Abstract: A semiconductor device includes a semiconductor element and a first connection member. The semiconductor element includes a substrate and an electrode pad. The substrate includes a transistor formation region, in which a transistor is formed and which is shaped to be non-quadrangular. The electrode pad is located on the transistor formation region. The first connection member is connected to the electrode pad at one location. The electrode pad is arranged to cover a center of gravity of the transistor formation region in a plan view of the electrode pad. In the plan view, a connection region in which the first connection member is connected to the electrode pad includes a center of gravity position of the transistor formation region.

Abstract: A light guide member (35) is made of a transparent material, and includes a main body portion (35a), disposed at a back side of a central portion of an operating member (2), and extension portions (35d, 35e) which extend from the main body portion, and are disposed respectively at back sides of push operating portions (8, 9). This light guide member is separate from the operating member (2), and light emitted from LEDs (66) passes sequentially through the main body portion (35a) of the light guide member (35) and the extension portions (35d, 35e) to illuminate light-transmitting indicating portions (12, 13) of the operating member.

Abstract: A light guide member (35) is made of a transparent material, and includes a main body portion (35a), disposed at a back side of a central portion of an operating member (2), and extension portions (35d, 35e) which extend from the main body portion, and are disposed respectively at back sides of push operating portions (8, 9). This light guide member is separate from the operating member (2), and light emitted from LEDs (66) passes sequentially through the main body portion (35a) of the light guide member (35) and the extension portions (35d, 35e) to illuminate light-transmitting indicating portions (12, 13) of the operating member.

Abstract: A switch apparatus includes pushers (20, 21) for operating the switch bodies (17, 18), provided between an operating element (22), which is adapted to undergo a turning operation, and each of switch bodies. The pushers are configured in such a way as to be guided by pusher guides (15, 16) at places, each of which is located away from between a corresponding one of the switch bodies and a corresponding one of parts (24, 25) of the operating element for forcedly pushing the pushers. This eliminates the necessity for ensuring the necessary length (L11) of each of the pusher guides (15, 16), each of which is used for performing operations of forcedly pushing the switch bodies, between a corresponding one of the switch bodies and a corresponding one of the parts of the operating element for pushing the pushers.

Abstract: A switch apparatus includes pushers (20, 21) for operating the switch bodies (17, 18), provided between an operating element (22), which is adapted to undergo a turning operation, and each of switch bodies. The pushers are configured in such a way as to be guided by pusher guides (15, 16) at places, each of which is located away from between a corresponding one of the switch bodies and a corresponding one of parts (24, 25) of the operating element for forcedly pushing the pushers. This eliminates the necessity for ensuring the necessary length (L11) of each of the pusher guides (15, 16), each of which is used for performing operations of forcedly pushing the switch bodies, between a corresponding one of the switch bodies and a corresponding one of the parts of the operating element for pushing the pushers.

Abstract: A cooling fan assembly for a powered vehicle, preferably adapted for automotive use, and having a hub and a plurality of radial fan blades made integral therewith and of synthetic and resilient resin material, the assembly being characterized by the provision of externally knurled bushings and a spacer member, the bushings being coinserted in holes in the hub and the spacer member, the spacer member being fixed to the bushings at one end of the bushings and pressed to one side face of the hub.

Abstract: A fan assembly including a hub portion from which blades and a stem are extended respectively radially outwardly and radially inwardly, the hub portion, the blades and the stem being formed of molded plastics and made integral with each other. The stem is connected to an output shaft of fluid coupling by means of bolts each of which passes through a bushing. The bushing having knurling portion at outer surface thereof is inserted in the hole of the stem and the periphery of the hole is melted by heating upon insertion of the bushing therein so as to ensure the connection of the fan assembly to the output member. In case that a spacer is interposed between the stem and a flange of the bush, the spacer is fixedly connected to the bushing.

Abstract: A viscous fluid coupling device for use in automotive vehicles includes a rotatable input shaft driven by an engine and a rotatable output member driven by the input shaft via shearing force of viscous fluid thereby rotating a cooling fan in unison therewith. The output member is made of aluminum alloy whose coefficient of thermal expansion is larger than that of iron. The device includes a bearing set which is interposed between the output member and a stationary member made of iron. The bearing set is braked by the output member and the stationary member thereby decreasing the rotational speed of the fan when the ambient air temperature of the engine is below a predetermined value.

Abstract: A temperature-responsive viscous fluid coupling for use in automotive vehicles includes a rotatable input member driven by an engine and a rotatable output member driven by the input member via shearing force of viscous fluid. Notch means are successively provided on the whole outer periphery of the disk-shaped input member, and each of the notch means includes a line-shaped edge and a groove whereby substantially no fluid acts to transmit torque when the engine temperature is low, and the rotation of an engine cooling fan connected to the output member is kept low even when the coupling device is associated with the vehicle engine having a maximum rotation of more than 3,000 r.p.m. or 4,000 r.p.m.