Abstract: A dielectric film formed on a porous valve metal body is contacted with an oxidizing agent and dried. Then, by contacting the dielectric film with a monomer solution for forming an electrolyte layer of electroconductive polymer, a electrolyte layer of a solid electrolytic capacitor is formed by an oxidative polymerization reaction. An oxidative polymerization retarding agent, which delays the oxidative polymerization reaction, is added to at least one of the solutions, an oxidant solution and a monomer solution. The oxidative polymerization retarding agent delays the oxidative polymerization reaction when it contacts with the oxidant and monomer. As a result, the permeation of the monomer for forming an electroconductive polymer layer into small pores increases, and the covering rate of the electroconductive polymer in small pores increases, which improves the capacitance appearance factor and the equivalent series resistance in high frequency region.

Abstract: The method for hot dip galvanizing comprises the steps of: dividing a plating vessel holding a molten metal into a plating tank and a dross removing tank; conducting hot dip galvanizing to a steel strip by immersing thereof in the molten metal bath; then transferring the molten metal bath from the plating tank to the dross removing tank; removing a dross from the molten metal bath in the dross removing tank; and recycling the molten metal bath from the dross removing tank to the plating tank through an opening located on the plating tank. The apparatus for galvanizing comprises a plating tank, a dross removing tank, a means to transfer the molten metal bath from the plating tank to the dross removing tank, and an opening located on the plating tank to recycle the molten metal bath from the dross removing tank to the plating tank.

Abstract: A turbo blood pump includes a housing 1 having a pump chamber 2, an inlet port 3, and an outlet port 4, an impeller 5 disposed rotatably in the pump chamber, an upper bearing 9 and a lower bearing 10 supporting the impeller rotatably, and a driving force transmitting unit for driving the impeller to rotate. The upper bearing is supported at a position in the pump chamber below the inlet port, so that a cross-sectional area of the pump chamber in a plane including an upper end of the upper bearing and being orthogonal to a shaft of the impeller is larger than a cross-sectional area of a flow path of the inlet port at a portion where the inlet port is coupled to the pump chamber, and thus obstruction with respect to blood flow by the upper bearing is of such a degree as to be permissible from a practical viewpoint, while an impeller is supported by upper and lower bearings. Thereby, the pump is less likely to cause problems of blood stagnation and thrombus formation.

Abstract: A turbo blood pump includes a housing, an impeller rotatably disposed in a pumping chamber, bearings for rotatably supporting the impeller, a rotor provided outside the housing and rotationally driven by a motor, driven magnets mounted on the impeller, and driving magnets mounted on the rotor. The driven magnets and the driving magnets face each other via a wall of the housing to form magnetic coupling. The driven magnets and the driving magnets are arranged so that a direction of the magnetic coupling inclines with respect to a rotation axis of the impeller. The pump ensures sufficiently strong magnetic coupling between an impeller and a rotor and effects reduced load on a lower bearing supporting the impeller and little risk of hemolysis and blood stagnation.

Abstract: The present invention provides an electrically conductive polymer layer of a solid electrolytic capacitor, the electrically conductive polymer layer coating a dielectric layer coating an anode with an anode lead which projects outwardly from the anode through the dielectric layer, and the electrically conductive polymer layer being separated by the dielectric layer from the anode lead, wherein the electrically conductive polymer layer has a thicker portion than a remaining portion thereof and the thicker portion extends at least in the vicinity of the anode lead, and the thicker portion is bounded with the remaining portion so that a sloped-boundary loop between the thicker portion and the remaining portion extends to be parallel to a flat plane vertical to a direction along which the anode lead projects through the dielectric layer, whereby the thicker portion continuously extends in a closer side to the anode lead than the remaining portion.

Abstract: A single row rotating-type eddy current braking apparatus for use with a rotor mounted on a powered shaft comprises a support ring, a plurality of magnets, a plurality of ferromagnetic switching plates, and a support body. The switching plates or magnets are capable of rotating with respect to each other to effect braking. The dimensions of the switching plates and angular displacement of the magnets and switching plates are controlled to minimize drag torque when in a non-braking state. The switching plates can be made to rotate and the bearing can be employed in combination with the rotating and stationary components to alleviate problems such as thermal expansion and wear. The apparatus also utilizes a pneumatic cylinder designed to rotate in the direction of the shaft rotation to achieve a braking state, and can employ a single rod double acting cylinder to switch between braking and non-braking states.

Abstract: Layout of a high-speed signal wiring on a power supply plane is checked and specified at an optimum position capable of minimizing a spurious electromagnetic radiation so as not to affect other wiring layers. When a high speed signal line which is an object to be checked exists on a power supply plane, a perpendicular distance between the high speed signal line and the plane which is nearest to the signal line is determined, and compared with a minimum required distance computed therefor in advance on the basis of its circuit specification of the high speed signal line. If the perpendicular distance determined does not exceed the minimum required distance computed, an appropriate message corresponding to the name of the high speed signal line is displayed.

Abstract: The check system comprises the steps of: computing the optimum position and the optimum capacitance value of the bulk capacitor on a wiring printed circuit board mounting an IC which is an object of checkup, using simple mathematical expressions; determining if an actual capacitance value and an actual position of the bulk capacitor tentatively designed are nearly equal to the optimum value and optimum position computed; determining if the tentatively designed capacitance value of the bulk capacitor exceeds a value of a total sum of capacitance values of decoupling capacitors multiplied by a predetermined constant; and if the optimum conditions are not satisfied, displaying appropriate instructions to modify the tentative design value and position of the bulk capacitor to coincide with the optimum value and position.

Abstract: A check system for a wiring structure of a printed circuit board for easily calculating an electric energy of a high-speed signal wiring on the printed circuit board and warning when the energy owned by the signal wiring is larger than a designated threshold value. The electric energy radiated from the high-speed signal wiring intended for checking is calculated by using a simple mathematical expression, and a display to identify the signal wiring is outputted when the electric energy owned by the signal wiring is larger than a certain designated threshold value, and also an instructing message to relocate in an internal layer of the circuit board is outputted against the signal wiring.

Abstract: A dielectric film formed on a porous valve metal body is contacted with an oxidizing agent and dried. Then, by contacting the dielectric film with a monomer solution for forming an electrolyte layer of electroconductive polymer, a electrolyte layer of a solid electrolytic capacitor is formed by an oxidative polymerization reaction. An oxidative polymerization retarding agent, which delays the oxidative polymerization reaction, is added to at least one of the solutions, an oxidant solution and a monomer solution. The oxidative polymerization retarding agent delays the oxidative polymerization reaction when it contacts with the oxidant and monomer. As a result, the permeation of the monomer for forming an electroconductive polymer layer into small pores increases, and the covering rate of the electroconductive polymer in small pores increases, which improves the capacitance appearance factor and the equivalent series resistance in high frequency region.

Abstract: From a heat-curable photosensitive composition comprising a cresol and/or xylenol novolac resin which has been partially 1,2-naphthoquinonediazido-4- or 5-sulfonate esterified and having a weight average molecular weight of 1,000-10,000, an epoxy compound, and a solvent therefor, a pattern featuring improved solvent resistance and heat resistance can be formed at a high sensitivity and resolution by a simple process. The pattern is suitable as an interlayer insulating film for use in thin-film magnetic heads.

Abstract: A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pips and three-dimensional layout data of the pipe line including the pips using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.

Abstract: In a solid electrolyte capacitor including a solid electrolyte implemented by a conducting polymer produced by the chemical oxidative polymerization of a polymerization system containing a monomer, a cation serving as an oxidizer, and an anion serving as a dopant, the polymerization system contains the anion in a stoichiometrically excessive amount relative to the cation. The conductivity of a conducting polymer included in the capacitor is prevented from being deteriorated in a high temperature atmosphere, so that a desirable ESR is preserved during 125° C. heat test. In addition, a conductive high polymer layer having an extremely desirable film property is formed. This successfully prevents stresses ascribable to the expansion and contraction of a seal resin from being transferred to the capacitor during heat test, and thereby protects LC and ESR from deterioration.

Abstract: A multilayer structure in a solid electrolyte capacitor. The multilayer structure extends over a pore and a peripheral surface in the vicinity of the pore in a porous surface. The multilayer structure includes a dielectric layer having a first part extending on an inner surface of the pore and a second part extending on an outer surface of the peripheral surface; a first coupling layer extending on the first part of the dielectric layer; a first conductive polymer layer extending on the first coupling layer; a second coupling layer extending on at least the second part of the dielectric layer; and a second conductive polymer layer extending on the second coupling layer so that the second conductive polymer layer extends at least over the peripheral surface.

Abstract: In a method of making a solid electrolytic capacitor using an oxide film of an electrochemical valve metal as the dielectric and having, as solid electrolytes, first and second conducting polymer layers formed successively on the oxide film, the first and second conducting polymer layers are formed by chemical oxidative polymerization processes using an oxidizing agent, and the first conducting polymer layer (3) is formed from a compound having a lower reaction rate than the compound used to form the second conducting polymer layer (4). According to this method, there can be obtained solid electrolytic capacitors having high heat resistance and showing an improvement in capacitance appearance factor and frequency characteristics.

Abstract: In a method of making a solid electrolytic capacitor using an oxide film of an electrochemical valve metal as the dielectric and having, as solid electrolytes, first and second conducting polymer layers formed successively on the oxide film, the first and second conducting polymer layers are formed by chemical oxidative polymerization processes using an oxidizing agent, and the first conducting polymer layer (3) is formed from a compound having a lower reaction rate than the compound used to form the second conducting polymer layer (4).

Abstract: A solid electrolytic capacitor using a conducting polymer to be formed by chemical oxidative polymerization as a solid electrolyte, the capacitor having: a capacitor element which includes a conducting polymer layer with a thickness of 0.02 .mu.m or greater at its central part. A method for making the solid electrolytic capacitor, having the steps of: providing at least two kinds of solutions with different oxidizing-agent concentrations; and adjusting the thickness of a conducting polymer layer at central part of a capacitor element to be 0.02 .mu.m or greater by using first a solution with a lowest oxidizing-agent concentration of the solutions and subsequently a solution with a next lowest oxidizing-agent concentration of the solutions.

Abstract: A blood pump used for extra corporeal circulation, and more particularly, as a small turbo blood pump including a casing having an interior region, an aperture formed in an upper portion defining a blood inlet, and an aperture formed in a lower portion defining a blood outlet. An impeller is rotatably mounted within said casing interior region and includes a rotary shaft and at least one vane depending therefrom. The at least one vane has an upper radius adjacent the blood inlet that is less than a lower radius adjacent the blood outlet. The base of the at least one vane forms an exterior angle of less than 90.degree. with the axis of the rotary shaft. A driven magnet is mounted to the at least one vane. The impeller is rotationally driven by a non-contacting driving magnet that is exterior to the casing.

Abstract: A method of producing a single crystal by Czochralski method by contacting a seed crystal with a melt in a crucible, and then pulling it slowly to grow a single crystal ingot, wherein a pulling condition is controlled according to a cumulative time of use of a heater surrounding the crucible. The pulling conditions to be controlled may induce the relative position of the heater and the crucible, the number of rotations of the crucible, the number of rotations of the crystal, or an atmosphere pressure in the furnace and a gas volume of flowing. Also described is a method of producing a silicon single crystal by CZ method wherein a dispersion of impurity concentration in the crystal can be reduced, and a single crystal can be produced stably.

Abstract: An electrically conductive polymer layer of a solid electrolytic capacitor that coats a dielectric layer that coats an anode. An anode lead projects outwardly from the anode through the dielectric layer, and the electrically conductive polymer layer is separated by the dielectric layer form the anode lead. The electrically conductive polymer layer has a thicker portion than a remaining portion thereof and the thicker portion extends at least in the vicinity of the anode lead, and the thicker portion is bounded with the remaining portion so that a sloped-boundary loop between the thicker portion and the remaining portion extends to be parallel to a flat plane perpendicular to a direction along which the anode lead projects through the dielectric layer, whereby the thicker portion continuously extends close to the anode lead than the remaining portion.