Abstract: In the present invention, a start request terminal transmits start request information including participation restriction information to a management system. A transmission/reception unit of the management system transmits participation authentication information for authenticating participation in an established session to a middle-of-conference participation terminal. A transmission/reception unit of a participation request terminal transmits, to the management system, participation request information for requesting participation of the participation request terminal in an established session and participation authentication information which is input with the terminal in accordance with the participation authentication information transmitted to the terminal.

Abstract: A communication management system manages session information regarding a contents data session being established to communicate contents data among a plurality of participating communication terminals, and receives a request for registering a group of the plurality of participating communication terminals that are currently participating in the session, from a first participating communication terminal of the plurality of participating communication terminals, during when the session is being established. In response to the request for registering, the communication management system stores first candidate information of the first participating communication terminal in a first memory, the first candidate information associating the group of the plurality of participating communication terminals with the first participating communication terminal.

Abstract: A communication terminal reads, from a removable memory, user-specific application information indicating one or more of the plurality of applications that are allowed for use by a specific user, and transmits a request for address information that includes application identification information of each one of one or more applications that are allowed for use by the specific user at the communication terminal to obtain address information associated with the application identification information.

Abstract: In response to receiving terminal identification information that identifies a request communication terminal, a communication management system obtains application information indicating one or more applications that are allowed for use by the request communication terminal, using the received terminal identification information of the request communication terminal, and transmits the application information of the request communication terminal to the request communication terminal through the communications network.

Abstract: A transformer includes: a core assembly 1 composed of a pair of E-shaped cores 11, 12 each having two side leg portions 1a, 1b and a central leg portion 1c therebetween, end surfaces of the central leg portions 1c and end surfaces of the side leg portions 1a, 1b of the E-shaped cores 11, 12 oppose each other, respectively, and a gap G is provided between at least the end surfaces of the central leg portions 1c; a primary coil N1 formed by winding round wire around a perimeter of the central leg portion 1c; and a secondary coil N2 formed by winding rectangular wire around a perimeter of the central leg portion 1c by edgewise winding, wherein a space for reducing leakage flux from the gap G that acts on the secondary coil N2 is provided between the secondary coil N2 and the gap G.

Abstract: A DC power supply system includes a DC power supply and a secondary battery for backing up the DC power supply. When a voltage of the DC power supply is lower than a voltage of the secondary battery, the DC power system adds an extra voltage to the voltage of the DC power supply to provide an input voltage to the secondary battery higher than the voltage of the secondary battery by using an electric power of the secondary battery, and the secondary battery is charged.

Abstract: Provided is a DC connection device including a first connector connected to a DC power source side or a load side; and a second connector connected to the first connector. The first connector or the second connector has a semiconductor switch that is turned on when a portion of at least one of terminals of one of the first and second connectors is brought into contact with a terminal of the other of the first and second connectors, and is turned off before the terminal of the one of the first and second connectors is completely separated from the terminal of the other of the first and second connectors.

Abstract: A DC/DC converter has DC input terminals to which a DC power is inputted, a transformer, and a bidirectional switching device on the primary side of the transformer.

Abstract: A plane coil which reduces an increase of an effective resistance in a high-frequency area and is made thinner is provided. The plane coil is equipped with plural conductive wires which are parallel to each other, wherein the conductive wires are arranged in a plane and spirally wound, and coil ends of the respective conductive wires are electrically connected to each other at coil lead-out portions and thus are connected in parallel. The conductive wires are arranged in plane, so that a coil thickness does not increase, and the coil is made thinner. Moreover, the plural conductive wires are connected in parallel, an increase of an effective resistance due to an influence of a skin effect in a high-frequency area is reduced.

Abstract: A transformer includes: a core assembly 1 composed of a pair of E-shaped cores 11, 12 each having two side leg portions 1a, 1b and a central leg portion 1c therebetween, end surfaces of the central leg portions 1c and end surfaces of the side leg portions 1a, 1b of the E-shaped cores 11, 12 oppose each other, respectively, and a gap G is provided between at least the end surfaces of the central leg portions 1c; a primary coil N1 formed by winding round wire around a perimeter of the central leg portion 1c; and a secondary coil N2 formed by winding rectangular wire around a perimeter of the central leg portion 1c by edgewise winding, wherein a space for reducing leakage flux from the gap G that acts on the secondary coil N2 is provided between the secondary coil N2 and the gap G.

Abstract: A power supply apparatus includes a secondary battery and a timer unit for measuring a time required to charge the secondary battery from a first State Of Charge (SOC) to a second SOC, or a time required to discharge the second battery from the second SOC to the first SOC. The power supply apparatus further includes a determination unit for determining a degraded state of the secondary battery based on results of the measurement by the timer unit.

Abstract: A power distribution system includes a DC-DC converter which outputs a DC power after converting the DC power outputted from a DC power source to a desired voltage level. In the power distribution system, the DC-DC converter is controlled so as to operate only when the input voltage falls in a predetermined range.

Abstract: A body fat measuring device comprises electrodes brought into contact with the waist portion of a subject, an optical sensor composed of a light applying section and a light receiving section, an impedance computing section for computing the impedance between the electrodes, a subcutaneous fat thickness computing section for computing the thickness of the subcutaneous fat of the subject from the value detected by the optical sensor, and a body fat computing section which subtracts the amount of subcutaneous fat determined using the thickness of the subcutaneous fat computed by the subcutaneous thickness computing section from the total fat amount of the subject determined using the impedance computed by the impedance computing section so as to determine the visceral fat amount of the subject. With this, not only the accuracy of measurement of the visceral fat amount is improved but also the visceral fat amount of the subject can be easily computed even without a database.

Abstract: A plane coil which reduces an increase of an effective resistance in a high-frequency area and is made thinner is provided. The plane coil is equipped with plural conductive wires which are parallel to each other, wherein the conductive wires are arranged in a plane and spirally wound, and coil ends of the respective conductive wires are electrically connected to each other at coil lead-out portions and thus are connected in parallel. The conductive wires are arranged in plane, so that a coil thickness does not increase, and the coil is made thinner. Moreover, the plural conductive wires are connected in parallel, an increase of an effective resistance due to an influence of a skin effect in a high-frequency area is reduced.

Abstract: This invention has an object to a planar coil, a contactless electric power transmission device using the same. This planar coil is configured to suppress an eddy current developed between adjacent turns of wire for minimizing adverse effects on ambient electrical appliances resulting from heat generation. The planar coil 1 in the present invention is formed of spiral shaped wire 7 coated with thinned insulative film, in which adjacent turns of the wire 7 are spaced in radial direction at such a predetermined interval to suppress an eddy current. This planar coil 1 is preferably employed as a power transmission coil or power receiving coil.

Abstract: A method of forming an impurity-introduced layer is disclosed. The method includes at least a step of forming a resist pattern on a principal face of a solid substrate such as a silicon substrate (S27); a step of introducing impurity into the solid substrate through plasma-doping in ion mode (S23), a step of removing a resist (S28), a step of cleaning metal contamination and particles attached to a surface of the solid substrate (S25a); a step of anneal (S26). The step of removing a resist (S28) irradiates the resist with oxygen-plasma or brings mixed solution of sulfuric acid and hydrogen peroxide water, or mixed solution of NH4OH, H2O2 and H2O into contact with the resist. The step of cleaning (S25a) brings mixed solution of sulfuric acid and hydrogen peroxide water, or mixed solution of NH4OH, H2O2 and H2O into contact with the principal face of the solid substrate.

Abstract: A vertical axis type wind power station and a blade manufacturing process, which can stabilize the turning motions of blades and can raise the power generation efficiency by lightening the blades to smoothen the turning motions of the blades; a structure and method for mounting the wind-driven device of a wind power station, by which the wind-driven device can be easily disposed at the upper portion of a building; and a windbreak wind power plant for breaking the wind by using the vertical axis type wind power stations or wind-driven devices arranged along the shoreline or the like.

Abstract: A body fat measuring device comprises electrodes brought into contact with the waist portion of a subject, an optical sensor composed of a light applying section and a light receiving section, an impedance computing section for computing the impedance between the electrodes, a subcutaneous fat thickness computing section for computing the thickness of the subcutaneous fat of the subject from the value detected by the optical sensor, and a body fat computing section which subtracts the amount of subcutaneous fat determined using the thickness of the subcutaneous fat computed by the subcutaneous thickness computing section from the total fat amount of the subject determined using the impedance computed by the impedance computing section so as to determine the visceral fat amount of the subject. With this, not only the accuracy of measurement of the visceral fat amount is improved but also the visceral fat amount of the subject can be easily computed even without a database.

Abstract: The present invention provides an electric generator for achieving the cost reduction of the electric generator itself from the view point of the structure of the electric generator, and the cost reduction of the generation of electricity from the view point of the performance of the electric generator, and a power supply equipment for use in this electric generator.

Abstract: A conversion processing method, device and computer program product. The device includes a memory for storing drafting data, a selector for choosing the drafting data stored in the memory, a converter for converting the drafting data chosen by the selector into shape data, and a transmitter for transmitting the shape data to a browsing management server that stores the shape data and enables browsing the shape data via a communications network. The converter converts, from drafting data selected by the selector, the drafting data having a registration date and time corresponding to the date on which the converter has converted the drafting data, and that is also more recent than the registration date on which the drafting data is registered in the memory.