Abstract: In an electronic device, state detection elements are arranged at various locations of a fuel cell system supplies an electric power to a phone unit, the state detection elements detect states of the fuel cell system at the locations. A cell state detection unit detects an operating state of the fuel cell from an output signal of each of the state detection elements. A determination unit determines an operating mode to prompt action to be taken for the operating state of the fuel cell detected by the cell state detection unit. A content of the operating mode is displayed with an image of a character or a fictitious creature based on a determination by the determination unit.

Abstract: A fuel cell (1) includes an electromotive unit (2) having a membrane electrode assembly (MEA) (12), a fuel storage unit (4) storing a liquid fuel, and a fuel supply mechanism (3) supplying the fuel from the fuel storage unit (4) to a fuel electrode (7) of the membrane electrode assembly (12). The membrane electrode assembly (12) has a gas vent hole (17) provided in a manner to penetrate through at least an electrolyte membrane (11) to let a gas component generated on a side of the fuel electrode (7) escape to a side of an air electrode (10).

Abstract: A fuel cell (10) which comprises a membrane electrode assembly (16) composed of a fuel electrode, an air electrode, and an electrolyte membrane (15) sandwiched between the fuel electrode and the air electrode; and an oxidant gas blocking mechanism (25) superposed on the air electrode side and capable of blocking an oxidant gas to be supplied to the air electrode. The oxidant gas blocking mechanism (25) comprises fixed plates and, sandwiched therebetween, a frame having a movable plate disposed therein.

Abstract: [PROBLEMS] To provide an electron emitting layer with improved efficiency of electron emission and prevented damage of the device. [SOLVING MEANS] An electron emitting device including an amorphous electron supply layer 4, an insulating layer 5 formed on the electron supply layer 4, and an electrode 6 formed on the insulating layer 5, the electron emitting device emitting electrons when an electric field is applied between the electron supply layer 4 and the electrode 6, wherein the electron emitting device includes a concave portion 7 provided by notching the electrode 6 and the insulating layer 5 to expose the electron supply layer 4, and a carbon layer 8 covering the electrode 6 and the concave portion 7 except for an inner portion 4b of an exposed surface 4a of the electron supply layer 4 and being in contact with an edge portion 4c of the exposed surface 4a of the electron supply layer 4.

Abstract: Disclosed is a semiconductor device eliminated of the effect of an adhesive used in assembling upon the semiconductor chip. According to the semiconductor device, the semiconductor device includes a board, a semiconductor chip provided on and contacting with the board, and a plurality of wires each having both ends firmly fixed to a point close to a peripheral edge of the semiconductor chip and a point on the board close to a peripheral edge respectively. The semiconductor chip is fixed on the board by means of the wires.

Abstract: A fuel cell (10) has a fuel electrode, an air electrode, an electrolyte film (15) held between the fuel electrode and the air electrode, a liquid fuel tank (21) for containing liquid fuel, and a gas-liquid separation film (22) provided between the liquid fuel tank (21) and the fuel electrode. The gas-liquid separation film (22) exchanges heat between water vapor diffused from the fuel cell and the liquid fuel (F) and allows a vaporized component of the liquid fuel (F) to pass to the fuel electrode side.

Abstract: In electronic equipment using a fuel cell as a power source, an antenna and a fuel cell, which are provided in a lower case of a main body receiving electronic parts, are arranged at a given distance from each other. An acceptable communication state can be established in the electronic equipment.

Abstract: The present invention provides a fuel cell comprising: a cathode catalyst layer 2; an anode catalyst layer 3; a membrane electrode assembly 1 including a proton conductive membrane 6 disposed between the cathode catalyst layer 2 and the anode catalyst layer 3; a cathode conductive layer 7a provided to a side of the cathode catalyst layer of the membrane electrode assembly 1; an outer case 15 having an air intake port 14 for supplying an air to the cathode catalyst layer 2; an anode conductive layer 7b provided to a side of the anode catalyst layer of the membrane electrode assembly 1; and a liquid fuel tank 9 for storing a fuel and supplying the fuel to the anode catalyst layer 3; wherein the cathode conductive layer 7a and the anode conductive layer 7b are integrated onto one sheet of insulating film 16 and the integrated insulation film 16 is folded in two so that the membrane electrode assembly 1 is accommodated in an inner space formed in the folded insulating film 16.

Abstract: The fuel cell includes a membrane electrode assembly including a cathode catalyst layer, an anode catalyst layer and a proton conducting film provided between the cathode catalyst layer and the anode catalyst layer, a cathode conductive layer electrically connected to the cathode catalyst layer, an anode conductive layer electrically connected to the anode catalyst layer, a liquid fuel storage chamber which contains a liquid fuel, a gas-liquid separation film which selectively transmit a gasified component of the liquid fuel from the liquid fuel storage chamber to the anode catalyst layer, and a gasified fuel storage chamber formed at a section between the gas-liquid separation film and the anode conductive layer, and the distance L1 from the gas-liquid separation film to the anode conductive layer is set to 0 mm or more but 2 mm or less.

Abstract: The present invention provides a fuel cell comprising: a cathode catalyst layer 2; an anode catalyst layer 3; a membrane electrode assembly 1 including a proton conductive membrane 6 disposed between the cathode catalyst layer 2 and the anode catalyst layer 3; an outer case 15 having an air intake port 14 for supplying an air to the cathode catalyst layer 2; a cathode conductive layer 7a provided to a side of the cathode catalyst layer 2 of the membrane electrode assembly 1; an anode conductive layer 7b provided to a side of the anode catalyst layer 3 of the membrane electrode assembly 1; and a liquid fuel tank 9 for storing a liquid fuel and supplying a vaporized component of the liquid fuel to the anode catalyst layer 3; wherein a supporting projection 16 for supporting the anode conductive layer 7a and the membrane electrode assembly 1 and for pressing the anode conductive layer 7a and the membrane electrode assembly 1 to a side of the outer case 15 is provided to the liquid fuel tank 9 so as to project fr

Abstract: The invention relates to a fuel cell including a plurality of catalyst layer electrodes disposed as each catalyst layer electrode of an anode and a cathode in parallel on substantially the same plane and each having a shape with a specified aspect ratio, a liquid fuel impregnation layer laminated on the liquid fuel receiving chamber side of a vapor-liquid separating membrane, and a liquid fuel supply frame laminated on the liquid fuel receiving chamber side of the liquid fuel impregnation layer and formed with single or a plurality of fuel supply ports which supply the liquid fuel to the liquid fuel impregnation layer that is formed at the position corresponding to substantially the same position of the anode catalyst layer electrode.

Abstract: The present invention provides a fuel cell comprising: a cathode catalyst layer 2; an anode catalyst layer 3; a proton conductive membrane 6 disposed between the cathode catalyst layer 2 and the anode catalyst layer 3; a liquid fuel tank 9 for storing a liquid fuel L; a fuel vaporizing layer 10 for supplying a vaporized component of the liquid fuel L to the anode catalyst layer 3; a surface layer 15 having an air intake port 14 for supplying an air to the cathode catalyst layer 2; and a moisture retention plate 13A, disposed between the surface layer 15 and the cathode catalyst layer 2, for preventing water generated at the cathode catalyst layer from being evaporated, wherein the moisture retention plate is composed of a laminated body comprising at least two kind of porous members 13a and 13b each having different moisture permeability (moisture retention property).

Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.

Abstract: An electron emission device including a lower electrode on a near side to a substrate and an upper electrode on a far side to the substrate and an insulator layer and an electron supply layer stacked between the lower electrode and the upper electrode and emitting an electron from the upper electrode side at the time of applying a voltage between the lower electrode and the upper electrode, which includes an electron emission part provided with an opening formed by an inner wall of a stepped shape in which a thickness of the insulator layer decreases stepwise; and a carbon-containing carbon region which is connected to the upper electrode side and which is brought into contact with the insulator layer and the electron supply layer.

Abstract: Provided is a method of driving an electron emission apparatus used in displays, imaging devices, flat-surface light sources and the like which can restrain a change with time.

Abstract: An electrode membrane structure includes a solid electrolyte membrane of a polymer material, and a fuel electrode and an air electrode stacked on both sides of the solid electrolyte membrane. The fuel electrode is formed of an anode catalyst layer and a fuel electrode collector, and the air electrode is formed of a cathode catalyst layer and an air electrode collector. At the backside of the fuel electrode collector, a fuel tank is defined between a casing and a fuel holding film. The interior of the fuel tank is divided into a plurality of divisions by a partition to uniformly distribute liquid fuel to the fuel electrode. The liquid fuel (methanol) in the fuel tank is absorbed and held by the fuel holding film, is dispersed through the fuel holding film to the fuel electrode.

Abstract: Catalyst layer electrodes have its two-dimensional projection plane shape formed in a rectangular shape, having cut-off fillet portions cutting off part of the fillet so that terminal ends of mutually adjacent short side and long side of at least one corner do not meet orthogonally, and are compressed to a solid electrolyte membrane.

Abstract: Disclosed is an image pickup device capable of greatly reducing delay in drive signals supplied to field emission devices, and cross-talk and the like that originate in these drive signals. The image pickup device comprises a photoelectric conversion film for receiving incident light on one side thereof; a field emission layer having an electron emitting surface apart from and facing the other side of the photoelectric conversion film, and including a plurality of electron emission devices; and a drive layer formed on a back side of the field emission layer and including a plurality of device drive circuits for supplying drive signals to each of back electrodes of the plurality of electron emission devices.

Abstract: A fuel cell using a liquid fuel containing methanol with a concentration of more than 50 mol % and no more than 100 mol %, the fuel cell includes a cathode catalyst layer, an anode catalyst layer to which a vaporized component of the liquid fuel is supplied, and a proton conductive membrane provided between the cathode catalyst layer and the anode catalyst layer, wherein a ratio (L:L0) of a thickness L to a thickness L0 is more than 1:1 and no more than 5:1 assuming a total thickness of the cathode catalyst layer and the anode catalyst layer to be represented by L and a thickness of the proton conductive membrane to be represented by L0.

Abstract: An electron emitting device having a lower electrode on a side near to a substrate and an upper electrode on a side remote from the substrate respectively, formed of a plurality of electron emitting elements remitting electrons from a side of the upper electrode side, wherein space is formed between the electron emitting elements, and the upper electrode extends across the plurality of electron emitting elements and the space by a bridging portion of the upper electrode.