Abstract: The present invention provides a porous titania , which has an anatase-form crystalline structure, an anatase-form crystallite diameter of 3 nm to 10 nm, a degree of anatase crystallinity of 60% or more, a BET specific surface area of 10 m2/g or more, a total pore volume of 0.05 cm3/g or more, and a volume for pores having a pore radius of 1 nm or more of 0.02 cm3/g or more, and the porous titania and the catalyst comprising the porous titania of the present invention exhibit an excellent catalytic activity for removal of nitrogen oxides, oxidation of organic substances, decomposition of dioxine compounds, as well as decomposition and removal of organic solvents, agricultural chemical and surfactant.

Abstract: The waterproof electrical connector achieves a seal between an end portion of a socket housing and a seal member in a pin housing. The seal member may be elastic, and forms a seal that allows for easy withdrawal and insertion of the socket housing in the pin housing. The seal member may have an arcuate surface that engages the end portion of the socket housing. The socket housing has a rectangular transverse cross-section that allows for dense packing of female terminals.

Abstract: Disclosed is a plasma chemical vapor deposition apparatus for forming an amorphous thin film, a microcrystalline thin film or a polycrystalline thin film on a surface of a target substrate by utilizing a glow discharge generated by an electric power supplied from a power source, comprising a reaction vessel, means for supplying a reactant gas into the reaction vessel, discharge means for discharge a waste gas of the reactant gas out of the reaction vessel, a ladder-shaped electrode for discharge generation arranged within the reaction vessel, a power source for supplying a high frequency power of 30 MHz to 200 MHz to the ladder-shaped electrode for a glow discharge generation, a heater for heating and supporting a target substrate, the heater being arranged within the reaction vessel in parallel to the ladder-shaped electrode for discharge generation, and a power distributor for uniformly distributing a high frequency power to the ladder-shaped electrode for discharge generation through a power supply wire.

Abstract: This invention is such that, in a series-connected TC parallel-unit type ferroelectric RAM composed of a series connection of a plurality of unit cells, each unit cell being such that a ferroelectric capacitor is connected between the source and drain of a cell transistor, for instance, plate electrode wires are provided in the longitudinal direction of bit line pairs. The plate electrode wires are shared in memory block groups, each group being a set of a plurality of memory cell blocks connected to the same bit line pair. This causes only the memory cells read from or written into to be accessed by the selected word line and selected plate electrode wire in one select operation.

Abstract: A plurality of electrode bars are arranged in parallel with each other, and side electrode bars are connected to the corresponding opposite ends of the electrode bars, thereby forming a ladder-like RF discharge electrode. Power supply points are arranged axisymmetrically with respect to a reference line, which is a bisector which bisects one side of the RF discharge electrode, while being spaced a predetermined distance from the reference line, thereby suppressing voltage distribution on the ladder electrode, which has an effect on uniformity of discharge distribution, to a sufficiently low level of nonuniformity. Thus, uniform distribution of film deposition rate can be obtained, thereby enabling uniform deposition even in large-area applications.

Abstract: This invention is such that, in a series-connected TC parallel-unit type ferroelectric RAM composed of a series connection of a plurality of unit cells, each unit cell being such that a ferroelectric capacitor is connected between the source and drain of a cell transistor, for instance, plate electrode wires are provided in the longitudinal direction of bit line pairs. The plate electrode wires are shared in memory block groups, each group being a set of a plurality of memory cell blocks connected to the same bit line pair. This causes only the memory cells read from or written into to be accessed by the selected word line and selected plate electrode wire in one select operation.

Abstract: Disclosed is a plasma chemical vapor deposition apparatus for forming an amorphous thin film, a microcrystalline thin film or a polycrystalline thin film on a surface of a target substrate by utilizing a glow discharge generated by an electric power supplied from a power source, comprising a reaction vessel, means for supplying a reactant gas into the reaction vessel, discharge means for discharge a waste gas of the reactant gas out of the reaction vessel, a ladder-shaped electrode for discharge generation arranged within the reaction vessel, a power source for supplying a high frequency power of 30 MHz to 200 MHz to the ladder-shaped electrode for a glow discharge generation, a heater for heating and supporting a target substrate, the heater being arranged within the reaction vessel in parallel to the ladder-shaped electrode for discharge generation, and a power distributor for uniformly distributing a high frequency power to the ladder-shaped electrode for discharge generation through a power supply wire.

Abstract: A tilt angle sensor is disclosed that is capable of detecting whether a tilt angle of a reference plane exceeds a predetermined value by means of only one threshold value. Although only one threshold value is used, the tilt angle can be measured with respect to either a clockwise or a counterclockwise direction from the untilted state. A pair of differential electrodes electrically independent of each other are formed in a shape symmetric with respect to upper and lower sections of a printed circuit board. A common electrode plate is mounted opposed to the pair of differential electrodes with a predetermined gap therebetween. The pair of differential electrodes and the common electrode is stored in a closed space formed by the printed circuit board and an oil case. A dielectric liquid is filled into the closed space in such a way that the level of the liquid varies according to the tilt of the reference plane.

Abstract: An inorganic oxide powder is produced by a method which comprises a step of (i) introducing, into a dry-way pulverizer, an inorganic oxide in an amount of 100 parts by volume and air, nitrogen or a gas mixture thereof in an amount of from about 25,000 to about 160,000 parts by volume to pulverize the inorganic oxide by the dry-way pulverizer, or (ii) introducing, into a medium-stirring-type pulverizer, an inorganic oxide with a BET specific surface area of from about 1 to about 70 m2/g to pulverize the inorganic oxide by the medium-stirring-type pulverizer in a dry way at a specific energy consumption of from about 0.3 to about 1 kWh/kg. The inorganic oxide powder is capable of providing a ceramic with high density and high mechanical strength.

Abstract: An amorphous silicon solar cell includes a substrate, a transparent electrode formed on this substrate, a power-generating film formed on this transparent electrode, and a back-side electrode formed on this power-generating film. The power-generating film is formed by sequentially stacking p-type/i-type/n-type hydrogenated amorphous silicon layers. The defect density of the i-type hydrogenated amorphous silicon layer is less than 1015 defects/cc.

Abstract: A ferroelectric memory has a memory cell array of memory cells having ferroelectric capacitors, which is divided into a plurality of blocks, a boost power circuit provided in each the block of the memory cell array to generate a boost voltage required for operation of the memory, a boost power switch provided between a power line connecting to an external power terminal and a power supply terminal of each the boost power circuit, and remaining ON during normal operation of the memory, a voltage detector circuit for detecting a drop of voltage level of the power line, and a switch control circuit for turning off the boost power switches in the blocks of the memory cell array excluding the boost power switch in a currently selected block in response to the voltage detector circuit.

Abstract: A discharge plasma generating method includes (a) opposing a discharge electrode having a substantially plane discharge portion to a substrate to be processed in a vacuum reaction vessel such that the discharge electrode and the substrate are substantially parallel to each other, (b) evacuating the vacuum reaction vessel and supplying a process gas to a space between the discharge electrode and the substrate, and (c) applying HF power to the discharge electrode such that an envelope representing the spatial distribution of a HF voltage &phgr; on the discharge electrode in a split second changes in accordance with a function including time as a parameter, thereby generating a discharge plasma of the process gas between the discharge electrode and the substrate, with substantially no standing wave of the HF voltage &phgr; generated on the discharge electrode.

Abstract: A continuous fiber of titania are made having an average diameter per a monofilament of from 5 to 50 &mgr;m, which has a BET specific surface area of 10 m2/g or more, a pore volume of 0.05 cc/g or more, a volume of pores having a pore diameter of not less than 10 angstroms being 0.02 cc/g or more and an average tensile strength per a monofilament of 0.1 GPa or more, or which has an average tensile strength per a monofilament of 0.5 GPa or more.

Abstract: A method for producing an active anode substance includes: a step for preparing, with mesophase carbon as a starting material, two carbon materials different in calcination temperature; a step for combining the two carbon materials at a specified ratio, turning the mixture into particles, and molding them into a shaped body; and a step for sintering the shaped body in an atmosphere of an inert gas or in a vacuum into a sintered anode body.

Abstract: In order to provide a ferrule for an optical-fiber connector used for good organization of an optical communication network, the ferrule for an optical-fiber connector is made of a crystallized glass having a composition which consists essentially of, by weight percent, 60-70% of SiO2, 16-25% of Al2O3, 1.5-3% of Li2O, 0.5-2.5% of MgO, 1.3-4.5% of TiO2, 0.5-3% of ZrO2, 2-6.5% of TiO2+ZrO2, 1-5.5% of K2O, 0-7% of ZnO, and 0-3% of BaO. The crystallized glass includes 30-70 volume % precipitation of &bgr;-spodumene solid solution or &bgr;-quartz solid solution having an average grain size not greater than 2 &mgr;m. In addition, the crystallized glass has a bend strength of 200 MPa or more and a thermal expansion coefficient of −10˜50×10−7/° C. at a temperature between −50 and 150° C.

Abstract: A method for producing a catalyst component-carrying titania fibers is provided, which has large specific surface area, large pore volume and a high catalyst activity. The method comprises steps of adding a catalyst component to the solution of a titanium alkoxide or to the hydrosis/polymerizatin reaction mixture and/or to the spinning solution, and treating a precursor fiber with water vapor before and/or during calcination.

Abstract: An improved non-aqueous electrolyte cell according to this invention includes a negative electrode which is a composite sintered body of a carbonaceous sintered material retained on an expanded metal mesh collector. The expanded metal mesh has a sheet thickness T, a mesh long width center distance LW, a mesh short width center distance SW, a mesh long width maximum opening, a; and a mesh short width maximum opening, b, all carefully specified to obey predetermined conditions in order to provide improved secondary cells having high energy density. The expanded metal mesh collector has a specified configuration to prevent carbon layer cracking and/or separation of the carbon layer, caused by shrinkage of the carbon layer on sintering or by expansion/shrinkage of the carbon layer during charging and discharging, to secure stable cell characteristics.

Abstract: A continuous fiber of titania are made having an average diameter per a monofilament of from 5 to 50 .mu.m, which has a BET specific surface area of 10 m.sup.2 /g or more, a pore volume of 0.05 cc/g or more, a volume of pores having a pore diameter of not less than 10 angstroms being 0.02 cc/g or more and an average tensile strength per a monofilament of 0.1 GPa or more, or which has an average tensile strength per a monofilament of 0.5 GPa or more.

Abstract: A semiconductor memory device including a memory cell array, bit lines, and sense amplifier groups. The memory cell array is composed of a plurality of memory cells arranged roughly in a matrix pattern. A plurality of the memory cells arranged in a row are activated in response to a row address decode signal. A pair of the bit lines are provided for each column. The data of the corresponding activated memory cells are transmitted to the bit line pair. Each of the sense amplifier groups has n-units of sense amplifiers each connected to the bit line pair, to sense and amplify data read to the bit line pair connected thereto. The respective reference potential terminals of the sense amplifiers of each of the sense amplifier groups are connected to a single common node which can be connected to a reference potential via a sense amplifier activating transistor turned on in response to a row address signal.

Abstract: Disclosed are optical fibers for optical attenuation comprising a core and a cladding, wherein the cladding comprises two or more parts different from each other in their refractive indices and/or the attenuating dopant existence. By using the optical fibers for optical attenuation of the present invention, an optical attenuator which can effectively reduce the effect of cladding mode upon coupling of optical fibers and is excellent in characteristic stability can be manufactured at a low cost.