramic sheet, laminated ceramic green sheet, etc., the base layer causing a gelling reaction with inkjet-ink. The base layer improves ink acceptability for low viscosity inks such as inkjet-ink, and prevents oozing, draining, uneven thickness of an ink pattern and a resist pattern. Thus, the present invention enables to use an ink jet process for providing resist patterns for etching, etc., which has to fulfill stringent high precision requirements.

Abstract: A polarized electrode for use in an electrochemical capacitor, in which electrode includes a current collector made of a metal plain foil, an anchor coat layer formed at least on one of the surfaces of the current collector, and an electrode layer formed on either the anchor coat layer or the current collector. The anchor coat layer contains a conductive carbon and a binder. The conductive carbon is graphitized carbon black. The binder contains at least one selected from the group consisting of an ammonium salt of carboxymethylcellulose, a rubber polymer, polytetrafluoroethylene, polyvinyl alcohol, polyvinyl pyrrolidone, alternating copolymer of isobutylene-maleic anhydride. With this configuration, a polarized electrode can be made thinner, and an electrode layer can be formed directly on the anchor coat layer. Furthermore, it can ensure sufficient coupling strength between the current collector and the electrode layer, and increase the energy density and the power density realizing a reduced resistance.

Abstract: A polarized electrode for use in an electrochemical capacitor, in which electrode includes a current collector made of a metal plain foil, an anchor coat layer formed at least on one of the surfaces of the current collector, and an electrode layer formed on either the anchor coat layer or the current collector. The anchor coat layer contains a conductive carbon and a binder. The conductive carbon is graphitized carbon black. The binder contains at least one selected from the group consisting of an ammonium salt of carboxymethylcellulose, a rubber polymer, polytetrafluoroethylene, polyvinyl alcohol, polyvinyl pyrrolidone, alternating copolymer of isobutylene-maleic anhydride. With this configuration, a polarized electrode can be made thinner, and an electrode layer can be formed directly on the anchor coat layer. Furthermore, it can ensure sufficient coupling strength between the current collector and the electrode layer, and increase the energy density and the power density realizing a reduced resistance.

Abstract: A process for producing an aluminum electrode foil for a capacitor, which includes a first step of preparing an emulsion from a mixture including a first phase of a liquid resin or a resin solution obtained by dissolving a resin in a solvent, a second phase of a liquid that is incompatible with the first phase, and an emulsifier; a second step of coating the emulsion on a surface of an aluminum foil; a third step of removing the second phase to form a resin film having a plurality of pores on its surface; a fourth step of etching the aluminum foil having the resin film formed thereon; and a fifth step of removing the resin film after etching. The production process can form high-density etching pits with high accuracy.

Abstract: A conductive paste having excellent printing properties, which can be used for manufacturing heat-resistant conductors and resistive elements, is described. Such a conductive paste can be obtained by preparing as a binder a polyimide precursor whose weight average degree of polymerization (n) ranges from 5 to 20, and mixing it with a solvent and a conductive powder. The polyimide precursor preferably is included in the range from 50 to 80 weight parts to 100 weight parts of the solvent. A polar solvent, or a mixed solvent including a polar solvent and a nonpolar solvent can be used. A preferable mixed solvent is a mixture of N-methyl-2-pyrrolidone and diethylene glycol dimethyl ether, in which the mixing volume ratio is preferably ranging from 2:8 to 9:1, more preferably, 2:8 to 3:7.

Abstract: The present invention provides a thin multilayer magnetic recording medium having improved electromagnetic conversion property and durability, comprising coating layers of a lower non-magnetic layer and an upper magnetic layer. The non-magnetic layer of this magnetic recording medium comprises a non-magnetic needle body having an average major axis length of 0.25 to 1.0 .mu.m and an average minor axis length of 0.005 to 0.0151 .mu.m, a first binding resin having a glass transition temperature (Tg.sub.1) of 30 to 50.degree. C., and fatty acid ester. The content of the first binding resin is 15 to 30 wt % with respect to the non-magnetic needle body. The content of the fatty acid ester is 2 to 15 wt % with respect to the first binding resin. The magnetic layer having a dry thickness of 0.5 .mu.m or less comprises ferromagnetic powder and a second binding resin having a glass transition temperature (Tg.sub.2) of 40 to 70.degree. C. Tg.sub.1 is at least 5.degree. C. lower than Tg.sub.

Abstract: A coating film of a double-layer structure for a recording medium is formed by providing a non-magnetic buffer layer just beneath a magnetic recording layer composed of magnetic hexagonal platelet ferrite particles, wherein the thickness of the magnetic recording layer is 0.1-0.6 .mu.m and the ratio of thickness of the buffer layer to that of the magnetic recording layer is 1:1 to 4:1. This coating film makes it possible to realize the excellent medium surface characteristics that could not be obtained with the conventional techniques and to obtain a high recording density excelling those of the conventional in-plane longitudinal recording media.

Abstract: In the magnetic recording medium, the spherical particles are added in the surface magnetic layer of the magnetic film having multilayer configuration (structure). And the spherical particles have a diameter in the range of from 0.5 to 1.5 times as large as the thickness of surface magnetic layer, and the amount of the spherical particles is in the range of from 0.1 parts to 1 part per 100 parts by weight of magnetic powder included in the surface magnetic layer. Fine studs are formed on the surface of the surface magnetic layer, and it results in both small surface roughness and low coefficient of friction.

Abstract: In a magnetic recording medium with a back coat layer including polyurethane having a Tg (glass-transition temperature) below room temperature, isocyanate hardener, carbon powder and inorganic abrasive pigment are formed on a face of a non-magnetic substrate opposite a face covered by a magnetic recording film. Using this back coat layer, improved post contact characteristics and the like are obtained and smooth running conditions under small tensions are realized. Further, the magnetic recording medium causes only a small amount of head wear, and the medium has improved wear resistance.

Abstract: A magnetic coating composition prepared by a method comprising a wetting step for wetting powder materials including a magnetic powder with a small amount of a solvent in a kneading machine having an agitation means in a closed container, a first kneading step comprising adding an amount of a binder resin and an amount of a solvent to a mixture from the wetting step and mixing and kneading it, a second kneading step comprising continuously adding the solvent till a consumed power of a kneading apparatus reaches maximum, a third kneading step comprising stopping the addition of the solvent at the maximum consumed power and further kneading the mixture, and a dilution step comprising gradually adding the solvent to the mixture while applying shear force, in which composition, the magnetic powder is highly dispersed and which provides a coating type magnetic recording medium having good properties.

Abstract: In the magnetic recording medium, the back coat layer includes the spherical particles having a diameter in the range of from 0.6 .mu.m to 1.2 .mu.m, and the amount of spherical particles in the back coat layer is in the range of from 0.05 weight % to 0.5 weight %. Fine studs are formed on the surface of the back coat layer, and it results in low coefficient friction of the back coat layer. In order to increase the binding power between the spherical particles and the binder resin(s), and to give good sliding characteristic to the back coat layer, a surface treatment is made on the spherical particles by using a silane group coupling agent, a titanate group coupling agent and/or a fatty acid having at least 12 carbon atoms.

Abstract: A magnetic recording medium characterized in that a magnetic layer composed of the combination of oleic acid and ester, whereby it is better in the lubricating characteristics of the magnetic layer and in the abrasion resisting property of the magnetic layer, and superior in the durability in a wide temperature range.