Patents Issued in February 20, 2001
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Patent number: 6191377Abstract: An electromagnetic switching device, in particular a high capacity contactor, includes switch contacts which are arranged inside interrupter chambers formed by an interrupter chamber housing. Also provided is a deionizing device which is in the form of an arcing chamber and assigned to each interrupter chamber with a switch contact. The arcing chamber is formed by arcing plates which are assembled to form a packet. In addition, a cover is provided for closing the interrupter chambers on the upper side. The uppermost arcing plate which faces the cover is configured as a shielding plate of each arcing chamber and has at least one upward bent clip. Recesses which correspond with the clips of the arcing chambers are formed on the underside of the cover. The arcing chambers can be fastened to the cover to provide an interlocking connection by plugging the clips into the recesses.Type: GrantFiled: November 30, 1999Date of Patent: February 20, 2001Assignee: Moeller GmbHInventors: Norbert Roesner, Jakob Bolz, Helmut Kern
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Patent number: 6191378Abstract: The invention relates to a welding apparatus, that includes a welding machine (1), shielding gas unit (4) and a nozzle part (3), that is connected to the welding machine (1). The welding rod (L), that is led to the welding point from the shielding gas unit (4), is arranged to be melted while being protected by the shielding gas in connection with the nozzle part (3) by means of an arc achieved by influence of the supply unit (1b) for welding current. To improve fire safety of the welding occasion, the welding apparatus includes furthermore a coupling arrangement (X), that comprises furthermore organs (X2), that are arranged to interrupt at least supply of welding current to the nozzle part (3) and to lead shielding gas to the point exposed for fire or that is burning through the nozzle part (3) at an essentially increased volume flow rate in respect to the welding occasion.Type: GrantFiled: August 20, 1999Date of Patent: February 20, 2001Assignee: Asko Taipale OyInventor: Asko Taipale
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Patent number: 6191379Abstract: Two parts are welded together at a weld spot in a groove. A spot adjacent the weld spot is heated simultaneously and independently of the welding so that the heating and welding form a heat-treated weld bead along the groove. Preheat treatment, postheat treatment, or both, may be used simultaneously with welding to maximize performance of the resulting weld joint. Preheat and postheat treatment may be performed using lasers while the welding may be performed by TIG welding or laser welding. The welding torch and preheat and postheat lasers are coplanarly aligned.Type: GrantFiled: April 5, 1999Date of Patent: February 20, 2001Assignee: General Electric CompanyInventors: Henry Peter Offer, Marshall Gordon Jones
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Patent number: 6191380Abstract: A method of centering an electrode in the nozzle of a plasma arc torch head is disclosed. The method involves complementing the external wall of the swirl to the internal taper of the nozzle; complementing the internal wall of the swirl to the external taper of the electrode; fitting the hollow tapered swirl so formed in the hollow nozzle to abut the inner taper of the nozzle; and fitting the electrode in the hollow swirl to abut the inner taper of the swirl to center the electrode within the nozzle. Also disclosed is a head for a plasma arc cutting torch which includes a a swirl located between the nozzle and the electrode, through which plasma fuel gas is introduced into the nozzle, characterized in that the plasma fuel gas is introduced directly into the plasma formation zone or plenum beyond the junction between the nozzle body and cone end thereby avoiding change in direction within the conical end of the nozzle before the plasma formation zone.Type: GrantFiled: June 14, 2000Date of Patent: February 20, 2001Inventor: Hughen Gerrard Thomas
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Patent number: 6191381Abstract: An electrode for a plasma arc cutting torch, wherein the electrode comprises a holder having a tapered tip and emissive element concentrically disposed therein. The holder has an included angle of taper at the tip of between about 25° and about 40° and a diameter at the tip approximately equal to, or slightly larger than, the diameter of the end surface of the emissive element. The electrode is configured such that the holder comprises a relatively thin holder wall at the tip of the electrode which evaporates due to the heat from the adjacent arc generated through the emissive element such that the tapered tip erodes generally simultaneously with the emissive element. Generally simultaneous erosion of both the holder and the emissive element thus avoids the problems of overheating and/or double arcing and extends the service life of the electrode. A method of operation of a plasma arc torch is also provided.Type: GrantFiled: January 19, 2000Date of Patent: February 20, 2001Assignee: The ESAB Group, Inc.Inventor: Arefin Kabir
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Patent number: 6191382Abstract: This invention relates to a dynamic laser cutting apparatus for cutting successively various configurations on a moving feed stock or other moving web or successive sheets. The apparatus includes a control device, which monitors the relative location of the moving feed stock, and controls a scanner to direct a laser beam to cut successively various configurations on the desired relative location of the feed stock. One of the configurations that may be cut with the present invention is sets of successive sheets with index tabs in different locations, from a high-speed moving feed stock, thereby eliminating the need for collating the individual index tab sheets into a set. In order to cut consistently, the control device also monitors the speed of the moving feed stock, and based on the speed of the feed stock, adjusts the power level of the laser to cut consistently on the moving feed stock.Type: GrantFiled: April 2, 1998Date of Patent: February 20, 2001Assignee: Avery Dennison CorporationInventor: Gerry Damikolas
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Patent number: 6191383Abstract: A device for mutually connecting by laser welding of sheet-metal objects laid flat against each other at least in determined zones, for instance two or more flat or previously profiled plates, for instance stainless steel or other objects for mutual connection by laser welding, comprising: a welding station comprising a laser and an optical device for performing a laser welding operation using a laser beam via a preselected path consisting for instance of a plurality of sub-paths; clamping means, for instance a lower clamping plate and an upper clamping beam for clamping against each other at least said regions, of the objects at the location of the welding station; transporting means for supplying and carrying successive assemblies of objects laid on top of each other according to a chosen displacement pattern along the welding station, which transporting means comprise two separate conveyors, wherein the welding station is a collective one for both conveyors and respective individual clamping means are addeType: GrantFiled: July 16, 1999Date of Patent: February 20, 2001Assignee: Omega Laser Systems B.V.Inventor: Willem Frederik Jense
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Patent number: 6191384Abstract: An apparatus and method for trimming dye coated on a recordable disc substrate during production of an optical memory disc which includes a substrate rotation assembly for rotating the disc substrate, an optic assembly for directing a laser beam directly upon the rotatable substrate to trim the dye coated thereon, and a process byproduct removing assembly for removing the trimmed byproducts from the substrate.Type: GrantFiled: May 5, 1998Date of Patent: February 20, 2001Assignee: Tapematic S.p.A.Inventor: Michael Hennessey
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Patent number: 6191385Abstract: A laser shock processing apparatus with controller for controlling laser shock processing operation. The controller generates an operator perceivable alert when a processing value is not within a predetermined range of a preset value. The controller may adjust the processing value to be within the predetermined range or may deactivate a laser from directing a beam of coherent energy to a workpiece. In one embodiment, a plurality of controllers comprise distributed processing of various processing values for controlling laser shock processing operation.Type: GrantFiled: July 7, 1999Date of Patent: February 20, 2001Assignee: LSP Technologies, Inc.Inventors: Mark E. O Loughlin, Jeff L. Dulaney
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Patent number: 6191386Abstract: A method and associated apparatus for initiating and guiding an electrical discharge arc. This method preferably comprises the steps of: providing a laser beam through a predetermined gas comprising molecules amenable to vibrational excitation by a laser beam so as to cause vibrational excitation of the molecules and to define a beam path in a direction of desired electrical discharge; and propagating an electrical discharge arc so as to intersect the beam path, whereby the electrical discharge arc is directed along the beam path.Type: GrantFiled: April 22, 1999Date of Patent: February 20, 2001Assignee: The Ohio State UniversityInventors: Charles E. Albright, Joseph W. Rich, Richard B. Miles, Walter R. Lempert, Sergy O. Macheret
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Patent number: 6191387Abstract: Hairdressing tongs have a pair of arms extending from handles. Each arm has a heating pad affixed thereto. The handles have opposed openings. A central element is positioned between the handles and fitted within the openings such that the central element is slidable toward the handles. The central element has guide openings. Springs are positioned in the guide openings for biasing apart the handles. The springs enable hand pressure to move the handles and arms together from a completely open position to a completely closed position and, in absence of the hand pressure, to maintain the handles and arms in relatively parallel configuration, biased against stops of the central element.Type: GrantFiled: January 26, 2000Date of Patent: February 20, 2001Assignee: Conair CorporationInventor: Henri Smal
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Patent number: 6191388Abstract: An injector system for a vertical furnace which has a pedestal and a semiconductor article support within a process container. The injector system includes an injector which is an elongate tube extending into the process chamber. The tube includes a circuitous section in the area of the pedestal to increase residence time for the contents of the tube prior to introduction to the semiconductor articles. A substantially direct section leads from the circuitous section to a discharge end located above the semiconductor article support. The injector system further includes a vertical column heater arranged with the vapor outlet at the upper end of the heater connected via a coupling to the injector in an arrangement to reduce thermal loss.Type: GrantFiled: November 18, 1998Date of Patent: February 20, 2001Assignee: Semitool, Inc.Inventors: Mark P. Cleaver, Gregory J. Wilson, Paul R. McHugh, Larry J. Funk
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Patent number: 6191389Abstract: A grease resistant oven grille includes an injection molded plastic structure having a plurality of air passages therethrough and a grease resistant powder coating layer overlying the plastic structure for withstanding oven exhaust of about 275° F. (135° C.) without color change. The grease resistant powder is a polyester resin that is electrostatically applied to the plastic structure after priming the grille with a conductive primer.Type: GrantFiled: March 31, 2000Date of Patent: February 20, 2001Assignee: General Electric CompanyInventor: Milton Edward Rickert, Jr.
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Patent number: 6191390Abstract: A substrate support plate including a heating element for use in a process chamber is described. The heating element includes an outer sheath, a heating filament and a thermally-conductive and electrically insulative sealing material. The sealing material comprises a diamond powder.Type: GrantFiled: May 14, 1999Date of Patent: February 20, 2001Assignee: Applied Komatsu Technology, Inc.Inventors: Carl A. Sorensen, Daniel Winkler
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Patent number: 6191391Abstract: A warming drawer for a domestic range which is disposed within a heating chamber located relatively beneath the oven. The heating chamber is surrounded by a series of panels, and has a heating element disposed therein. The heating element is energized in accordance with a user-determined duty cycle such that temperature within the heating chamber is maintained between a predetermined minimum temperature and a predetermined maximum temperature. The range of temperatures between the predetermined minimum and predetermined maximum correspond to a range of desired food serving temperatures at the warmer drawer.Type: GrantFiled: December 18, 1996Date of Patent: February 20, 2001Assignee: White Consolidated Industries, Inc.Inventors: Subhash R. Deo, George R. Brake, James E. Pryor, James E. Peppers, Cecilia M. Lankford, Victor P. Smith
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Patent number: 6191392Abstract: A method is provide for measuring electromagnetic radiation radiated from a surface of an object that is irradiated by electromagnetic radiation given off by at least one radiation source. The radiation given off by the radiation source is determined by at least one first detector, and the radiation given off by the irradiated object is determined by at least one second detector that measures the radiation. The radiation from the at least one radiation source is actively modulated with at least one characteristic parameter. The radiation determined by the second detector is corrected with the radiation determined by the first detector to compensate for the radiation of the radiation source reflected from the object.Type: GrantFiled: December 8, 1998Date of Patent: February 20, 2001Assignee: Steag AST Elektronik GmbHInventors: Markus Hauf, Thomas Knarr, Heinrich Walk, Horst Balthasar, Uwe Müller
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Patent number: 6191393Abstract: The present invention relates to a cooking utensil having a double-layered structure which preserves heat efficiently as well as provides even heat distribution and to a method of fabricating such cooking utensil. The cooking utensil has a heat conduction medium charged between outer and inner shells forming a double-layered structure which is sealed by a curling machine without the use of a built-in safety valve in the wall of the cooking utensil.Type: GrantFiled: November 23, 1999Date of Patent: February 20, 2001Inventor: Jong Do Peter Park
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Patent number: 6191394Abstract: A heat treating apparatus comprises a hot plate having a top surface on which is placed a substrate that is to be subjected to a heat treatment, setting means for setting an original target temperature of the hot plate required for subjecting the substrate to a heat treatment, a heat energy supply source for supplying a heat energy to the hot plate, a sensor for detecting the temperature of the hot plate, and control means receiving a detection signal from the sensor to obtain a difference in the detected temperature of the hot plate between the state that the substrate is not placed on the hot plate and the state that the substrate is placed on the hot plate, the original target temperature being switched based on the difference, and a signal denoting the switched target temperature in place of the original target temperature being supplied from the control means to the heat energy supply source.Type: GrantFiled: May 19, 1999Date of Patent: February 20, 2001Assignee: Tokyo Electron Ltd.Inventors: Eiichi Shirakawa, Nobuyuki Sata
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Patent number: 6191395Abstract: A heating roller 10 comprises a surface layer 157 formed of a prepreg material including carbon fibers having a high tensile strength and a high elastic modulus, and a heating unit 153 mounted in the inner area of the surface layer and communicated to a power supply unit 30 formed of a prepreg material including carbon fibers having a high electric resistance. A metal material working as an electrode 20 communicated to the power supply unit 30 and the heating unit 153 is mounted to both ends of the heating roller 10. The electric resistance of the heating unit 153 is adjusted either by changing the thickness (number of laminated layers) of the prepreg material including carbon fibers, or by adjusting the mounting angle of the carbon fibers inside a prepreg material being laminated and the angle of the carbon fibers inside another prepreg material being laminated.Type: GrantFiled: September 20, 1999Date of Patent: February 20, 2001Assignee: Jamco CorporationInventors: Toru Kasai, Akiyoshi Sugawara
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Patent number: 6191396Abstract: A heater abnormality detecting circuit includes a heater winding. A fly back pulse extracted by the heater winding is supplied to a heater through a heater resistor, and voltage-divided and supplied to a micro-computer. The micro-computer determines a normality or abnormality on the heater by determining whether or not it is inputted with the voltage-divided fly back pulse in a predetermined time period.Type: GrantFiled: November 17, 1998Date of Patent: February 20, 2001Assignee: Funai Electric Co. Ltd.Inventor: Kazuhiko Yamamoto
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Patent number: 6191397Abstract: A heating apparatus for performing heat treatment on a wafer applied with a resist before or after exposure includes a heating plate for heating a wafer which is placed on the heating plate, a light intensity detecting apparatus for irradiating light on the wafer to detect intensity of reflected light from the resist on the wafer, and a control section for controlling heating performed by the heating plate on the basis of the detected intensity of reflected light so that heating amount applied to a plurality of wafers becomes constant. Accordingly, the heating amount of the wafer can be controlled to be constant and variations in dimension of resist patterns can be reduced.Type: GrantFiled: July 1, 1999Date of Patent: February 20, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Kei Hayasaki, Shinichi Ito, Kenji Kawano
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Patent number: 6191398Abstract: A dry bath with a heat conductive block having a plurality of bores adapted to receive tubes containing samples of material. The dry bath includes a heater and a temperature sensor mounted to the block. A heat controller executes a control cycle of initially operating the heater to heat the block in the absence of the tubes to a desired temperature. Next, the heat controller automatically detects a change in temperature of the block in response to tubes being placed in the bores, wherein the samples in the tubes have a temperature different, for example, less, than the desired temperature. In that case, the heat controller operates the heater to first automatically heat the block to a temperature greater than the desired temperature. Thereafter, the heat controller automatically reduces the heat being applied to the block while heat continues to transfer to the samples such that the block and samples simultaneously reach, and are maintained at, the desired temperature.Type: GrantFiled: September 10, 1999Date of Patent: February 20, 2001Assignee: Barnstead/Thermolyne CorporationInventors: Steven C. Peake, Jason A. Harms
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Patent number: 6191399Abstract: A CVD processing reactor employs a pyrometer to control temperature ramping. The pyrometer is calibrated between wafer processing by using a thermocouple that senses temperature during a steady state portion of a processing operation.Type: GrantFiled: February 1, 2000Date of Patent: February 20, 2001Assignee: ASM America, Inc.Inventor: Frank B. M. Van Bilsen
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Patent number: 6191400Abstract: A metal sheath heating element for substantially dry applications is disclosed. In one embodiment, the heater is substantially elongate and cylindrical, and comprises a coiled resistive heater wire. The heater wire is disposed within a stainless steel outer sheath. Granular insulating material is introduced into the sheath to electrically insulate the heating element from the outer sheath, and to thermally conduct heat from the heating element to the sheath. At least one small hole is formed in outer sheath to permit any moisture trapped therein to escape, advantageously minimizing the potential for current leakage between the heating element and the outer sheath, as well as minimizing the likelihood of depletion of oxygen from the filler material due to oxidation occurring within the sheath. In one embodiment, a plurality of holes are formed at spaced intervals along the length of the sheath.Type: GrantFiled: October 21, 1999Date of Patent: February 20, 2001Assignee: Emerson Electric Co.Inventor: Donald M. Cunningham
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Patent number: 6191401Abstract: A heat maintaining food container includes a container for depositing a food product therein and a ferrous material heated element, which has been heated to a selected temperature by electromagnetic induction heating, positioned in close proximity to the food product. The heated element comprises one or more substantially planar carbon steel sheets having a thickness of about 0.005″ to 0.030″ and having an insulative layer fixed to one side of the sheet. The sheet is preferably foldable to take the form of a U-shape or an O-shape for substantially surrounding the food product when placed in the container. Alternatively, the material of the food container may contain a ferrous material wherein the container itself is preheated to a selected temperature by electromagnetic induction heating.Type: GrantFiled: May 27, 1999Date of Patent: February 20, 2001Inventors: Mark Salerno, Roberta Salerno
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Patent number: 6191402Abstract: An apparatus that enables a homogenous heating and an efficient measurement of organic as well as a mixture of organic and inorganic materials. The apparatus is characterized in that a load, placed in a cavity with very small dimensions in relation to the wavelength in vacuum at applied frequency, is heated by a generated pulsating near field.Type: GrantFiled: April 21, 1999Date of Patent: February 20, 2001Assignee: Antrad System ABInventor: Lars Sven Erling Ekemar
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Patent number: 6191403Abstract: A high frequency heating cooking apparatus is capable of preventing from rusting and reducing the cost substantially at the same time. The heating compartment of the high frequency heating cooking apparatus of the invention comprises a side wall, a top panel, and a bottom panel. By folding and plating one plated steel plate, the side wall having a left side wall, a right side wall, and a back side wall is formed. The plated steel plate has a function of preventing from rusting. The top panel is made of a stainless steel material, and this top panel has a power feed port, an intake hole, and an exhaust hole. The side wall made from a plated steel plate does not have opening ends of holes such as intake hole and exhaust hole.Type: GrantFiled: November 30, 1998Date of Patent: February 20, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuji Hayakawa, Ichiro Hori
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Patent number: 6191404Abstract: A charge-coupled imaging device (FIG. 3) is thinned to allow for backside illumination. The device is further enhanced using ion implantation techniques to establish an electrical field (44) at the back surface, which functions to drive free electrons to potential wells generated beneath a gate structure (40) on the front surface. The device structure allows for both front side and backside illumination and is useful as a imaging device in applications where it is necessary to combine images from two different optical sources. The imaging device is particularly useful in terrestrial guidance systems (FIG. 5) where the imaging device is used to detect guide stars from a large guide star field. In such systems, the imaging device must be translated within an X-Y plane in order to cover the entire guide star field. In order to accurately know the position of the imaging device, optical fiducial marks are imaged onto a side of the imaging device opposite the side receiving the guide star photons.Type: GrantFiled: February 25, 1992Date of Patent: February 20, 2001Assignee: Hughes Danbury Optical Systems, Inc.Inventors: Richard R. Poole, Enrique Garcia
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Patent number: 6191405Abstract: In an image processing apparatus, an image reading unit reads a document put on a platen glass to generate image data, and a detector in the image reading unit detects a tilt angle of the document put on the platen glass. A rotation angle is set based on the image data of a document and the image data is modified according to the rotation angle. The modification is controlled so as not to deteriorate the image quality. For example, the image data is rotated by an angle at which the document is tilted when the document is read, if the detected tilt angle of a document is larger than a predetermined value. The modification of the image data may be controlled according to a characteristic of the image data. For example, the image data is not rotated when the document is decided to include a half-tone image by detecting the attribute of the image data.Type: GrantFiled: June 5, 1998Date of Patent: February 20, 2001Assignee: Minolta Co., Ltd.Inventors: Nobuhiro Mishima, Kazuhiro Ueda, Daisetsu Tohyama
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Patent number: 6191406Abstract: A data reader has a digital image detector an optical system imaging on the digital image detector, and a marker beam source that emits a diverging, centerless visible light projection. A data reading system includes the data reader and media bearing: a visible primary image and a secondary image overlying the visible image. The secondary image is transparent to visible radiation and modulates a band of invisible electromagnetic radiation. The media also bears visible indicia aligned with the secondary image.Type: GrantFiled: July 24, 1998Date of Patent: February 20, 2001Assignee: Eastman Kodak CompanyInventors: David J. Nelson, Robert C. Bryant, Carl F. Leidig
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Patent number: 6191407Abstract: The present disclosure teaches a method and apparatus for use in stabilizing images. The invention operates to sense the position of a locating symbol having a known relationship to the image to be stabilized, compare the position of the locating symbol to a reference to determine a displacement value responsive thereto and changing a correction element located in the conveyance path of the image in response to the displacement value to cause a compensating displacement of the image. The invention is particularly useful in reducing gate weave in film projectors.Type: GrantFiled: December 2, 1998Date of Patent: February 20, 2001Inventor: J. Carl Cooper
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Patent number: 6191408Abstract: A photosensor signal processing apparatus is used in combination with an image sensor comprised of a matrix of pixels or photosensors capable of producing an output as a linear function and a logarithmic function of incident illumination. The apparatus includes a correction data storage device which stores therein a set of data about the respective photosensors for the correction of individual outputs of the photosensors, and a correcting device for correcting the respective output values of the photosensors on the basis of the correction data. Thus, even when the individual outputs of the photosensors generate have different characteristics, the output characteristic variation between the photosensors are corrected such that the output characteristics of all the photosensors agree with a reference output characteristic. A fixed pattern noise resulting from the pixel-to-pixel output characteristic variation can be suppressed.Type: GrantFiled: April 13, 1999Date of Patent: February 20, 2001Assignee: Honda Giken Koygo Kabushiki KaishaInventors: Sukeyuki Shinotsuka, Katsuhiko Takebe, Toshiaki Tanaka, Toshio Imai
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Patent number: 6191409Abstract: An image sensor comprises conversion cells (41ij) arranged into a matrix for generating conversion voltage in response to incident light, and a processing section for performing a processing of deriving the conversion voltage. The conversion cells comprise a transistor and a photodiode for changing, after predetermined voltage is set with the initial setting of the processing section, the predetermined voltage in response to incident light and outputting it as the conversion voltage, a transistor for amplifying the conversion voltage, a transistor for outputting the amplified conversion voltage to the processing section, and a transistor for applying voltage corresponding to the threshold of the transistor to predetermined voltage set to the photodiode upon the initial setting.Type: GrantFiled: May 4, 1999Date of Patent: February 20, 2001Assignee: NEC CorporationInventor: Yoshinori Muramatsu
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Patent number: 6191410Abstract: A device for sensing and digitizing a fingerprint from a subject finger comprising a prism, a pixilated illuminating radiation source such as a surface-emitting laser or a radiation source and a LCD affixed to the bottom surface of the prism and providing for the internal illumination, with a plurality of sub-beams, of the contact surface where the finger of the subject is pressed and the top surface of the prism, and a photoelectric sensor to detect the sub-beam radiation reflected from the fingerprint valley points. The fingerprint ridge contact points do not reflect incident sub-beam radiation. A computer can provide for sequential emission of the sub-beams so that a single cell photoelectric sensor can be used to detect the reflected sub-beams or a multiple cell photoelectric sensor can be used, with each cell corresponding to a particular sub-beam. Reflected sub-beam radiation corresponds to a fingerprint valley point. Non-reflected sub-beam radiation corresponds to a fingerprint ridge point.Type: GrantFiled: June 23, 1999Date of Patent: February 20, 2001Assignee: International Automated Systems, IncInventor: Neldon P. Johnson
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Patent number: 6191411Abstract: A photoelectric conversion apparatus alternate-currently separates a reference electrical potential of a photoelectric conversion unit having the drive detection circuits 102, 202 for driving the sensor substrates 101, 201 of which a plurality of photoelectric conversion elements are arranged on an insulating substrate and the photoelectric conversion elements, and for detecting signals from the photelectric conversion elements, and a reference electrical potential of the control unit 3 for controlling the the photoelectric conversion unit. As a result of this, a reduction of a noise could be achieved.Type: GrantFiled: April 3, 1998Date of Patent: February 20, 2001Assignee: Canon Kabushiki KaishaInventor: Noriyuki Kaifu
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Patent number: 6191412Abstract: Gain and error correction circuitry for metal-oxide-semiconductor (MOS) analog storage circuits, including image sensors. The correction circuitry allows the analog output signal for a storage cell to substantially track an input signal in each cell. Voltage dependent distortion and attenuation in the output signal, with respect to the input signal, is minimized, without significantly increasing the size of each cell.Type: GrantFiled: May 3, 2000Date of Patent: February 20, 2001Assignee: Intel CorporationInventor: Morteza Afghahi
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Patent number: 6191413Abstract: An arrangement for detecting an electromagnetic energy such as ambient light is provided with a photodetector having an input for receiving electromagnetic energy, and an output for producing an electrical characteristic responsive to the electromagnetic energy. A hollow conduit having a first end is arranged to receive a portion of the ambient electromagnetic energy, and a second end thereof is arranged in the vicinity of the photodector input. Thus, a portion of the received potion of the ambient electromagnetic energy impinges upon the photodetector input. The first end of the hollow conduit is terminated at a predetermined angle with respect to an axis of the first end, and a diffuser is optionally disposed in the vicinity of the first end of the hollow conduit.Type: GrantFiled: June 26, 1998Date of Patent: February 20, 2001Inventor: Dennis J. Hegyi
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Patent number: 6191414Abstract: A pressure transducer using as a component for changing shape in response to a change in the pressure being measured a composite elongated body, with specially arranged reinforcing fibers. Such a pressure transducer can use various means for sensing the change in shape of the elongated body, including an optical fiber affixed to the elongated body so as to itself change in length in response to a change in pressure, and having a Bragg grating as part of the optical fiber, with the Bragg grating positioned and arranged so as to convey, in response to an optical signal, information about the change in shape of the elongated body. The elongated body is provided with at least one pair of contra-helically wound reinforcing fibers, which may even be bi-axially braided, and are wound either to amplify the effect of pressure acting on the elongated body or to insulate the elongated body from the effects of pressure and other sources of stress.Type: GrantFiled: June 4, 1999Date of Patent: February 20, 2001Assignee: CiDRA CorporationInventors: Peter C. Ogle, Arthur D. Hay, Alan D. Kersey
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Patent number: 6191415Abstract: A position transducer has a moving modulating portion that can move to various positions through rotation, for example. The position transducer provides at least one analog signal that varies periodically with the moving position of the modulating portion, where the movement of the modulating portion has a period. The analog signal is provided to a converter that converts the analog signal into digital information which is applied to a computing arrangement to provide information as to the position of the modulating portion by using at least one transformation including stored information as to deviations of the periodic variation of the analog signal relative to a sinusoidal shape having a constant amplitude for all periods of movement of the modulating portion.Type: GrantFiled: June 7, 1999Date of Patent: February 20, 2001Assignee: Stridsberg Innovation ABInventor: Lennart Stridsberg
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Patent number: 6191416Abstract: A stream of gas can be thermally decomposed in a tube along which a radiant heating wire extends to a stream of free atoms or radicals. The wire, which can be formed as a coil is connected at one end of the tube close to its outlet so that the tube provides an electrical contact for the wire and mechanically supports it.Type: GrantFiled: February 18, 1999Date of Patent: February 20, 2001Assignee: Forschungszentrum Julich GmbHInventors: Karl G. Tschersich, Johannes Fleischhauer
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Patent number: 6191417Abstract: A method is provided of operating a mass spectrometer apparatus comprising a pair of quadrupole rod sets. Each quadrupole rod set is operated in a mass resolving mode. They may be operated in the same or different stability regions. The rod sets are operated to select essentially ions of the same mass to charge ratio, and are operated such that the combined resolution of the two rod sets is greater than the resolution of either rod set. The rod sets can be operated at relatively low resolution, with the combined peak shape from the two rod sets showing high resolution. This can make up for mechanical imperfections in the rod sets, losses due to high gas pressures, etc. A mass shift can be provided to give the desired resolution. The rod sets can be close coupled, and for this purpose neutralizing capacitors can be provided to prevent electrical interference between adjacent rod sets.Type: GrantFiled: November 10, 1998Date of Patent: February 20, 2001Assignee: University of British ColumbiaInventors: Donald J. Douglas, Zhaohui Du, Bruce A. Collings
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Patent number: 6191418Abstract: An electrospray apparatus employing multiple electrospray needles mounted on a rotatable plate sequentially delivers multiple sample streams to a mass spectrometer for analysis. The electrospray device includes an electrospray chamber, a rotatable needle supporting plate, a plurality of electrospray needles mounted on the plate, and a charger for applying a charge to droplets delivered to the electrospray chamber by the needles. The rotatable electrospray apparatus provides fast repetitive screening of simultaneously operating chromatography columns with a single mass spectrometer.Type: GrantFiled: April 29, 1998Date of Patent: February 20, 2001Assignee: Synsorb Biotech, Inc.Inventors: Ole Hindsgaul, David C. Schriemer
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Patent number: 6191419Abstract: An electrostatic sector device for a mass spectrometer is formed from a single piece of machinable ceramic. The machined ceramic is coated with a nickel coating, and a notch is etched in the nickel coating to form two separated portions. The sector can be covered by a cover formed from a separate piece of machined ceramic.Type: GrantFiled: August 6, 1998Date of Patent: February 20, 2001Assignee: California Institute of TechnologyInventor: Mahadeva P. Sinha
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Patent number: 6191420Abstract: In an infrared sensor including a compensating element and an infrared sensitive element, the main bodies of which consist of temperature-sensing layers of germanium and are supported on a single-crystal silicon substrate with bridge structures of silicon oxynitride layers; infrared protection layers individually made of aluminum and/or gold with a thickness of 0.1-1.0 &mgr;m formed on both sides of the main body of the compensating element via insulating layers of silicon oxynitride of about 0.1-10 &mgr;m for almost completely shielding the compensating element from incident infrared rays and improving the sensor's sensitivity.Type: GrantFiled: June 18, 1998Date of Patent: February 20, 2001Assignee: Terumo Kabushiki KaishaInventor: Terumitsu Souma
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Patent number: 6191421Abstract: A capnometer includes an airway adaptor for introducing a respiratory gas into the analyzer, an infrared radiation source emitting infrared radiation passed through the airway adaptor, a beam splitter for reflecting and transmitting infrared radiation that impinges on the beam splitter, first detecting means for detecting the infrared radiation reflected by said beam splitter and transmitting through said beam splitter, second detecting means for detecting the infrared radiation reflected by said beam splitter and transmitting through said beam splitter; a gas cell filled with CO2 gas, said gas cell being located between one of said first and second detecting means and said beam splitter and processing means for processing a concentration of carbon dioxide gas by using output signals of said first and second detecting means.Type: GrantFiled: October 3, 1997Date of Patent: February 20, 2001Assignee: Nihon Kohden CorporationInventors: Shinji Yamamori, Hidetoshi Dainobu, Hidehiro Hosaka
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Patent number: 6191422Abstract: A hand-held radiation probe is configured having a crystal thickness as well as a bias generated electrical field which have values to cause the semiconductor crystal to operate in a trapping-dependent operational mode wherein a trapping of substantially all carriers generated by radiation impinging upon the crystal forward face are trapped. The bias level voltage is selected to achieve adequate photopeak heights and to permit the windowing out of lower energy Compton scattering and other noise phenomena.Type: GrantFiled: October 6, 1998Date of Patent: February 20, 2001Assignee: Neoprobe CorporationInventor: Marlin O. Thurston
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Patent number: 6191423Abstract: Electron-optical rotationally symmetrical lenses inevitably suffer from spherical aberration which often imposes a limit on the resolution. This lens defect cannot be eliminated by compensation by means of rotationally symmetrical fields. In order to enhance the resolution nevertheless, it has already been proposed to correct the spherical aberration by means of a correction device provided with two hexapoles (24, 26) and two rotationally symmetrical transmission lens systems (28, 30). Each transmission lens system in the known correction device consists of two lenses. According to the invention, one or both transmission lens systems can be replaced by a single lens without reducing the corrective capacity (when only one system 30 is replaced) or while reducing it only slightly (when both systems 28, 30 are replaced).Type: GrantFiled: December 10, 1998Date of Patent: February 20, 2001Assignee: Philips Electron Optics B.V.Inventors: Marcellinus P. C. M. Krijn, Karel Diederick Van Der Mast
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Patent number: 6191424Abstract: A production line irradiation apparatus used to sterilize medical equipment, food or agricultural and waste materials. The apparatus is compact in size and allows a continuous throughput of products to be irradiated, while preventing harmful radiation from escaping. The apparatus comprises: primary shield means for blocking radiation; secondary shield means for blocking radiation; an irradiation device; and conveyor means. The primary shield means further includes a central cavity therein and a channel extending therethrough which intersects the cavity and accommodates the conveyor means. The secondary shield means comprises a plurality of discrete open containers, the containers having front and rear walls, the walls being substantially the size of the channel opening. The walls of the primary and secondary shield means are of sufficient density to fully attenuate the radiation produced by the irradiation device.Type: GrantFiled: December 3, 1998Date of Patent: February 20, 2001Assignee: I-AX TechnologiesInventors: Andrew J. Stirling, Gerald E. Hare
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Patent number: 6191425Abstract: A plurality of samples are separated into sample components by means of electrophoresis in a plurality of capillaries. Light is radiated onto the separated sample components. Fluorescence emitted from the sample components is measured by a detector unit. In the detector unit, the fluorescence from the sample components is collected by a lens, filtered by a filter set to select light of predetermined wavelengths, split into four bundle of rays by right-angle prisms, and focussed on four linear array sensors so as to be detected.Type: GrantFiled: February 13, 1998Date of Patent: February 20, 2001Assignee: Hatachi, Ltd.Inventor: Kazumichi Imai
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Patent number: 6191426Abstract: A cassette in which a radiographic image converting plate is accommodated, comprises a case having an opening; a tray on which the radiographic image converting plate is loaded; and a cap capable of being fitted with the opening, the cap connected with the tray so that the tray is moved together with the cap so as to be inserted into or drawn out from the case through the opening, the position of the cap capable of being displaced relative to the tray.Type: GrantFiled: November 4, 1998Date of Patent: February 20, 2001Assignee: Konica CorporationInventors: Kazushi Hayakawa, Masakazu Ando