Abstract: Each pocket of a cage is composed of a pair of axial wall surfaces opposing each other along the axial line of the cage, a pair of circumferential wall surfaces opposing each other along the circumference direction of the cage, and radii linking the axial wall surfaces and circumferential wall surface. A ratio (R/d) of the radius of curvature R of the radii to the diameter d of the torque transmitting balls is set within a range 0.45 R/d 0.62. Also, the circumferential wall surfaces and radii are shaped along an arc having the radius of curvature R. Further, as to the axial wall surfaces, variance in the treatment margin is lessened by applying the grinding, hardened steel cutting, or the like after the heat treatment (carburized hardening and tempering) is applied to the cage.

Abstract: A centrifugal compressor for a turbo-fan engine includes a shroud covering the edges of vanes of a compressor wheel mounted on an outer shaft with a clearance &agr; left therebetween. A vertical section of the shroud includes an upstream portion extending in an axial direction, and a downstream portion curved radially outwards and extending from a downstream end of the upstream portion. The thickness of the downstream portion is increased gradually from the upstream side toward the downstream side. Thus, it is possible to prevent the variation of the clearance &agr; defined along the downstream portion of the shroud which exerts a large influence on the compression performance, thereby suppressing the reduction in performance due to the thermal expansion of the shroud.

Abstract: This invention provides a rolling mill and a rolling-mill train which are compact. Reducers to be coupled with them can be made compact. The inner surfaces of pipes to be rolled with the rolling mill and the rolling-mill train can be prevented from becoming squarish. The rolling mill comprises a plurality of rolls disposed symmetrically around the pathline of the rolling mill, an annular driving bevel gear of a large diameter for driving and rotating the rolls, an input-shaft mechanism for rotating the driving bevel gear, a plurality of transmission mechanisms disposed at regular intervals along the driving bevel gear, and a housing for holding them. The input-shaft mechanism (i) has an input shaft inserted in the housing from its outside and an input bevel gear of a small diameter mounted on the input shaft and engaging with the driving bevel gear and (ii) is disposed between two adjacent transmission mechanisms.

Abstract: A polytetrafluoroethylene fine powder excellent in powder flowability which comprises fine particles (the primary particle) having a mean particle diameter of 0.05 to 1 &mgr;m, an apparent density of 0.52 to 0.70 g/ml, a standard specific gravity (SSG) of 2.14 to 2.23, and a secondary mean particle diameter of 100 to 1000 &mgr;m, antidripping agent using the above polytetrafluoroethylene fine powder, flame resistive resin composition containing this powder, and composition for inhibiting dust characteristics containing this powder.

Abstract: An A/D converter includes a bit cell for converting an analog input signal to a single-bit digital signal. The bit cell includes an operational circuit for performing at least one of a first operation (Vin−VRH)+(Vin−VRL) and a second operation (VRH−Vin)+(VRL−Vin), where VRH is a high potential reference voltage, VRL is a low potential reference voltage and Vin is the analog input signal.

Abstract: Nitrate salt compositions with anti-ulcer medicines having formula (A) and (B) wherein the (A) class compounds: R=H, OCH3, OCHF2; R1=CH3, OCH3; R2=H, CH3; R3=CH3, CH2—CF3, (CH2)3—OCH3; wherein the (B) class compounds: RI3, RI4 equal to or different from each other, are respectively free valence hydrogen, (1), —CH2—N(CH3)2; Y=S, N—RI6, CRI7RI8; X=O, S, N—RI1; RI2=H, CH3; n=0, 1; Z=N—CN, N—SO2NH2, CH—NO2 or formula (VIIA) RI5=H, —NH—CH3, NH2; RI6, RI7, RI8, RI1, equal to or different from each other, are hydrogen, free valence. The invention also comprises the methods for the preparation of above salts.

Abstract: An engine lubrication system is provided which has an oil pump for supplying lubricating oil from an oil pan to an area that is to be lubricated, the oil pump being positioned outside-the-oil pan and driven by a camshaft. An oil passage formation member fitted to the lower face of an engine block so as to be housed in the oil pan, comprises an oil inlet passage for taking in oil from the oil pan to the oil pump and a relief valve for discharging excess oil discharged by the oil pump via an oil supply passage. When the relief valve opens, the excess oil is not directly discharged to the oil pan but is returned to the oil inlet passage from the oil supply passage via a connecting path. The space required for housing a vertical engine, and in particular in the vertical direction, can thus be reduced and the formation of bubbles in the oil inside the oil pan due to the oil discharged by the relief valve through the oil supply passage, can be prevented.

Abstract: Annular grooves are formed on both end surfaces of a recording drum to be rotated, and two balance weights are disposed inside each of the annular grooves. The balance weight is composed of a magnet, and is attracted to the end surface of the recording drum by its magnetic force. The two balance weights are arranged at a predetermined attaching angle such that an unbalance force caused by centrifugal forces developed by a plate and a movable clamp, for example, is canceled. Every time the size and the mass of the plate are changed, the positions of the two balance weights are adjusted, so that forced vibration in the recording drum is restrained.

Abstract: A writable optical disc has an information writing track, and a guiding track for introducing a laser beam to the information writing track. The guiding track has prepit information recorded thereon, the prepit information including at least address information of the optical disc. The prepit information is recorded on the guiding track at a position where interference of adjacent guiding tracks with the prepit information is prevented. The information writing track is a groove track, and the guiding track is a land track.

Abstract: When a turning state of a subject vehicle is detected, the action timing of the contact avoidance support device is slower than when the turning state is not detected. When an action timing determining part 22 estimates that there is the possibility of the subject vehicle coming into contact with the vehicle in front and a turning state of the subject vehicle is detected based on the output from a transversal acceleration sensor S4, a changing rate of the steering angle sensor S5, and a yaw rate sensor S3, a compensation interval calculating part 23 calculates a compensation interval depending on the size of the detected turning state (the amount of the steering angle, the changing rate of the steering angle, and the transversal acceleration). The action timing of the brake actuator 12 is slowed by this compensation interval.

Abstract: A hydrodynamic type bearing unit comprises a shaft member 2, a bearing member 4 and a bearing clearance formed between the shaft member 2 and a bearing member 4 to produce a hydrodynamic pressure during the rotation of a shaft member 2. The bearing clearance is composed of a first clearance C1 on one axial side and a second clearance C2 on the other axial side and the first and second clearances C1 and C2 are mutually oppositely inclined against an axial direction.

Abstract: An IrDA modulation/demodulation integrated circuit device modulates and demodulates a signal by an IrDA-complying method that meets the SIR standards. The IrDA modulation/demodulation integrated circuit device has a CRC block for performing calculation on data consisting of A, C, and I fields to calculate an FCS and appending an FCS field to the data, a data transparency control block for performing data transparency control for transmission on the data output therefrom, and a flag block for adding a BOF flag and an EOF flag at the head and the tail, respectively, of the data obtained therethrough. The IrDA modulation/demodulation integrated circuit device also has a flag block for removing the BOF and EOF flags from a demodulated signal, a data transparency control block for performing data transparency control on the basis of the data output therefrom, and a CRC block for checking for a transfer error by checking the value in the FCS field.

Abstract: A CD changer support device mountable in a trunk forming a luggage compartment of a motorcycle, includes a storage recess to store a CD changer. The storage recess is provided in a luggage compartment-forming wall of the trunk. A swing support device allows the CD changer to swing between a protruding position where the opening of the CD changer protrudes inside the luggage compartment and a storage position where the CD changer is stored within the storage recess. A cover plate covers the CD changer. When the CD changer is in the storage position, the cover plate blocks the opening of the storage recess so as to be flush with the inner surface of the luggage compartment-forming wall. When an operating force is applied to the swing support device, the CD changer swings between the protruding position and the storage position.

Abstract: A surface lighting device includes a stick type light guide body. The stick type light guide body receives a light emitted from a light emitting surface of an LED fixed on a substrate from a side surface which faces to the LED and emits the received light from a side surface which faces to a light guide plate. The emitted light is incident from a side surface of the light guide plate and is emitted from an upper surface of the light guide plate. Then, the substrate is formed with a through hole, and the stick light guide is formed with a protrude portion on the lower surface thereof. By fitting the protrude portion into the through hole, the LED and the stick type light guide body are relatively positioned such that the light emitting surface of the LED and the side surface of the stick light guide are brought into close contact with each other.

Abstract: The invention concerns a method of detecting a substance to be analyzed in a sample by contacting the sample with a probe which contains nucleobases and two or more non-nucleosidic marker-promoting groups in conditions in which the substance to be analyzed binds indirectly or directly to the probe. The method enables the binding product to be detected. The probe is preferably branched.

Abstract: A drive power supply method for a semiconductor device is provided. The semiconductor device has an internal supply voltage generating circuit. First and second internal circuits are connected to the internal supply voltage generating circuit. Drive power is supplied to the first and second internal circuits from the internal supply voltage generating circuit. The second internal circuit operates in standby mode, power-down mode and active mode, so that the internal supply voltage is stably retained in the standby mode or power-down mode, and the consumed current is reduced.

Abstract: The invention relates to a portable presentation device (1) comprising a container having a lid (3) and a base (4), a first display device (7) and a controller (10) for driving the first display device (7). The portable presentation device is in the form of a briefcase, with the first display device (7) built into the lid (3) of the briefcase. With the lid (3) opened so that the first display device (7) is perpendicular to the base, presentations may be conveniently given to a small group of viewers with the first display device (7) being manipulable by means of the controller (10). The controller (10) may also have its own display (11) so that the operator may easily view and control the presentation himself.

Abstract: An automatic ice maker of the open-cell type including a box-type housing, a plurality of spaced ice making cell casings arranged on a horizontal plane in an upper portion of the housing and opened downward, a cooling pipe mounted on the cell casings to be supplied with refrigerant from a freezing circuit, and a sprinkler mounted within a bottom portion of the housing and placed under the cell casings to spout ice making water into the respective cell casings, wherein a base plate is mounted within the upper portion of the housing to form an ice making chamber, and wherein the ice making cell casings are secured to a bottom surface of the base plate, while the cooling pipe is mounted on the base plate at positions located above the cell casings and welded to an upper surface of the base plate.

Abstract: Fibers obtained by opening waste plastics of different kinds and fibers obtained by opening wastepaper are mutually woven, and molded under heat and pressure. As a result, different kinds of waste plastics can be recycled without requiring separation or classification.

Abstract: Precharge circuits comprises PMOS transistors Q6 and Q7 each connected between a bit line and a power source potential VDD, PMOS transistors Q2, Q5, Q8 and Q11 connected between respective bit line pairs, and PMOS transistors Q21 and Q23 connected between respective adjacent bit lines of adjacent bit line pairs, wherein the gate electrodes of the PMOS transistors are each connected to a precharge control signal line PCG. The defect caused by omission of transistors from the prior art circuits is compensated by the PMOS transistors Q21 and Q23, each of which is required to be provided for two bit line pairs. With this and transistors of adjacent unit precharge circuits are arranged in plain symmetry, there is no need to provide transistors to be directly connected between bit lines *B2 and B3, and an average number of PMOS transistors for each bit line pair is less than 2.5.