Patents Represented by Law Firm Townsend & Townsend Khourie & Crew
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Patent number: 5432103Abstract: ROM cell programmed ON has N+ source implant spaced a given distance from the gate with LDD bridging the gap between the N+ source and the N channel. ROM cell programmed OFF has P+ implanted into this gap so as to completely override the LDD in this gap. The P+ prevents the N channel from forming ohmic connection to the N+ source.Type: GrantFiled: December 23, 1992Date of Patent: July 11, 1995Assignee: National Semiconductor CorporationInventor: William E. Miller
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Patent number: 5432401Abstract: There is provided a correcting coil of a deflection yoke wherein a correcting coil is brought into close and wide contact with a neck portion of a bobbin 1 of the deflection yoke by slightly altering the correcting coil which is used at present to further improve magnetic permeability and hence the amount of correction of magnetic lines of force. Correcting coil 11A of the deflection yoke includes a hollow correcting coil bobbin 13 on the outer periphery of which a coil 12 is wound and a core 14 configured into a U-shape by superimposing respective ends of two L-shaped core members made by laminating thin magnetic pieces 15 inside the correcting coil bobbin. A magnetic correcting piece 16 is provided which has a wider area and which makes contact with a neck portion 3 of the bobbin 1 of the deflection yoke 10 on the tip end of each leg part of said U-shaped core 14.Type: GrantFiled: October 1, 1993Date of Patent: July 11, 1995Assignee: Murata Mfg. Co., Ltd.Inventors: Tatsuya Satoh, Masahiro Murakami
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Patent number: 5432705Abstract: An administrative computer and testing apparatus device is provided. The administrative computer is coupled to the testing apparatus so that the test data can be correlated with administrative information such as the location of the equipment tested. The administrative computer can control the testing apparatus to provide testing in accordance with predefined test procedures. The administrative computer is user-programmable to permit user-defined test procedures to be established. In one embodiment test data is provided to the administrative computer by using a memory buffer which can be written into by the test apparatus and can be read by the administrative computer. Test data, preferably test data correlated with the location information, can be communicated to a remote computer for further processing or analysis.Type: GrantFiled: May 31, 1991Date of Patent: July 11, 1995Assignee: Itronix CorporationInventors: David Severt, George Siegner, Daren Upchurch, William Erler
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Patent number: 5431676Abstract: An apparatus and method for forming and enlarging percutaneous penetrations comprises an elongate dilation member which receives an elongate expansion member in an axial lumen thereof. The dilation tube includes a tubular braid which usually comprises a mesh of non-elastic filaments which are radially expandable from a small diameter configuration to a large diameter configuration and which is optionally covered by a removable sheath. The dilation tube is percutaneously introduced to a target site within a patient's body, usually within the abdomen in a laparoscopic procedure. The sheath (if present) is then removed, and the tubular braid thereafter radially expanded by axial insertion of the expansion member through its lumen. The tubular braid is anchored by axial shortening of the mesh and remains in place to permit subsequent exchange of dilation members to provide for different diameter access lumens.Type: GrantFiled: March 5, 1993Date of Patent: July 11, 1995Assignee: InnerDyne Medical, Inc.Inventors: William R. Dubrul, Craig K. Tsuji
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Patent number: 5432060Abstract: Human bronchial epithelial cell lines permanently transformed by human papilloma viruses have been obtained. These cell lines are useful for the study of growth and differentiation in bronchial carcinoma and the identification of chemical and biological agents that may be useful in the therapy of human lung cancer.Type: GrantFiled: February 21, 1992Date of Patent: July 11, 1995Assignee: The United States of America, as represented by the Secretary of the Department of Health and Human ServicesInventors: James C. Willey, Curtis C. Harris
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Patent number: 5431669Abstract: The invention provides a surgical clip applier particularly useful in laparoscopic and other least invasive surgical procedures. The clip applier includes a shaft having a distal end and a proximal end, the shaft defining an axial direction. Means are provided in the shaft for advancing a clip to the distal end. Hook means are fixed to the distal end of the shaft, the hook means having a distal portion disposed transverse to the shaft so as to define a surface facing in a proximal direction for engaging a tissue structure. A pair of movable jaws are mounted at the distal end of the shaft and are axially slidable relative to the hook means for closing a clip on a tissue structure engaged by the hook means. The movable jaws will define a U-shaped slot open in a generally distal direction. Means are further provided for advancing the jaws to a position adjacent the distal portion of the hook means, as well as means for closing the jaws.Type: GrantFiled: July 16, 1993Date of Patent: July 11, 1995Assignee: Origin Medsystems, Inc.Inventors: Todd Thompson, Albert K. Chin
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Patent number: 5432727Abstract: An arithmetic unit wherein a plurality of electrical signals corresponding to the mantissa is shifted and a bit signal corresponding to the sticky bit is calculated simultaneously with the calculation of the shift count. Initially, a serial approach to mantissa shifting and sticky bit calculation is employed. A parallel approach to matissa shifting and sticky bit calculation is adopted when all shift count bits are available. In one embodiment of the present invention, an exclusive OR gate is used to calculate the difference between the least significant bits of the first and second exponents. A shifter/sticky bit calculator immediately acts upon the output of the exclusive OR gate and begins shifting the mantissa and calculating the guard, round, and sticky bits. The more significant bits of the shift count are progressively generated thereafter, and the guard, round and sticky bits are calculated and the mantissa is shifted as the shift count bits become available.Type: GrantFiled: July 1, 1991Date of Patent: July 11, 1995Assignee: Intergraph CorporationInventor: Sadar U. Ahmed
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Patent number: 5432447Abstract: Disclosed is a phase unwrapping technique based on the solution of the Poisson equation. The problem of phase unwrapping in the continuous domain is formulated using an optimization approach where a cost functional is minimized. The minimizer is shown to be a solution of the Poisson equation with an appropriate boundary condition; the choice of the boundary condition depends on the particular application. The solution to the Poisson equation, i.e., the phase that minimizes the cost functional is referred to as the least squares phase. The least squares phase has thereby been unwrapped but, in general, will differ from the absolute phase due to noise. Using the least squares phase, the absolute phase is finally determined with an operator that maps the least squares phase to the absolute phase so that the computed absolute phase and the measured phase differ by multiples of 2.pi..Type: GrantFiled: August 11, 1993Date of Patent: July 11, 1995Assignee: Board of Trustees of the Leland Stanford Junior UniversityInventor: Samuel M. Song
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Patent number: 5431785Abstract: The proposed multilayer head box for a paper machine or similar is constructed so that it can produce a wide jet consisting of at least three individual jets (5, 5', 5") The individual jets are fed through separate channels (3, 3", 3") and emitted out of the head box and subsequently combine to form a single wide jet. The individual channels are so constructed that further outer lying jets can be diverted sufficiently after having been emitted out of their respective channel, so that they meet the respective further inner lying partial stream at a very slight angle. The problem of separation when the partial streams are diverted as well as that of undesired lateral mixing when the partial streams are combined are thereby prevented.Type: GrantFiled: July 22, 1993Date of Patent: July 11, 1995Assignee: Sulzer-Escher Wyss GmbHInventors: Alfred Bubik, Klaus Lehleiter
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Patent number: 5432054Abstract: A method for isolating and enriching rare cells, including fetal nucleated erythrocytes from a peripheral blood sample is described. The method includes two centrifugation steps, the first a bulk separation step to enrich erythrocytes from other blood components. The second centrifugation comprises a colloidal density gradient medium dispersed in a hypertonic meltable gel. In one aspect of the invention, maternal erythrocytes may be hemolyzed prior to the second density gradient centrifugation to provide additional enrichment for fetal nucleated erythrocytes.Type: GrantFiled: January 31, 1994Date of Patent: July 11, 1995Assignee: Applied ImagingInventors: Alexander M. Saunders, Michael A. M. Zarowitz, Patricia J. Baldwin
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Patent number: 5429131Abstract: Tachycardial arrhythmias are located and ablated by a combination of first and second catheters which are mutually attracted by magnetized regions at their distal ends. One of the catheters contains mapping electrodes and is initially used to ascertain the locus of the arrhythmia by conventional mapping. Once this is accomplished, the catheter is allowed to remain in position while the second catheter is inserted in such a manner that mutual magnetic attraction between the two occurs across cardiac tissue. One or the other of the two catheters also contains an ablation component at its tip, such that when the two catheter tips are held in position by virtue of their mutual magnetic attraction, ablation can be performed.Type: GrantFiled: February 25, 1994Date of Patent: July 4, 1995Assignee: The Regents of the University of CaliforniaInventors: Melvin M. Scheinman, Thomas F. Kordis
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Patent number: 5430365Abstract: A regulator circuit supplies a regulated low, DC voltage that is derived from an unregulated voltage provided by a pair of redundant batteries. The regulator circuit comprises regulation control that responds to a feedback signal developed from monitoring the regulated voltage to maintain the regulated voltage at a desired level. Battery monitors supervise the voltage levels of the batteries used, and shut down the regulator when the battery voltages drop below a predetermined voltage level to preserve battery life.Type: GrantFiled: July 2, 1993Date of Patent: July 4, 1995Assignee: Tandem Computers IncorporatedInventors: Mark A. Taylor, Samson K. Toy
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Patent number: 5429936Abstract: A variety of chemical reactions are rate enhanced by the use of antibodies whose antibody binding sites are complementary to the reactant orientations or transition states which lead to the desired product. The reactions include pericyclic reactions such as Claisen and Cope rearrangements and Diels Alder reactions, peptide bond hydrolysis reactions, peptide fragment ligations, lactonizations and cyclic peptide syntheses, glycosylations, aldol additions, nucleoside syntheses and transesterification reactions. Haptens which are stable analogues of unstable transition states, or which are analogues of desired products, in some cases with leaving groups still attached for purposes of avoidance of product inhibition, are used to generate the antibodies.Type: GrantFiled: April 21, 1989Date of Patent: July 4, 1995Assignee: The Regents of the University of CaliforniaInventors: Peter G. Schultz, Paul A. Bartlett
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Patent number: 5430805Abstract: An electromagnetic transducer diaphragm having an electrical conductor layer, with a conductor pattern, positioned between two insulating layers of a flexible, electrically-insulating material bonded together to protect the diaphragm. An electrical current can flow through the conductors to produce magnetic and electrostatic fields around said conductors which interact with an electromagnetic field to produce mechanical displacement of the diaphragm which in turn produces an audio signal. Non-ferrous supports can be used to support the diaphragm. A magnet or magnets may be used to create the electromagnetic field. The magnets can be bonded to the cross arms of the non-ferrous support.Type: GrantFiled: June 29, 1994Date of Patent: July 4, 1995Assignee: Chain Reactions, Inc.Inventors: Charles Stevenson, Edward Porrazzo
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Patent number: 5430480Abstract: A motion sensor is mounted within a camera, and measures motion data such as translation, rotation, and zoom. The motion data is then associated with the video frame data captured by the camera. In some embodiments, the motion data is used to remove jitter in the frame data due to camera movement, and in some embodiments, the motion data is used to remove global motion from frame data before compression. Since the motion data is kept with the video frame data, the motion data is available during decompression of the video frames.Type: GrantFiled: March 7, 1994Date of Patent: July 4, 1995Assignee: Ricoh California Research CenterInventors: James Allen, Martin Boliek, Steven Blonstein, Michael Gormish
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Patent number: 5430523Abstract: An image printer includes a projection-exposure section for projecting an image born on a film onto a photosensitive material, an image-exposure section for exposing the photosensitive material based on image information comprised of a plurality of image areas each including color data relating to a plurality of colors, and a transport device for transporting the photosensitive material through the projection-exposure section and the image-exposure section. The image-exposure section includes an exposure device for dividing the image information into a plurality of lines and exposing the photosensitive material with switching exposing colors corresponding to the plurality of color data by switching over a plurality of color filters, and a moving device for moving the exposure device and the photosensitive material relative to each other in a direction perpendicular to the lines.Type: GrantFiled: March 9, 1994Date of Patent: July 4, 1995Assignee: Noritsu Koki Co., Ltd.Inventor: Tohru Tanibata
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Patent number: 5430135Abstract: The present invention relates, in general, to substantially pure preparations of the cynomolgus monkey hepatitis A viral isolates CY-145 and CY-55/JM-55; cDNAs of the genomic RNAs of cynomolgus monkey hepatitis A viral isolates CY-145 and CY-55/JM-55; a method of preventing hepatitis A in an animal; and vaccines comprising the cynomolgus monkey hepatitis A viral isolates CY-145 and CY-55/JM-55.Type: GrantFiled: July 6, 1993Date of Patent: July 4, 1995Assignee: The United States of America as represented by the Department of Health and Human ServicesInventors: Omana V. Nainan, Harold S. Margolis, Betty H. Robertson, Margo A. Brinton, James W. Ebert
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Patent number: 5429658Abstract: The invention relates to a method for processing environmentally undesirable materials including petroleum coke and the sulfur and heavy metals contained therein and oily steel and iron ferrous waste from machine shop and steel and iron processing to provide fuel and a charging material for a process of making molten iron or steel preproducts and reduction gas in a melter gasifier.Type: GrantFiled: March 28, 1994Date of Patent: July 4, 1995Assignee: Bechtel Group, Inc.Inventor: Richard B. Greenwalt
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Patent number: D360075Type: GrantFiled: February 3, 1994Date of Patent: July 11, 1995Assignee: Kensington Microware LimitedInventors: Claire Cross, Sarah Kelley
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Patent number: D360191Type: GrantFiled: April 1, 1993Date of Patent: July 11, 1995Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz