Patents Assigned to E
  • Patent number: 6841505
    Abstract: A catalyst composition prepared from (a) titanium tetrahydrocarbyloxide, (b) zirconium tetrahydrocarbyloxide, and (c) tetraalkyl ammonium hydroxide, wherein the molar ratio of Zr:Ti is from about 0.02:1 to about 5:1 and the molar ratio of TAAH:(Ti+Zr) is from about 0.05:1 to about 2:1.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: January 11, 2005
    Assignee: E..I. du Pont de Nemours and Company
    Inventor: John H. Eng
  • Patent number: 6841493
    Abstract: The present invention is directed to a glass composition comprising, based on mole %, 15-35% MO where M is selected from BaO, CaO, MgO, PbO, SrO and mixtures thereof, 30-60% TiO2, 10-30% B2O3, 1-7% P2O5, 0-3% Li2O and 2-16% Ln2O3 where Ln is selected from the group of rare earth elements and mixtures thereof. The invention is further directed to the glass composition incorporated in a thick film composition or a castable dielectric composition comprising a dispersion of finely divided solids comprising, based on solids: (a) 30-100 wt. % the glass composition; (b) 0-50 wt. % ceramic filler; both dispersed in a solution of (c) an organic polymeric binder; and (d) a volatile organic solvent. The invention is still further directed to the castable dielectric composition used in a method of forming a high K green tape by casting a thin layer of the castable dispersion onto a flexible sheet and heating the cast layer to remove the volatile organic solvent.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Yong Cho, Kenneth Warren Hang
  • Patent number: 6841088
    Abstract: The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates to methods for replacing a chlorofluorocarbon or hydrochlorofluorocarbon and a non-oxygenated lubricant composition with a fluorocarbon and an oxygenated lubricant composition in a compression refrigeration system without flushing residual non-oxygenated lubricant from the system.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Barbara Haviland Minor
  • Patent number: 6841243
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward William Tokarsky, William Cheng Uy, Robert Thomas Young
  • Patent number: 6842657
    Abstract: In one embodiment of the invention, a method of manufacturing a semiconductor device comprises the steps of: a) providing an organic semiconductor layer; b) depositing a reactive species on a portion of the organic semiconductor layer; and c) reacting the reactive species with the portion of the organic layer to form a dielectric layer.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: January 11, 2005
    Assignee: E Ink Corporation
    Inventors: Paul S. Drzaic, Jianna Wang
  • Patent number: 6841520
    Abstract: This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with aryl cyano compounds utilizing a metal catalyst, which is optionally supported.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Leo Ernest Manzer
  • Patent number: 6839977
    Abstract: A stariway can be constructed by using movable tread/riser supports placed along a stairway stringer and the supports can be moved as a group or individually to accomodate a stairway slope of any desired degree. It is desirable to mark a stringer for the uniform equal spacing of the location for the tread/risers and to establish the pivot positions for mounting the supports on the stringer. The present invention is an apparatus that will permit a user to locate the desired pivot holes equally spaced and aligned along a stringer.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 11, 2005
    Assignee: E Z Stairs, Inc.
    Inventor: Richard Truckner
  • Patent number: 6840288
    Abstract: A woven fabric useful in protective apparel made from yarn components comprising a body fabric yarn component, a synthetic ripstop yarn component having at least 20% greater tensile strength than the body fabric yarn component, and a cut resistant yarn component comprising a yarn having a synthetic staple-fiber sheath and inorganic core, the body fabric yarn component, the ripstop yarn component, and cut-resistant yarn components all being comprised of at least one yarn and each yarn component distinguished from the adjacent yarn component by interweaving orthogonal yarn components.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Reiyao Zhu, Richard H. Young
  • Patent number: 6842167
    Abstract: Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surface to enable greater viewing angle and contrast. Another scheme includes an electrode structure that facilitates manufacture and control of a color display. Another electrode structure facilitates addressing a display using an electrostatic stylus. Methods of using the disclosed electrode structures are also disclosed. Another scheme includes devices combining display materials with silicon transistor addressing structures.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 11, 2005
    Assignee: E Ink Corporation
    Inventors: Jonathan D. Albert, Barrett Comiskey
  • Patent number: 6840706
    Abstract: Road safety barrier includes a resistant part and one or two dampening parts for a lateral barrier or a traffic divider respectively. The resistant part of the wall type barrier may be rigidly connected to steel plates which are equally spaced and have been specifically conceived for increasing the resistance during an impact caused by a heavy vehicle. The plates have a slot for the passage of ductile screw anchors, allowing the initial displacement of the resistant part and its connection to the support. If provided, the ductile anchor parts are covered by the dampening part.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: January 11, 2005
    Assignee: Autostrade Concessioni e Costruzioni Autostrade S.p.A.
    Inventors: Gabriele Camomilla, Stefano Bruschi
  • Patent number: 6842544
    Abstract: A method for making an apodized Bragg grating in a photosensitive, planar, linear waveguide. A photosensitive, planar, linear waveguide is provided on a surface of a substrate. A patterned phase mask is placed between the waveguide and a laser beam. The waveguide is exposed through the phase mask to the laser beam wherein either the laser beam is moving at a substantially constant velocity with respect to the substrate and phase mask, or the substrate and phase mask are moving at a substantially constant velocity with respect to the laser beam. The beam has a smoothly varying intensity profile, and the exposure is conducted at an angle of more than 0° and less than 90° to the longitudinal axis of the waveguide under conditions sufficient to induce a modulation in the index of refraction of the waveguide and impart an apodized Bragg grating in the waveguide corresponding to the phase mask pattern.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Louay Eldada
  • Publication number: 20050000813
    Abstract: Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating.
    Type: Application
    Filed: February 9, 2004
    Publication date: January 6, 2005
    Applicant: E INK CORPORATION
    Inventors: Anthony Pullen, Thomas Whitesides, Charles Honeyman, Barrett Comiskey, Jonathan Albert
  • Publication number: 20050003183
    Abstract: The invention relates to oxide ceramic fiber composite materials that, e.g., according to the invention, are used in energy conversion installations. The present invention discloses a fundamentally new concept for the previously incompatible requirements of improved brittle fracture behavior to secure thermal shock stability and damage tolerance in the temperature range of <1000° C. and of mechanical high-temperature stability to guarantee long-term form stability (creep resistance) of components.
    Type: Application
    Filed: May 21, 2004
    Publication date: January 6, 2005
    Applicant: Fraunhofer-Gesellschaft zur Forderung Der Angewandten Forschung e. V.
    Inventors: Andreas Krell, Dieter Sporn, Paul Blank
  • Publication number: 20050001812
    Abstract: A gray scale bistable electro-optic display is driven by storing a look-up table containing data representing the impulses necessary for transitions, storing data representing at least an initial state of each pixel of the display, storing data representing temporal and gray level prior states of each pixel, receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary for a transition, as determined from the look-up table, dependent upon the temporal and gray level prior states. Other similar methods for driving such displays are also disclosed.
    Type: Application
    Filed: March 31, 2004
    Publication date: January 6, 2005
    Applicant: E Ink Corporation
    Inventors: Karl Amundson, Robert Zehner, Ara Knaian, Benjamin Zion
  • Patent number: 6838594
    Abstract: This invention relates to an isolated nucleic acid fragment encoding an enzyme involved in lipid biosynthesis. The invention also relates to the construction of a chimeric gene encoding all or a portion of the enzyme involved in lipid biosynthesis, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the enzyme involved in lipid biosynthesis in a transformed host cell.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: January 4, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Anthony J. Kinney, Steven J. Vollmer
  • Patent number: 6839596
    Abstract: A programming system for controlling and/or altering an implantable device's operation using externally applied magnetic means, e.g., a permanent magnet or the like. Typically, such devices stimulate a neural pathway or muscle and/or block pain or muscle stimulation according to programmable settings, e.g., the amplitude, duration, frequency/repetition rates, etc., of stimulation pulses applied to the neural pathways/muscles. Preferably, once programmed from an external programmer, such implantable devices can operate “independently” using the externally provided programmed information. However, external programmers may be unavailable due to cost, size, or other constraints. Accordingly, embodiments of the present invention include a magnetic sensor, preferably a magnetoresistive, Hall effect, saturated core reactors, or the like, to sense an externally provided magnetic field. By externally applying magnetic fields in sequences of controlled polarities, durations, intensities, etc.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: January 4, 2005
    Assignee: Alfred E. Mann Foundation for Scientific Research
    Inventors: Richard J. Nelson, Joseph H. Schulman
  • Patent number: 6838545
    Abstract: Chemical reactions are carried out with molten fluoropolymer, most conveniently in an extruder, wherein the reaction zone in the extruder is isolated from the melting zone, and the molten fluoropolymer is subdivided in the reaction zone sufficiently that contact and reaction between the reactant and the molten fluoropolymer in the reaction zone is essentially free of mass transfer limitation, followed by devolatilization in isolation from the reaction zone, and cooling the devolatilized fluoropolymer.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: January 4, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gregory Allen Chapman, David E. Bidstrup
  • Patent number: 6838023
    Abstract: Disclosed is a new vanadium oxide hydrate composition suitable for use as electrode-active material in primary and secondary lithium and lithium ion batteries and a process for its preparation.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: January 4, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Carmine Torardi
  • Patent number: 6837467
    Abstract: A receiving plate supporting device includes a base, two supporting portions, a movable plate and two sliding portions. The base has a pair of blocks which are spaced and installed at a wall. Each supporting portion is installed at each block having an upper slide path, a lower slide path and an outside slide path. The movable plate is a rectangular plate with a width corresponding to a distance between the two blocks. Each sliding portion is respectively corresponding to each supporting portion and is installed at the lateral side of the movable plate. Each sliding portion respectively passes through each supporting portion. The movable plate can be placed horizontally or vertically as desired. Therefore, it is space-efficient and convenient. Furthermore, the receiving plate supporting device can be assembled easily, and the structure of each component is easy and is cost-effective.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: January 4, 2005
    Assignee: E-Make Co., Ltd.
    Inventor: Chen Kung Cheng
  • Patent number: 6837074
    Abstract: A method of measuring the twist imparted to an optical fibre includes the steps of advancing the optical fibre in a predetermined direction and at a predetermined velocity, imparting to the optical fibre, during the step of advancing, a twist about its axis, measuring the diameter of the optical fibre during the step of advancing, to generate a time-based signal indicating the diameter, and processing this signal to find a value indicating the imparted twist. The step of processing includes the principal steps of transforming in the frequency domain the signal relating to the measurement of the diameter, calculating the power spectrum of the signal thus obtained, distinguishing in this power spectrum the signal peaks correlated with the imparted twist, determining the maximum frequency associated with these signal peaks, and dividing the value of this maximum frequency by the value of the velocity of advance of the fibre to find the value indicating the imparted twist.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: January 4, 2005
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Franco Cocchini, Arturo Ricco