Abstract: Vertical planes equally dividing space between a position of the shaft-hole axis of a head to a rearmost point of the head are defined as first vertical plane S1 to fifth vertical plane S5 starting from a face side. In a view showing a second contour R2 and a fourth contour R4 in overlapping relation, the second contour is defined by an intersection of the second vertical plane S2 and a head outside surface, and the fourth contour is defined by an intersection of the fourth vertical plane and the head outside surface. In this overlap view, toe-1 point t1 to toe-8 point t8are defined on a toe-side line portion of the second contour R2. Toe-side gaps T1 to T8 between the second contour R2 and the fourth contour R4 with respect to the respective points t1 to t8 are defined according to predetermined specifications.

Abstract: A quadrature mixer circuit and an RF communication semiconductor integrated circuit capable of suppressing variations in secondary distortion while reducing the current consumption are provided. In a quadrature mixer circuit, even if local signals different by 90 degrees inputted to the bases of I transistors and Q transistors have large amplitudes, interference is suppressed by I resistors, Q resistors, and capacitors. Also, since the capacitors are provided, changes in bias current values can be suppressed. Accordingly, variations in secondary distortion can be suppressed. Furthermore, the capacitors combine current outputs of a differential circuit formed of I transistors and the resistor and a differential circuit formed of Q transistors and the resistor. Therefore, current consumption can also be reduced.

Abstract: A golf club head comprises a main body and a crown cover disposed in a crown portion of the head, wherein the main body comprises a crown base made of a metal material and provided with a plurality of openings gradually decreasing in the opening area from the backside to the foreside of the head, and the crown cover is made of a material such as FRP whose specific gravity is lower than the metal material, and disposed on the crown base so as to cover the openings.

Abstract: An apparatus for cooling a fuel cell, which generates power by supplying air and a fuel gas, in which a cooling liquid is circulated between the fuel cell and a heat exchanger is disclosed. The cooling apparatus of the present invention separates the gas introduced into the cooling liquid, mixes the separated gas with the air supplied to or exhausted from the fuel cell, and then exhausts the gas.

Abstract: The present invention is a receiving circuit used for a cellular phone that is reduced in size and can realize low power consumption. In a signal reception circuit that is used in a cellular phone that perform transmission and reception of a plurality of band wireless signals and includes a low-pass filter for removing blockers unnecessary for signal reception, the low-pass filter 104 is composed of a plurality of filters composed of a plurality of different circuit configurations and having a plurality of different pole positions, switching between a filter for blocker removal and a filter configuration with reduced sensitivity degradation is performed by combining a plurality of filters for each signal reception band, and by performing power-off of an unnecessary filter portion in the filter configuration, power consumption is reduced.

Abstract: In a gain switching LNA including a first transistor, a first transistor group (for example, second to ninth transistors) and a second transistor group (for example, tenth to seventeenth transistors), a first resistor connected between an emitter of the tenth transistor and a collector of the first transistor and a second resistor connected to emitters of eleventh to seventeenth transistors and the collector of the first transistor and having a resistance one seventh as high as that of the first resistor are provided. In a high-gain mode, since isolation of the tenth to seventeenth transistors which are turned OFF and the first and second to ninth transistors is secured by the first resistor and the second resistor, there is no deterioration in the noise factor.

Abstract: A golf club head is provided with a recessed part provided on the external side of a head main body, with a weight member formed of a material having a specific gravity greater than that of the head main body and mounted in the recessed part. A first addition member is mounted on the external side of the weight member in an abutting relationship, with a base of the addition member being a resin or a rubber. The head has a second addition member formed of metal is mounted on the external side of the first addition member in an abutting relationship. The metal of the second addition member has a specific gravity greater than that of the first addition member and smaller than that of the weight member. Through this arrangement, joint strength between the head main body and the weight member is enhanced.

Abstract: A golf club head 2 is provided which includes a recessed part 16 provided on the external surface of a head main body 14, and a weight member 20 which is mounted in this recessed part 16 and which is formed of a material having a specific gravity greater than that of the head main body 14. This golf club head 2 has a first addition member 26 mounted on the external side of the weight member 20 while abutting the external surface of the weight member 20. A base of this first addition member 26 is a resin or a rubber. Furthermore, the head 2 has a second addition member 30 mounted on the external side of the first addition member 26 while abutting the external surface of the first addition member 26. This second addition member 30 is formed of a metal. This metal has a specific gravity being greater than that of the first addition member and smaller than that of the weight member 20. According to the present invention, joint strength between the head main body and the weight member can be enhanced.

Abstract: Golf club 2 has shaft 6, head 4, inner member 8 and screw member 10. The inner member 8 has shaft channel 46 provided so as to open on the top end side, and engaging hole 52 provided separately from this shaft channel 46. The head 4 has hosel member 22 having hosel hole 26, and head hole 70 that extends from the head external surface toward inside the head. At least a part of the inner member 8 is inserted into the hosel hole 26. The shaft 6 and the shaft channel 46 are stuck by adhesion and/or fitting. Continuous hole 76 is formed with the engaging hole 52 continuous with the head hole 70, and the screw member 10 is inserted into the engaging hole 52 and the head hole 70 through this continuous hole 70. The screw member 10 is thread connected with the engaging hole 52 and/or the head hole 70.

Abstract: A bent pipe corresponding to at least API X100 grade and having a base metal with high strength and toughness and a weld metal with high toughness is provided. A steel plate prepared by cooling after hot rolling at a cooling rate at the central portion in the plate thickness direction of at most 5° C. per second at 700-500° C. is formed into a bend mother pipe, which is then heated to 900-1100° C. and subjected to bending, then it is cooled to a temperature of at most 300° C. at a cooling rate in the central portion of the thickness direction of at least 5° C. per second at 700-500° C., after which it is tempered at 300-500° C.

Abstract: A clasp having a first member and a second member that are respectively disposed to two coupled members, the clasp being closed by the first member and the second member mutually engaging when the coupled members slide in relatively opposite directions. The first member has a first attachment member that has a side wall disposed on both sides of a direction intersecting the direction in which one of the coupled members slides, and a spine that connects the side walls, and a button unit that has a push button which is urged to the outside from the inside of the coupled members in the direction intersecting the sliding direction of the coupled members, and which is disposed with the one coupled member held between the first attachment member and the button unit. The second member has a second attachment member that has a side wall attached at a prescribed position to the other coupled member on both sides of a direction intersecting the direction in which the other coupled member slides.

Abstract: Because there are different voltages at two current output terminals of a current divider, the voltages at the current input terminals of two current switch circuits are not affected mutually even with a large amplitude of local signals. Accordingly, the performance of a quadrature mixer can be enhanced by increasing the amplitude of the local signals. Bias currents are supplied to the two current switch circuits through the current divider from a common DC current source which essentially supplies a bias current to a V/I converter and, therefore, power consumption is reduced.

Abstract: A golf club head has a hollow structure comprising: a club face having a toe-side extreme end and a heel-side extreme end between which a club face maximum width Wf is defined; and a rear part being rear of the club face and having a toe-side extreme end and a heel-side extreme end (excepting a hosel portion) between which a head maximum width Wh is defined. The ratio (Wh/Wf) of the head maximum width Wh to the club face maximum width Wf is more than 1.0, but not more than 1.5. The distance of the toe-side extreme end of the rear part and the distance of the heel-side extreme end of the rear part are not more than 0.2 times the distance of a front-side extreme end of the head, each distance measured in the back-and-forth direction of the head from a rear-side extreme end of the head. Therefore, the weight is distributed toward the toe, heel and rear of the head, and the depth of the center of gravity and the moment of inertia can be increased.

Abstract: A multimedia transmission system with redundant multiple strain transmission lines for transmitting packeted multimedia data that includes sound and/or video comprises an apparatus having send and receive function capabilities. The apparatus includes a carrier detection device adapted to detect a carrier related to that packeted multimedia data. A switch device is adapted to change over to a selected sending and/or receiving capable transmission line from among the redundant multiple strain transmission lines based on the carrier detection by the carrier detection device.

Abstract: A hollow golf club head is provided. A sole portion is provided with at least one rib extended from a toe side to a heel side. The rib is curved in a manner that a toe-side end and a heel-side end of the rib are located closer to a face side than a central part of the rib.

Abstract: In an apparatus for managing area data, the first data structure for area management includes: a first index data structure including a first root node corresponding to a first set of areas containing a first area, first non-leaf nodes, and first leaf nodes; and a first data storage corresponding to the first leaf nodes. The second storage for area data stores one or more second data structures for area management constructed on the basis of area data collected from data in the first storage for area data based on one or more area attributes designated by a user. The second data structure for area management includes: a second index data structure including a second root node corresponding to a second set of areas containing second areas collected based on the one or more area attributes designated, second non-leaf nodes, and second leaf nodes; and a second data storage corresponding to the second leaf nodes.

Abstract: A configuration of an iron golf-club head is defined as follows in order to offer ease of addressing a ball with face open. In a projected figure of the head focused on a projection plane including a sweet spot and normal to a perpendicular from a center of gravity of the head to a face thereof, a maximum transversal is defined by a straight line cutting across a face contour over the greatest length as passing through an intersection of a leading edge and a straight line drawn from a heel-side end point of a face line in a predetermined direction of the projected figure, and forms an angle of 39° to 50° (inclusive) relative to a horizontal line. The face contour has a radius of curvature of 10 mm to 22 mm (inclusive) in the vicinity of a toe-side intersection of the face contour and the maximum transversal.

Abstract: Hydrogen gas supplied to and then purged from a fuel cell is temporarily retained in a reservoir provided in an exhaust fuel diluter, and diluted before release into atmosphere. Cathode exhaust gas discharged from a cathode of the fuel cell is mixed to dilute the hydrogen gas, and air continues to be supplied to the cathode of the fuel cell for a specific period of time even after generation of electric power in the fuel cell is stopped, so that the hydrogen gas retained in the reservoir is continuously diluted with the cathode exhaust gas and released. Air for ventilation of the fuel cell may be used instead or in addition, to dilute and release the hydrogen gas retained in the reservoir after the generation of electric power in the fuel cell is stopped.

Abstract: An exhaust gas processing device for a fuel cell is disclosed. In the exhaust gas processing device, hydrogen gas purged from the fuel cell is mixed with cathode exhaust gas from the fuel cell and diluted prior to being discharged to an atmosphere. The exhaust gas processing device includes a reservoir in which purged hydrogen gas from the fuel cell is retained and mixed with cathode exhaust gas from the fuel cell, and an agitating gas introduction inlet provided at an upper part of the reservoir. The purged hydrogen gas is mixed with and diluted by agitating gas introduced from the agitating gas introduction inlet.

Abstract: A wireless communication system uses a transmission power detection circuit. The transmission power detection circuit has excellent linearity of detection output for transmission output power and can obtain detection output not having temperature dependence. The transmission power detection circuit has a rectifying detection part that includes plural amplifiers connected in series and obtains detection output by taking out rectified outputs from emitters of input transistors of amplifiers of individual stages and synthesizing them. A compensation voltage generating circuit has a dummy amplifier having a construction similar to the amplifiers constituting the rectifying detection part and a coefficient circuit that changes output of the dummy amplifier at a specified ratio, and generates voltage for compensating temperature characteristics.