Abstract: A depletion type MOS semiconductor device is provided which includes a p− well region formed in a surface layer of an n− drift layer, an n+ emitter region formed in a surface layer of the p− well region, an n− depletion region formed in the surface layer of the p well region, to extend from the n+ emitter region to a surface layer of the n drift layer, a gate electrode layer formed on a gate insulating film, over the n− depletion region, an emitter electrode formed in contact with surfaces of both of the n+ emitter region and the p− well region, and a collector electrode formed on a rear surface of the n− drift layer. Also provided is a MOS power IC in which the depletion type MOS semiconductor device is integrated with a vertical MOSFET or IGBT. The MOS power IC has a high breakdown voltage, and includes a circuit for feeding back an increase in the potential of the C terminal to the gate (gm) of the MOSFET or IGBT.

Abstract: A MOS type semiconductor apparatus is provided which includes a main MOS type semiconductor device, an internal control circuit connected between a control input terminal (G) and a control input port (g) of the main MOS type semiconductor device, and a protecting device connected between the control input terminal (G) and one of output terminals (S) of the apparatus, for protecting the semiconductor device or internal control circuit against overvoltage. The protecting device includes a first branch including a Zener diode (Z1p) consisting of a polysilicon layer deposited on an insulating film over the semiconductor substrate, and a second branch including a Zener diode (Z21) formed in a surface layer of the semiconductor substrate, and a diode (Z3pr) that consists of a polysilicon layer deposited on an insulating film over the semiconductor substrate, and is connected in series with the Zener diode (Z21) in a reverse direction. The first and second branches are connected in parallel with each other.

Abstract: A constant velocity universal joint is disclosed in which the end of a track groove 24 which opens to the open end surface 26 of the outer joint member 2 is formed with a cut portion 28a, 28b for the incorporation of a ball, thereby making the incorporation of balls possible without shifting the position of the open end surface 26. Therefore, the strength of the inlet portion of the outer joint member 2 is increased. Furthermore, since the ball incorporating angle .alpha. of the cage 5 can be decreased, it is possible to increase the width of the pocket column portion 58 of the cage 5 and increase the strength of the cage 5.

Abstract: A carburizing steel having the following chemical composition:C: 0.1 to 0.25%,Si: 0.2 to 0.4%,Mn: 0.3 to 0.9%,P: 0.02% or less,S: 0.001 to 0.15%,Cr: 0.5 to 0.9%,Mo: 0.15 to 1%,Al: 0.01 to 0.1%,B: 0.0005 to 0.009%,N: less than 0.006%, andthe balance of Fe and incidental impurities, wherein % is on a weight basis. Also disclosed are a method for the manufacture of the carburizing steel, parts of constant velocity universal joints for drive shafts made of the carburizing steel, as well as a method for the manufacture of such parts. The carburizing steel may further contain Ni: 0.3-4.0%, and one or more elements selected from the group consisting of Ti, Nb, V and Zr: 0.01-0.3% for each. The parts of constant velocity universal joints for drive shafts are manufactured using the carburizing steel of the present invention as a material. When they are carburized and quenched, they exhibit a surface hardness (Hv) of 650-800, core hardness (Hv) of 250-450, and carburized case depth of 0.2-1.2 mm.

Abstract: A battery pack 2 is detachably loaded with respect to an electronic equipment 1 through an electric connecting portion 3 to thereby deliver power. A CPU 2f of the battery pack 2 detects signal states of communication lines by using communication lines, e.g., data lines 3h, 3f and clock lines 3i, 3g for informing information between the battery pack 2 and the electronic equipment 1, whereby the battery pack 2 detects whether the battery pack is in the state electrically connected to the connecting portion of the electronic equipment 1 or in the state electrically detached from the connecting portion of the electronic equipment 1. Thus, the number of connecting terminals used in electrically connecting the battery pack with respect to the electronic equipment is reduced. As a result, miniaturization can be realized and there can result less unsatisfactory terminal contact.

Abstract: A carburizing steel having the following chemical composition:C: 0.1 to 0.25%,Si: 0.2 to 0.4%,Mn: 0.3 to 0.9%,P: 0.02% or less,S: 0.001 to 0.15%,Cr: 0.5 to 0.9%,Mo: 0.15 to 1%,Al: 0.01 to 0.1%,B: 0.0005 to 0.009%,N: less than 0.006%, andthe balance of Fe and incidental impurities, wherein % is on a weight basis. Also disclosed are a method for the manufacture of the carburizing steel, parts of constant velocity universal joints for drive shafts made of the carburizing steel, as well as a method for the manufacture of such parts. The carburizing steel may further contain Ni: 0.3-4.0%, and one or more elements selected from the group consisting of Ti, Nb, V and Zr: 0.01-0.3% for each.

Abstract: A power IC is provided which facilitates applying a high voltage to the gate electrode of the MOS semiconductor element for the power output of the power IC to break down defects around the gate oxide film in a short time thereby screening the power ICs efficiently. A gate terminal for testing is led out from the gate electrode of the MOS type semiconductor element for the power output of the power and the screening test is conducted by applying a high voltage to the gate terminal for testing. The expected bad influence of the applied high voltage on the control circuit is avoided by the level shift means or the switching means switched off only during the screening test and short-circuited after the test is over.

Abstract: A gate drive circuit device for a voltage-driven semiconductor element reduces the time to dissipate inductively stored electromagnetic energy and reduces current consumption by using cyclically charged capacitative storage to produce a control signal that is about twice the supply voltage. This permits full-ON dissipation of the stored energy after the circuit cuts off power to the inductive element. In one embodiment, the dissipation is chiefly in a voltage-regulator diode connected to limit the voltage appearing across a transistor. In another embodiment, a voltage regulator diode permits a transistor to operate in the full-on condition, while limiting the voltage across it to a value below its withstand voltage, whereby a maximum power dissipation current flows in the transistor. In a further embodiment a gate drive signal generator eliminates a voltage regulator diode from the conventional gate drive circuit device.

Abstract: The present invention provides an outer ring for a high strength constant velocity joint which has an excellent torsional strength and torsional fatigue strength and can provide an improved processability, and a process for producing the same. An outer ring used for a high strength constant velocity joint having an involute serration part and a screw part, the outer ring made of a steel containing:C: 0.45 to 0.53%, Si: 0.05 to 0.25%, Mn: 0.7 to 1.0%, Al: 0.01 to 0.05%, Mo: 0.2 to 0.4%, N: 0.003 to 0.012%, the remainder being Fe and inevitable impurities, the inevitable impurities including:Cr: 0.05% or less than 0.05%, P: 0.015% or less than0.015%, S: 0.01% or less than 0.01%, and O: 0.002% orless than 0.002%,wherein an old austenite crystal grain at the involute serration end is 8 or more in JIS grain size classification; a surface hardness at the end is 720 or more in Hv; and a ratio (CD/R) is 0.35 to 0.

Abstract: A driving joint includes a joint block secured to an output shaft of an electric driving unit, and a U-shaped connection plate connected at its opposite ends to the joint block and provided at its front wall with an elongated connection hole. The connection plate can be engaged within the U-shaped driven joint, and the elongated connection hole can be fitted to a connection plate of a T-shaped driven joint. With this arrangement, various types of jacks having different types of driven joints can be driven by a single electric tool.

Abstract: An electric driving unit is provided with a bracket. A slide plate is mounted on the bracket for sliding movement in a direction perpendicular to an axis of an output shaft of the electric driving unit. A first pivot holder is secured to one of side walls of the slide plate. A second pivot holder is mounted on the other side wall such that the second pivot holder can be adjusted in an advancing and retracting manner with respect to the first pivot holder. The first and second pivot holders are arranged such that they can hold opposite ends of any pivot shaft for various jacks even if the length of the shaft is different. With this arrangement, it is possible to provide an electric power tool for driving a jack which can be used for various types of jacks having pivot shafts of different lengths.

Abstract: The disclosed invention is designed to prevent the oscillation which often occurs in an over-current protection apparatus for an insulated gate controlled transistor. The apparatus improves the response in current detection, to prevent oscillation, and improves protection speed against over-current.

Abstract: A constant current circuit of the invention supplies a constant current to a load. The constant current circuit is formed of a current source device for providing an input current having a predetermined value with temperature dependence, a voltage divider device connected to the current source device, and an output transistor device. A reference transistor device or an adjusting transistor device is attached to the current source device. In case the reference transistor device is used, the voltage divider device divides a reference voltage of the reference transistor device to thereby generate a control voltage. In case the adjusting transistor device is used, an adjusting voltage from the voltage divider device is supplied to the adjusting transistor device to generate a control voltage. The output transistor device is connected to the load for controlling an output current supplied to the load in response to the control voltage.

Abstract: The invention detects the position of an eye in image of a driver's face quickly and with high reliability, even if the density of the driver's face image is not uniform on the right and left sides due to direct sunlight. Only one eye detection area is obtained on the dark side of the face image when the density of the face image is not uniform on the right and left sides. One eye window is detected in the one eye detection area, and an iris center is detected within the eye window to discriminate an inattentive driver who is dozing.

Abstract: An image of a face including eyes is converted into a binary coded image. The binary coded image is processed to detect first and second rectangular regions including image portions representing the eyes, respectively. For this purpose, the binary coded image is scanned in a series of horizontal scan lines to detect the X and Y coordinates of initial and final pixels of a line segment representing the longest width of the face. The X coordinates of each of the first and second rectangular regions are calculated based upon the detected X coordinates of the initial and final pixels. An image portion above the line segment is scanned to detect the Y coordinate of a lowermost one of pixels forming black image portions. The Y coordinates of the first and second rectangular regions are calculated based upon the detected Y coordinate of the lowermost pixel.

Abstract: A method for operating a shaft furnace is performed by charging different ore/coke ratio mixture in radially different positions in the furnace. The ore/coke mixture ratio may be determined according to desired heat distribution in radial direction. For this, at least two mutually independently determined ore/coke mixture ratio mixtures are provided in each charge cycle of the burden. The mixture to be charged in the central portion of the furnace may have a higher coke content or a lower ore content for better permeability to the heating gas.

Abstract: This invention relates to a process of resolving D and L-2-(4-hydroxyphenyl) glycine. DL-2-(4-hydroxyphenyl) glycine is treated with d-3-bromo-2-oxo-10-bornanesulfonic acid to form a mixture of d-3-bromo-2-oxo-10-bornanesulfonic acid salts of D- and L-2-(4-Hydroxyphenyl) glycine. This mixture is treated with a solvent selected from the group consisting of isobutyl alcohol, a mixture of a lower alkanol and chloroform, or a mixture of a lower alkanol and toluene. The precipitate containing the d-3-bromo-2-oxo-10 bornanesulfonic acid salt of L-2-(4-hydroxyphenyl) glycine is collected. The corresponding acid salt of D-2-(hydroxyphenyl) glycine is collected from the mother liquor. D- and L-2-(4-hydroxyphenyl) glycine are then recovered by conventional means.

Abstract: A quaternary ammonium salt of the formula: ##SPC1## ##EQU1## wherein A is a lower alkylene, a lower alkenylene or a lower alkadienylene; R.sub.1 and R.sub.2 are each lower alkyl which may be linked together directly or by an oxygen atom to form a saturated heterocyclic group; R.sub.3 is a lower alkyl, a halo (lower) alkyl, a lower alkynyl, phenyl (lower) alkyl which may have one or more halogen atoms as substituents on the phenyl ring, a lower alkenyl, a hydroxy (lower) alkyl, a carboxy (lower) alkyl or a lower alkenyloxycarbonyl (lower) alkyl; R.sub.4, R.sub.5 and R.sub.6 are each lower alkyl having 1 to 3 carbon atoms; X is an acid residue; and wherein the cyclohexyl ring may have one double bond, with the proviso that when the cyclohexyl ring has one double bond in the 1,2 position, A may not be ##EQU2## when X.sup.- is iodide, R.sub.4, R.sub.5 and R.sub.6 are all methyl; R.sub.1, R.sub.2 and R.sub.3 are all methyl or all ethyl, or R.sub.1 is methyl, R.sub.2 is ethyl and R.sub.