Patents Assigned to Coval
  • Patent number: 7381362
    Abstract: To provide a method for producing a ceramic porous material which has a high strength, though it has a high porosity, and which is excellent in permeability without dust generation. In a ceramic porous material having a three-dimensional mesh-like skeleton structure with a large number of substantially spherical adjacent cells communicating with each other via communication holes, the crystal particle size at the rim of each communication hole in the skeleton structure is provided substantially equal to the crystal particle size in the other parts.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: June 3, 2008
    Assignee: Covalent Materials Corporation
    Inventors: Hideo Uemoto, Kazuhide Kawai, Shunzo Shimai, Takashi Matsuyama
  • Patent number: 7374955
    Abstract: The present invention provides a method of manufacturing a silicon wafer where a defect does not exist at a wafer surface layer part on which a device is formed, without affecting productivity and production costs of the wafer. An ingot of a silicon single crystal is grown by way of Czochralski single crystal pulling method, this silicon single crystal ingot is sliced to produce a wafer, then a surface layer of the wafer is annealed for between 0.01 microseconds and 10 seconds (inclusive) by means of a laser spike annealing apparatus such that a temperature of a wafer surface layer part is between 1250° C. and 1400° C. (inclusive).
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: May 20, 2008
    Assignee: Covalent Materials Corporation
    Inventor: Koji Izumome
  • Patent number: 7368564
    Abstract: This invention is related to the fields of organic chemistry and nanotechnology. In particular, it relates to materials and methods for the preparation of organic synthons and bridged macrocyclic module compounds. The bridged macrocyclic module compounds may be used to prepare macrocyclic compositions such as nanofilms, which may be useful for filtration.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: May 6, 2008
    Assignee: Covalent Partners, LLC
    Inventors: Jeffery A. Whiteford, William Freeman, Joshua W. Kriesel
  • Patent number: 7368757
    Abstract: A back electrode 6 is formed in the back of a Si single crystal substrate 2 of a compound semiconductor in which an n-type 3C-SiC single crystal buffer layer 3 having a thickness of 0.05-2 ?m, a carrier concentration of 1016-1021/cm3, a hexagonal InwGaxAl1-w-xN single crystal buffer layer 4 (0?w<1, 0?x<1, w+x<1) having a thickness of 0.01-0.5 ?m, and an n-type hexagonal InyGazAl1-y-zN single crystal layer 5 (0?y<1, 0<z?1, y+z?1) having a thickness of 0.1-5 ?m and a carrier concentration of 1011-1016/cm3 are stacked in order on an n-type Si single crystal substrate top 2 having a crystal-plane orientation {111}, a carrier concentration of 1016-1021/cm3, and a surface electrode 7 is formed on a surface of a hexagonal InyGazAl1-y-zN single crystal layer 5, so as to provide a compound semiconductor device which causes little energy loss and allows an high efficiency and a high breakdown voltage.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: May 6, 2008
    Assignee: Covalent Materials Corporation
    Inventors: Jun Komiyama, Yoshihisa Abe, Shunichi Suzuki, Hideo Nakanishi
  • Publication number: 20080095903
    Abstract: The invention relates to an apparatus (1) for preparing a beverage (2) comprising a brew chamber (10) defining a volume for containing at least one container (11) with a soluble or extractable product for preparing said beverage, wherein said apparatus comprises adjustment means (12, 14) for varying the volume (V) of said brew chamber. Preferably the adjustment means include a cover member (12) with a piston portion (25). The invention also relates to a method for preparing a beverage.
    Type: Application
    Filed: December 21, 2004
    Publication date: April 24, 2008
    Applicants: MARTEX HOLLAND B.V., ELECTRICAL & ELECTRONICS LTD., COVAL ART TEC LIMITED
    Inventor: Marcel Weijers
  • Patent number: 7361384
    Abstract: An apparatus and method for coating pipelines with a hot melt adhesive coating and a tape. The coating may comprise a copolymer of an alkyl substituted hydrocarbon polymer in combination with a diene polymer and the tape to overly the coating may comprise a polymeric backing. Furthermore, the tape may also include a pressure sensitive adhesive.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 22, 2008
    Assignee: Covalence Specialty Materials Corp.
    Inventor: Abboud L. Mamish
  • Patent number: 7336892
    Abstract: It is provided that a reflection plate of semiconductor heat treatment, which is resistant to cracks or deformations by controlling the adsorption of foreign materials and the production of reaction. Said reflection plate 1 for semiconductor heat treatment is composed of a disk-shaped or ring-shaped plate of optically transmissible material and a plate 2 of inorganic material hermetically enclosed in said disk-shaped or ring-shaped plate, in which said plate of inorganic material has at least one side in contact with said plate of optically transmissible material, said at least one side 2a having a surface roughness of Ra 0.1 to 10.0 ?m, said at least one side 2a formed grooves 2c therein.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: February 26, 2008
    Assignees: Covalent Materials Corporation, Tokyo Electron Limited
    Inventors: Kazuhiko Shimanuki, Hiroyuki Honma, Norihiko Saito, Hideyuki Yokoyama, Takanori Saito, Ken Nakao
  • Patent number: 7291220
    Abstract: A silicon wafer made by the Czochralski method, including a ring-shaped OSF region and having nitrogen concentration ranging from 2.9×1014 to 5.0×1015 atoms/cm3 and oxygen concentration of 1.27×1018 to 3.0×1018 atoms/cm3 is heat-treated in a reducing-gas or inert-gas atmosphere, by increasing the temperature at the rate of 0.5° C./min to 2.0° C./min until the wafer is heated to a heat-treatment temperature of 1000 to 1200° C.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: November 6, 2007
    Assignee: Covalent Materials Corporation
    Inventor: Yumiko Hirano
  • Patent number: 7262485
    Abstract: A substrate 1 for growing an electro-optical single crystal thin film in which two or more layers of buffer layers 3, 4, and 5 for buffering lattice mismatch between Si and BTO are formed on an Si (001) substrate 2 is provided as a substrate for growing an electro-optical single crystal thin film which can obtain an electro-optical single crystal thin film of BTO single crystal thin film 6 etc. with a large size and a very high quality.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: August 28, 2007
    Assignee: Covalent Materials Corporation
    Inventors: Yoshihisa Abe, Shunichi Suzuki, Hideo Nakanishi, Jun Komiyama
  • Patent number: 7253289
    Abstract: This invention describes a one pot, single-step process for the preparation of halide-free hydrophobic salts comprising polyalkylated imidazolium cations and various anions in accordance with the following structure, where R1 and R3 represent the either the same or different alkyl groups, and R2, R4, and R5 represent either hydrogen atoms, or the same or different alkyl group substituents; X represents a polyatomic anion that is the conjugate base of an acid.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: August 7, 2007
    Assignee: Covalent Associates, Inc.
    Inventors: Rex Xiaofeng Ren, Victor R. Koch
  • Publication number: 20060270846
    Abstract: The present invention relates to the preparation of synthons that are used to form modules that, in turn, are used to form two-dimensional close-packed planar arrays, referred to as nanomembranes. In a presently preferred embodiment, a nanomembrane herein constitutes a filter.
    Type: Application
    Filed: August 18, 2005
    Publication date: November 30, 2006
    Applicant: Covalent Partners, LLC
    Inventors: Timothy Karpishin, Josh Kriesel, Grant Merrill, Donald Bivin, Thomas Smith, Martin Edelstein
  • Patent number: 7129210
    Abstract: A tissue adhesive sealant includes a cross-linkable protein in a solution that when combined with a cross-linking agent solution including an aldehyde and amino acid containing species reactive with the aldehyde cross-links to form a seal. The sealant is well suited for bonding tissue alone or in combination with a patch. The ratio between the aldehyde and the amino acid containing species is between 20:1 and 1:1 on an aldehyde moiety:amino acid or peptide subunit molar basis. Particularly strong seals are formed when the protein and cross-linking agent are present in a molar ratio of between 15:1 and 1:1.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: October 31, 2006
    Assignee: Covalent Medical, Inc.
    Inventors: Johan Lowinger, Bruno Lowinger, Frank DeLustro, David Cox, David A. Browdie
  • Patent number: 7089871
    Abstract: A tier sheet for supporting a plurality of containers disposed in rows on the tier sheet and for supporting and separating a plurality of tiers of the containers to provide a tiered stack of the containers. Projections at the edge portions of the tier sheet extend from and above an upper surface and extend from and below a lower surface of the tier sheet sufficiently to impede lateral movement of an outside container disposed at an outside row from displacing the outside container from the stack.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: August 15, 2006
    Assignee: Covalence Specialty Materials Corp.
    Inventor: Edward E. Smith, Jr.
  • Publication number: 20040034223
    Abstract: The present invention relates to the preparation of synthons that are used to form modules that, in turn, are used to form two-dimensional close-packed planar arrays, referred to as nanomembranes. In a presently preferred embodiment, a nanomembrane herein constitutes a filter.
    Type: Application
    Filed: February 7, 2002
    Publication date: February 19, 2004
    Applicant: CoValent Partners, LLC.
    Inventors: Timothy B. Karpishin, Josh Kriesel, Grant Merrill, Donald B. Bivin, Thomas H. Smith, Martin Stuart Edelstein
  • Patent number: 6531241
    Abstract: Cyclic delocalized cations joined together by spacer groups, with anions of equal number to cations to maintain charge neutrality, are disclosed. These spacer groups may be organic or inorganic in origin and may vary in length. The spacer groups may be saturated, containing single bonds, or may be unsaturated, containing double and triple bonds. With appropriate design these materials can have melting and glass transition temperatures below, around, and above room temperature. The lyophobic character of these materials may be adjusted, providing unique properties. These materials are well suited for use as electrolytes, lubricants, solvents for extractions and for running reactions, biphase catalysis media, media for electroluminescent devices.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: March 11, 2003
    Assignee: Covalent Associates, Inc.
    Inventor: Alan B. McEwen
  • Patent number: 5994000
    Abstract: Acyclic, asymmetric methyl alkyl carbonates, particularly for use with a carbonaceous, e.g., graphite, anode, in electrolytes suitable for portable power sources, are disclosed. Asymmetric alkyl carbonate solvents, having the general structural formula MeO--CO.sub.2 R, where R is larger than methyl, can be used as the only solvent in the non-aqueous electrolyte of a portable power source; no other solvent is necessary for superior performance in, e.g., high energy density lithium ion batteries or high power electrochemical capacitors. Furthermore, an asymmetric alkyl methyl carbonate can serve as the primary solvent for a non-aqueous electrolyte, i.e., the solvent providing the requisite properties, with the appropriate volume balance being made up with a combination of cyclic and acyclic carbonates or esters chosen for a particular application.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: November 30, 1999
    Assignee: Covalent Associates, Inc.
    Inventors: Yair Ein-Eli, Richard Laura
  • Patent number: 5986879
    Abstract: Acyclic, asymmetric ethyl alkyl carbonates, particularly for use with a carbonaceous, e.g., graphite, anode, in electrolytes suitable for portable power sources, are disclosed. Asymmetric alkyl carbonates having the general structural formula EtO--CO.sub.2 R, where R is larger than ethyl, and most preferably equal to butyl, iso-butyl or sec-butyl, are particularly useful in causing the freezing point of the electrolytes in which they are used to decrease dramatically, thus providing the key to low temperature, high cycle life and high capacity for portable power sources.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: November 16, 1999
    Assignee: Covalent Associates
    Inventors: Yair Ein-Eli, Richard Laura
  • Patent number: 5973913
    Abstract: An electrochemical capacitor is disclosed that features two, separated, high surface area carbon cloth electrodes sandwiched between two current collectors fabricated of a conductive polymer having a flow temperature greater than 130.degree. C., the perimeter of the electrochemical capacitor being sealed with a high temperature gasket to form a single cell device. The gasket material is a thermoplastic stable at temperatures greater than 100.degree. C., preferably a polyester or a polyurethane, and having a reflow temperature above 130.degree. C. but below the softening temperature of the current collector material. The capacitor packaging has good mechanical integrity over a wide temperature range, contributes little to the device equivalent series resistance (ESR), and is stable at high potentials. In addition, the packaging is designed to be easily manufacturable by assembly line methods.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: October 26, 1999
    Assignee: Covalent Associates, Inc.
    Inventors: Alan B. McEwen, David A. Evans, Thomas J. Blakley, Jay L. Goldman
  • Patent number: D551900
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: October 2, 2007
    Assignee: Covalence Specialty Materials Corp.
    Inventors: Susan Ann Glander, Timothy Andrew Bachman
  • Patent number: D555412
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 20, 2007
    Assignees: Martex Holland B.V., Electrical & Electrical Ltd., Coval Art Tec Limited
    Inventors: Alfred Hendrik Van Elk, Marinus Burcht Holwerda