摘要:
According to an embodiment of the present invention, an electrostatic breakdown protection method protects a semiconductor device from a surge current impressed between a first terminal and a second terminal, the semiconductor device including: a diode impressing a forward-bias current from the first terminal to the second terminal; and a bipolar transistor impressing a current in a direction from the second terminal to the first terminal under an ON state, a continuity between a collector terminal and an emitter terminal of the bipolar transistor being attained before a potential difference between the first terminal and the second terminal reaches such a level that the diode is broken down.
摘要:
A curable composition comprises (A) a vinyl polymer having hydrolyzable silyl groups and/or SiOH groups and organic UV absorbing groups bonded to side chains, (B) an organic UV absorber having a molecular weight of at least 500 and a weight retentivity of at least 95% when held at 150° C. for 24 hours in an open state, and (C) an organosilicon compound containing a nitrogen atom and an alkoxysilyl group in the molecule. The curable composition is coated and cured to an article, whereby the article is endowed with satisfactory weathering resistance while minimizing coloration or degradation.
摘要:
A curable composition comprises (A) an organic/inorganic composite in which a hydrolyzable silyl group and/or SiOH group-containing polysiloxane is bonded to a vinyl polymer through a Si—C bond, and (B) an organic UV absorber having a molecular weight of at least 500 and a weight retentivity of at least 95% when held at 150° C. for 24 hours in an open state. The curable composition is coated and cured to an article, whereby the article is endowed with satisfactory weathering resistance while minimizing coloration or degradation.
摘要:
A precursor wire for the Nb—Sn phase superconducting wire includes a structure having a plurality of modules each composed by arranging a Sn-based metal core in a Cu-based metal matrix and the Nb-based metal filaments concentrically around the core is obtained by adjusting the amount of the Sn-based metal cores in each module to form the boundaries of the ε-phase bronze layers to be formed by reaction of Sn of the Sn-based metal cores and Cu-based metal matrix by the heat-treatment in the range including all of or a ratio of approximately not lower than 0.08 and not more than 0.32 of the existence region the Nb-based metal filaments.
摘要:
The invention provides a semiconductor apparatus capable of achieving a device having a snap-back resisting pressure of about 5 to 10 V by a self-aligning process. The semiconductor apparatus includes two or more sub-gates placed next to a main gate at a predetermined interval, and low concentration layers placed continuously from the ends of source/drain layers to near the end of the main gate, having a potential type same as that of the source/drain layers, and having an impurity concentration lower than that of the source/drain layers.
摘要:
This invention provides polypropylene resin compositions which have sharply improved balance of physical properties in comparison with the related polypropylene materials, are materials that can be used in both interior and exterior parts of automobiles, have excellent thin-wall moldability and can sharply reduce generation of flow marks. Particularly, it provides a polypropylene resin composition which comprises specified amounts of (A) a specified ethylene-propylene block copolymer, (B) a specified thermoplastic elastomer and (C) talc, wherein it has specified values of physical properties measured by ASTM and has a degree of b-axis orientation of 720 or more which is calculated from the ratio of differential peak intensities measured by wide-angle X-ray diffraction of the central area of an ASTM No. 1 dumbbell prepared by injection molding.
摘要:
This invention has its purpose in providing a brake fluid pressure control device which is simply structured but still satisfies a driver's braking feeling and which controls wheel cylinder pressure without using master cylinder pressure. The brake fluid pressure control device of this invention is comprised of a master cylinder, a pump, a pipe which connects the suction side of the pump to the pipe of the master cylinder, a closed storage chamber with a fixed capacity which is provided in the pipe and filled with brake fluid, a check valve which is installed closer to the master cylinder than the storage chamber and which allows bidirectional flow of brake fluid from the master cylinder to the suction side of the pump, a control valve used to open and close the passage between the storage chamber and the suction side of the pump, a prohibition means which prohibits flow of brake fluid between the master cylinder and wheel cylinder when brake fluid is drawn from the storage chamber and discharged, a pressure rise/drop control means which controls rise and drop of brake pressure exerted on the wheel cylinder, and a reservoir.
摘要:
A suspension control system for an automotive vehicle is provided which is operable to control transmission of vibratory energy from a road surface to a vehicle body. This suspension control system includes a variable damping force shock absorber, a vertical speed sensor which detects vertical speed of the vehicle body, a relative displacement speed sensor which detects the relative displacement between the vehicle body and a road wheel, and a damping force control unit which is operable to modify a damping force of the variable damping force shock absorber over a range from preselected maximum to minimum values based on the vertical speed and the relative displacement speed. When the vertical speed and the relative displacement speed are smaller than preselected first and second threshold values respectively during vibratory motion of the vehicle body wherein the vertical speed and the relative displacement speed are in the same phase, the damping force control unit controls the variable damping force shock absorber to produce the damping force of a level smaller than the maximum value by a preselected value.
摘要:
A digital filter for a digital weigher reduces a calculation time in an adapted filter while maintaining weighing accuracy, a digital weigher includes the filter for the weigher, and a wave filtering process method uses the digital filter for the digital weigher. A fixation section of a FIR filter removes an oscillating component in a predetermined frequency range, from a digital weighing signal. A determination device determines whether an amplitude of an oscillating component contained in a digital weighing signal derived by performing a wave filtering process falls within a predetermined damping range. A control device changes a frequency range of an oscillating component to be removed by an adaptive section of the filter based on a result of the determination. The adaptive section of the filter performs the wave filtering process with respect to the oscillating component in the frequency range changed by the control device.
摘要:
A plastic article is provided wherein a plastic substrate is coated with multiple resin layers including a primer layer comprising a polymer having a UV-absorptive functional group incorporated therein and a weather resistant hardcoat layer comprising a reaction product of alkoxysilyl-containing benzophenone and/or a hydrolyzate thereof.