Abstract: The present invention provides a brake band in which brackets are joined to both ends of a curved strap and a friction material is fixed to an inner side of the curved strap and wherein a dynamic pressure generating groove is formed in the friction material only at an area of the friction material which is positioned at an upper part along a vertical direction in a condition that the brake band is attached to an automatic transmission.

Abstract: The present invention provides a brake band in which brackets are joined to both ends of a curved strap and a friction material is fixed to an inner side of the curved strap and wherein a dynamic pressure generating groove is formed in the friction material only at an area of the friction material which is positioned at an upper part along a vertical direction in a condition that the brake band is attached to an automatic transmission.

Abstract: A card-type wireless communication device and a wireless communication system incorporating it, designed for low power consumption, comprises the first control block for controlling the first switching block so as to turn on or off power for each of the transmitter circuit, the base-band signal processing circuit, and the interface circuit independently in accordance with a plurality of different detection signals generated by the receiving signal level detection block according to the intensity of the received high-frequency signal; and the second control block for controlling the second switching block so as to turn on or off a plurality of amplifiers independently and controlling the third switching block so as to bring any amplifier that is turned on into the non-shortcircuited state and any amplifier that is turned off into the shortcircuited state.

Abstract: A multiplate lockup clutch for use in fluid, principally in a torque converter is provided with a multiplicity of friction plates. Each of the friction plates is provided on a friction surface thereof with at least one combined groove, preferably, a plurality of combined grooves. Each combined groove consists of a first groove and a second groove. The first groove extends from an inner circumferential edge to an outer circumferential edge of the friction plate and communicates an inner circumference and an outer circumference of the friction plate with each other. The second groove intersects the first groove and extends in a circumferential direction of the friction plate. As an alternative, a multiplate lockup clutch useful in fluid, primarily in a torque converter is provided with a multiplicity of friction plates, and each of the friction plates is shaped in a waveform as viewed in a circumferential direction thereof.

Abstract: A card-type wireless communication device and a wireless communication system incorporating it, designed for low power consumption, comprises the first control block for controlling the first switching block so as to turn on or off power for each of the transmitter circuit, the base-band signal processing circuit, and the interface circuit independently in accordance with a plurality of different detection signals generated by the receiving signal level detection block according to the intensity of the received high-frequency signal; and the second control block for controlling the second switching block so as to turn on or off a plurality of amplifiers independently and controlling the third switching block so as to bring any amplifier that is turned on into the non-shortcircuited state and any amplifier that is turned off into the shortcircuited state.

Abstract: A multiplate lockup clutch for use in fluid, principally in a torque converter is provided with a multiplicity of friction plates. Each of the friction plates is provided on a friction surface thereof with at least one combined groove, preferably, a plurality of combined grooves. Each combined groove consists of a first groove and a second groove. The first groove extends from an inner circumferential edge to an outer circumferential edge of the friction plate and communicates an inner circumference and an outer circumference of the friction plate with each other. The second groove intersects the first groove and extends in a circumferential direction of the friction plate. As an alternative, a multiplate lockup clutch useful in fluid, primarily in a torque converter is provided with a multiplicity of friction plates, and each of the friction plates is shaped in a waveform as viewed in a circumferential direction thereof.

Abstract: A machining center has a tool change device provided above a horizontally mobile column that has a main spindle for holding a tool. A circular tool magazine for carrying a plurality of tools in a horizontal attitude is provided on a support base which is positioned above the region in which the mobile column moves. The support base is supported in a cantilever fashion by posts erected on a bed. The tool magazine rotates within a horizontal plane for indexing tools to a standby position. The tools are accommodated in pots suspended via rolling members from the body of the tool magazine and adapted to move along a ring-shaped path under the tool magazine body. The tool magazine body has a local removal opening or cutout, from where a shifter at a standby position carries a pot to a tool delivery position.