Abstract: A semiconductor light receiving device includes a plurality of photodiode units, each of which is configured to convert a received light into an electric signal; and a separating unit configured to electrically separates the plurality of photodiode units from each other. The impurity concentration of a surface portion of the separating unit is equal to or lower than a first concentration. The first concentration is a concentration at which the light receiving sensitivity of the separating unit to light is substantially equal to the light receiving sensitivity of each of the plurality of photodiode units of the light. A wavelength of the light is equal to or longer than that of blue-violet light.

Abstract: Drain holes are arranged in positions offset from valve holes of a valve body. The drain holes have a long chimney-shaped space such that even if insulation material, that has peeled off of an electric motor, is suspended in oil, it is less likely to enter drain chambers through the drain holes.

Abstract: A hybrid drive system is provided which includes a first damper that is connected to an output shaft of an engine; an electric motor which is provided adjacent to the first damper and connected to the output side of the first damper; a power split device that distributes power from the engine to the electric motor and a wheel side output shaft; and a second damper that is connected to the output side of the first damper between the first damper and the electric motor. Accordingly, a hybrid drive system can be provided which reduces vibration caused by resonance of a torsional damper without increasing the size of the hybrid drive system.

Abstract: Drain holes are arranged in positions offset from valve holes of a valve body. The drain holes have a long chimney-shaped space such that even if insulation material, that has peeled off of an electric motor, is suspended in oil, it is less likely to enter drain chambers through the drain holes.

Abstract: A semiconductor light receiving device includes a plurality of photodiode units, each of which is configured to convert a received light into an electric signal; and a separating unit configured to electrically separates the plurality of photodiode units from each other. The impurity concentration of a surface portion of the separating unit is equal to or lower than a first concentration. The first concentration is a concentration at which the light receiving sensitivity of the separating unit to light is substantially equal to the light receiving sensitivity of each of the plurality of photodiode units of the light. A wavelength of the light is equal to or longer than that of blue-violet light.

Abstract: A first hydraulic pump and a second hydraulic pump are respectively mounted to both ends of a rotary shaft in an electric motor, whereby it is possible to drive both of the first hydraulic pump and the second hydraulic pump by one electric motor. Since the electric motor is driven and controlled so as to have any higher rotational speed among a rotational speed of the first hydraulic pump for obtaining an amount of working fluid required in a hydraulic control circuit for a power steering apparatus and a rotational speed of the second hydraulic pump for obtaining an amount of working fluid required in a hydraulic control circuit for a power train by a hydraulic pump drive controlling portion, it is possible to necessarily and sufficiently secure the working fluids respectively required in the power steering hydraulic control circuit and the power train hydraulic control circuit which are independent from each other, by a little electric power consumption.

Abstract: A hydraulic control system for an automatic transmission, which has a frictional engagement unit adapted to be kept in a slipping state when in a predetermined speed changing state and in an applied state when in another gear ratio changing state; and a drain oil establishing member for establishing a drain oil when the frictional engagement unit is kept in the slipping state comprises a drain pressure switching mechanism for supplying the drain oil to the frictional face of the frictional engagement unit when the frictional engagement unit is kept in the slipping state.

Abstract: A first hydraulic pump and a second hydraulic pump are respectively mounted to both ends of a rotary shaft in an electric motor, whereby it is possible to drive both of the first hydraulic pump and the second hydraulic pump by one electric motor. Since the electric motor is driven and controlled so as to have any higher rotational speed among a rotational speed of the first hydraulic pump for obtaining an amount of working fluid required in a hydraulic control circuit for a power steering apparatus and a rotational speed of the second hydraulic pump for obtaining an amount of working fluid required in a hydraulic control circuit for a power train by a hydraulic pump drive controlling portion, it is possible to necessarily and sufficiently secure the working fluids respectively required in the power steering hydraulic control circuit and the power train hydraulic control circuit which are independent from each other, by a little electric power consumption.

Abstract: A hybrid drive system comprising: a torque amplify mechanism coupled to an output member of an internal combustion engine and an output member of an electric motor, as energized by an electric power to output a torque, for amplifying and outputting the torque, as outputted from the internal combustion engine, by controlling the torque of the electric motor; and a continuously variable transmission arranged between torque amplify mechanism and the output shaft for increasing/decreasing and outputting the torque inputted from the torque amplify mechanism. Further comprised is a forward/backward switching mechanism between the torque amplify mechanism and the output shaft for setting a forward state, in which the inputted motive power is unreversed and outputted, and a backward state in which the inputted motive power is reversed and outputted. As a result, the reverse run can be made only with the motive power outputted from the internal combustion engine.

Abstract: A photodiode includes a semiconductor region (1, 7) having a first conductivity type (p or n type), an embedded layer (2) disposed in the semiconductor region (1, 7) and having a second conductivity type (n or p type) different from the first conductivity type (p or n type), and a leader (9) made of a semiconductor of the second conductivity type (n or p type). The embedded layer extends parallel to a surface (8) of the semiconductor region (1, 7). The leader extends from the surface (8) of the semiconductor region (1, 7) along the depth of the semiconductor region (7, 7) and is joined to a region of the embedded layer (2). The photodiode preferably has a base layer (11) made of a semiconductor of the second conductivity type (n or p type). The base layer (11) is held against the surface (8) of the semiconductor region (1, 7) and extends parallel to the surface (8) of the semiconductor region (1, 7). The base layer is isolated from the embedded layer (2) and electrically connected to the leader (9).

Abstract: To suppress a separation of working fluid from the vane surface during operation at and around a fluid coupling condition attained after a substantial completion of torque conversion, the aerofoil and the array of stator vanes of a torque converter for vehicles are arranged such that a pressure side leading edge area and a suction side trailing edge area of the vane respectively satisfy the following conditions based upon the parameters assumed in FIG. 2:(D.sub.L -D.sub.LMIN)/D.sub.LSL .ltoreq.0.38(X.sub.L /S.sub.L -0.08).sup.1. 7(D.sub.T -D.sub.TMIN)/D.sub.TST .ltoreq.0.36(X.sub.T /S.sub.T -0.45).sup.1.

Abstract: A jointing device, which permits quick connection and disconnection of a corrugated flexible conduit, comprises a joint body having a cylindrical connector section for receiving the conduit, the connector section being formed with receive holes arranged circumferentially thereof, and a clasp axially slidably mounted on the joint body. The clasp has an outer cylinder axially slidably fitted on the connector section and covering the receive holes formed in the connector section, an inner cylinder slidably fitted into the connector section for receiving the conduit, and locking members connected at their respective fixed ends with the inner cylinder. The outer and inner cylinders are connected with each other. The locking members each have a free end portion thereof formed with a claw engageable with and disengageable from the conduit. The free end portion of each locking member is received in a corresponding receive hole when the free end portion is pushed radially outward by the corrugated flexible conduit.