Abstract: There is provided a measurement method for an electrical characteristic, the measurement method including applying a voltage to an element, and determining stability of a current value at the applied voltage.

Abstract: A power supply system capable of inhibiting electricity loss and deterioration of each power supply device while realizing high stability in the case where electricity supply is performed by using a plurality of power supply devices is provided. A switching element corresponding to a power supply device having a higher inter-terminal voltage out of two power supply devices selectively becomes in ON state, and a switching element corresponding to a power supply device having a lower inter-terminal voltage selectively becomes in OFF state. Thereby, overload on a specific power supply device is prevented, and current flow between the different power supply devices is able to be prevented without generating needless electricity loss. Further, since electricity of the power supply device having a higher inter-terminal voltage is selectively outputted, variation between the respective power supply devices becomes allowable to some extent.

Abstract: A molecular device including: at least one molecule of zinc cytochrome c; in which an electron or a hole is transferred within the at least one molecule of zinc cytochrome c bar utilizing transition of an electron between molecular orbitals of the at least one molecule of zinc cytochrome c. The molecular orbitals, for example, are a first molecular orbital localized in a first amino acid residue of the at least one molecule of zinc cytochrome c, and a second molecular orbital which is localized in a second amino acid residue of the at least one molecule of zinc cytochrome c and which has a maximum transition probability per unit time with respect to the first molecular orbital. In this case, the electron or the hole is transferred between the first amino acid residue and the second amino acid residue.

Abstract: The present invention provides a small fuel cell system including a secondary battery, in which deterioration in the secondary battery is suppressed regardless of a temperature condition. A control unit adjusts the supply amount of a liquid fluid of a fuel pump so that charging current I2 to a secondary battery becomes smaller than a predetermined maximum charging current value Imax. Consequently, for example, even in the case of using a small secondary battery, the charging current I2 is limited to be smaller than a predetermined upper limit value (maximum charging current value Imax). In addition, a temperature detecting unit detects temperature T1 of the secondary battery and the control unit controls the maximum charging current value Imax in accordance with the detected temperature T1 of the secondary battery. In such a manner, the operation of limiting the charging current I2 in accordance with the temperature T1 of the secondary battery at that time is performed.

Abstract: A color imaging element, a photosensor and a photoelectric transducer which use a protein and are capable of being stably used for a long time, and methods of manufacturing them are provided. A zinc-substituted cytochrome c552 is immobilized on a gold electrode with a self-assembled monolayer in between to form a blue-light photoelectric transducer. Alternatively, a cytochrome c552 is immobilized on a gold electrode with a self-assembled monolayer in between, and a fluorescent protein absorbing blue light is bonded to the cytochrome c552, thereby forming a blue-light photoelectric transducer. These photoelectric transducers each are used as a color imaging element or a blue-light photoelectric transducer of a photosensor.

Abstract: Disclosed herein is a solar cell system including: a solar cell; a load controller connected to the solar cell, the load controller being capable of controlling a load applied to the solar cell; an output measuring unit for measuring a power generation output of the solar cell; and an output predicting unit for predicting a value to be reached by the output on a basis of transient response of the output measured by the output measuring unit, wherein the solar cell system has a function of controlling the load controller so as to maximize the value to be reached.

Abstract: Disclosed herein is solar power-generating equipment, including: a solar cell; a secondary battery; an electric power outputting portion; a display portion configured to display thereon information about an electric-generating capacity of the solar cell, and information about a state of charge of the secondary battery; and a control portion configured to cause the display portion to display thereon the information about the electric-generating capacity of the solar cell only for a predetermined time length, and cause the display portion to display thereon the information about the state of charge of the secondary battery only for a predetermined time length.

Abstract: A fuel cartridge with which liquid leakage through an air induction hole from a fuel tank is able to be prevented and safety is able to be improved is provided. Switching drive for opening and closing an air induction hole 12 is performed by a valve 13 capable of controlling the switching drive according to a control signal. Thereby, air introduction to a fuel tank 100 containing a fuel is able to be controlled. Thus, for example, at the time of high temperature or fuel disorder, by closing the air induction hole 12 by the valve 13, fuel leakage from the fuel tank through the air induction hole of an existing check valve is able to be prevented, and safety is able to be improved.

Abstract: A mobile device including a solar battery having a light-receiving surface provided on a casing of the mobile device, an illuminance detector that detects an illuminance of light incident on the casing, an output section that outputs a state of light incident on the light-receiving surface of the solar battery, and a controller that controls the output section based on the illuminance detected by the illuminance detector.

Abstract: Provided are a liquid tank capable of reducing an influence of disturbance on measurement results and measuring accurate volume, and a fuel cell using the same. One face of a liquid container section is structured by a detector in which a first board to a fourth board each configured of a printed board are stacked in order. A pair of detection electrodes 12A and 12B are provided on a front face of the first board, and this pair of detection electrodes 12A and 12B are allowed to contact directly or indirectly to a liquid fuel inside the liquid container section to detect a stray capacitance. A back face side of the first board is disposed with the second board having a shielding electrode 22. Even when a hand or the like is brought close to the detector, the detection electrodes 12A and 12B are prevented from sensing the stray capacitance generated as a result.

Abstract: A fuel cell system that is able to perform power generation more stably than in the past regardless of external environment is provided. Based on a temperature of a power generation section detected by a temperature detection section, a supply amount of a liquid fuel from a fuel pump is adjusted, and therefore control in which the temperature of the power generation section becomes constant is performed. In addition, a fuel cell system that is able to perform power generation in a vaporization supply type fuel cell more stably than in the past is provided. A level of a power generation voltage supplied from the power generation section is raised by a boost circuit. In a control section, operation of the boost circuit is controlled using a given control table, and therefore control is performed on an output voltage and an output current supplied from the boost circuit to a load.

Abstract: There is provided a substrate detection device including a sensor unit configured to extract electrons by oxidizing a substrate, the substrate being a test target, a capacitor connected in series to the sensor unit, and a circuit configured to measure a voltage across terminals of the capacitor. The substrate detection device determines a concentration of the substrate based on the voltage across the terminals of the capacitor.

Abstract: Disclosed herein is a solar cell system including: a plurality of power generation panels that differ in the range of wavelengths of light they absorb from each other and convert light into power; a voltage detection section adapted to detect the voltage of power generated by each of the plurality of power generation panels; a reproduction section adapted to compare the voltages of the plurality of power generation panels detected by the voltage detection section so as to reproduce an audio or music signal appropriate to the comparison result; and an output section adapted to output audio or music reproduced by the reproduction section.

Abstract: Disclosed herein is a secondary battery protecting circuit connected in parallel with a nonaqueous secondary battery, the secondary battery protecting circuit including: a first voltage detecting circuit; a second voltage detecting circuit; a switch section; and a heat radiating section.

Abstract: A fuel cell capable of being thinned while maintaining a stable electric power supply is provided. A fuel cell includes a power generation section, a fuel tank, a fuel supply section (pump), and a fuel vaporization section. The power generation section has a structure in which a combined body is sandwiched between a cell plate and a cell plate. The combined body has a structure in which an anode electrode and a cathode electrode are oppositely arranged with an electrolyte film in between. In particular, the fuel supply section and the fuel vaporization section are integrally provided, and are connected by a nozzle section buried therein. A fuel contained in the fuel tank is pumped by the fuel supply section according to the state of the power generation section, and then is vaporized by the fuel vaporization section, and is supplied to the power generation section side.

Abstract: Disclosed herein is a secondary battery protecting circuit connected in parallel with a nonaqueous secondary battery, the secondary battery protecting circuit including: a first voltage detecting circuit; a second voltage detecting circuit; a switch section; and a heat radiating section.

Abstract: There is provided a power generation control apparatus including a measurement part measuring a voltage and a current of a photoelectric transducer, a regulation part regulating a current flowing through the photoelectric transducer, and a control part analyzing a shape of a current-voltage curve from the voltage and the current measured by the measurement part, and controlling the regulation part based on a result of the analysis to regulate the current flowing through the photoelectric transducer.

Abstract: A liquid tank and a tubular structure for liquid tank capable of suctioning an internal liquid to the last drop even when the tank is tilted to any angle are provided. The tubular structure 40 has a duct line 41 extending from a specific position 41A in the tank body 30 in a direction toward apexes, sides, or faces of the tank body 30. Ends of the duct line 41 are contacted with the apexes, the sides, or the faces of the tank body 30, and have a liquid inlet 41B. Since the inlet 41B is limited to the ends of the duct line 41, flow of the liquid in the tank body 30 has a certain directivity that the liquid enters through only the inlet 41B into the duct line 41, is transported to the specific position 41A, and is suctioned outside. In the tubular structure 40, an inner structure 45 having voids thorough which the liquid passes such as a porous body is provided.

Abstract: A piezoelectric vibration device system includes a piezoelectric vibration device that performs predefined movements using the vibration of the piezoelectric element; and a control unit that controls the behavior of the piezoelectric vibration device by controlling the frequency of the piezoelectric element, where the control unit includes: a first signal generating unit that generates a fundamental frequency signal having a fundamental frequency adjacent to the mechanical resonance frequency of the piezoelectric element; a second signal generating unit that generates a variable frequency signal whose frequency periodically rises or falls; and a frequency modulator that generates a frequency modulated signal, whose frequency changes into one of three or more frequencies existing around the fundamental frequency periodically and in sequence, by executing frequency modulation using the fundamental frequency signal and the variable frequency signal, and that outputs the frequency modulated signal as a control si

Abstract: To provide a hybrid power source system in which either a solar cell or a fuel cell and a secondary cell are combined with each other, and the secondary cell is used as an electric power buffer and which can maintain a high energy efficiency even when there is a change in a charging state of the secondary cell, a change in an operating condition, or a secular change in a member, prevent overcharging of the secondary cell, and suppress thermal deterioration of the solar cell or the fuel cell due to generation of a surplus electric power unable to be taken out.