Patents Issued in February 6, 2003
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Publication number: 20030025078Abstract: A vehicle visibility assist device is started up when a switching operation of a switch for an external vehicle light is detected and when it is determined by a brightness sensor that it is darker outside of the vehicle than a predetermined threshold. The visibility assist device projects infrared light to a region outside the vehicle, captures a reflection of the light, processes an image of the region outside the vehicle, and projects the image onto a surface visible to the vehicle operator.Type: ApplicationFiled: July 29, 2002Publication date: February 6, 2003Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryuji Yamaguchi, Yasuo Hagisato, Kunihiko Toyofuku, Shinya Kawamata
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Publication number: 20030025079Abstract: A thin film made of a cobalt-based oxide represented by YBaCo2O5.5+x (−0.5<x<0.05) is used as a resistor material for a bolometer. Provided is also an infrared sensor having a microbridge structure and using the cobalt-based oxide thin film. The temperature coefficient of the electric resistance thereof can be made large.Type: ApplicationFiled: November 7, 2001Publication date: February 6, 2003Applicant: NEC CORPORATIONInventors: Tsutomu Yoshitake, Hideto Imai
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Publication number: 20030025080Abstract: A mid-infrared (mid-IR) spectrometer attachment performs reflection spectroscopy measurements using commercially available infinity corrected light microscopes. The mid-IR spectrometer attachment introduces infrared radiation into the optical path of a visible light microscope. Radiation from the mid-IR spectrometer source is directed by a radiation director to a mid-IR objective lens affixed to the microscope nosepiece. The objective lens focuses the radiation on to a subject sample surface in order to acquire either internally or externally reflected infrared spectra by subsequently directing the sample encoded reflected infrared radiation to an infrared radiation detection system. The mid-IR spectrometer attachment is mechanically and optically compatible with a plurality of commercial infinity-corrected visible light microscopes.Type: ApplicationFiled: August 3, 2001Publication date: February 6, 2003Inventors: Donald W. Sting, Robert V. Burch, John A. Reffner, Donald K. Wilks
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Publication number: 20030025081Abstract: A method for quantitative imaging of gas emissions utilizing optical techniques combining gas correlation techniques with thermal background radiation or as self-emission radiation is presented. A simultaneous recording of images with and without filtering through a gas-filled cell is utilized for the identification of a selected gas A new calibration method provides the display of the integrated gas concentration spatially resolved in the generated final image. The procedure includes methods for a correct subtraction of the zero level, consisting of self-radiation from the dual-image camera device including the as correlation cell,, and electronic offset, and for the calculation of the specific absorption as a function of the difference temperature between the background and the gas emission.Type: ApplicationFiled: June 27, 2002Publication date: February 6, 2003Inventors: Hans Edner, Jonas Sandsten, Sune Svanberg
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Publication number: 20030025082Abstract: A presence detector includes an optical emitter for emitting optical radiation, an optical detector for detecting a presence of an object based on receiving the optical radiation, and a microcontroller for controlling the optical emitter and processing the optical detector output, such that a range adjustment and range hysteresis based on the object are provided by software in the microcontroller.Type: ApplicationFiled: August 2, 2001Publication date: February 6, 2003Applicant: International Business Machines CorporationInventors: James Gabriel Brewington, James Lewis Levine, Duane Scott Miller, Michael Alan Schappert
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Publication number: 20030025083Abstract: The illustrated embodiment of the invention is an improvement to an infrared camera in which an uncooled warm stop is provided which includes an array of miniature retro-reflectors on its rear surface oriented toward the detector in the camera and away from the exterior light source of interest instead of having a diffuse (i.e., Lambertian or white) or specular (i.e., mirror-like) reflector on the rear or interior surface of the warm stop.Type: ApplicationFiled: August 3, 2001Publication date: February 6, 2003Inventor: Charles S. Kaufman
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Publication number: 20030025084Abstract: A radiation image detector is provided with a first layer to emit light corresponding to a strength of a radiation incident thereon; a second layer to convert the light emitted from the first layer into electric energy; a third layer to accumulate the electric energy obtained by the second layer and to output a signal based on the accumulated electric energy so that the radiation image detector outputs an image signal corresponding to the incident radiation based on the signal outputted from the third layer; and a forth layer made of a resin and to hold the first, second and third layers.Type: ApplicationFiled: July 22, 2002Publication date: February 6, 2003Applicant: KONICA CORPORATIONInventors: Chika Honda, Hiromu Ohara, Hiroshi Kita, Kazuo Genda
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Publication number: 20030025085Abstract: Deflectors are disclosed that are suitable for use in various charged-particle-beam (CPB) optical systems as used, for example, in CPB microlithography systems. The deflectors produce a strong magnetic beam-deflecting field when energized with a relatively small electrical current. The beam-deflecting field thus produced is stable with respect to temperature changes, is little affected by eddy currents, and exhibits low aberration caused by manufacturing tolerances of the coil and core. In an exemplary method for manufacturing such a deflector, a magnetic-tape laminate is used as the core. Also, high-precision positioning of the coil and the magnetic-tape laminate is performed using photolithography and electrocasting. Positioning of the magnetic-tape laminate can be performed using a resist pattern formed by photolithography.Type: ApplicationFiled: July 16, 2002Publication date: February 6, 2003Applicant: Nikon CorporationInventor: Katsushi Nakano
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Publication number: 20030025086Abstract: A compact and portable analytical instrument dedicated to aflatoxin determination under minimum electrical power conditions employs a light emitting diode (LED) as light source with a peak output wavelength of 370 nm in addition to a 418 nm cut-off filter and a photodiode with a peak sensitivity of 140 nm. Thus, the relative amount of transmitted fluorescence energy at a wavelength of greater than 418 nm incident upon the aflatoxin is separated from the excitation light of 370 nm. In addition to the LED and the photodiode, the instrument preferably comprises amplifying, digital conversion, data storage, data transfer, display and power supply means and a graphical data output. The power supply regulator is a integrated circuit. As a result, current consumption is minimised, and thus battery life and instrument accuracy is maximised. The LED is powered by a constant current regulator, which minimises errors due to fluctuations in illumination intensity.Type: ApplicationFiled: September 18, 2002Publication date: February 6, 2003Inventor: Jorg Stroka
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Publication number: 20030025087Abstract: An instrument system is controlled to acquire an optical image of an object, with the optical image defining a first coordinate system The object is positioned in a second coordinate system and a point in the optical image is selected. The object is repositioned so that a point on the object corresponding to the selected point in the optical image is positioned at a predetermined point in the second coordinate system. Alternatively, movement of the object causes an indicia on the optical image to move to a point thereon corresponding to the point on the object that is positioned at the predetermined point in the second coordinate system.Type: ApplicationFiled: August 1, 2002Publication date: February 6, 2003Applicant: Aspex, LLCInventors: Frederick Schamber, Cornelis Van Beek, Nicholas Ritchie
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Publication number: 20030025088Abstract: A charged particle beam exposure method includes the steps of creating dot pattern data indicative of a pattern to be exposed, storing the dot pattern data in a first storage device having a first access speed, transferring the dot pattern data from the first storage device to a second storage device having a second, higher access speed, reading the dot pattern data out from the second storage device, and producing a plurality of charged particle beams in response to the dot pattern data read out from the second storage device by means of a blanking aperture array, wherein the blanking aperture array includes a plurality of apertures each causing turning-on and turning-off of a changed particle beam pertinent to the aperture in response to the dot pattern data.Type: ApplicationFiled: September 11, 2002Publication date: February 6, 2003Applicant: Fujitsu LimitedInventors: Yoshihisa Oae, Tomohiko Abe, Soichiro Arai, Shigeru Maruyama, Hiroshi Yasuda, Kenichi Miyazawa, Junichi Kai, Takamasa Satoh, Keiichi Betsui, Hideki Nasuno
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Publication number: 20030025089Abstract: The radiation shielding composition and method of the present invention relate to a conformal coating material composed of a matrix of densely packed radiation shielding particles, which are disbursed within a binder. The shielding composition is applied to objects to be protected such as integrated circuits, or to packages therefor, as well as for protecting animals including humans from unwanted exposure to radiation in outer space or other environments.Type: ApplicationFiled: September 18, 2002Publication date: February 6, 2003Applicant: Maxwell Electronic Components Group, Inc.Inventors: Michael Featherby, David J. Strobel, Phillip J. Layton, Edward Li
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Publication number: 20030025090Abstract: A sheet detecting device has a light emitting and receiving unit having a light emitting element for emitting detection light and a light receiving element for receiving the detection light, and a reflecting member for reflecting the detection light emitted from the light emitting element and making the reflected light incident to the light receiving element, and is constructed in a configuration wherein the light emitting and receiving unit and the reflecting member are placed with a sheet transport path between. The sheet detecting device is configured to detect a sheet on the basis of interruption of the detection light by the sheet transported through the sheet transport path.Type: ApplicationFiled: July 24, 2002Publication date: February 6, 2003Applicant: Canon Kabushiki KaishaInventor: Hisanori Iwasaki
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Publication number: 20030025091Abstract: The present invention is a method of inspecting a surface-emitting semiconductor laser in which a resonator is formed in a vertical direction on a semiconductor substrate. The surface-emitting semiconductor laser to be inspected includes a pillar portion in at least part of the resonator, and this pillar portion includes an oxidized current blocking layer. The oxidized current blocking layer includes an oxide aperture, and an oxidized portion formed around the oxide aperture. The surface-emitting semiconductor laser is irradiated with laser light in a direction perpendicular to a surface of the semiconductor substrate from the side on which the pillar portion is disposed, and the shape of the oxide aperture is measured based on the amount of reflected light at the oxidized current blocking layer.Type: ApplicationFiled: July 5, 2002Publication date: February 6, 2003Applicant: Seiko Epson CorporationInventor: Tsuyoshi Kaneko
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Publication number: 20030025092Abstract: Print media thickness and transmissivity is determined using transmissive light. The light is beamed onto a reflective and absorptive surface. A profile is generated and stored for each predetermined medium. The data stored is used in the manner of a look-up table for comparison to a profile of an unknown type media. Hard copy apparatus multi-pick recognition is also described.Type: ApplicationFiled: August 6, 2001Publication date: February 6, 2003Inventor: Arthur H. Barnes
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Publication number: 20030025093Abstract: A valve for automatically modulating fluid flow includes a flexible flow adjustment member having a variable diameter passage therethrough and an outer surface and a shell surrounding at least a portion of the outer surface and creating a void between the shell and the outer surface. The shell is in contact with the flow of fluid. A thermally reactive material that expands when heated and contracts when cooled is a substantially non-volatile heat transfer liquid that does not undergo a phase change in use and contains inert particulate filler within the void and is in contact with the outer surface of the flexible flow adjustment member. The thermally reactive material exerts pressure on the adjustment member in response to heating the thermally reactive material to cause the passage to narrow and relieves pressure thereon in response to cooling the thermally reactive material to permit the passage to widen.Type: ApplicationFiled: June 24, 2002Publication date: February 6, 2003Inventors: Thomas M. Kenny, Peter Hoynash, Vincent F. Pettinato, Bruce S. Mitchell
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Publication number: 20030025094Abstract: A gate valve comprises a valve body which includes a stem bore that extends therethrough and a seat bore that extends therethrough and intersects the stem bore generally transversely. A stem is disposed in the stem bore and includes a first stem portion that is sealed to the stem bore, a second stem portion that is sealed to the stem bore, and a gate pocket that is located between the first and second stem portions. First and second seats are each positioned at least partially within the seat bore proximate the gate pocket and each include a flow bore that extends therethrough. The gate valve also includes a gate which is disposed within the gate pocket between the first and second seats, a first actuator for moving the gate from a first position to a second position, and a second actuator for moving the gate from the second position to the first position.Type: ApplicationFiled: July 5, 2002Publication date: February 6, 2003Inventors: Taylor L. Jones, Philip Hernandez, Archie L. Smith, David E. Cain, Gregory L. Glidden, Christopher D. Bartlett, Christopher E. Cunningham, Paul P. Luangraj
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Publication number: 20030025095Abstract: A control element for media, for instance, a pneumatic valve or a hydraulic valve, comprising a valve body in which one or several channels are arranged, at least one moving element arranged in a channel and means for carrying out a relative movement of and/or deforming the moving element. The means are directly arranged on and/or directly act upon the moving element.Type: ApplicationFiled: October 4, 2002Publication date: February 6, 2003Inventor: Walter Sticht
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Publication number: 20030025096Abstract: A coupling for connecting a vacuum line to a body such as an autoclave to be evacuated, the coupling comprising a first part adapted to be sealingly engaged by welding upon the wall of the autoclave about an aperture therein, and having an internal bore which thus communicates with the interior of the autoclave, and a second part also having an internal bore for communication with the bore of the first part. The second part thus serves as a removable cartridge which is slidably engaged within the first part with sealing rings radially and axially sealing the two-parts together to prevent fluid leakage therebetween. The cartridge includes a spring-loaded valve. A circlip enables separation of the cartridge from the first part, and a circlip enables removal of the valve parts from the cartridge.Type: ApplicationFiled: July 26, 2002Publication date: February 6, 2003Inventor: James Jeory
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Publication number: 20030025097Abstract: Disclosed is an apparatus for disintegrating bales of agricultural material such as hay. The apparatus has a a chassis, a processing tub with a discharge opening located in one of its side walls, a disintegrator mounted in the processing tub to disintegrate baled crop material positioned within the tub and discharge the processed bale material out the discharge opening and a manipulator mounted within the processing tub adapted to manipulate the baled crop material to expose different parts thereof to the disintegrator. The processing tub is adapted to be mounted on the chassis such that the discharge opening can be positioned on either the left or right side of the chassis. In an embodiment of the invention, the processing tub is sized to accommodated a large square bale lengthwise therein or two or more round bales.Type: ApplicationFiled: March 4, 2002Publication date: February 6, 2003Applicant: Highline Mfg. Inc.Inventors: David Patterson, Murray Kosokowsky, Kimball Lischynski, Charles Lepage
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Publication number: 20030025098Abstract: A valve, such as a gate valve, includes a housing having a fluid conduit and defining a valve seat and a support surface, a seal plate, a counter plate, an actuator for moving the seal plate and the counter plate between an open position and a closed position, and a coupling mechanism operatively coupled between the seal plate, the counter plate, and the actuator. The seal plate is in sealed engagement with the valve seat, and the counter plate is in engagement with the support surface in the closed position. The coupling mechanism retracts the counter plate from the support surface subsequent to retraction of the seal plate from the valve seat as the valve is opened.Type: ApplicationFiled: August 1, 2001Publication date: February 6, 2003Inventors: Steven P. Young, Vaclav Myslivec
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Publication number: 20030025099Abstract: A diaphragm valve assembly comprising a body (2) defining a valve chamber (10) and first and second passageways (8,9) through said body which, in use, serve as an inlet and an outlet for the valve chamber, a removable, annular valve seat (3) adapted to be installed in the valve chamber around one of said passageways (8,9), seat holding means for holding the valve seat in place in the valve chamber, said seat holding means comprising a seat holder (4) that is shaped to surround said valve seat, a flexibly resilient diaphragm (5) having a valve closing portion and means (4,16) for holding the diaphragm in position in the valve chamber, such that said valve closing portion is disposed juxtaposed said valve seat (3), the diaphragm being shaped such that, when fitted, its resilience urges said valve closing portion away from the valve seat (3) and selectively operable driving means (6) for driving the valve closing portion of the diaphragm (5) into contact with the valve seat (3) for closing the valve; characterisType: ApplicationFiled: June 25, 2002Publication date: February 6, 2003Applicant: Fujikin IncorporatedInventors: Tomohiro Nakata, Michio Yamaji
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Publication number: 20030025100Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, a stearate and a thiophosphate.Type: ApplicationFiled: August 6, 2001Publication date: February 6, 2003Inventors: John C. Ulicny, Anthony L. Smith, Mark A. Golden, Charlene A. Hayden
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Publication number: 20030025101Abstract: The present invention provides a magnetorheological fluid in which magnetic particles coated with a hydrophilic surfactant are dispersed in a water in oil emulsion, and a process for preparing the same. The magnetorheological fluid of the present invention is prepared by adding water to oil dissolved with emulsifier, stirring it to give a mobile phase of water in oil emulsion, and dispersing magnetic particles coated with a hydrophilic surfactant in the water in oil emulsion. The invented magnetorheological fluid is improved in terms of stability through the interaction between surfactant of the magnetic particle surface and water molecule, which makes possible its practical application in the development of variable devices employing the magnetorheological fluid.Type: ApplicationFiled: January 10, 2002Publication date: February 6, 2003Inventors: O-Ok Park, Jong-Hyeok Park, Byung-Doo Chin
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Publication number: 20030025102Abstract: The present invention relates to a magneto sensitive fluid composition and a process for preparation thereof, wherein the electrical conductivity of the composition varies drastically and reversibly in the presence of an external magnetic field. The composition, which is practically an insulator, starts behaving as a conductor in the presence of a magnetic field. The fluid is basically a magnetorheological composition in which the magnetic sensitive particles are doped with conductive dopants in the form of conductive metallic or non-metallic powder. The change in electrical conductivity of the composition is in addition to the change in rheological characteristics of the composition in the presence of an external magnetic field.Type: ApplicationFiled: June 6, 2002Publication date: February 6, 2003Inventors: Reji John, Narayana Das Janardhan Pillai
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Publication number: 20030025103Abstract: The present invention generally relates to polysilicate microgels. More specifically, the invention relates to a process for preparing aqueous polysilicate microgels which comprises mixing an aqueous solution of alkali metal silicate with an aqueous phase of silica-based material having a pH of 11 or less, to polysilicate microgels per se and to the use thereof as flocculating agents in paper making and water purification. The invention further relates to a process for the production of paper from a suspension of cellulosic fibers, and optional filler, which comprises adding to the suspension at least one cationic or amphoteric organic polymer and a polysilicate microgel, forming and draining the suspension on a wire.Type: ApplicationFiled: December 6, 1999Publication date: February 6, 2003Inventors: MICHAEL PERSSON, BOZENA STANISLAWA TOKARZ, MAJ-LIS DAHLGREN, HANS JOHANSSON-VESTIN
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Publication number: 20030025104Abstract: An object of the present invention is to provide a polymerizable liquid crystal composition incorporating a polymerizable liquid crystal compound which displays a low nematic phase temperature, displays excellent compatibility with other polymerizable liquid crystal compounds, and furthermore yields a product following polymerization, of good transparency and high mechanical strength.Type: ApplicationFiled: December 20, 2001Publication date: February 6, 2003Inventors: Naoki Obi, Seungtaeg Lee, Hiroshi Hasebe, Tatsuo Kawara
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Publication number: 20030025105Abstract: The invention relates to anti-skinning agents containing mixtures of organic compounds (combinations of additives), whereby the organic compounds are selected from the groups of organic hydroxylamines, and &bgr;-dicarbonyl compounds and/or selected derivatives of formic acid and also relates to compositions containing them, especially oxidatively drying paints or coating compositions.Type: ApplicationFiled: July 8, 2002Publication date: February 6, 2003Inventors: Andreas Steinert, Peter Manshausen
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Publication number: 20030025106Abstract: A coating composition comprising a solution of a substituted or unsubstituted thiophene-containing electrically-conductive polymer and an organic solvent media; the media having a water content of less than 12 weight percent. An imaging element with the coating composition is also described, wherein the coating composition provides improved manufacturability and physical performance.Type: ApplicationFiled: June 26, 2001Publication date: February 6, 2003Inventors: Dwight W. Schwark, Debasis Majumdar, Charles C. Anderson, Robert J. Kress
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Publication number: 20030025107Abstract: An elevating device for a transfer system, in particular for a transfer system with a pneumatic drive, raises and/or lowers transported goods. The elevating device has at least two lifting cylinders (3), whose movements are synchronized by means of a synchronization device (8, 9, 14).Type: ApplicationFiled: July 1, 2002Publication date: February 6, 2003Inventors: Peter Ludwig, Christoph Schiferle
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Publication number: 20030025108Abstract: This invention relates to an apparatus to stretch elastic and non-elastic bands to be applied to furniture frames, characterized in that it provides for:Type: ApplicationFiled: January 14, 2002Publication date: February 6, 2003Inventor: Giuseppe Seroldi
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Publication number: 20030025109Abstract: In an elevator sheave for a flat belt, hard, thin surface plating can be applied to enhance durability while maintaining traction.Type: ApplicationFiled: July 1, 2002Publication date: February 6, 2003Applicant: Otis Elevator CompanyInventors: Pedro S. Baranda, John T. Pitts, Richard L. Hollowell, John P. Wesson, Douglas E. Logan, Zlatko Strbuncelj, James Hubbard
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Publication number: 20030025110Abstract: A lifting device for lifting and moving objects with minimal effort and a method for using the same is provided. The lifting device has a cable attachable to an object and a handle on the cable. Sensors in the handle may sense vertical pressure exerted on the handle and may put out a current to a variable-speed motor in a housing of the lifting device. The motor may release or may retrieve the cable at a speed dependent upon the amount of pressure applied, thereby raising or lowering the object. Pressure of three to five pounds is sufficient to lift any object. The operator may move the object in any direction up to a radius determined by the length of the cable from the object to the housing. The housing may have an upper portion that may slide forward relative to a lower portion. Consequently, this lengthens the radius of movement allowed to the operator.Type: ApplicationFiled: August 3, 2001Publication date: February 6, 2003Inventor: Malcolm E. Keith
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Publication number: 20030025111Abstract: A device for maintaining tension in a cable used to propel a carrier for one or more participants on an amusement ride. The device can be attached at the end of a cable where the propulsive force for the carrier is supplied at an intermediate point along the cable. It can also be connected to an intermediate point of the cable when the propulsive force for the carrier is supplied at an end of the cable. In the first situation a spring, a pressurizable cylinder having a rod attached to a piston, or a pressurizable cylinder with a piston may be connected to the cable and a heavy object; or a weight may be suspended from the cable. In the latter situation a slide is mounted on the cable attached to a line and weight, a spring is attached to a rigid structure, a pressurizable cylinder transversely pushes the cable, or a pressurizable cylinder transversely pulls the cable.Type: ApplicationFiled: August 3, 2001Publication date: February 6, 2003Inventor: Stanley J. Checketts
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Publication number: 20030025112Abstract: To reduce the danger of bodily harm to occupants of vehicles that leave a roadway, a guardrail system includes an energy-absorption system is provided. The energy-absorption system including a cutting mechanism positioned to cut a guardrail section upon impact by a vehicle to decelerate the vehicle.Type: ApplicationFiled: September 6, 2002Publication date: February 6, 2003Applicant: Kothmann Enterprises, Inc.Inventors: Dean L. Sicking, Brian G. Pfeifer
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Publication number: 20030025113Abstract: The performance of nitride based diodes is currently limited by the resistivity of the ohmic contacts to the p-type GaN. The large value of the contact resistance contributes to a large voltage for device operation. This in turn causes device heating, making cw operation difficult and limiting the device lifetime. A layer of GaP or GaNP alloy between the GaN and the metal contact layer serves to bridge the energetic barrier between the GaN valence band and the metal Fermi level, thus enhancing the hole injection and reducing the contact resistance.Type: ApplicationFiled: July 31, 2001Publication date: February 6, 2003Inventor: Christian G. Van De Walle
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Publication number: 20030025114Abstract: The semiconductor device comprises a first semiconductor layer 14 formed on a semiconductor substrate 10; an outgoing base electrode 26 formed on the first semiconductor layer 14; a base layer 32 formed on the first semiconductor layer, connected to the outgoing base electrode at a side surface of the outgoing base electrode, and formed of silicon germanium containing carbon; and a second semiconductor layer 36 formed on the base layer. The base layer 32 of silicon germanium contains carbon, which prevents the action of interstitial silicon atoms, which are very influential to diffusion of boron. As a result, when the emitter layer 36, etc. are subjected to heat processing at, e.g., about 950° C., the diffusion of boron out of the base layer 32 can be prevented.Type: ApplicationFiled: January 24, 2002Publication date: February 6, 2003Applicant: Fujitsu LimitedInventor: Tsunenori Yamauchi
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Publication number: 20030025115Abstract: The present invention provides a Group III nitride compound semiconductor device in which the amount of a current allowed to be applied on a p-type pad electrode can be increased.Type: ApplicationFiled: September 6, 2002Publication date: February 6, 2003Inventors: Toshiya Uemura, Atsuo Hirano, Shigemi Horiuchi
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Publication number: 20030025116Abstract: A semiconductor laminate configured for dividing into predetermined parts has a lateral expanse and includes: (a) a monocrystalline substrate substantially coterminous with the lateral expanse; (b) at least one layer including a monocrystalline compound semiconductor material; and (c) at least one intermediate layer substantially separating the substrate and the compound semiconductor material. The at least one compound semiconductor material layer is arrayed to present intervals substantially devoid of the monocrystalline compound semiconductor material that generally establish lateral limits of the predetermined parts.Type: ApplicationFiled: August 1, 2001Publication date: February 6, 2003Applicant: MOTOROLA, INC.Inventors: Robert J. Higgins, Barbara Foley Barenburg, Joseph P. Heck, Jonathan F. Gorrell
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Publication number: 20030025117Abstract: A semiconductor light-emitting device has a semiconductor light-emitting element 3 mounted on an electrode 2 formed on a surface of an insulating substrate 1, and has a reflective case 5 provided on the insulating substrate 1 so as to reflect the light from the light-emitting element 3, with the space inside the reflective case 5 sealed with a translucent resin 6. The reflective case 5 has a grained portion 51 formed over at least part of the surface thereof over which it makes contact with the translucent resin 6. This effectively prevents the translucent resin from coming off the reflective case. To enable the semiconductor light-emitting device to emit light with more even intensity in all directions, the grained portion is formed, preferably, at least in the portions of the reflective case 5 that face the side surfaces of the semiconductor light-emitting element.Type: ApplicationFiled: July 17, 2002Publication date: February 6, 2003Inventors: Shinji Isokawa, Tadahiro Okazaki
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Publication number: 20030025118Abstract: A semiconductor device in which degradation due to permeation of water and oxygen can be limited, e.g., a light emitting device having an organic light emitting device (OLED) formed on a plastic substrate, and a liquid crystal display using a plastic substrate. A layer to be debonded, containing elements, is formed on a substrate, bonded to a supporting member, and debonded from the substrate. A thin film is thereafter formed on the debonded layer. The debonded layer with the thin film is adhered to a transfer member. Cracks caused in the debonded layer at the time of debonding are thereby repaired. As the thin film in contact with the debonded layer, a film having thermal conductivity, e.g., film of aluminum nitride or aluminum nitroxide is used. This film dissipates heat from the elements and has the effect of preventing deformation and change in quality of the transfer member, e.g., a plastic substrate.Type: ApplicationFiled: July 22, 2002Publication date: February 6, 2003Inventors: Shunpei Yamazaki, Toru Takayama, Junya Maruyama, Mayumi Mizukami
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Publication number: 20030025119Abstract: A method is provided to optimize the channel characteristics of thin film transistors (TFTs) on polysilicon films. The method is well suited to the production of TFTs for use as drivers on liquid crystal display devices. Regions of polycrystalline silicon can be formed with different predominant crystal orientations. These crystal orientations can be selected to match the desired TFT channel orientations for different areas of the device. The crystal orientations are selected by rotating a mask pattern to a different orientation for each desired crystal orientation. The mask is used in connection with lateral crystallization ELA processes to crystallize deposited amorphous silicon films.Type: ApplicationFiled: September 26, 2002Publication date: February 6, 2003Inventors: Apostolos Voutsas, John W. Hartzell, Yukihiko Nakata
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Publication number: 20030025120Abstract: An integrated LED driving device for multiple LED strings which employs a single linear regulator or other controller and a multiple-output current mirror which is almost independent of the DC input voltage source, almost independent of the transistor's or MOSFET's variations from the semiconductor integration process, and almost independent of temperature variation. The multiple-output current mirror includes a plurality of transistors or MOSFETs each of which are integrated on the same substrate, with identical width-to-length channel ratios and with identical source and gate connections. The integrated LED driving device provides for automatic current sharing in a DC mode and, alternately, with minimized phase delays in a PWM mode. The mirror-output current mirror may include mirror-cascode transistor pairs.Type: ApplicationFiled: August 3, 2001Publication date: February 6, 2003Applicant: Koninklijke Philips Electronics N.V.Inventor: Chin Chang
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Publication number: 20030025121Abstract: A physically robust light emitting diode is disclosed that offers high-reliability in standard packaging and that will withstand high temperature and high humidity conditions. The diode comprises a Group III nitride heterojunction diode with a p-type Group III nitride contact layer, an ohmic contact to the p-type contact layer, and a sputter-deposited silicon nitride composition passivation layer on the ohmic contact. A method of manufacturing a light emitting diode and an LED lamp incorporating the diode are also disclosed.Type: ApplicationFiled: May 14, 2002Publication date: February 6, 2003Inventors: John Adam Edmond, Brian Thibeault, David Beardsley Slater, Gerald H. Negley, Van Allen Mieczkowski
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Publication number: 20030025122Abstract: In the first and second regions data not concurrently transferred is transferred by using data lines having the respective different wiring layers. The vertical positions of the data lines are reversed between the first and second regions. In the switching regions the data lines are exchanged between the first and second regions. The parasitic capacitances associated with the two data lines are practically equal to each other so that the delay times of signals transferred along the data lines are equal to each other. This can prevent a circuit malfunction due to a parasitic capacitance difference. In the semiconductor integrated circuit where memory cell arrays and sense amplifier arrays are alternately wired, forming the first and second regions over the memory cell arrays and the switching regions over the sense amplifier arrays makes it easier to exchange the vertical positions of the data lines in the switching regions.Type: ApplicationFiled: February 6, 2002Publication date: February 6, 2003Applicant: FUJITSU LIMITEDInventors: Toshikazu Nakamura, Toshiya Miyo
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Publication number: 20030025123Abstract: A semiconductor laser device according to the present invention has a semiconductor substrate, an active layer formed on the semiconductor substrate and made of a compound semiconductor containing phosphorus, a guide layer formed on the active layer and made of a compound semiconductor, a dopant diffusion preventing layer formed on the guide layer and made of a semiconductor compound containing arsenic, and a clad layer formed on the dopant diffusion preventing layer and made of a compound semiconductor containing a dopant.Type: ApplicationFiled: July 26, 2002Publication date: February 6, 2003Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventor: Toshikazu Onishi
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Publication number: 20030025124Abstract: A circuit configuration for load-relieved switching has a bridge circuit with at least two controllable power switches, whose controlled paths are arranged in series with one another and between a first and a second supply potential. The circuit configuration has a drive circuit for driving the power switches, and an inductive element that is connected to output terminals of the bridge circuit. At least one power switch is designed as a field-effect controllable, integrated transistor in accordance with the principle of charge carrier compensation or at least one power switch has deep pn junctions.Type: ApplicationFiled: August 1, 2002Publication date: February 6, 2003Inventor: Gerald Deboy
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Publication number: 20030025125Abstract: The transistor includes an emitter region 17 disposed in a first isolating well 11, 150 formed in a semiconductor bulk. An extrinsic collector region 16 is disposed in a second isolating well 3, 150 formed in the semiconductor bulk SB and separated laterally from the first well by a bulk separator area 20. An intrinsic collector region is situated in the bulk separator area 20 in contact with the extrinsic collector region. An intrinsic base region 100 is formed which is thinner laterally than vertically and in contact with the intrinsic collector region and in contact with the emitter region through bearing on a vertical flank of the first isolating well facing a vertical flank of the second isolating well. An extrinsic base region 60 is formed which is substantially perpendicular to the intrinsic base region in the top part of the bulk separator area, and contact terminals C, B, E respectively in contact with the extrinsic collector region, the extrinsic base region, and the emitter region.Type: ApplicationFiled: May 9, 2002Publication date: February 6, 2003Applicant: STMICROELECTRONICS S.A.Inventors: Olivier Menut, Herve Jaouen
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Publication number: 20030025126Abstract: A transistor structure includes a main gate silicon active region having a thickness of less than or equal to 30 nm; and auxiliary gate active regions located on either side of said main gate silicon active region, said auxiliary gate active regions being spaced a distance from said main gate active region of about 200 nm.Type: ApplicationFiled: September 30, 2002Publication date: February 6, 2003Applicant: Sharp Laboratories of America, Inc.Inventor: Sheng Teng Hsu
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Publication number: 20030025127Abstract: In a case of a liquid crystal display apparatus, a gate insulating film of a TFT driven at a low voltage (3.3 V or 5 V) is constituted by one insulating film, and a thickness thereof is set to, for example, 30 nm. This TFT has a structure in which LDD regions (low concentration impurity regions) are not provided. A TFT having a CMOS structure, which is driven at a high voltage (18 V), has a gate insulating film constituted by two insulating films having a thickness of, for example, 130 nm in total. In an n-type TFT, a low concentration impurity region is provided on a drain side. A p-type TFT has a structure having no LDD region. A pixel TFT has a gate insulating film constituted by two insulating films, and LDD regions provided in both of its source/drain.Type: ApplicationFiled: March 22, 2002Publication date: February 6, 2003Applicant: FUJITSU LIMITEDInventors: Ken-ichi Yanai, Yoshio Nagahiro, Kazushige Hotta, Koji Ohgata, Yasuyoshi Mishima, Nobuo Sasaki