Abstract: A fuel cell system (1A) comprises a casing (2) having a suction port (31) through which air is introduced from outside into an internal space thereof; a fuel cell (4) accommodated within the casing (2) and configured to generate electric power through an electrochemical reaction between a fuel gas and an oxidizing gas; an air supply unit (6) of a diaphragm type disposed within the casing (2) and configured to take in the air introduced through the suction port (31) and supply the air to the fuel cell (4); and a heating unit (30) disposed within the casing (2) and configured to heat the air in a space from the suction port (31) to the air supply unit (6).

Abstract: Disclosed herein is a device that includes a plurality of semiconductor chips mounted on a module substrate. Each of the semiconductor chips includes a reset terminal to which a reset signal is supplied, and an internal circuit that is initialized based on the reset signal. The module substrate includes a reset signal line connected commonly to the reset terminals of the semiconductor chips, and an anti-resonance element connected to the reset signal line.

Abstract: A fuel cell system (1) includes a fuel cell (7), an electromagnetic diaphragm pump (8), a flow detector (9), and a controller (20). The controller is configured to set the frequency of the AC voltage (applied AC voltage) applied to the electromagnetic diaphragm pump, control the voltage of the applied AC voltage in the set frequency to cause the flow rate of the gas detected by the flow detector to reach a target flow rate; and the controller is configured to newly set the frequency of the applied AC voltage to a frequency at which the voltage of the applied AC voltage becomes smaller than a predetermined voltage when the voltage of the applied AC voltage becomes equal to or greater than the predetermined voltage.

Abstract: A fuel cell system (1A) comprises a casing (2) having a suction port (31) through which air is introduced from outside into an internal space thereof; a fuel cell (4) accommodated within the casing (2) and configured to generate electric power through an electrochemical reaction between a fuel gas and an oxidizing gas; an air supply unit (6) of a diaphragm type disposed within the casing (2) and configured to take in the air introduced through the suction port (31) and supply the air to the fuel cell (4); and a heating unit (30) disposed within the casing (2) and configured to heat the air in a space from the suction port (31) to the air supply unit (6).

Abstract: An object of the present invention is to provide a fuel cell including a reaction gas supply path which makes it difficult to cause water condensation in a region near an end plate. A fuel cell of the present invention comprises a cell stack 2 having a reaction gas passage 13a inside thereof and having on one end surface thereof a reaction gas supply inlet 17 from which a reaction gas is supplied to the reaction gas passage 13a, a joint 5 connecting the reaction gas supply inlet 17 to an external pipe P for supplying the reaction gas, plate-shaped end members 3, 4 which are disposed on one end surface of the cell stack 2 and have through-holes 21, 23 into which the joint 5 is inserted so as not to contact inner wall surfaces thereof, and a closing member 9 for substantially closing a space formed between the joint 5 and the inner wall surfaces of the through-holes 21, 23.

Abstract: Disclosed herein is a device that includes a plurality of semiconductor chips mounted on a module substrate. Each of the semiconductor chips includes a reset terminal to which a reset signal is supplied, and an internal circuit that is initialized based on the reset signal. The module substrate includes a reset signal line connected commonly to the reset terminals of the semiconductor chips, and an anti-resonance element connected to the reset signal line.

Abstract: A fuel cell system includes at least: a hydrogen generator (4) which is supplied with a raw material to generate a fuel gas containing hydrogen; a humidifier (5) which is supplied with the fuel gas, generated in the hydrogen generator, to humidify the fuel gas by utilizing heat energy and an off gas supplied thereto; and a fuel cell (8) which is supplied with the fuel gas humidified in the humidifier and an oxidizing gas to generate electric power while discharging the heat energy and the off gas, and further includes a condenser (6) which cools down steam of the off gas, discharged from the fuel cell, by heat exchange with a cooling medium to convert the steam into condensed water, and supplies the condensed water to the humidifier to humidify the fuel cell.

Abstract: A separator for use in a humidifying device includes: main surfaces contacting steam permeable membranes (2), respectively; a fluid channel (3, 4) formed by concave portions (66, 81) of a convex-concave portion formed on each of the main surfaces; and an elastic layer (1a, 1c) formed up to at least a certain depth from tip ends of convex portions (67, 82) of the convex-concave portion.

Abstract: A semiconductor memory device of the present invention determines a logic level of a signal based on a predetermined reference voltage. And the memory device has an input terminal to which a reference signal having the reference voltage is input, a low-pass filter connected to the input terminal for passing a component of the reference voltage of the reference signal and eliminating undesired high frequency components, and one or more input first-stage circuits to each of which an output of the low-pass filter and a signal having the logic level to be determined are connected. In the memory device, the low-pass filter has predetermined attenuation at least at a frequency of an operating clock.

Abstract: A humidifier (16) includes a hollow fiber module (42) in which a gas to be humidifier flows, and a tubular casing (30) that houses the hollow fiber module (42). An inlet port (32) for introducing a humidifying gas into a flow path (30h) is formed on the peripheral surface on one end side of the casing (30), and an outlet port for discharging the humidifying gas from the flow path 30h is formed on the peripheral surface of the other end side of the casing 30. The casing (30) includes a curved portion (37), and the hollow fiber module (42) is curved along the shape of the curved portion (37).

Abstract: An object of the present invention is to provide a fuel cell including a reaction gas supply path which makes it difficult to cause water condensation in a region near an end plate. A fuel cell of the present invention comprises a cell stack 2 having a reaction gas passage 13a inside thereof and having on one end surface thereof a reaction gas supply inlet 17 from which a reaction gas is supplied to the reaction gas passage 13a, a joint 5 connecting the reaction gas supply inlet 17 to an external pipe P for supplying the reaction gas, plate-shaped end members 3, 4 which are disposed on one end surface of the cell stack 2 and have through-holes 21, 23 into which the joint 5 is inserted so as not to contact inner wall surfaces thereof, and a closing member 9 for substantially closing a space formed between the joint 5 and the inner wall surfaces of the through-holes 21, 23.

Abstract: A separator for use in a humidifying device includes: main surfaces contacting steam permeable membranes (2), respectively; a fluid channel (3, 4) formed by concave portions (66, 81) of a convex-concave portion formed on each of the main surfaces; and an elastic layer (1a, 1c) formed up to at least a certain depth from tip ends of convex portions (67, 82) of the convex-concave portion.

Abstract: A fuel cell system includes at least: a hydrogen generator (4) which is supplied with a raw material to generate a fuel gas containing hydrogen; a humidifier (5) which is supplied with the fuel gas, generated in the hydrogen generator, to humidify the fuel gas by utilizing heat energy and an off gas supplied thereto; and a fuel cell (8) which is supplied with the fuel gas humidified in the humidifier and an oxidizing gas to generate electric power while discharging the heat energy and the off gas, and further includes a condenser (6) which cools down steam of the off gas, discharged from the fuel cell, by heat exchange with a cooling medium to convert the steam into condensed water, and supplies the condensed water to the humidifier to humidify the fuel cell.

Abstract: A data transfer method is executed to transit a three-state transmitting circuit from a high-impedance state into a data output state, transmit a preamble (dummy data) onto a bus, and sequentially transmit the essential data. The shortening of a waveform caused in the first data piece after the transition from the high-impedance state into the data output state is executed against the preamble and no shortening of a waveform is not brought about in the essential data subsequent to the preamble. This makes it possible to exclude the limitation on speeding up the data transfer imposed by the shortening of the waveform.

Abstract: A method of manufacturing a stator core for a dynamo-electric machine by preparing a cylindrical laminated body by winding into a helical shape a continuous first sheet formed by press-punching from a strip-shaped first magnetic steel sheet material, preparing a plurality of second sheets by press-punching from a thicker second magnetic steel sheet material, bending the second sheets into an annular shape and stacking the second sheets bent into the annular shape on both axial ends of the laminated body and integrating the stacked sheets by laser welding.

Abstract: A method of manufacturing a stator core for a dynamo-electric machine, by preparing a cylindrical laminated body by winding into a helical shape a continuous first sheet formed by press-punching from a first magnetic steel sheet material. Preparing a plurality of second sheets having a predetermined length by press-punching from a thicker second magnetic steel sheet material. Next, chamfered portions are formed on edge portions of second recess portions by chamfering the second sheet. Then, the second sheets are bent into an annular shape and the second sheets bent into the annular shape are stacked on both axial ends of the laminated body and integrated by laser welding.

Abstract: A clock is located at a position close to a plurality of memory modules connected to a memory controller and located away from the controller, and wiring is carried out so that read access is preferential for transmission of read data. With respect to write data, a delay amount corresponding to a round-trip propagation delay time to each of the modules is measured and writing of the write data is carried out while maintaining a known time relationship between the clock and data. To measure round-trip reflection, lines are wired between the modules and a location detection circuit in a 1:1 relationship, and the circuit measures a time taken from a signal output time of a driver having the same impedance as that of the wired lines to a reflected-wave reception time of a hysteresis receiver.

Abstract: A semiconductor memory device of the present invention determines a logic level of a signal based on a predetermined reference voltage. And the memory device has an input terminal to which a reference signal having the reference voltage is input, a low-pass filter connected to the input terminal for passing a component of the reference voltage of the reference signal and eliminating undesired high frequency components, and one or more input first-stage circuits to each of which an output of the low-pass filter and a signal having the logic level to be determined are connected. In the memory device, the low-pass filter has predetermined attenuation at least at a frequency of an operating clock.

Abstract: A cylindrical laminated body is prepared by winding into a helical shape a continuous first sheet formed by press-punching from a thin first magnetic steel sheet material. A second sheet having a predetermined length is prepared by press-punching from a thicker second magnetic steel sheet material. Next, chamfered portions are formed on edge portions of second recess portions by chamfering the second sheet. Then, the second sheet is bent into an annular shape and the second sheets bent into the annular shape are stacked on both axial ends of the laminated body and integrated by laser welding.

Abstract: A cylindrical laminated body is prepared by winding into a helical shape a continuous first sheet formed by press-punching from a thin first magnetic steel sheet material. A second sheet having a predetermined length is prepared by press-punching from a thicker second magnetic steel sheet material. Next, chamfered portions are formed on edge portions of second recess portions by chamfering the second sheet. Then, the second sheet is bent into an annular shape and the second sheets bent into the annular shape are stacked on both axial ends of the laminated body and integrated by laser welding.