Abstract: A fuel cartridge (10) has a fuel container section (11), a fuel supplying port (12) for supplying liquid fuel reserved in the fuel container section (11) to a fuel cell body (30) therethrough, a primary cell (13) for supplying electric power for starting electric power generation of the fuel cell body (30), and an electrode configuration section (14) for supplying the electric power of the primary cell (13) to the fuel cell body (30). The fuel cell body (30) has a fuel accepting port (36) corresponding to the fuel supplying port (12), an electric contact section (37) corresponding to the electrode configuration section (14), a power generating device (31), a fuel supplying pump (33) for supplying liquid fuel from the fuel accepting port (36) to the power generating device (31), and a control device (32) for controlling so that the fuel supplying pump (33) is driven by the electric power of the primary cell (13).

Abstract: A fuel filling kit 10 includes a filling nozzle capable of being inserted into an opening of a fuel cartridge, a filling vessel capable of filling liquid fuel reserved in the inside thereof into the fuel cartridge through the filling nozzle, and an opening sealing sheet for sealing the opening. The opening sealing sheet has a methanol blocking portion having a resisting property to liquid fuel and a sticking portion capable of being attached to the fuel cartridge.

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: A fuel tank preventing an excessive supply when manually supplying a liquid such as a fuel, a fuel cell and an electronic apparatus using the fuel tank are provided. A fuel tank includes a deformable section which is deformable by external pressure in a part of a housing containing a liquid fuel. The deformable section has a projected shape outward from a top surface of the housing, and has a configuration in which a flat surface is arranged with a bending part in the top surface of the housing. The flat surface of the deformable section is pushed by a finger, a stick or the like to apply external pressure to the deformable section, thereby the deformable section is deformed so as to be flipped with respect to the top surface of the housing. The volumetric capacity in the housing is changed to push the liquid fuel out.

Abstract: A fuel cartridge with which damage or break of a valve due to miss-loading or the like is able to be avoided and safety is able to be improved, a fuel cell, and an electronic device are provided. A fitting groove for fitting to a fuel cell body is provided in a package of a fuel cartridge. Improper force applied to a valve due to inappropriate loading or the like is avoided, and possibility that the valve is damaged or broken is decreased. The valve is provided not projecting from the package. Compared to an existing structure that a valve is projecting outside of the package, the effective volume of a fuel storage space is increased even if the height of the entire cartridge is the same as that of the existing case.

Abstract: A molecular device includes a gold electrode, cytochrome c552 or a derivative or variant thereof immobilized on the gold electrode, and an electron transfer protein coupled to the cytochrome c552 or the derivative or variant thereof. Electrons or holes, or both, are transferred through the electron transfer protein by transition of electrons between molecular orbitals of the electron transfer protein.

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: The present invention provides a liquid tank capable of maintaining inner pressure constant even in a state where it is inclined at any angle and a fuel cell using the same. A liquid tank includes: an outside casing provided with one gas inlet/outlet port; and a liquid-repellent structure provided on the inside of the outside casing, connecting two or more vertexes, sides, or faces of the outside casing and the gas inlet/outlet port, and made of a liquid-repellent material having a void through which gas passes.

Abstract: A mutant protein having diaphorase activity is provided. A mutant protein includes an amino acid sequence obtained by deletion, replacement, addition, or insertion of at least one amino acid residue of a native-form amino acid sequence of SEQ. ID. No. 1, wherein the mutant protein has diaphorase activity with an enzyme activity of 245 or more.

Abstract: A fuel cell system with which excessive supply or supply shortage of a vaporized fuel is able to be avoided and stable power generation with high output is able to be made, and an electronic device using the same. In a vaporization chamber, a projection is provided as a heat conduction section to conduct heat generated in a power generation section to a liquid fuel supplied to the vaporization chamber. Between the end of the projection and an inner wall face of an inner member, a gap is provided. In the gap, the heat is effectively conducted to the liquid fuel supplied from the end of a fuel supply route, and the liquid fuel is vaporized. It is possible that the projection is contacted with a section in the vicinity of the end section of the fuel supply route in the inner wall face of the inner member, and thereby heat of the power generation section is conducted to the inner member through the projection, heat is conducted to the liquid fuel through the inner member, and the liquid fuel is vaporized.

Abstract: A fuel cell system with which elution of a cathode due to excessive electro motive force is able to be inhibited without increase of electric power consumption at the time of power generation is provided. In the case where electro motive force V1 by a power generation section 10 exceeds a given threshold voltage Vp at which elution of a cathode of respective unit cells 10A to 10F is generated, electric power based on a voltage ?V for an excess portion over the threshold voltage is heat-consumed in a voltage limitation circuit 3, and thereby the electro motive force V1 of the power generation section 10 is limited to the threshold voltage Vp or less. The voltage limitation circuit includes a zener diode, a shunt regulator, a transistor or the like.

Abstract: A fuel cell system includes a power generator configured to generate electricity through supply of an oxidant gas and a fuel composed of a compound containing a carbon atom; a concentration detector configured to detect a concentration of carbon dioxide (CO2); and a controller configured to operate so as to allow the power generator to generate electricity when the concentration of carbon dioxide detected by the concentration detector is lower than a predetermined threshold concentration and so as to stop a generating operation of the power generator when the concentration of carbon dioxide detected is higher than or equal to the threshold concentration.

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: A fuel cell capable of uniformly supplying a fuel to a plurality of power generation sections, an electronic device, a fuel supply plate, and a fuel supply method are provided. A liquid fuel from a fuel tank is supplied to an inlet of a fuel diffusion plate, from which the liquid fuel is moved to outlets through flow paths, and the liquid fuel is supplied to each power generation section. At least one of the flow paths includes curved lines, preferably includes a circular arc, and the curvature radius of the curved line or the like is adjusted, and thereby each distance of the flow paths becomes equal to each other. Whether a linear distance between the inlet and the plurality of outlets is long or short, an almost equal amount of the liquid fuel reaches the plurality of outlets almost at the same time, and is supplied to each power generation section.

Abstract: A fuel cartridge is provided. The fuel cartridge capable of reliably suppressing fuel leakage and realizing improved safety. The fuel cartridge includes a cartridge body having a fuel supply port, and a seal member for directly closing the fuel supply port. The cartridge body has an atmosphere communication port, and the seal member directly closes the fuel supply port and the atmosphere communication port.

Abstract: A mutant protein having diaphorase activity is provided. A mutant protein includes an amino acid sequence obtained by deletion, replacement, addition, or insertion of at least one amino acid residue of a native-form amino acid sequence of SEQ. ID. No. 1, wherein the mutant protein has diaphorase activity with an enzyme activity of 245 or more.

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: A battery system capable of inhibiting a reverse voltage applied to a unit cell that has lost the electromotive force without active control is provided. The battery system include two or more unit cells electrically connected in series, and a rectification section that is composed of at least one of an electronic device having a rectification function and an interface having a rectification action, and is electrically connected to the respective two or more unit cells in parallel.

Abstract: A photoelectric transducer is provided. The photoelectric transducer includes a first electrode, an electron transferring protein, and a second electrode. The first electrode includes an electroconductive material. The electron transferring protein is immobilized on or above the first electrode, has a photoelectric conversion capability, and includes a metal. The second electrode includes an electroconductive material.