Abstract: A sheet supplying device, which supplies a sheet to an image forming section, has a sheet feeding roller, a sheet stacking section, and a guiding member. The sheet feeding roller sends sheets out one-by-one. The sheet stacking section can be stacked with plural sheets and pushes a sheet against the sheet feeding roller. The guiding member is able to move between a guiding position and a withdrawn position. At the guiding position, at a time of double-sided printing, the guiding member re-supplies to the image forming section an inverted sheet which is sent-in by a sheet re-supplying section. At the withdrawn position, the guiding member is moved toward the sheet feeding roller and feeding of the sheet of the sheet stacking section is possible.

Abstract: A hydrogen sensor which may be employed in an overcharge/overdischarge detector for a battery and a hydrogen leakage detector for a fuel cell is provided. The hydrogen sensor includes a sensor element and a diffused resistor member. The gas to be measured passes through the diffused resistor member and reaches the sensor element. The sensor element outputs a signal indicative of the concentration of hydrogen contained in the gas as a function of a decrease in concentration of oxygen contained in the gas arising from reaction of the hydrogen on the oxygen. The diffused resistor member is so designed that speeds of diffusion of the hydrogen and the oxygen when passing through the diffused resistor member are different from each other for increasing the sensitivity of measurement of the concentration of hydrogen.

Abstract: An annular support ring 32 is fitted onto the outer periphery of each trunnion 22. This support ring 32 and the roller 34 are unitized via a plurality of needle rollers 36 to constitute a roller assembly capable of relative rotations therebetween. In longitudinal section, each trunnion 22 has an outer periphery of straight shape, parallel to the axis of the trunnion 22. In cross section, the trunnion 22 has a generally ellipse shape with the major axis orthogonal to the axis of the joint. The inner periphery of each support ring 32 is arcuate and convex in section. This combines with the general elliptic cross sections of the trunnions 22 and the provision of predetermined clearances between the trunnions 22 and the support rings 32, to allow the support rings 32 to move along the axial directions of the trunnions 22 as well as make tilting movements with respect to the trunnions 22.

Abstract: A relay 201 is provided for opening and closing the signal path connecting the measurement circuits and an electrode, and a relay 213 is provided for opening and closing a DC power line extending from an AC-DC adaptor 3 connected to a commercial AC power supply 5. In the measurement of the impedance, before supplying the current through the body of the subject, the relay 213 is opened to disconnect the commercial AC power supply 5 from a main unit 2 and a personal computer 1 so that the circuits are driven by the DC power from a battery 102. After that, the relay 201 is closed to connect the measuring circuit with the electrodes 10, 11, a weak current is passed through the body of the subject via the electrodes 10, and a voltage generated in the body by the current is measured with the electrodes 11.

Abstract: A constant velocity universal joint which can provide an improved strength in a stem portion by simple and effective countermeasure. The constant velocity universal joint include a bowl-shaped mouth portion and an outer joint member having the stem portion with a serration formed on its outer peripheral surface. The stem portion extends from a bottom portion of the mouth portion in its axial direction as an integrated part. An induction hardened area C is formed in the bottom portion of the mouth portion.

Abstract: A semiconductor device realizes a high electrostatic discharge withstanding capability and a high surge withstanding capability within the narrow chip area of a lateral MOSFET used in integrated intelligent switching devices, double-integration-type signal input and transfer IC's, and combined power IC's. The semiconductor device includes a vertical bipolar transistor in which a base is electrically connected to an emitter and a collector, and a lateral MOSFET including a drain electrode connected to a surface electrode. The vertical bipolar transistor absorbs electrostatic discharge or surge energy when a high electrostatic discharge voltage or a high surge voltage is applied and limits the electrostatic discharge voltage or the surge voltage to be lower than the breakdown voltage of the lateral MOSFET.

Abstract: A semiconductor device realizes a high electrostatic discharge withstanding capability and a high surge withstanding capability within the narrow chip area of a lateral MOSFET used in integrated intelligent switching devices, double-integration-type signal input and transfer IC's, and combined power IC's. The semiconductor device includes a vertical bipolar transistor in which a base is electrically connected to an emitter and a collector, and a lateral MOSFET including a drain electrode connected to a surface electrode. The vertical bipolar transistor absorbs electrostatic discharge or surge energy when a high electrostatic discharge voltage or a high surge voltage is applied and limits the electrostatic discharge voltage or the surge voltage to be lower than the breakdown voltage of the lateral MOSFET.

Abstract: Contents encrypted by content encryption keys AER1, AER34 and content decryption keys ADR1, ADR34 encrypted by encryption keys BE4, BE6, BE7 are recorded on recording media 301, 302. The encryption keys BE4, BE6, BE7 differ among playback regions 1 to 4 preset to control the permission and inhibition of content playback. Content playback regions can be limited by using only the encryption keys of regions where playback is permitted. Even if a key is leaked out, the other playback regions are not affected because the encryption keys differ among playback regions and therefore the copyright protection function is increased.

Abstract: A semiconductor device is configured to prevent destruction of elements and/or miss-operation of the circuit by parasitic effects produced by parasitic transistors when a MOSFET of a bridge circuit is formed on a single chip. A Schottky junction is formed by providing an anode electrode in an n well region where a source region, a drain region, and a p well region of a lateral MOSFET. A Schottky barrier diode constituting a majority carrier device is connected in parallel with a PN junction capable of being forward-biased so that the PN junction is not forward-biased so that minority carriers are not generated, and thereby suppressing parasitic effects.

Abstract: A sheet transporting device includes an enclosure having a first guide part at least a part of which can be exposed to outside, wherein another sheet transporting device is attached to the enclosure, the another sheet transporting device has a second guide part at least a part of which is exposed to outside, and at least a part of a sheet transporting passage includes the first guide part and the second guide part. An image forming apparatus includes an enclosure including a first guide part at least a part of which can be exposed to outside, wherein a sheet transporting device is attached to the enclosure, the sheet transporting device includes a second guide part at least a part of which is exposed to outside, and at least a part of a sheet transporting passage includes the first guide part and the second guide part.

Abstract: A semiconductor device is configured to prevent destruction of elements and/or miss-operation of the circuit by parasitic effects produced by parasitic transistors when a MOSFET of a bridge circuit is formed on a single chip. A Schottky junction is formed by providing an anode electrode in an n well region where a source region, a drain region, and a p well region of a lateral MOSFET. A Schottky barrier diode constituting a majority carrier device is connected in parallel with a PN junction capable of being forward-biased so that the PN junction is not forward-biased so that minority carriers are not generated, and thereby suppressing parasitic effects.

Abstract: A vehicle wheel bearing apparatus which can increase the strength and durability of the hub wheel under rotary bending conditions as well as lighten the apparatus without changing the configuration and dimension of the wheel mounting flange and without causing surface run-out has an outer member formed with double row outer raceway surfaces on its inner peripheral surface. An inner member is formed with double row inner raceway surfaces arranged opposite to the double row outer raceway surfaces. Double row rolling elements are freely rollably contained between the outer and inner raceway surfaces, respectively, of the outer and inner members. A wheel mounting flange is integrally formed with either one of the outer or inner members. At least one of the outer and inner members, on which the wheel mounting flange is formed, is heat treated and their raceway surfaces are hardened by quenching to a predetermined surface hardness.

Abstract: An annular support ring 32 is fitted onto the outer periphery of each trunnion 22. This support ring 32 and the roller 34 are unitized via a plurality of needle rollers 36 to constitute a roller assembly capable of relative rotations therebetween. In longitudinal section, each trunnion 22 has an outer periphery of straight shape, parallel to the axis of the trunnion 22. In cross section, the trunnion 22 has a generally ellipse shape with the major axis orthogonal to the axis of the joint. The inner periphery of each support ring 32 is arcuate and convex in section. This combines with the general elliptic cross sections of the trunnions 22 and the provision of predetermined clearances between the trunnions 22 and the support rings 32, to allow the support rings 32 to move along the axial directions of the trunnions 22 as well as make tilting movements with respect to the trunnions 22.

Abstract: An annular support ring 32 is fitted onto the outer periphery of each trunnion 22. This support ring 32 and the roller 34 are unitized via a plurality of needle rollers 36 to constitute a roller assembly capable of relative rotations therebetween. In longitudinal section, each trunnion 22 has an outer periphery of straight shape, parallel to the axis of the trunnion 22. In cross section, the trunnion 22 has a generally ellipse shape with the major axis orthogonal to the axis of the joint. The inner periphery of each support ring 32 is arcuate and convex in section. This combines with the general elliptic cross sections of the trunnions 22 and the provision of predetermined clearances between the trunnions 22 and the support rings 32, to allow the support rings 32 to move along the axial directions of the trunnions 22 as well as make tilting movements with respect to the trunnions 22.

Abstract: To accurately measure the muscle mass, body-fat ratio and/or other information of the subject, the human body is divided into nine segments including the trunk, right and left forearms, right and left upper arms, right and left thigh, and right and left crura. Four distal voltage-measuring points Pv are determined at the wrists and ankles, and four proximal voltage-measuring points Pv are determined at the elbows and knees. Four current-carrying electrodes and four measuring electrodes are used. First, the measuring electrodes are attached to distal points, and the impedances of four limbs and the trunk are measured. Then, the measuring electrodes are moved to proximal points, and the impedances of four limbs and the trunk are measured. From the measurement result, the measurement value is calculated for each segment.

Abstract: A constant velocity universal joint which can provide an improved strength in a stem portion by simple and effective countermeasure. The constant velocity universal joint include a bowl-shaped mouth portion and an outer joint member having the stem portion with a serration formed on its outer peripheral surface. The stem portion extends from a bottom portion of the mouth portion in its axial direction as an integrated part. An induction hardened area C is formed in the bottom portion of the mouth portion.

Abstract: A relay 201 is provided for opening and closing the signal path connecting the measurement circuits and an electrode, and a relay 213 is provided for opening and closing a DC power line extending from an AC-DC adaptor 3 connected to a commercial AC power supply 5. In the measurement of the impedance, before supplying the current through the body of the subject, the relay 213 is opened to disconnect the commercial AC power supply 5 from a main unit 2 and a personal computer 1 so that the circuits are driven by the DC power from a battery 102. After that, the relay 201 is closed to connect the measuring circuit with the electrodes 10, 11, a weak current is passed through the body of the subject via the electrodes 10, and a voltage generated in the body by the current is measured with the electrodes 1.

Abstract: A semiconductor device realizes a high electrostatic discharge withstanding capability and a high surge withstanding capability within the narrow chip area of a lateral MOSFET used in integrated intelligent switching devices, double-integration-type signal input and transfer IC's, and combined power IC's. The semiconductor device includes a vertical bipolar transistor in which a base is electrically connected to an emitter and a collector, and a lateral MOSFET including a drain electrode connected to a surface electrode. The vertical bipolar transistor absorbs electrostatic discharge or surge energy when a high electrostatic discharge voltage or a high surge voltage is applied and limits the electrostatic discharge voltage or the surge voltage to be lower than the breakdown voltage of the lateral MOSFET.

Abstract: A shaft member 1 and an outer peripheral member 2 disposed on the outer periphery of the shaft member 1 are joined together by splines 3 through which the teeth 31 of the shaft member 1 and the teeth 32 of the outer peripheral member 2 are fitted together. At one axial end of each spline 3, a trough 31 in the tooth 31 of the shaft member 1 is diametrically increased to provide a diametrically increased region S1. In this diametrically increased region S1, there is defined a fit region F for the tooth 31 of the shaft member 1 and the tooth 32 of the outer peripheral member 2.

Abstract: The power transmission shaft 12 is made by applying induction hardening to carbon steel with hardening ratio in a range from 0.25 to 0.50. For the carbon steel, one containing 0.39 to 0.49% of C, 0.4 to 1.5% of Si, 0.4 to 1.0% of Mn, 0.025% or less S, 0.02% or less P and 0.01 to 0.1% of Al by weight as the basic components, with the rest comprising Fe and inevitable impurities is used. This makes it possible to achieve higher strength and lighter weight of the power transmission shaft.