Abstract: A light emitting device includes a resin package and a light emitting element. The resin package includes a first lead, a second lead, and a molded body molded integrally with the first lead and the second lead. The light emitting element is provided on the resin package.

Abstract: The energy efficiency is increased by reducing the throttle/relief loss in the delivery flow of the hydraulic pump caused by the bleed-off control, while also making it possible to control the delivery pressure of the hydraulic pump according to the operation amount of the control lever unit and improving the operational performance. A controller 6 includes a target pump pressure setting unit 32 which calculates a target pump delivery pressure which increases with the increase in an operation amount signal from an operation amount detector 20A/20B based on the operation amount signal and a pump flow rate upper limit setting unit 33 which calculates a pump flow rate upper limit which increases with the increase in the operation amount signal based on the operation amount signal.

Abstract: A light-emitting device includes: a substrate; and at least one light source comprising: a light-emitting element comprising a plurality of electrodes that face the substrate, and a resin member covering at least portions of lateral surfaces of the light-emitting element and not covering an upper surface of the light-emitting element, wherein, in a directivity diagram of the light source, a variation in light output of the light source in a range of ?40° to 40° is 15% or less.

Abstract: Disclosed is a hydraulic control system of a construction machine capable of achieving a reduction in meter-out pressure loss in accordance with variation of a negative load acting on a hydraulic actuator and capable of preventing deterioration in operability even when an abnormal condition arises in a pressure sensor detecting the magnitude of a negative load.

Abstract: A light emitting device includes a resin package and a light emitting element. The resin package includes a first lead, a second lead, and a molded body molded integrally with the first lead and the second lead. The light emitting element is provided on the resin package.

Abstract: Disclosed is a hydraulic drive system capable of improving the fuel efficiency of a work machine by reducing the pressure loss and drag loss of a hydraulic pump. There are provided an electric motor M; a third pump P3 driven by the electric motor; a third pump hydraulic line L3 to which the delivered hydraulic fluid from the third pump is supplied; a third directional control valve V4 provided in the third pump hydraulic line, switch-operated by an arm operation device 19, and controlling the flow rate of the hydraulic fluid supplied to the arm cylinder 8 from the third hydraulic pump; and a controller 18 drive-controlling the electric motor, wherein the controller drives the third pump by the electric motor when a swing/arm combined operation is detected by pilot pressure sensors S6, S7, S10, S11.

Abstract: A light emitting device includes a resin package including a first lead and a second lead. A light emitting element includes a first electrode disposed to face the first lead and having a first post electrode projecting toward the first lead in a first projecting direction with a height equal to or larger than 50 ?m and equal to or smaller than 150 ?m in the first projecting direction and a second electrode disposed to face the second lead and having a second post electrode projecting toward the second lead in a second projecting direction with a height equal to or larger than 50 ?m and equal to or smaller than 150 ?m in the second projecting direction. A first electrically conductive bonding member connects the first lead and the first post electrode. A second electrically conductive bonding member connects the second lead and the second post electrode.

Abstract: Provided is a hydraulic control system for a construction machine, including: a control valve (31) for controlling supply and discharge of hydraulic fluid to and from an arm cylinder (4); an operation lever (6) for controlling the position of a spool of the control valve (31); a meter-out flow passage (34) for passing therethrough hydraulic fluid discharged from the arm cylinder; a variable restrictor (23a) provided in the meter-out flow passage; pressure sensors (41, 42) for detecting a magnitude of a negative load applied by an external force to the arm cylinder in a same direction as an actuation direction of the arm cylinder; and a controller (45) for reducing an opening area of the variable restrictor (23a) according to an increase in the magnitude of the negative load calculated with a detection value from the pressure sensors (41, 42).

Abstract: A work machine including a specific actuator that supplies hydraulic fluid from a plurality of hydraulic pumps includes: first and second hydraulic pumps communicating with a first hydraulic actuator; a first control valve returning hydraulic fluid delivered by the first hydraulic pump to a tank; and a load detection section that detects a load on the first hydraulic actuator. A control valve drive section drives the first control valve such that a communication area between the first hydraulic pump and the tank is enlarged corresponding to an increase in the load on the first hydraulic actuator; and a flow rate control section, during supply of the hydraulic fluid from the first and second hydraulic pumps to the first hydraulic actuator, controls to reduce a delivery flow rate of the first hydraulic pump corresponding to an increase in the load on the first hydraulic actuator.

Abstract: A light emitting device includes a resin package including a first lead and a second lead. A light emitting element includes a first electrode disposed to face the first lead and having a first post electrode projecting toward the first lead in a first projecting direction with a height equal to or larger than 50 ?m and equal to or smaller than 150 ?m in the first projecting direction and a second electrode disposed to face the second lead and having a second post electrode projecting toward the second lead in a second projecting direction with a height equal to or larger than 50 ?m and equal to or smaller than 150 ?m in the second projecting direction. A first electrically conductive bonding member connects the first lead and the first post electrode. A second electrically conductive bonding member connects the second lead and the second post electrode.

Abstract: A lead frame for mounting semiconductor element includes a protrusion that is horizontally projects from edges of the upper and lower surfaces of a semiconductor-mounting part or a terminal part of the lead frame and that is provided on a lateral side of at least one of the semiconductor-mounting part or the terminal part of the lead frame, wherein the top end of the protrusion is substantially flat or the profile of the cross section of the top end is arc-shaped, and the top end of the protrusion is thick.

Abstract: A light emitting device mount includes a positive lead terminal, and a negative lead terminal. Each of the positive and negative lead terminal includes a first main surface, a second main surface, and an end surface. The end surface is provided between the first main surface and the second main surface. The end surface includes a first recessed surface area and a second recessed surface area. The first recessed surface area is extending from a first point of the first main surface in cross section. The second recessed surface area is extending from a second point of the second main surface in cross section. The first and second recessed surface areas define a protruding portion protruding outwardly.

Abstract: A method for manufacturing a circuit board constituted by a light emitting device and a mounting board includes the steps of: conveying the light emitting device onto the mounting board in a state in which a top face is chucked by a nozzle so that the nozzle and an exposed part of a first terminal part of the light emitting device are in contact; and placing the light emitting device onto the mounting board so that the first terminal part and a wiring component are in contact in a state in which the top face is chucked by the nozzle.

Abstract: A light emitting device mount includes a positive lead terminal, a negative lead terminal, and a resin portion. Each of the positive and negative lead terminal includes a first main surface, a second main surface, and an end surface. The end surface is provided between the first main surface and the second main surface. The end surface includes a first recessed surface area and a second recessed surface area. The first recessed surface area is extending from a first point of the first main surface in cross section. The second recessed surface area is extending from a second point of the second main surface in cross section. The first and second recessed surface areas define a protruding portion protruding outwardly. The resin portion is positioned at least between the end surface of the positive lead terminal and the end surface of the negative lead terminal.

Abstract: An object of the present invention is to provide a hydraulic control system for a work machine that is capable of reducing the loss caused by flow division while reducing a decrease in the speed of a hydraulic actuator due to a combined operation. The hydraulic control system for a work machine includes a first hydraulic actuator, one hydraulic pump, a second hydraulic actuator, and another hydraulic pump. The hydraulic control system further includes operating instruction detection means and pump flow control means. The operating instruction detection means detects that operating instructions are issued to the first hydraulic actuator and the second hydraulic actuator. The pump flow control means individually adjusts the delivery flow rate of the one hydraulic pump and the another hydraulic pump in accordance with operation amounts designated by the operating instructions for the first and second hydraulic actuators.

Abstract: A light emitting device includes a substantially cuboid package and a light emitting element. The package is made up of a molded article, and first and second leads each embedded in the molded article. The first lead has a first terminal component exposed at the boundary between a first side face, a bottom face, and a rear face contiguous with the bottom face and opposite a light emission face. The second lead has a second terminal component exposed at the boundary between a second side face opposite the first side face, the bottom face, and the rear face. The first terminal component has a first terminal concavity whose opening is contiguous with the first side face, the bottom face, and the rear face. The second terminal component has a second terminal concavity whose opening is contiguous with the second side face, the bottom face, and the rear face.

Abstract: A lead frame for mounting semiconductor element includes a protrusion that is horizontally projects from edges of the upper and lower surfaces of a semiconductor-mounting part or a terminal part of the lead frame and that is provided on a lateral side of at least one of the semiconductor-mounting part or the terminal part of the lead frame, wherein the top end of the protrusion is substantially flat or the profile of the cross section of the top end is arc-shaped, and the top end of the protrusion is thick.

Abstract: A light emitting device mount includes a positive lead terminal, a negative lead terminal, and a resin portion. Each of the positive and negative lead terminal includes a first main surface, a second main surface, and an end surface. The end surface is provided between the first main surface and the second main surface. The end surface includes a first recessed surface area and a second recessed surface area. The first recessed surface area is extending from a first point of the first main surface in cross section. The second recessed surface area is extending from a second point of the second main surface in cross section. The first and second recessed surface areas define a protruding portion protruding outwardly. The resin portion is positioned at least between the end surface of the positive lead terminal and the end surface of the negative lead terminal.

Abstract: In a light emitting device, a first lead has a first terminal part that is contiguous with a first connector. The first terminal part includes a first convex part that is exposed from a molded article at the inner peripheral face of a mounting recess, and a first concave part that is formed in the rear face of the first convex part.

Abstract: A light emitting device mount includes a positive lead terminal, a negative lead terminal, and a resin portion. Each of the positive lead terminal and the negative lead terminal includes a first main surface, a second main surface opposite to the first main surface in a thickness direction of each of the positive lead terminal and the negative lead terminal, and an end surface which is provided between the first main surface and the second main surface and which includes a first recessed surface area and a second recessed surface area. The first recessed surface area extends from the first main surface. The second recessed surface area extends from the second main surface, includes a closest point closest to the first main surface, and includes an extension part that extends outward of the closest point and toward the second main surface.