Casting Of Film (e.g., Sheet, Tape, Etc.) Patents (Class 264/650)
  • Patent number: 10981346
    Abstract: This document describes systems and processes for forming improved synthetic molded slabs suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 20, 2021
    Assignee: Cambria Company LLC
    Inventors: Jon Louis Grzeskowiak, II, Martin E. Davis
  • Patent number: 10981293
    Abstract: This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 20, 2021
    Assignee: Cambria Company LLC
    Inventors: Jon Louis Grzeskowiak, II, Martin E. Davis
  • Patent number: 10773418
    Abstract: This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 15, 2020
    Assignee: Cambria Company LLC
    Inventors: Jon Louis Grzeskowiak, II, Martin E. Davis
  • Patent number: 10692653
    Abstract: The present disclosure provides a ceramic sintered body having a favorable dielectric constant. In some embodiments of the present disclosure, the ceramic sintered body includes a semiconductor ceramic phase dispersed in a dielectric ceramic phase, wherein the semiconductor ceramic phase and the dielectric ceramic phase jointly form a percolative composite, and a volume fraction of the semiconductor ceramic phase is close to and less than a percolation threshold.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 23, 2020
    Assignee: YAGEO CORPORATION
    Inventor: Masayuki Fujimoto
  • Patent number: 9625335
    Abstract: A pressure measuring cell includes at least one ceramic measuring membrane body; and at least one ceramic platform, wherein the measuring membrane body is connected with the platform along an annular, peripheral joint. The joint is formed as a welded connection between the measuring membrane body and the platform, wherein the measuring membrane body has a pressure-dependently deformable measuring membrane. A pressure sensor includes a pressure measuring cell and a housing, wherein the pressure measuring cell is held by the housing, and wherein the pressure measuring cell closes a housing opening, through which the pressure measuring cell communicates with an environment of the housing. A seal is clamped between a sealing surface surrounding the opening of the housing and a sealing surface of the pressure measuring cell.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: April 18, 2017
    Assignee: ENDRESS + HAUSER GMBH + CO. KG
    Inventors: Andrea Berlinger, Ulfert Drewes, Michael Philipps, Andreas Rossberg, Elke Schmidt
  • Patent number: 9289923
    Abstract: This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 22, 2016
    Assignee: Cambria Company LLC
    Inventors: Jon Louis Grzeskowiak, II, Martin E. Davis
  • Publication number: 20150108697
    Abstract: A method for producing ferrite ceramic includes the steps of providing a ferrite powder; oven-drying the ferrite powder; adding organic additives into the oven-dried powder and mixing them to form a ferrite slurry; debubbling the ferrite slurry and then tape casting it into a green tape; heating the green tape in air to 300-500° C. for 5 h to remove the organic additives from the green tape; sintering the organic additives removed green tape at 900-1000° C. for 2-5 h to obtain ferrite ceramic.
    Type: Application
    Filed: September 15, 2014
    Publication date: April 23, 2015
    Applicant: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Shaohua Su, Jinhui Yu
  • Patent number: 8894920
    Abstract: A method for making a thin, free-standing ceramic sheet may include drawing a carrier film proximate a casting head and across a casting bed of a tape caster at a rate from about 2 cm/min to about 500 cm/min. Depositing a thin film of ceramic slip less than about 150 ?m on the carrier film with the casting head. The ceramic slip may comprises a ceramic powder with an ultimate crystallite size of less than about 10 ?m dispersed in a fluid vehicle such that the ceramic slip has a ceramic solids fraction of greater than about 20% by volume. The deposited ceramic slip may be dried on the carrier film thereby forming a green ceramic sheet on the carrier film. After the green ceramic sheet is dried, the green ceramic sheet may be sintered.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: November 25, 2014
    Assignee: Corning Incorporated
    Inventors: Lanrik Kester, Thomas Dale Ketcham, Brian Scott Kirk, Dell Joseph St Julien
  • Publication number: 20140342237
    Abstract: Disclosed are a separator for an electrochemical device substantially comprising inorganic particles to provide an excellent mechanical strength, an electrochemical device comprising the same, and a method of manufacturing the separator using a high internal phase emulsion (RIPE).
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Inventors: Jin-Woo Kim, Joo-Sung Lee, Jong-Hun Kim
  • Publication number: 20140328747
    Abstract: Provided is a zinc oxide sputtering target, which can effectively suppress the occurrence of break or crack in the target during sputtering to enable production of a zinc oxide transparent conductive film with high productivity. The zinc oxide sputtering target is composed of a zinc oxide sintered body comprising zinc oxide crystal grains, wherein the zinc oxide sputtering target has a sputter surface having a (100) crystal orientation degree of 50% or more.
    Type: Application
    Filed: June 16, 2014
    Publication date: November 6, 2014
    Inventors: Jun YOSHIKAWA, Katsuhiro IMAI, Koichi KONDO
  • Patent number: 8801935
    Abstract: A process for preparing a reverse osmosis membrane that includes: (A) providing a polyamine, a polyfunctional acid halide, and a flux increasing additive having the formula Z+B? where Z+ is an easily dissociable cation and B? is a beta-diketonate; (B) combining the polyamine, polyfunctional acid halide, and flux increasing additive on the surface of a porous support membrane; and (C) interfacially polymerizing the polyamine and the polyfunctional acid halide, and flux increasing additive on the surface of the porous support membrane to form a reverse osmosis membrane comprising (i) the porous support membrane and (ii) a discrimination layer comprising a polyamide. The reverse osmosis membrane is characterized by a flux that is greater than the flux of the same membrane prepared in the absence of the flux increasing additive.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 12, 2014
    Assignee: NanoH2O, Inc.
    Inventors: Jeffrey Alan Koehler, Christopher James Kurth
  • Patent number: 8753558
    Abstract: A method of forming a shaped abrasive particle includes extruding a mixture into an opening in a screen within an application zone and translating the screen and belt to a release zone and separating the screen and belt to form a precursor shaped abrasive particle on the belt, wherein the screen and belt are separated at a release angle of at least about 15° and not greater than about 45°, wherein the release angle is defined as an angle between a surface of the screen and a surface of the belt.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: June 17, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Michael D. Kavanaugh
  • Publication number: 20140066287
    Abstract: A sintered aluminum nitride substrate having a thermal conductivity of about 60 W/m-K to about 150 W/m-K, a flexural strength of about 200 MPa to about 325 MPa, a volume resistivity of greater than 1010 Ohm cm, a density of at least about 95% of theoretical, optionally at least 97%, and a reflectance factor of at least about 60% substantially over the wavelength range of 360 nm to 820 nm. A low temperature process for sintering aluminum nitride includes providing an AlN sintering formulation of AlN powder and a sintering aid of yttria, calcia, and optionally added alumina, forming the AlN sintering formulation into a green body, and sintering the green body at a temperature of about 1675° C. to 1750° C.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 6, 2014
    Inventors: Jonathan H. HARRIS, Thomas NEMECEK, Robert TESCH
  • Patent number: 8652378
    Abstract: The present invention relates to rapid dissolve thin film drug delivery compositions for the oral administration of active components. The active components are provided as taste-masked or controlled-release coated particles uniformly distributed throughout the film composition. The compositions may be formed by wet casting methods, where the film is cast and controllably dried, or alternatively by an extrusion method.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: February 18, 2014
    Assignee: MonoSol Rx LLC
    Inventors: Robert K. Yang, Richard C. Fuisz, Garry L. Myers, Joseph M. Fuisz
  • Patent number: 8636945
    Abstract: A method for producing crystalline particles including a mixing step of producing a mixed material containing a lead-containing material and an additional material containing lithium and boron and a first firing step of firing the mixed material at a predetermined firing temperature to form polyhedral crystalline particles. The crystalline particles are used to produce a crystallographically oriented ceramic by preparing a template layer having uniform crystal orientation in a predetermined direction by fixing the crystalline particles on a substrate, forming a shaped body including a matrix layer arranged on the template layer, the matrix layer being composed of a mixed material that contains a lead-containing material and an additional material containing lithium and boron, and firing the shaped body.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: January 28, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Takaaki Koizumi, Takuya Katsuno, Hideki Shimizu
  • Publication number: 20140007936
    Abstract: Provided are a method for patterning a mesoporous inorganic oxide film, the method including a step of forming a mesoporous inorganic oxide film using a composition containing inorganic oxide particles; and a step of forming a pattern on the mesoporous inorganic oxide film using an elastic stamp for pattern formation, and then calcining the mesoporous inorganic oxide, and an electronic device including a mesoporous inorganic oxide film that has been patterned by the patterning method.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: EUN KYOUNG KIM, JONG HAK KIM, JEONG HUN KIM, JONG KWAN KOH, JONG BEOM NA, CHI HYUN PARK
  • Patent number: 8617456
    Abstract: This invention describes a novel type of materials named by the inventors as Interface-Defined nano-Laminates (IDnL), and a new method for fabricating these materials from ceramic, metallic, and other powders. The laminate layer thickness in IDnL is smaller than that of ordinary laminates, but greater than that of superlattices. IDnL are fundamentally different from ordinary laminates in that their properties are defined by interfaces, and not by the properties of the bulk materials comprising individual layers. In contrast to superlattice materials, IDnL can be made thermally stable, due to the wide selection of interface-defining materials, which allows judicial use of equilibrium phase diagrams, and the “entropic stabilization” approach discovered by the authors; and in addition IDnL can be manufactured inexpensively in bulk, industrial quantities and large sizes by the techniques revealed in this invention. The degree of interface coherency in an IDnLs can be varied to optimize material properties.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: December 31, 2013
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Alexander Pechenik, Wesley P. Hoffman
  • Patent number: 8609017
    Abstract: Electronically tunable dielectric materials having favorable properties are disclosed. The electronically tunable materials include an electronically tunable dielectric phase such as barium strontium titanate in combination with at least two additional metal oxide phases. The additional metal oxide phases may include, for example, oxides of Mg, Si, Ca, Zr, Ti and Al. The electronically tunable materials may be provided in bulk, thin film and thick film forms for use in devices such as phased array antennas, tunable filters and the like. The materials are useful in many applications, including the area of radio frequency engineering and design.
    Type: Grant
    Filed: February 17, 2007
    Date of Patent: December 17, 2013
    Assignee: BlackBerry Limited
    Inventors: Louise C. Sengupta, Xubai Zhang, Luna H. Chiu
  • Patent number: 8597567
    Abstract: A ceramic sheet is produced by a method in which inorganic particles including, as a main component, an oxide represented by general formula ABO3 and containing a volatile component are mixed such that the A/B ratio is 1.05 or more, the inorganic particles are formed into a self-supported planar shaped body with a thickness of 30 ?m or less, and the shaped body is fired, without an inactive layer or with an inactive layer which does not substantially react with the shaped body and is disposed adjacent to the shaped body, at a temperature-rising rate of 30° C./min or more in a temperature range which is equal to or higher than a temperature at which the volatile component is volatilized.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: December 3, 2013
    Assignee: NGK Insulators, Ltd.
    Inventors: Shohei Yokoyama, Nobuyuki Kobayashi, Tsutomu Nanataki
  • Patent number: 8586493
    Abstract: A silicon nitride sintered body, wherein in a silicon nitride substrate consisting of crystal grains of ?-type silicon nitride and a grain boundary phase containing at least one type of rare earth element (RE), magnesium (Mg) and silicon (Si), the grain boundary phase consists of an amorphous phase and a MgSiN2 crystal phase. The X-ray diffraction peak intensity of any crystal plane of a crystal phase containing the rare earth element (RE) is less than 0.0005 times the sum of the diffraction peak intensities of (110), (200), (101), (210), (201), (310), (320) and (002) of the crystal grains of the ?-type silicon nitride; and the X-ray diffraction peak intensity of (121) of the MgSiN2 crystal phase is 0.0005 to 0.003 times the sum of the X-ray diffraction peak intensities of (110), (200), (101), (210), (201), (310), (320) and (002) of the crystal grains of the ?-type silicon nitride.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: November 19, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventors: Youichirou Kaga, Junichi Watanabe
  • Patent number: 8562899
    Abstract: Electronically tunable dielectric materials having favorable properties are disclosed. The electronically tunable materials include an electronically tunable dielectric phase such as barium strontium titanate in combination with at least two additional metal oxide phases. The additional metal oxide phases may include, for example, oxides of Mg, Si, Ca, Zr, Ti and Al. The electronically tunable materials may be provided in bulk, thin film and thick film forms for use in devices such as phased array antennas, tunable filters and the like. The materials are useful in many applications, including the area of radio frequency engineering and design.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: October 22, 2013
    Assignee: Blackberry Limited
    Inventors: Louise C. Sengupta, Xubai Zhang, Luna H. Chiu
  • Patent number: 8501080
    Abstract: A method for producing a crystallographically oriented ceramic including a preparation step of preparing a template layer having uniform crystal orientation in a predetermined direction, a formation step of forming a shaped body including a matrix layer arranged on the template layer, the matrix layer being composed of a mixed material that contains a lead-containing material and an additional material containing lithium and boron, and a firing step of firing the shaped body formed in the formation step at a predetermined firing temperature. Furthermore, after the firing step, a post-annealing step of heating the shaped body to remove lithium and boron may be included.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: August 6, 2013
    Assignee: NGK Insulators, Ltd.
    Inventors: Takaaki Koizumi, Takuya Katsuno
  • Patent number: 8496870
    Abstract: This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 30, 2013
    Assignee: Drexel University
    Inventors: Wei-Heng Shih, Wan Y. Shih, Huidong Li
  • Publication number: 20120288626
    Abstract: A self-replicating monolayer system employing polymerization of monomers or nanoparticle ensembles on a defined template provides synthesis of two-dimensional single molecule polymers. Systems of self-replicating monolayers are used as templates for growth of inorganic colloids. A preferred embodiment employs SAM-based replication, wherein an initial monolayer is patterned and used as a template for self-assembly of a second monolayer by molecular recognition. The second monolayer is polymerized in place and the monolayers are separated to form a replicate. Both may then function as templates for monolayer assemblies. A generic self-replicating monomer unit comprises a polymerizable moiety attached by methylene repeats to a recognition element and an ending unit that will not interfere with the chosen recognition chemistry. The recognition element is self-complementary, unless two replicating monomers with compatible cross-linking chemistry are employed.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Joseph M. Jacobson, David W. Mosley
  • Patent number: 8304133
    Abstract: The invention provides a method for producing a polymer electrolyte membrane including (A) a membrane formation step of forming a membrane-form product of an ionic group-containing polymer electrolyte on a support, (B) an acid treatment step of exchanging the ionic group into an acid type by bringing the membrane into contact with an inorganic acid-containing acidic liquid, (C) an acid removal step of removing a free acid in the acid-treated membrane, and (D) a drying step of drying the acid-removed membrane, wherein the steps (B) to (D) are carried out without separating the membrane from the support.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: November 6, 2012
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kousuke Sasai, Hiroki Yamaguchi, Yoshimitsu Sakaguchi, Kouta Kitamura, Masahiro Yamashita
  • Patent number: 8277713
    Abstract: An implantable analyte sensor including a sensing region for measuring the analyte and a non-sensing region for immobilizing the sensor body in the host. The sensor is implanted in a precisely dimensioned pocket to stabilize the analyte sensor in vivo and enable measurement of the concentration of the analyte in the host before and after formation of a foreign body capsule around the sensor. The sensor further provides a transmitter for RF transmission through the sensor body, electronic circuitry, and a power source optimized for long-term use in the miniaturized sensor body.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: October 2, 2012
    Assignee: DexCom, Inc.
    Inventors: James R. Petisce, Mark Brister, Mark Shults, James H. Brauker, Paul V. Neale
  • Patent number: 8241569
    Abstract: This invention relates to lead-free piezoelectric ceramic films and a method of making thereof. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 14, 2012
    Assignee: Drexel University
    Inventors: Wei-Heng Shih, Wan Y. Shih, Huidong Li
  • Patent number: 8236226
    Abstract: Methods for changing the shape of a surface of an article are disclosed. The methods may include providing a liquid polymer precursor, casting the precursor against a first tool assembly, curing the precursor to form a shape memory polymer substrate, deforming one or more surfaces of the substrate, and mobilizing the shape memory polymer to shift the deformed surface of the substrate from a deformed shape to a pre-set shape.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 7, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, William J Bryan, Robert K. Galkiewicz, Mieczyslaw H. Mazurek, James R. Starkey, Wendi J. Winkler, Haiyan Zhang, Jeffrey M. Olofson
  • Patent number: 8211345
    Abstract: This invention provides an optical film having a reduced thickness and an increased width, which is free from bleedout with the elapse of time (during storage) in a continuous wound state, a method for manufacturing an optical film, and a polarizing plate using the optical film. The optical film is a plasticizer-containing optical film having an overall width of 1500 mm to 4000 mm produced by a solution casting method. The amount of the plasticizer present in the center portion in the surface side of the optical film is determined as value A by TOF-SIMS. The amount of the plasticizer present in the center portion in the back side is determined as value B by the TOF-SIMS. Value X is determined by formula 1 based on the values A and B. The amount of the plasticizer present in the end portion in the surface side of the optical film is determined as value A? by TOF-SIMS, and the amount of the plasticizer present in the end portion of the back side is determined as value B? by the TOF-SIMS.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: July 3, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Masahiro Shibuya
  • Publication number: 20120135215
    Abstract: A free-standing zeolite membrane and a zeolite membrane supported on a support structure are disclosed. The free-standing zeolite membrane is fabricated by mixing zeolite particles and an optional inorganic binder, forming a green body, and sintering the green body at a sufficiently low temperature so as to prevent damage to the gas selectivity properties of the zeolite particles. The supported composite zeolite membrane is fabricated by mixing a sacrificial binder, an optional inorganic binder, boehmite sol and zeolite particles to form a slurry. The slurry is then coated onto a porous support structure, dried and sintered at a sufficiently low temperature so as to prevent damage to the gas selective properties of the zeolite particles. In both membranes, the zeolite particles span the entire thickness of the membrane to provide a high selectivity path for the flow of gas to pass therethrough.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Kevin Paul McEvoy, Hrishikesh Keshavan, Anthony Yu-Chung Ku, Steven Mitchell Kuznicki, Weizhu An, Lan Wu, Paul Donald Swenson
  • Patent number: 8119554
    Abstract: Shaped bodies having catalytic properties which can be obtained by a process comprising the steps: a) production of a shaped body by means of a powder-based rapid prototyping process, b) if appropriate, a heat treatment of the shaped body, c) if appropriate, application of at least one catalytically active component to the shaped body, d) if appropriate, a further heat treatment, where steps b), c) and/or d) can be carried out a number of times, are used as reactor internals in heterogeneously catalyzed chemical reactions.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: February 21, 2012
    Assignee: BASF SE
    Inventors: Nawid Kashani-Shirazi, Veronika Wloka, Wolfgang Gerlinger, Andrea Schmidt, Kerstin Heinen, Wolfgang Kollenberg
  • Publication number: 20110176277
    Abstract: Provided are a silicon nitride substrate made of a silicon nitride sintered body that is high in strength and thermal conductivity, a method of producing the silicon nitride substrate, and a silicon nitride circuit substrate and a semiconductor module that use the silicon nitride substrate. According to the silicon nitride sintered body, in a silicon nitride substrate consisting of crystal grains 11 of ?-type silicon nitride and a grain boundary phase containing at least one type of rare earth element (RE), magnesium (Mg) and silicon (Si), the grain boundary phase consists of an amorphous phase 12 and a MgSiN2 crystal phase 13; the X-ray diffraction peak intensity of any crystal plane of a crystal phase containing the rare earth element (RE) is less than 0.0005 times the sum of the diffraction peak intensities of (110), (200), (101), (210), (201), (310), (320) and (002) of the crystal grains of the ?-type silicon nitride; and the X-ray diffraction peak intensity of (121) of the MgSiN2 crystal phase 13 is 0.
    Type: Application
    Filed: July 3, 2009
    Publication date: July 21, 2011
    Applicant: HITACHI METALS, LTD.
    Inventors: Youichirou Kaga, Junichi Watanabe
  • Patent number: 7947213
    Abstract: According to one aspect of the present invention the fuel cell device includes an electrolyte sheet. The electrolyte sheet has a substantially non-porous body of a varied thickness, a relatively smooth surface and a more textured surface with multiple indentations therein, wherein the thickest part of the electrolyte sheet is at least 0.5 micrometers greater than the thinnest part of said electrolyte sheet. The side of the electrolyte sheet with a relatively smooth surface is subjected to the predominately tensile force and the other, more textured surface subjected to predominately compressive force. According to one embodiment, the fuel cell also includes one cathode disposed on the more textured side of said electrolyte sheet at least at least one anode disposed opposite the cathode on the relatively smooth side of aid electrolyte sheet. According to one embodiment, the relatively smooth side of the electrolyte sheet is the fuel facing side and the more textured side is the air-facing side.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: May 24, 2011
    Assignee: Corning Incorporated
    Inventors: Michael E. Badding, Jacqueline L. Brown, Sean M. Garner, Thomas D. Ketcham, Dell J. St. Julien
  • Patent number: 7866487
    Abstract: The problem addressed by this invention is to provide an aromatic polyamide porous film excellent in the capability of being thinned and capable of easily exhibiting stable porosity properties even if it is used for a long period of time at high temperature. This invention can be achieved by an aromatic polyamide porous film that contains an aromatic polyamide as a main component and is such that when an atomic force microscope is used to measure a range of S ?m2 at least on one surface, the sectional area S(10) ?m2 obtained at a depth of 10 nm from the surface and the sectional area S(20) ?m2 obtained at a depth of 20 nm from the surface satisfy the following formulae simultaneously. 0.01?S(10)/S?0.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 11, 2011
    Assignee: Toray Industries, Inc.
    Inventors: Masanori Sueoka, Kenta Nishihara, Akimitsu Tsukuda
  • Patent number: 7799267
    Abstract: The disclosed invention relates to a method of manufacture of transparent ceramics such as yttrium aluminum garnet by tape casting. The method entails forming a mixture of ceramic oxide, dispersant and organic solvent, milling the mixture to produce a first slurry, mixing the first slurry with an organic binder and a plasticizer to form a treated slurry, milling the treated slurry to produce milled slurry, tape casting the milled slurry to produce cast tape, drying the cast tape to produce dried tape, stacking portions of dried tape to form an assembly, compressing the assembly to produce a preform, heating the preform to produce a green preform, and sintering the green preform to produce transparent yttrium aluminum garnet. The method may be used to produce a unitary ceramic product having differing transparent sections as well as transparent ceramic product having a dopant gradient across a portion of the thickness of the product.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: September 21, 2010
    Assignee: The Penn State Research Foundation
    Inventors: Gary L. Messing, Elizabeth R. Kupp, Sang-Ho Lee, Garnia Y. Juwondo, Adam J. Stevenson
  • Patent number: 7794557
    Abstract: A precursor tape casting method is one in which chemical precursors are converted into a final chemical phase from green tapes to products. Because chemical precursors are employed rather than the final powder materials, sintering is not required to form the material. Lower annealing temperatures instead of high temperature sintering allow the formation of grains of about 1 to about 100 nanometers in the final material. In addition, when the final material is a magnetic/insulator composite, improved magnetic properties may be obtained.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 14, 2010
    Assignee: Inframat Corporation
    Inventors: Shiqiang Hui, Yide Zhang, Danny Xiao, Mingzhong Wu
  • Publication number: 20100194005
    Abstract: During the manufacture of slabs with a veined effect a liquid or powder colouring agent is deposited on the surface of a thin layer of starting mixture by means of at least one dispensing device (40) and the resultant mixture is supplied, falling freely, from one end of an extractor belt (30) forming the bottom of a mixture metering/distributor unit, following which the mixture is transferred, falling freely, onto a temporary moulding support (14). This results in the production of slabs provided with veining extending through the entire thickness of the slabs and also visible along the whole edge of the slab, even after it has been machined.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Inventor: Luca Toncelli
  • Patent number: 7754115
    Abstract: A ceramo-ceramic dental prosthesis is made from a patient's negative mandibular impression, including at least one working cavity having an inner surface matching the lower surface of the prosthesis to be produced and left at least by one tooth primed by the dental surgeon to be prosthetized. The method of making the prosthesis includes a step of providing a single-unit wax model used for producing by precision casting a single-unit metal model on which is mounted, by the dental technician, a ceramic, the single-unit model having previously been coated with a stripping product to avoid the adherence of the ceramic on the metal single-unit model after the ceramic is cured on the single-unit metal model.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: July 13, 2010
    Inventor: Germinal Veyrat
  • Patent number: 7730808
    Abstract: Ceramic blades and fabrication methods thereof. A ceramic blade comprises a ceramic body having two sides and an edge. A coating layer is applied on the two sides and the edge, wherein the ceramic body is formed using a scraper to create substantially flat surface and to prevent residual stress damage.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: June 8, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Kuo-Chuang Chiu, Ren-Der Jean, Chuan-Lung Lu
  • Patent number: 7695559
    Abstract: A cement suspension includes the following, in relation to the cement material: water (22-35% by weight); acetic acid (1-10% by weight); plasticizer (up to 8% by weight); and dispersant agent (0-2% by weight), having an apparent viscosity of 0.5-2 Pa·s for the casting speed gradient. Pieces of cement that are prepared from the suspension and which can be used as electronic components are also disclosed.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: April 13, 2010
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Ecole Nationale Superieure de Ceramique Industrielle (ENSCI)
    Inventors: Thierry Chartier, Youssef El Hafiane, Agnes Smith, Jean-Pierre Bonnet
  • Patent number: 7666268
    Abstract: A coating material, green sheet and the method capable of producing a green sheet without a pin hole, having enough strength to be peeled from a support body and excellent surface smoothness even when the green sheet is extremely thin, and being suitable to make an electronic device thin and multilayered, are provided. The present invention provides a green sheet coating material comprising a ceramic powder, a binder resin including a butyral based resin as a main component thereof, and a solvent. The solvent includes a first solvent having an SP value as a solubility parameter of 10 or larger and a second solvent having the SP value of 8 or larger but smaller than 10. The second solvent is included by 20 to 60 wt % and, preferably, 25 to 60 wt % with respect to 100 wt % of the solvent as the entire weight.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: February 23, 2010
    Assignee: TDK Corporation
    Inventors: Hisashi Kobayashi, Shigeki Satou
  • Patent number: 7655180
    Abstract: A method for controlling the shrinkage of ceramic formed bodies is provided, including performing a preliminary test to determine an average shrinkage of ceramic formed bodies made from test lots of a ceramic powder, and determining a linear correlation between the average shrinkage and measured amounts of the ground test lots removed from a ball mill during a specific milling time interval. A batch of the ceramic powder is then ground, an amount of the ground ceramic powder removed from the ball mill during the specific time interval is measured, and the linear correlation is used to estimate the shrinkage of a ceramic body made therefrom. The difference between a target shrinkage and the estimated shrinkage is determined, and one or more of the processing conditions used to form the ceramic body are changed to offset the difference.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: February 2, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Koichi Iwata, Katsuyuki Takeuchi, Takuji Kimura
  • Patent number: 7595019
    Abstract: Method of making an electrochemical device for the recovery of oxygen from an oxygen-containing feed gas comprising (a) preparing a green electrochemical device by assembling a green electrolyte layer, a green anode layer in contact with the green electrolyte layer, a green cathode layer in contact with the green electrolyte layer, a green anode-side gas collection interconnect layer in contact with the green anode layer, and a green cathode-side feed gas distribution interconnect layer in contact with the green cathode layer; and (b) sintering-the green electrochemical device by heating to yield a sintered electrochemical device comprising a plurality of sintered layers including a sintered anode-side gas collection interconnect layer in contact with the anode layer and adapted to collect oxygen permeate gas, wherein each sintered layer is bonded to an adjacent sintered layer during sintering.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: September 29, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Raymond Ashton Cutler, Kent Neal Hutchings, Merrill Anderson Wilson, Ronald Almy Hollis, Dale M. Taylor
  • Patent number: 7413700
    Abstract: A composite material (10) formed of a ceramic matrix composite (CMC) material (12) protected by a ceramic insulating material (14). The constituent parts of the insulating material are selected to avoid degradation of the CMC material when the two layers are co-processed. The CMC material is processed to a predetermined state of shrinkage before wet insulating material is applied against the CMC material. The two materials are then co-fired together, with the relative amount of shrinkage between the two materials during the firing step being affected by the amount of pre-shrinkage of the CMC material during the bisque firing step. The shrinkage of the two materials during the co-firing step may be matched to minimize shrinkage stresses, or a predetermined amount of prestress between the materials may be achieved. An aluminum hydroxyl chloride binder material (24) may be used in the insulating material in order to avoid degradation of the fabric (28) of the CMC material during the co-firing step.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: August 19, 2008
    Assignee: Siemens Power Generation, Inc.
    Inventors: Gary B. Merrill, Jay E. Lane, Steven C. Butner, Robert Kreutzer, Jay A. Morrison
  • Patent number: 7361242
    Abstract: A ceramic slurry composition has a powdered ceramic uniformly dispersed therein without excessive damage thereto. A method for producing a ceramic green sheet using the ceramic slurry composition and a method for producing multilayer ceramic electronic devices are also disclosed. The ceramic slurry composition contains the powdered ceramic, a dispersing agent, a binder and a solvent, in which an anionic dispersing agent is used as the dispersing agent, and the content of the anionic dispersing agent is set to be such that the total acid content thereof corresponds to about 10 to 150% of the total base content of the powdered ceramic. In addition, the powdered ceramic having an average particle diameter of about 0.01 to 1 ?m is used.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: April 22, 2008
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ichiro Nakamura, Hidehiko Tanaka
  • Publication number: 20080023890
    Abstract: Methods for changing the shape of a surface of an article are disclosed. The methods may include providing a liquid polymer precursor, casting the precursor against a first tool assembly, curing the precursor to form a shape memory polymer substrate, deforming one or more surfaces of the substrate, and mobilizing the shape memory polymer to shift the deformed surface of the substrate from a deformed shape to a pre-set shape.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Audrey A. Sherman, William J. Bryan, Robert K. Galkiewicz, Mieczyslaw H. Mazurek, James R. Starkey, Wendi J. Winkler, Haiyan Zhang, Jeffrey M. Olofson
  • Publication number: 20070228622
    Abstract: There is provided a production process of a sheet-like dense cordierite sintered body which hardly generates cracks when dried and sintered, and has excellent formability. A production process of a sheet-like dense cordierite sintered body which has a step of forming a raw material containing cordierite powders having an average particle size of greater than 2 ?m but not greater than 4 ?m into a cordierite green sheet; and sintering the cordierite green sheet at from 1350 to 1450° C.
    Type: Application
    Filed: March 12, 2007
    Publication date: October 4, 2007
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yasumasa Fujioka, Junichi Suzuki, Atsuo Kondou, Masaaki Masuda
  • Patent number: 7148170
    Abstract: Recycled ceramic slurry is produced by a method including the steps: dissolving the waste material of unfired ceramic in a solvent to form a waste solution; and adjusting a composition of the waste solution to thereby produce the recycled ceramic slurry. If the waste material of unfired ceramic includes a metal component, the metal component may be removed therefrom before the step of adjusting the composition of the waste solution.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: December 12, 2006
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Nobuhiro Sasaki, Sadayoshi Kato, Kunihiro Matsushita, Makoto Miyashiro, Hitoshi Kikuchi, Tadashi Itoi
  • Patent number: 7140085
    Abstract: A capacitive vacuum measuring cell includes first and second ceramic housing bodies (1, 4) joined by an edge seal (3). A thin ceramic membrane (2) is supported between first and second housing bodies (1, 4) by the edge seal (3) at a small distance from the first housing body (1) creating a reference vacuum chamber (25) therebetween. An electrically conductive material (7) coats opposing surfaces of the first housing body (1) and the membrane (2) to form a capacitor. A measurement vacuum chamber (26) is provided between the membrane (2) and the second housing body (4). A port (5) communicates with the second housing body (4) to connect the measurement vacuum chamber (26) of the measuring cell to the medium to be measured. The membrane (2) is made from an Al2O3 slurry that is sintered in a first heating step, cooled, and then reheated to smooth the membrane.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: November 28, 2006
    Assignee: Inficon GmbH
    Inventors: Per Bjoerkman, Ray Olsson
  • Patent number: 7131174
    Abstract: A method of production of a ceramic electronic device such as a multilayer ceramic capacitor, comprising forming a first ceramic coating layer on the surface of a substrate, forming an internal electrode on the surface of the first ceramic coating layer, then forming a second ceramic coating layer on the surface of the first ceramic coating layer so as to cover the internal electrode. In this case, when a mean particle size of ceramic particles of the first ceramic coating layer is ?1, a thickness of the first ceramic coating layer is T1, a mean particle size of ceramic particles of the second ceramic coating layer is ?2, and a thickness of the second ceramic coating layer is T2, the conditions of ?1??2, 0.05<?1?0.35 ?m, T1<T2, and 0<T1<1.5 ?m are satisfied. As a result, it is possible to provide a ceramic electronic device, in particular a multilayer ceramic capacitor, resistant to short-circuit defects, withstand voltage defects, and other structural defects.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: November 7, 2006
    Assignee: TDK Corporation
    Inventors: Ryou Kobayashi, Kaname Ueda, Yasushi Izumibe, Hitoshi Ishida, Akira Saitoh