Abstract: A gas oil desulfurization catalyst and the desulfurization method are disclosed, which comprises(A) at least one kind of a metal selected from the group consisting of Mo and W,(B) at least one kind of a metal selected from the group consisting of Co and Ni, and(C) at least one kind of a metal selected from Re and Ir, as the active components.

Abstract: A lubricating grease composition includes a grease containing a base oil and a thickening agent consisting of a mixture of tricalcium phosphate represented by the formulaCa.sub.3 (PO.sub.4).sub.2and a urea compound and, incorporated as additives in the grease, (A) a sulfurized molybdenum dialkyldithiocarbamate represented by the formula ##STR1## wherein R.sup.1 and R.sup.

Abstract: A grease composition for a tripod type constant velocity joint, which includes a base oil, a urea compound as a thickening agent, and not more than 10% by weight of at least one of (A) a molybdenum dialkyldithiocarbamate and (B) a molybdenum dialkyldithiophosphate or diaryldithiophosphate, in which the base oil has a kinematic viscosity of from 3.0 to 7.5 mm.sup.2 /sec at 100.degree. C. The grease composition applied to a tripod type constant velocity joint reduces the induced thrust force and thereby suppresses vibration, such as a shudder of a car body upon starting off and acceleration.

Abstract: A method for producing ultra fine particles is disclosed, wherein the method includes wet grinding particles with a media agitation mill, wherein ceramic particles having an average diameter of about 300 .mu.m or smaller are used as grinding media in the media agitation mill. Desirably, the media has an average particle diameter standard deviation of 15 or smaller, a sphericity of 1.07 or smaller, and a density of 6.0 g/cm.sup.3 or more.

Abstract: A grease composition comprising a grease containing, in a base oil thereof, from 2 to 40% by weight, based on the total composition, of tricalcium phosphate [Ca.sub.3 (PO.sub.4).sub.2 ], the grease further containing (A) from 0.5 to 10% by weight, based on the total composition, of a molybdenum dialkyldithiocarbamate sulfide and (B) from 0.1 to 5% by weight, based on the total composition, of at least one of a zinc dialkyldithiophosphate and triphenyl phosphorothionate. The grease composition is excellent in mechanical stability, heat resistance, extreme pressure properties, and wear resistance.

Abstract: An electro-luminescence device is described, which includes a laminate composed of a transparent substrate having successively laminated thereon a transparent electrode, a luminous layer, a dielectric layer, and a back electrode, with a back protective material being adhered to the back electrode through an adhesive resin film, wherein the back protective material is a moisture impermeable protective material and the adhesive resin film is a thermo-plastic resin film having a thickness of from 10 to 200 .mu.m, and a method for production thereof is also described.

Abstract: A touch sensor has an LC oscillator circuit 1, 2, 3, and 4, a rectification circuit 10 which rectifies outputs of the oscillator circuit 1, 2, 3, and 4, a voltage detection circuit 12, 13, 14, and 15 which detects the rectified voltage, and a sensor plate 8 connected to the input section of the rectification circuit, and detecting contact of a finger with the sensor plate 8 by enabling the voltage detection circuit 12, 13, 14, and 15 to detects a drop of equivalent impedance due to a finger touching the sensor plate 8 as a change of voltage.

Abstract: A composition of (R)-isomer and (S)-isomer of a liquid crystal compound represented by the formula; ##STR1## wherein X represents --O-- or a direct bond, Z represents a halogen-substituted alkyl group selected from a group consisting of --CF.sub.3, --CHF.sub.2, --CH.sub.2 F, --C.sub.2 F.sub.5, --CClF.sub.2, -CCl.sub.2 F, --CCl.sub.2 CF.sub.3, and --C.sub.3 F.sub.7, m represents an integer of from 1 to 20, n represents an integer of from 1 to 20, and * represents an asymmetric carbon, and the optical purity of said composition is high enough to exhibit optically tristable states in S*(3) phase when electric voltage is applied.

Abstract: A method of forming p-type silicon carbide which comprises using reactive source gases comprising silane, hydrogen, trimethylboron, and either diborane or boron trifluoride, to thereby attain a widened band gap by the action of the carbon contained in the trimethylboron.

Abstract: A process for producing an integrated solar cell comprising deposited unit cells having a p-i-n junction, with an n-type layer forming an n-p Junction between unit cells comprising a microcrystalline amorphous silicon layer, in which said microcrystalline amorphous silicon layer is subjected to a hydrogen discharge treatment for a given period of time. By the hydrogen discharge treatment, the film resistance of the n-type layer is reduced to accelerate ohmic property with a p-type layer thereby achieving increased conversion efficiency.

Abstract: A photovoltaic device that comprises an insulating transparent substrate coated with a light-receiving surface electrode formed of a thin metal film which in turn is overlaid with an amorphous semiconductor layer and a back electrode, said thin metal film being adapted for use as a mirror.

Abstract: An integrated photovoltaic device which comprises a plurality of amorphous silicon based solar cells each comprising on the light-receiving side of a common transparent substrate, a transparent electrode, a metal electrode on the transparent electrode, and an amorphous semiconductor layer interposed between the metal electrode and the transparent electrode, said plurality of solar cells being interconnected in a series or series-parallel fashion by means of said transparent electrode and said metal electrode, said metal electrode being formed of a metal film comprising, in superposition in order from the amorphous semiconductor layer side, layers of aluminum, an additive metal for aluminum bronze, and copper.

Abstract: A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 3 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 3 to 18 carbon atoms; X represents ##STR2## (A) and (B) each represents a group selected from the group consisting of ##STR3## and * indicates an optically active center.

Abstract: Liquid crystal compounds represented by the formula; ##STR1## in which Ra means an alkyl group of 1-20 carbon atoms or an alkoxy group of 1-20 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 1-20 carbon atoms, an alkoxy group of 1-20 carbon atoms, or an alkanoyl methyl group having 1-20 carbon atoms in the alkyl; ##STR2## Z means a fluorinated alkyl or a fluorinated haloalkyl; m is an integer of from 1 to 3; n is an integer of from 0 to 2 where when n is 0, Y is a single bond; and * shows an optically active center, which have a larger spontaneous polarization, high speed of response and good orientation, and show tristable liquid crystal phase.

Abstract: A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 1 to 18 carbon atoms; R.sub.2 represents an optically active group represented by formula (II), (III) or (IV): ##STR2## wherein R.sub.3 represents a lower halo-alkyl group having from 1 to 2 carbon atoms; X represents --O--, --COO--, --OCO-- or a single bond; Y represents --CH.sub.2 O-- or --COO--; and Z represents --COO-- or --O--, l represents 0 or 1, provided that when l is 0, Y is a single bond; n represents an integer of from 1 to 18; and * indicates an optically active center. The compound exhibits three stable states of molecular orientation.

Abstract: The invention lies particularly in novel compounds represented by the general formula; ##STR1## in which Z means CF.sub.3, CHF.sub.2, CH.sub.2 F, CClF.sub.2, CCl.sub.2 F, CHCLF, CCl.sub.3, C.sub.2 F.sub.2 or a perfluoroalkyl group of 3 or more carbon atoms, m and n are same or different with each other and represent an integral of 1-20, which are ferroelectric and chiral smetic liquid crystals of a large spontaneous polarization, a high speed of response and a good orientation, and showing a liquid crystal phase of tristable state and an electoclinic effect to be used as a liquid crystal element superior in an image display response.

Abstract: Novel ferroelectric and antiferroelectric liquid crystal compounds of the invention, which comprise those showing optically tristable states in phase S*.sub.(3), have a wide range of phase transition temperature so as to be not only preferably used solely as display element material but also mixed with any other liquid crystal to desiredly expand the above range wider and make optical response time faster.Typical compounds are represented by ##STR1## in which Z means CF.sub.3, C.sub.2 F.sub.5, CHF.sub.2, CH.sub.2 F, CClF.sub.2, CCl.sub.2 F, CF.sub.3 CCl.sub.2 or C.sub.3 F.sub.7, m' and n' are same or different with each other and each is an integer of 1-20.

Abstract: Novel ferroelectric liquid crystal compounds showing three stable liquid crystal states so as to give particular optical response wave shape as well as particular optical and electric responses to impressed voltage of triangle wave shape in comparison with usual ferroelectric liquid crystals of bistable phase, whereby it is possible to provide electrooptical devices having larger picture area at lower cost. Typical compounds are represented by ##STR1## wherein n is an integer of 3-18 and m is an integer of 5-12.

Abstract: A photovoltaic device and a process for manufacturing a photovoltaic device which includes providing a plurality of spaced transparent electrode layer regions on an insulating transparent substrate plate, forming an amorphous semiconductor layer over the spaced transparent electrode layer regions, forming a patterned conductive printed electrode layer over the amorphous semiconductor layer to form a plurality of photovoltaic regions, and then irradiating the photovoltaic regions with a laser beam from the substrate plate side to heat and melt the transparent electrode, amorphous semiconductor, and conductive printed electrode in each photovoltaic region, thereby forming in each photovoltaic region a conductive path made of an alloy formed by the melting, thus electrically connecting the photovoltaic regions in series.

Abstract: A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 5 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 4 to 15 carbon atoms; X represents a single bond, --O--, ##STR2## and * indicates an optically active center. The compound exhibits three stable states of molecular orientation.