Abstract: An electric current sensor includes an upper shield case, a lower shield case, a press-fit member and an inner member. The upper shield case has at least an upper surface and an upper outer peripheral portion. The upper outer peripheral portion extends downward in an up-down direction from an outer edge of the upper surface. The lower shield case has at least a lower surface and a lower outer peripheral portion. The lower outer peripheral portion extends upward in the up-down direction from an outer edge of the lower surface. The upper shield case and the lower shield case form an accommodating portion. The press-fit member has a main portion. The main portion pushes both of the upper outer peripheral portion and the lower outer peripheral portion outward in a horizontal plane perpendicular to the up-down direction to integrally fix the upper and lower shield cases to each other.

Abstract: A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.

Abstract: Provided are a vibration detector and a vibration detecting method, which are power saving, can detect vibration even if the vibration is very weak, and can perform both start-up of the apparatus and collection of data of vibration information by the use of only one sensor. The apparatus includes a vibration detector, a semiconductor switch, a controller and a power supply. The semiconductor switch and the controller are connected to the power supply. The vibration detector detects vibration and consequently generates a vibration voltage. The semiconductor switch includes a voltage divider for generating a bias voltage inside. The semiconductor switch detects a voltage produced by superposing the bias voltage onto the vibration voltage outputted from the vibration detector, and conducts current when the detected voltage is equal to or larger than a certain value. The controller wakes up with the current conducted by the semiconductor switch as a trigger signal.

Abstract: A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.

Abstract: Provided are a vibration detector and a vibration detecting method, which are power saving, can detect vibration even if the vibration is very weak, and can perform both start-up of the apparatus and collection of data of vibration information by the use of only one sensor. The apparatus includes a vibration detector, a semiconductor switch, a controller and a power supply. The semiconductor switch and the controller are connected to the power supply. The vibration detector detects vibration and consequently generates a vibration voltage. The semiconductor switch includes a voltage divider for generating a bias voltage inside. The semiconductor switch detects a voltage produced by superposing the bias voltage onto the vibration voltage outputted from the vibration detector, and conducts current when the detected voltage is equal to or larger than a certain value. The controller wakes up with the current conducted by the semiconductor switch as a trigger signal.

Abstract: A capacitor device comprises a capacitor element and an interposer. The capacitor element has a connection surface and comprises an anode electrode and a cathode electrode. The anode electrode and the cathode electrode are formed, at least in part, on the connection surface. The interposer comprises an insulator substrate, a plurality of first anode terminals, a plurality of first cathode terminals, a second anode terminal, a second cathode terminal, an anode through-hole and a cathode through-hole. The insulator substrate has first and second surfaces and has no inner conductive layer. The first anode terminals and the first cathode terminals are formed on the first surface. The first anode terminals are more in number than the anode electrode of the capacitor element. The first cathode terminals are more in number than the cathode electrode of the capacitor element The second anode terminal and the second cathode terminal are formed on the second surface.

Abstract: A multiterminal solid electrolytic capacitor includes a capacitor element including a porous sintered body which includes a plurality of anode leads projecting from a surface of the porous sintered body and which is made from a valve metal powder, a dielectric oxide coating disposed on the porous sintered body, and a cathode including a solid electrolyte layer disposed on the dielectric oxide coating. The multiterminal solid electrolytic capacitor further includes a substrate which carries the capacitor element, which includes a plurality of anode-mounting terminals and a cathode-mounting terminal, and which is covered with resin. The anode leads are portions of a valve metal pattern which extends in the porous sintered body and which bends at a plurality of locations so as to have a desired path length.

Abstract: The present invention provides an electrode and an electrochemical cell which have a high capacity and are excellent in long term reliability. The present invention relates to a cell electrode comprising at least one organic compound polymer and a carbon material as a conductive auxiliary material wherein the included organic compound polymer is a compound causing an oxidation-reduction reaction based on the electrochemical proton adsorption and desorption and wherein the carbon material is heat treated at 500° C. or higher; and relates to an electrochemical cell using the same.

Abstract: An electrochemical cell containing, as an electrode active material, a polyphenylquinoxaline compound represented by formula 1:

Abstract: An objective of this invention is to provide a proton-conducting polymer battery comprising an electrode containing a proton-conducting conductive compound as an active material and an aqueous electrolytic solution, which exhibits good battery properties and higher safety and higher reliability after reflow processing.

Abstract: This invention relates to a polymer having a chain structure of a repeating unit of a proton-conducting compound which causes an electrochemical redox reaction in a solution of a proton source to act as an electrode active material, and a heterocyclic compound structure; and an electrochemical cell comprising the polymer as an electrode active material.

Abstract: An objective of this invention is to provide an electrode and an electrochemical cell which can prevent increase of an electrode resistivity when using a carbon with a larger surface area, prevent deterioration of a high-temperature cycle property caused by increase in the electrode resistivity and have an improved appearance capacity. There are provided an electrode which is a cathode 2 or an anode 3, comprising a proton-conducting compound and two or more carbons as a conduction auxiliary agent, wherein at least one of the carbons is a fibrous carbon, and an electrochemical cell having the electrode.

Abstract: The present invention provides a method for easily removing metal impurities from an indole derivative trimer containing the metal impurities, which method involves mixing the indole derivative trimer containing the metal impurities with an imidazole compound in a solvent comprising water under heating, and filtering and separating the indole derivative trimer, from which the metal impurities have been removed, from the obtained mixture. Further, mixing a protonic acid allows the doping of the indole derivative trimer to be conducted simultaneously with the metal impurity removal, whereby the indole derivative trimer can be used as an electrode active substance of an electrochemical cell.

Abstract: This invention provides an electrode comprising a porous conductive substrate as well as an electrode active material and a conductive auxiliary filled in the pores in the substrate. This electrode exhibits improved shape stability (strength), a lower resistivity and better response. This electrode can be used to provide an electrochemical cell capable of quick charge/discharge and exhibiting improved cycle properties.

Abstract: An objective of this invention is to provide an electrochemical cell exhibiting excellent cycle properties at a high temperature. There is provided an electrochemical cell, comprising a polycarbazole compound prepared by polymerizing carbazole or its derivative as an electrode active material, wherein protons act as a charge carrier.

Abstract: This invention relates to a cell electrode comprising a proton-conducting compound capable of being involved in a redox reaction in a solution of an electrolyte containing a proton source as an electrode-active material and a cation exchanger, and an electrochemical cell therewith.

Abstract: The present invention relates to a copolymer compound prepared by copolymerizing two or more monomers selected from indole and indole derivatives. The copolymer compound can be used as an electrode active material to provide an electrochemical cell with an increased capacity and improved cycle properties.

Abstract: This invention relates to a polymer having a chain structure of a repeating unit of a proton-conducting compound which causes an electrochemical redox reaction in a solution of a proton source to act as an electrode active material, and a heterocyclic compound structure; and an electrochemical cell comprising the polymer as an electrode active material.

Abstract: This invention relates to an electrochemical cell stack in which a plurality of electrochemical cell unit comprising a sheet separator; a pair of a cathodic and an anodic sheet electrodes impregnated with an electrolytic solution which are placed facing to each other via the separator; a pair of a cathodic and an anodic current collector which are placed facing to each other via the pair of the cathodic and the anodic electrodes respectively; and a gasket surrounding the electrodes for sealing the pair of electrodes are stacked; comprising a sheet conductor between the units of the stack; and wherein the sheet conductor is placed such that the outer circumference of its face contacting with the unit is disposed to almost overlap with the inner circumference of the gasket in the unit. This invention can provide a more reliable electrochemical cell stack.

Abstract: The present invention relates to an electrode for an electrochemical cell which comprises a cathode containing a proton-conducting compound as an electrode active material, an anode containing a proton-conducting compound as an electrode active material and an electrolyte containing a proton source, comprising a proton-conducting compound and an anion-exchange resin. This invention can be used to improve cycle-life properties and high-speed charge/discharge properties in an electrochemical cell.