Abstract: A method of making a single crystal of lead magnesium niobate-lead titanate (PMN-PT). The method includes providing a flat-bottomed iridium crucible containing PMN-PT starting material, and placing the crucible into a vertical Bridgman furnace having at least two temperature zones, which is subsequentially pressured with an inert gas. The crucible then descends into the temperature zones of the vertical Bridgman furnace. The temperature zones of the vertical Bridgman furnace include a first temperature zone having a temperature higher than a melting temperature of the PMN-PT material and a second temperature zone having a temperature less than the melting temperature of the PMN-PT material. The single crystals of the PMN-PT prepared using the above-described method exhibits a  crystal orientation and may be used in electroacoustic transducers. The electroacoustic transducers are useful in devices that detect or generate acoustic waves.
Abstract: A measuring apparatus for measuring a semiconductor wafer, or a film or coating thereon, includes an electrically conductive wafer chuck and a probe having a probe body defining an internal cavity in fluid communication with an electrically conductive and elastic or resilient membrane. The membrane and a topside of the semiconductor wafer are moved into spaced relation when the semiconductor wafer is supported by the wafer chuck. A pressure of fluid supplied to the internal cavity of the probe body is selectively controlled whereupon the membrane expands into contact with the topside of the semiconductor wafer. A suitable test stimulus is applied to the membrane and the semiconductor wafer and the response of the semiconductor wafer to the test stimulus is measured.
Abstract: A hydraulic steering device (1) has a steering angle transmitter (2) in communication with a steering valve (3) which, as a function of the actuation of the steering angle transmitter (2), controls the communication between a steering drive (11), e.g., a steering cylinder (12) with a hydraulic pressure source (5) and a reservoir (9), and a correction device (15). The correction device (15) provides synchronization of the position of the steering angle transmitter (2) with the position of the steering angle drive (11) when the steering drive (11) or steering angle transmitter (2) is in a reference range and the position of the steering angle transmitter (2) and/or of the steering drive (2) varies from the reference range.
Abstract: A process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a carbonate iron (CO32?) type or bicarbonate ion (HCO3?) type anion exchange resin, and thirdly with a H+ type cation exchange resin. Further, a process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a fluoride ion (F?) type anion exchange resin, thirdly with a carbonate ion (CO32?) type or bicarbonate ion (HCO3?) type anion exchange resin, and fourthly with a H+ type cation exchange resin.
Abstract: A steel plate and a hot-dip galvanized steel plate, superior in terms of high electromagnetic shield capacity. The steel plate is prepared from a composition comprising C, N and S in an amount of 0.150% by weight or less in total; Mn in an amount of 0.1 to 1.0% by weight; Si in an amount of 0.5% by weight or less; Al in an amount of 1.0% by weight or less; P in an amount of 0.06% by weight or less; and Fe for the remainder, and inevitable elements, and shows a yield strength of 18 kg/mm2 or higher, and an elongation of 40% or higher. The hot-dip galvanized steel plate is prepared from a composition comprising C, N and S in an amount of 0.0150 % by weight or less in total; Mn in an amount of 0.2 to 0.8% by weight; Al in an amount of 0.6% by weight or less; Si in an amount of 0.4% by weight or less; P in an amount of 0.06% by weight or less, with the proviso that the sum of Mn, Al, Si and P amounts to 0.2-1.0% by weight; and Fe for the remainder, and inevitably present elements.
December 19, 2001
Date of Patent:
May 17, 2005
Posco, Research Institute of Industrial Science & Technology
Jae-Young Lee, Eel-Young Kim, Jin-Gun Sohn, Noi-Ha Cho, Young-Jin Kwak, Soon-Joo Kwon, Yong-Min Kim, Jung-Sik Lee
Abstract: A coating liquid for forming a silica-containing film with a low-dielectric constant which enables formation of low-density film having a dielectric constant as low as 3 or less and having excellent resistance to oxygen plasma and process adaptation but also in the adhesion to a substrate and film strength. A substrate coated with the silica-containing film having the above characteristics, obtained by the use of the above coating liquid.
Abstract: A method of document assembly includes initializing or opening in a memory of a computer a document having at least one live data field. For each live data field opened in the memory, a record is also is initialized in the memory. Each record stores an attribute or property of data received in the corresponding live data field. Data is inserted into a first live data field or data in the first live data field is amended. Data is inserted into a second live data field or data in the second live data field is amended to include the data inserted into or amended in the first live data field based upon the attributes or property of the data stored in the records of the first and second live data fields.
June 6, 2001
Date of Patent:
May 17, 2005
DataTech Software, Inc.
Matthew Paul Endress, Kenneth S. Thompson
Abstract: The present invention includes an adjustable lighting fixture having a housing and light holders which are able to extend, pivot, spin, and slide with respect to the housing, a mounting arm, or each other. The lighting fixture may thus provide enhanced lighting during events, such as live performances, teleconferencing, filming, or videotaping. Each adjustable lighting fixture generally includes a light holder positioned on a mounting arm pivotally or otherwise movably connected to the housing. The lighting fixture uses fluorescent light sources. When enhanced lighting is not required, the light holders may be restored in the housing in an aesthetic manner.
Abstract: A clarification system for fluids in which particles are separated from the fluid by flotation and in which the buoyant media inducing the flotation is recycled. Flotation can be assisted by a flotation assistance device, such as dissolved air flotation.
Abstract: Highly transparent alumina hydrate particles having a large pore volume, having a pore diameter which falls in a specified range and, when formed into a high-concentration dispersion sol, exhibiting a low viscosity are provided. Alumina hydrate particles having a composition represented by the general formula xM2O.y(NH4)2O.Al2O3.zH2O (2×10?4?x?25×10?4, 0.1×10?4?y?20×10?4, 0.6?z?2.5, M represents an alkali metal; when the alkali metal is in the form of M2O, x is the number of moles thereof per mol of Al2O3; when ammonia is in the form of (NH4)2O, y is the number of moles thereof per mol of Al2O3; and z is the number of moles of hydration water (H2O) per mol of Al2O3), the alumina hydrate particles having an average particle diameter of 0.02 to 0.2 ?m, a total pore volume of 0.5 to 1.5 ml/g, and a volume of pores whose diameter is from 15 to 30 nm ranging from 0.3 to 1.0 ml/g.
Abstract: A film carrier tape for mounting an electronic part comprising an insulating film and a wire pattern which is made of a conductive metal and is provided on the surface of the insulating film, wherein an undercoating layer containing nickel as a main constituent is formed on at least a part of the surface of the wiring pattern made of a conductive metal, an intermediate layer containing palladium as a main constituent is formed on the surface of he undercoating layer, a surface layer containing gold as a main constituent is formed on the surface of the intermediate layer, and the average thickness of the intermediate layer containing palladium as a main constituent is not more than 0.04 ?m.
Abstract: A paint composition containing a corrosion inhibitor A prepared from porous silica particles, to which Ca ion is bonded by ion-exchange, and a polyphosphate B preferably at an A/B weight ratio of 60/40 to 5/95 and at an A+B ratio of 5-150 parts by weight based on 100 parts by weight of resinous components. A base metal sheet is preferably one pre-treated with a chemical agent containing at least one fluoroacid. Since the polyphosphate B controls dissolution of Ca ion, an effect of Ca ion on corrosion inhibition is maintained over a long term. The painted metal sheet does not put harmful influences on the environment, since it does not contain chromium compounds.
Abstract: A change speed apparatus for a working vehicle includes a first shaft for receiving driving torque from an engine, a second shaft for transmitting the driving torque to a rear wheel differential, a change speed mechanism for changing speed of the driving torque received from the first shaft and transmits the driving torque to the second shaft, and a shift lever for selectively switching the change speed mechanism. The change speed mechanism has a high forward speed stage, a low forward speed stage, a backward drive stage, and a neutral stage. The shift lever is movable along a transverse control path for the neutral stage, a first longitudinal control path for the high forward speed stage, a second longitudinal control path for the low forward speed stage, and a third longitudinal control path for the backward drive stage.
Abstract: A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the crawler belt for driving the belt, and a plurality of free wheels rotatable for laterally guiding the driving projections under movement. Each driving projection has an upper half having a lateral face including an upper half lateral face portion and a lower half having a lower half lateral face portion, the upper half lateral face portion having an erect inclination angle smaller than an erect inclination angle of the lower half lateral face portion. Each free wheel has an inner lateral face opposed to the driving projection, the inner lateral face having an inclined guide face having an inclination parallel to the lower half lateral face portion of the driving projection.
Abstract: An electrical system and apparatus for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit during a start-up mode switches the inverter circuit to the stator winding of the alternator and during a power out mode switches the inverter circuit to the output circuit. The operating parameters of the turbine are monitored during start-up and/or the power out mode.
October 3, 2003
Date of Patent:
May 10, 2005
Elliott Energy Systems, Inc.
Suresh C. Gupta, Douglas R. Burnham, J. Michael Teets, Jon W. Teets
Abstract: A system for recording, storing, manipulating, retrieving and displaying video images of events. The system has the capability of accepting video and audio input from a number of sources, processing and storing the input in the digital format, and combining it with previously captured material for the production on demand of video tapes or other media. Manual controls and automated sensors govern the video collection process. Remote monitoring and control is accomplished through networks or modem connections.
Abstract: A novel method and device for sealing a borehole that is filled either partially or completely with water. A water-permeable sleeve is capable of expanding to the diameter of the borehole, and is constructed of a material that will allow the passage of water in and out throughout its length, with a series of apertures, but will prevent an explosive charge from escaping. Once the sleeve is in place, a hose, to introduce the explosive charge, is lowered through the sleeve to bottom of the borehole.
Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.
Abstract: A luminaire comprising a housing with an opening on one side. A lamp and reflector are contained in the housing. The luminaire includes an arrangement to distribute radiated heat in front of the lamp away from an area of the center line of radiation towards areas located laterally with respect to the center line of radiation of the luminaire.