Abstract: A fuel cell assembly is mounted on a vehicle via a mounting portion. The fuel cell assembly includes a first fuel cell unit, a first frame portion on which the first fuel cell unit is mounted and fixed, a second fuel cell unit, a second frame portion on which the second fuel cell unit is mounted and fixed, and a connecting portion that connects the first frame portion and the second frame portion such that the second fuel cell unit is located above the first fuel cell unit.

Abstract: A unidirectional microphone includes: a case having a shape of a bottomed cylinder and including a sound hole in a bottom thereof; a ring-shaped diaphragm fixed to the bottom in the case; a vibrating membrane stretched on the diaphragm; a backplate which has a shape of a bottomed cylinder and is housed in the case in a nested manner such that an air gap to serve as a sound propagation path is formed between the backplate and an inner surface of the case, the backplate including an aperture serving as a sound propagation path in a side face thereof; a spacer positioned between the diaphragm and the backplate to fix the diaphragm and the backplate, and including a notch serving as a sound propagation path in a portion thereof; and a base plate covering a top opening of the case and including a hole serving as a sound propagation path.

Abstract: A unidirectional microphone includes: a case having a shape of a bottomed cylinder and including a sound hole in a bottom thereof; a ring-shaped diaphragm fixed to the bottom in the case; a vibrating membrane stretched on the diaphragm; a backplate which has a shape of a bottomed cylinder and is housed in the case in a nested manner such that an air gap to serve as a sound propagation path is formed between the backplate and an inner surface of the case, the backplate including an aperture serving as a sound propagation path in a side face thereof; a spacer positioned between the diaphragm and the backplate to fix the diaphragm and the backplate, and including a notch serving as a sound propagation path in a portion thereof; and a base plate covering a top opening of the case and including a hole serving as a sound propagation path.

Abstract: A fuel cell assembly is mounted on a vehicle via a mounting portion. The fuel cell assembly includes a first fuel cell unit, a first frame portion on which the first fuel cell unit is mounted and fixed, a second fuel cell unit, a second frame portion on which the second fuel cell unit is mounted and fixed, and a connecting portion that connects the first frame portion and the second frame portion such that the second fuel cell unit is located above the first fuel cell unit.

Abstract: The present invention provides a heat pump type hot water supplying device that has solved the inconvenience of an antifreeze operation being not carried out due to the phenomenon of a backflow from a hot water storage tank without increasing the number of components. A control device 70 carries out an antifreeze operation, in which a water pump 23 is operated, if the temperature of water for hot water supply in a hot water supply circuit 20 positioned in a heating unit 50 decreases to a predetermined value or less. The water pump 23 is operated if the temperature of the water for hot water supply in the hot water supply circuit 20 positioned in the heating unit 50 increases while the water pump 23 is in a stopped state.

Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.

Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.

Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.

Abstract: A microphone capable of canceling vibration noise caused by mechanical vibration is provided with, in capsules, a pair of diaphragms and a pair of back plates opposite to the respective diaphragms. A printed circuit board is disposed at the middle of capsules. A pair of diaphragms is disposed close and opposite to the surfaces of the printed circuit board with the printed circuit board disposed therebetween. The difference in distance from a vibration source to the two diaphragms is made small. The microphone has a high canceling effect for canceling vibration noise caused by mechanical vibration.

Abstract: A unidirectional microphone includes a cylindrical capsule, a front plate blocking one end of the cylindrical capsule, a front plate sound hole formed in the front plate, a vibrating membrane and a first rear pole plate that are housed in the cylindrical capsule and form capacitance, a substrate blocking another open end of the capsule, and a rear plate sound hole formed in the substrate. The front plate sound hole and the rear plate sound hole are placed on mutually opposite sides of a central axis of the capsule so as to be offset relative to the central axis. The directional axis can be significantly offset relative to the central axis of the microphone using the microphone alone.

Abstract: There is provided a condenser microphone that has improved portability and that can be realized at low costs.

Abstract: The present invention provides a liquid crystal display device which can obviate the generation of leaking of light and display irregularities in the vicinities of so-called dummy pixels. The liquid crystal display device includes a pair of substrates which are arranged to face each other in an opposed manner with liquid crystal sandwiched therebetween, a plurality of gate signal lines and a plurality of drain signal lines which are formed on one substrate in a matrix array, a plurality of pixel regions defined by the gate signal lines and the drain signal lines, and a reference electrode and a pixel electrode which are formed in the inside of each pixel region. In such a constitution, the plurality of pixel regions are formed in both a display region and a non-display region, and a voltage applied to the reference electrodes is applied to the pixel electrodes in the inside of the pixel regions in the non-display region.

Abstract: A microphone capable of canceling vibration noise caused by mechanical vibration is provided with, in capsules, a pair of diaphragms and a pair of back plates opposite to the respective diaphragms. A printed circuit board is disposed at the middle of capsules. A pair of diaphragms is disposed close and opposite to the surfaces of the printed circuit board with the printed circuit board disposed therebetween. The difference in distance from a vibration source to the two diaphragms is made small. The microphone has a high canceling effect for canceling vibration noise caused by mechanical vibration.

Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.

Abstract: A method of making a forged piston includes the steps of providing a workpiece made of an aluminum alloy, a magnesium alloy or a titanium alloy; and forging the workpiece with stress applied thereto in a predetermined direction (forging direction). The method further includes, before the step of forging, the step of working the workpiece such that fiber flows of the workpiece are nonparallel to the predetermined direction.

Abstract: A unidirectional microphone includes a cylindrical capsule, a front plate blocking one end of the cylindrical capsule, a front plate sound hole formed in the front plate, a vibrating membrane and a first rear pole plate that are housed in the cylindrical capsule and form capacitance, a substrate blocking another open end of the capsule, and a rear plate sound hole formed in the substrate. The front plate sound hole and the rear plate sound hole are placed on mutually opposite sides of a central axis of the capsule so as to be offset relative to the central axis. The directional axis can be significantly offset relative to the central axis of the microphone using the microphone alone.

Abstract: An internal combustion engine component is composed of an aluminum alloy containing silicon, and includes a plurality of silicon crystal grains located on a slide surface. The slide surface has a ten point-average roughness RzJIS of about 0.54 ?m or more, and a load length ratio Rmr(30) at a cut level of about 30% of the slide surface is about 20% or more.

Abstract: A connecting rod is a fracture split-type connecting rod made of an ?+? type titanium alloy, including a rod main body and a big end provided at an end of the rod main body, the big end being fracture-split. The structure of the rod main body is an equiaxed ? structure, and the structure of fractured surfaces of the big end is an acicular ? structure.

Abstract: There is provided a condenser microphone that has improved portability and that can be realized at low costs.

Abstract: A display image correcting device including, retaining section configured to retain reference correction amount data for correcting nonuniformity as a predetermined factor of an image displayed on a basis of a video signal, the reference correction amount data representing an amount of correction at a predetermined horizontal and vertical position of the image, the amount of correction being obtained in correspondence with a video signal level as a reference, and correcting section configured to perform correction processing on the video signal in correspondence with a horizontal direction and a vertical direction of the image, and a brightness direction, and performing the correction processing on a basis of three-dimensional correction amount data obtained by making two-dimensional correction amount data corresponding to a horizontal and vertical position, the two-dimensional correction amount data being obtained on a basis of the reference correction amount data, linearly proportional or nonlinearly propor