Abstract: A semiconductor integrated circuit such as an LSI circuit for use as a semiconductor static memory is fabricated on one chip and can handle signals on different interface levels. The semiconductor integrated circuit has ECL and CMOS input buffers which can be selected or simultaneously connected by a selector switch and ECL and CMOS output buffers which can be selected or simultaneously connected by a selector switch. The semiconductor integrated circuit with the selectively usable input and output buffers serves as either one of integrated circuits of different interface types. When the ECL input buffer and the CMOS output buffer are selected, an ECL-to-CMOS level converter and a sense amplifier may be implemented by one circuit block.

Abstract: A semiconductor integrated circuit device is equipped with a step-down circuit for producing a step-down power voltage from a power voltage level, and first and second component circuits of the semiconductor integrated circuit device are coupled between the power voltage line and the step-down power voltage line and between the step-down power voltage line and the ground voltage line, respectively, so that current passing through the first component circuit is reused by the second component circuit, thereby improving current consumption.

Abstract: A method of producing fiber reinforced plastic moldings.

Abstract: An electrophotographic photoreceptor is disclosed, which comprises an electrically conductive substrate having thereon a charge generating layer and a charge transporting layer, said charge generating layer containing a resin binder and a charge generating material (selenium or an alloy of selenium), and said resin binder being a polyvinyl acetal resin and preferably a partially acetallized polyvinyl butyral resin. The electrophotographic photoreceptor according to the present invention has a photosensitivity which is less dependent on surface voltage.

Abstract: A current mirror type level converter which makes it unnecessary to prepare the complementary signals of input signals by connecting a load transistor which is in the normally energized state regardless of the states of the input signals to the side where a mirror current flows and the load transistor also determines the output level. Further, a mirror input current is caused to flow by the result of a logic operation of the input signals, a mirror current supplying transistor is shared among a plurality of current mirror type level converters, an output signal is fed back positively accompanying a delay, and a feedback transistor to whose control terminal is applied the positive feedback signal is connected in parallel with the load transistor in order to realize an increase in the speed of the operation of the converter.

Abstract: An electrophotographic photoreceptor is disclosed, which comprises an electrically conductive substrate having thereon a photosensitive layer comprising a resin binder in which the following two kinds of charge generating materials are dispersed: (i) selenium or an alloy of selenium and (ii) a phthalocyanine derivative represented by the formula: ##STR1## wherein M represents AlCl, Mg, VO, InCl or H.sub.2. The electrophotographic photoreceptor exhibits a broad spectral sensitivity extending from the visible to the infrared regions of the spectrum and, therefore, can be suited for printers which utilize such light sources as semiconductor lasers, light emitting diodes, etc.

Abstract: A method of forming a composite material involves feeding materials to a kneader, kneading the materials, and injecting them from the kneader into a mold. The kneader is formed by a screw-type extruder having an ejection outlet at one end for extrusion into the mold. Various input ports are located axially along the extruder. Materials are fed into the kneader beginning at the inlet port most remote from the outlet end and proceeding successively to the inlet port nearest the outlet end. The materials are fed in successive order from those with the highest viscosity and lowest reactivity relative to the materials with the highest reactivity and lowest viscosity. For example, thermoplastic is fed to the inlet most remote from the outlet, and thermosetting resin is fed to the inlet nearest the outlet. In another aspect of the invention, in which thermoplastic and thermosetting resins are employed in roughly comparable amounts, an "island-in-sea" structure is desired.

Abstract: A lubricating grease exhibits good lubricating performance in a hot and high-vacuum environment, and contains an alkyl substituted tetraphenylether as a base oil having incorporated therein bentonite as a thickener and at least one solid lubricant selected from the group consisting of molybdenum disulfide and tungsten disulfide.

Abstract: An electrophotographic photoreceptor is disclosed, comprising a light-sensitive layer on an electrically conductive substrate, wherein the light-sensitive layer comprises particles of selenium or a selenium alloy as the charge generating material, and at least one compound represented by formula (I), ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group or an alkoxyl group; R.sub.2 and R.sub.3, which may be the same or different, represent each a hydrogen atom, an alkyl group, an alkoxyl group, a halogen atom, an alkoxycarbonyl group or a substituted amino group; and at least one compound represented by formula (II), ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, represent each a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, an alkoxycarbonyl group or a substituted amino group, as the charge transporting materials.

Abstract: A pair of flanges are fixed to a pipe end of a port of a plasma vacuum vessel and another pipe end to be connected thereto. These flanges each have a ring-shaped knife edge. A copper gasket is interposed between the respective knife edges of the two flanges. A predetermined number of bolts are tightened to fix the flanges to each other. As a result, the knife edges bite into the copper gasket, and a linear sealing load from the knife edges acts on the gasket, thereby sealing and isolating the space inside the port from the outside. The number n of bolts are given by3(B+28)/65-0.ltoreq.n.ltoreq.3(B+28)/65+0.02B,and the flange thickness t is given by ##EQU1## where B is the diameter of a circle passing through the respective central axes of the n number of bolts. Thus, the bolt number and the flange thickness are reduced without lowering the sealing performance.