Producing Honeycomb Shape Patents (Class 264/630)
  • Patent number: 11220021
    Abstract: A system (100) and method to control rheology of ceramic pre-cursor batch during extrusion is described herein. An extrusion system (100) comprises an extruder (122) with an input port (144) configured to feed ceramic pre-cursor batch into a first section (120) of an extruder barrel and a discharge port configured to extrude a ceramic pre-cursor extrudate (172) out of the extruder barrel downstream of the input port (144). A liquid injector (210) is configured to inject liquid into the ceramic pre-cursor batch. A sensor (106) is configured to detect a rheology characteristic of the ceramic pre-cursor batch. A controller (108) is configured (i) to receive the rheology characteristic from the sensor (106), (ii) compare the rheology characteristic to a predetermined rheology value of the ceramic pre-cursor batch, and (iii) generate a command based on the comparison. A liquid regulator (110) is configured to receive the command and adjust liquid flow to the liquid injector (210) based on the command.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 11, 2022
    Assignee: Corning Incorporated
    Inventors: Christopher John Malarkey, Conor James Walsh
  • Patent number: 11187100
    Abstract: A method of forming a blade outer air seal includes applying a cavity layer that has a plurality of cavities to a radially inner side of a seal body. The cavity layer is coated with an abradable coating.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 30, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William M. Barker, Thomas E. Clark
  • Patent number: 11175629
    Abstract: A method for manufacturing a hole jewel, including forming a precursor from a mixture of at least one powder material with a binder; pressing the precursor, with upper lower dies, to form a green body of the future hole jewel including a blind cavity having a height between a height of the green body and a height of the future hole jewel, the cavity being provided with upper and lower portions respectively including blanks of a through hole and of a functional element of the future hole jewel; sintering the green body to form a body of the future hole jewel; machining the body, including a first sub-step of shaping a top of the body, during which a height of the upper portion is configured in readiness for an opening in the through hole blank for connecting the functional element to the upper surface, and a second sub-step of shaping a base of the body to form a lower surface of the hole jewel for connecting the functional element to to the lower surface.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 16, 2021
    Assignee: Comadur S.A.
    Inventors: Bruno Besutti, Thierry Cordier, Pascal Chopard-Lallier
  • Patent number: 11085698
    Abstract: A heating furnace comprising a furnace body; an accommodation space in the furnace body, the accommodation space accommodating a work; an exhaust port; and a heat insulator provided between the accommodation space and the exhaust port, the heat insulator including a pillar-shaped honeycomb structure including ceramic partition walls sectioning a plurality of cells extending from one bottom to another bottom.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 10, 2021
    Assignee: NGK Insulators, Ltd.
    Inventor: Tomoo Nakamura
  • Patent number: 11000835
    Abstract: Catalysts, catalytic forms and formulations, and catalytic methods are provided. The catalysts and catalytic forms and formulations are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane. Related methods for use and manufacture of the same are also disclosed.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 11, 2021
    Assignee: Lummus Technology LLC
    Inventors: Erik M. Freer, Wayne P. Schammel, Fabio R. Zurcher, Joel M. Cizeron, Jin Ki Hong, Anja Rumplecker, Sam Maurer, Joel Gamoras, Daniel Rosenberg, Erik C. Scher
  • Patent number: 10946552
    Abstract: A method performs evaluation of properties of a clay rod, with which a honeycomb structural body is produced. The method mixes raw materials to produce a clay, and extrudes the clay and compresses the extruded clay to produce a clay rod. The method performs NMR to detect at least one of a T1 relaxation time and a T2 relaxation time in each of a normal part and an abnormality part extracted from the clay rod. Each of the T1 relaxation time and the T2 relaxation time corresponds to a relaxation time of nuclear spins of water protons magnetically excited in each of the normal part and the abnormality part. The method performs the evaluation of uniformity of a mixed state and a compression state of the clay rod based on a difference in T1 relaxation time and T2 relaxation time between the normal part and the abnormality part.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 16, 2021
    Assignee: DENSO CORPORATION
    Inventor: Naohiro Hayashi
  • Patent number: 10830113
    Abstract: A filter comprising a columnar honeycomb structure part, the columnar honeycomb structure part including: a plurality of first cells each extending from a first bottom surface to a second bottom surface of the columnar honeycomb structure part, the first bottom surface being opened and the second bottom surface being plugged for the plurality of first cells; a plurality of second cells each extending from the first bottom surface to the second bottom surface of the columnar honeycomb structure part, the first bottom surface being plugged and the second bottom surface being opened for the plurality of second cells; and porous cordierite partition walls that define the first cells and the second cells, the partition walls having an average pore depth of 1.5 ?m or more and 3.5 ?m or less as measured by a laser microscope, and a porosity of from 50 to 60% as measured by a mercury porosimeter.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: November 10, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Shungo Nagai, Takayoshi Shibayama
  • Patent number: 10559819
    Abstract: A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass % inclusive of calcium or 0.15 to 0.55 mass % inclusive of silicon, or contains 0.005 to 1.2 mass % inclusive of calcium and 0.15 to 0.2 mass % inclusive of silicon, or contains 0.005 to 0.1 mass % inclusive of calcium and 0.15 to 0.5 mass % inclusive of silicon.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 11, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Kenji Higashi, Hiroshi Okumura, Yoshiyuki Hirono
  • Patent number: 10450914
    Abstract: The manufacturing method of the plugged honeycomb structure includes a honeycomb structure forming step of forming a pillar-shaped honeycomb structure, and a plugging step of forming plugging portions in end portions of the cells of the honeycomb structure formed in the honeycomb structure forming step, and in the plugging step, there is performed a press pouring operation of pressing one end face of the honeycomb structure into a plugging slurry stored in a bottomed tubular container to pour, under pressure, the plugging slurry into the cells of the honeycomb structure, and as the plugging slurry of the plugging step, there is used a slurry in which a yield point viscosity of a viscous fluidity is 600 Pa·s or more, a recovery viscosity is 300 Pa·s or more, and a high shearing viscosity is 200 Pa·s or less.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 22, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Michio Suzuki, Kojiro Hayashi, Yuji Watanabe
  • Patent number: 10278326
    Abstract: The present invention is directed to an applicator having an agricultural product pneumatic conveying system which meters particulate material from one or more source containers at the application equipment and transports the particulate material to evenly distribute the particulate material from the applicator. The pneumatic conveying system employs large diameter supply lines connected between the metering devices at the source containers and delivery nozzles, where the supply lines operate to move and mix the particulate material from the source containers to the nozzles. The particulate material is metered from the source containers into the supply lines via a number of airlocks that can be operated without allowing airflow from the large diameter supply lines to enter the source containers through the airlocks. In addition, the metering devices can b e operated in collective or independent variable manners to allow for sectional control and turning compensation.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 7, 2019
    Assignee: CNH Industrial Canada, Ltd.
    Inventors: Martin J. Roberge, Joel Denis, Rex L. Ruppert
  • Patent number: 10232298
    Abstract: A honeycomb structure includes a pillar-shaped honeycomb structure body having a porous partition wall. The honeycomb structure body includes a plurality of cells defined by the partition wall so as to extend from a first end face to a second end face of the honeycomb structure body, the partition wall is formed by a porous body including a silicon phase as a main phase, and the silicon phase as the main phase has content of each of metals other than silicon and metals making up silicide that is 0.3 part by mass or less with respect to 100 parts by mass of silicon.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 19, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshio Kikuchi, Masaki Ishikawa
  • Patent number: 10000424
    Abstract: A method for firing a green honeycomb ceramic body in a kiln may include heating the green honeycomb ceramic body in four stages. The first stage may include heating the green honeycomb ceramic body from room temperature to a first temperature that at a first heating rate that is greater than or equal to about 75° C./hr. The second stage may include heating the green honeycomb ceramic body from the first temperature to a second temperature at a second heating rate that is less than or equal to the first heating rate. The third stage may include heating the green honeycomb ceramic body from the second temperature to a hold temperature at a third heating rate that is less than or equal to the first heating rate. The fourth stage may include holding the green honeycomb ceramic body at the hold temperature to remove residual carbon.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 19, 2018
    Assignee: Corning Incorporated
    Inventors: Douglas Munroe Beall, David Jack Bronfenbrenner, Margaret Kathleen Faber, Sriram Rangarajan Iyer, Patrick David Tepesch, Douglas Richard Wing
  • Patent number: 9719385
    Abstract: An object of the present invention is to provide a honeycomb filter having low pressure loss and high collection efficiency. The honeycomb filter of the present invention comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed by a sealing material, wherein the filter layer comprises spherical ceramic particles, and the average particle size of the spherical ceramic particles increases gradually from the fluid inlet side toward the fluid outlet side.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 1, 2017
    Assignee: IBIDEN CO., LTD.
    Inventors: Naoyuki Jinbo, Takeshi Ushida, Akinori Orito, Yuichi Nagatsu
  • Patent number: 9675999
    Abstract: The present invention provides methods for preparing or repairing a chemically-resistant coating such as a porcelain enamel on a metal substrate. One such method involves forming a ground coat on the substrate, cooling the substrate to substantially near ambient temperature, optionally by applying a heat source to cool the substrate slowly, followed by flame-spray depositing a coating material onto the softened ground coat. Then, the substrate is allowed to cool slowly so the chemically-resistant coating can form with less stress. Optionally, an induction coil is used to heat the substrate, both to form the ground coat and to slow the cooling of the substrate.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: June 13, 2017
    Assignee: Glasslined Technologies, Inc.
    Inventors: Robert Davis Lakeman, Thomas R. Roberts
  • Patent number: 9517489
    Abstract: An outer periphery coating method of honeycomb structure has coating steps where the honeycomb structure including a ring-like bulge portion is rotated; a coating member is brought into contact with a side surface of the honeycomb structure by pressing a side edge portion of a spatula via a rubber sheet, the coating member including the plate-like spatula in which a specific cut portion is formed in the one side edge portion and the side edge portion provided with the cut portion is an inclined surface inclined on a coating surface side, and the rubber sheet in which a cut is formed so that an end surface of the end portion is parallel to a back surface of the spatula when the end portion is bent along the side edge portion of the spatula; and a slurry coating material is supplied to the side surface of the honeycomb structure.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: December 13, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Yasumasa Fujioka, Jun Inoue, Daisuke Miura
  • Patent number: 9441879
    Abstract: The drying method for a green honeycomb molded body according to the invention is a method for drying a green honeycomb molded body having a plurality of through-holes. The method includes the steps of: mounting a green honeycomb molded body on a gas dispersion plate; and irradiating the molded body with microwaves simultaneously while supplying heated air through the gas dispersion plate into the through-holes of the molded body, in an atmosphere containing water vapor surrounding the molded body; wherein prior to the supply of heated air and the irradiation of microwaves, a sealing member is situated on the outer side of an edge of the molded body on the gas dispersion plate side, to prevent the heated air from the gas dispersion plate from contacting the outer peripheral wall of the molded body.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: September 13, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Hirofumi Saito
  • Patent number: 9394203
    Abstract: The invention relates to molded functional bodies made of highly thermally conductive materials, namely aluminum nitride, to a method for the production thereof by way of extrusion, and to the use thereof.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 19, 2016
    Assignee: CeramTec GmbH
    Inventors: Gerhard Günthner, Axel Schöler, Alexander Dohn, Alfred Thimm
  • Patent number: 9321189
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading inorganic particles and binder ingredient such that raw material paste including the inorganic particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having multiple through-holes extending in the longitudinal direction of the body and multiple partitions formed between the through-holes, degreasing of the body including heating the body in atmosphere maintaining oxygen concentration of 0.2% or less in the first heating and heating the body in atmosphere having oxygen concentration which is higher than the oxygen concentration of the first heating in the second heating such that a degreased body having the honeycomb structure is formed, and sintering the degreased body having the honeycomb structure such that a ceramic body having the honeycomb structure is formed.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 26, 2016
    Assignee: IBIDEN CO., LTD.
    Inventor: Kazunori Yamayose
  • Patent number: 9233880
    Abstract: A ceramic precursor batch composition comprising inorganic ceramic-forming ingredients, a binder, an aqueous solvent and a heteroatom polyol agent. The heteroatom polyol agent can be represented by X(R) where X is at least one of S, N, and P, and R is at least two of CH3, CH2CH2OH, CH2CH2CH2OH, CH2(CHOH)CH3, C(CH2OH)1-3, CH2OH, CH(CH2OH)CHOH, C(O)(CHOH)1-4CH2OH, and CH2CH2CH2OCH3. The presence of the heteroatom polyol agent provides a composition with a lower viscosity and/or a greater batch stiffening temperature (Tonset) allowing for increased rates of extrusion. Methods for producing a ceramic honeycomb body using this ceramic precursor batch composition are also provided.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 12, 2016
    Assignee: Corning, Incorporated
    Inventor: Mark Alan Lewis
  • Publication number: 20150137431
    Abstract: A method feeds raw material into a metal die and extrudes the raw material to produce a honeycomb molded body. The method fires the honeycomb molded body to make a honeycomb structural body. The metal die has a first metal die and a second metal die arranged at an upstream side of an extrusion direction of the raw material and a second metal die arranged at a downstream side of the extrusion direction of the raw material. The first metal die has a projection section and the second metal die has a penetration hole. The projection section is fitted to the penetration hole to assemble the first metal die and the second metal die. Communication holes formed in the second metal die communicate with raw material second feeding holes formed in the first metal die.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventor: Naohiro HAYASHI
  • Patent number: 9028741
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having multiple through-holes extending in the longitudinal direction of the body and multiple partition portions formed between the through-holes, applying sealant composition including aluminum hydroxide particles, talc particles, kaolin particles, water and organic binder to either end of each through-hole of the body in the longitudinal direction such that the honeycomb structure of the body has each through-hole sealed at one end, and sintering the body made of the raw material paste and having the honeycomb structure sealed by the sealant composition such that a ceramic body having the honeycomb structure is formed.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: May 12, 2015
    Assignee: Ibiden Co., Ltd.
    Inventor: Kazunori Yamayose
  • Publication number: 20150121827
    Abstract: A ceramic plugging paste useful to make plugs having through holes (partial plugs) in a ceramic honeycomb filter in which the plugging paste is comprised of a ceramic particulate and fluid carrier, wherein the ceramic particulate has at least 90% by number of the particulates being less than 50 micrometers and the fluid carrier is present in an amount sufficient such that the plugging paste is fluid enough to be inserted into a ceramic honeycomb channel and be retained in said channel without any other support other than the walls of the honeycomb defining the channel. Such a paste may be easily injected in the same manner as regular pastes. Such pastes and methods advantageously realize plugs having a through hole resulting in honeycomb filters having low pressure drop while still retaining effective particulate filtration.
    Type: Application
    Filed: March 7, 2013
    Publication date: May 7, 2015
    Inventors: Jun Cai, Ashish Kotnis, Janet M. Goss, Paul C. Vosejpka
  • Patent number: 9023270
    Abstract: A method for producing a ceramic honeycomb structure comprising aluminum titanate as a main crystal, comprising the steps of mixing titania powder, alumina powder and amorphous silica powder, the molar ratio of the titania powder to the alumina powder being 45:55 to 55:45, the amount of the amorphous silica powder being 1-10 parts by mass per 100 parts by mass of the total of the titania powder and the alumina powder, to produce a moldable material; extruding said moldable material in a honeycomb shape; drying it; and then sintering it at 1300-1700° C.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: May 5, 2015
    Assignee: Hitachi Metals, Ltd.
    Inventors: Osamu Tokudome, Hirohisa Suwabe
  • Publication number: 20150107206
    Abstract: The porous body satisfies at least one of the following three conditions; “the average value of multiple in-plane uniformity indices ?x is 0.6 or greater, and the spatial uniformity index ? is 0.6 or greater”, “the percentage of the total value of volume of low-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 20% or less, and the percentage of the total value of volume of high-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 10% or less”, and “the percentage of the total value of volume of mid-diameter curved surface solids as to the total value of volume of multiple virtual curved surface solids is 60% or more”.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 23, 2015
    Inventors: Satoshi SAKASHITA, Shingo SOKAWA, Hiroyuki NAGAOKA, Yuichiro WATANABE, Yasushi UCHIDA
  • Patent number: 9011757
    Abstract: A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls comprising at least main crystals of aluminum titanate, in which MgO and SiO2 are dissolved to form a solid solution, and glass phases, the glass phases containing 40-80% by mass of SiO2 and 1-20% by mass of MgO, the average size of the glass phases being 30 ?m or less in a cross section of the cell walls, and the area ratio of the glass phases to the total area of the main crystals of aluminum titanate and the glass phases being 2-12% in a cross section of the cell walls, and its production method.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 21, 2015
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hirohisa Suwabe, Masaru Yoshida, Tomomasa Kumagai, Hideya Yamane
  • Patent number: 9005516
    Abstract: The manufacturing method includes a mixing step of mixing a plurality of zeolite particles, an inorganic binding material and an organic binder, to prepare a zeolite raw material, a forming step of extruding the zeolite raw material to obtain a formed zeolite article, and a firing step of firing the formed zeolite article to prepare the zeolite structure. The mixing step includes an inorganic binding material containing at least one type of silica sol selected from the group consisting of acid silica sol, silica sol containing silica particles coated with alumina, cationic silica sol, silica sol containing string-like silica particles, and silica sol containing bead-like silica particles. A content ratio of silica particles contained in the silica sol selected from the group is from 10 to 30 mass% with respect to 100 mass% of the zeolite particles.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 14, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshio Kikuchi, Haruo Otsuka
  • Patent number: 8999224
    Abstract: A porous ceramic honeycomb article includes a primary cordierite phase and an intercrystalline glass phase. In an as-fired condition, the porous ceramic honeycomb article exhibits microcrack parameter Nb3?0.06 and an as-fired E500° C./E25° C. ratio ?0.99. The article exhibits a coated microcrack parameter Nb3?0.14 and a coated E500° C./E25° C. ratio ?1.06 after the porous ceramic honeycomb article has been washcoated and calcined at a temperature of 550° C. After the article is exposed to a thermal treatment at a temperature ?800° C. following washcoating and calcining, at least a first portion of the porous ceramic honeycomb article has a first treated microcrack parameter Nb3?0.18, and a first treated mean coefficient of thermal expansion of not more than 12×10?7/° C. over a temperature range of 25° C. to 800° C. Methods of forming the porous ceramic honeycomb article are also disclosed.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 7, 2015
    Assignee: Corning Incorporated
    Inventors: Douglas Munroe Beall, Gregory Albert Merkel, Martin Joseph Murtagh
  • Patent number: 8997933
    Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can comprise a plurality interconnected polygonal shapes defining a top standing surface. The platform can be a grating that has load bearing properties and that can be cast from a mold. The platform includes a perimeter wall, a surface portion, and one or more reinforcement walls. A height or thickness of the surface portion is less than a height or thickness of the perimeter wall and/or the reinforcement walls.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 7, 2015
    Assignee: Ardisam, Inc.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson, Brendan Lonergan
  • Patent number: 8992821
    Abstract: A pass-through catalytic substrate can comprise a plurality of porous ceramic substrate walls defining flow channels extending between an inlet end and an outlet end of the catalytic substrate. The pass-through catalytic substrate can include a plurality of porous ceramic beveled corner portions positioned at intersecting corners of the substrate walls within the flow channels. In one example, the porous ceramic beveled corner portions each include a heat capacity less than about 1.38 J/cm3/K. In another example, a catalytic washcoat layer can be provided for coating the porous ceramic substrate walls and the porous ceramic beveled corner portions. Methods for producing a pass-through catalytic substrate also provide porous ceramic beveled corner portions.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 31, 2015
    Assignee: Corning Incorporated
    Inventors: Keith Norman Bubb, Cameron Wayne Tanner
  • Patent number: 8974721
    Abstract: A method of making ceramic bodies includes systematically orienting the bodies during firing relative to a temperature gradient in a kiln. The systematic orientation of the bodies relative to the temperature gradient can allow for an average deviation of a measured shape of the ceramic bodies from a predetermined target contour shape to be less than what they would be if the bodies were oriented randomly relative to the temperature gradient.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: March 10, 2015
    Assignee: Corning Incorporated
    Inventors: Daniel Edward McCauley, Anthony Nicholas Rodbourn, David Robertson Treacy, Jr., Casey Allen Volino
  • Patent number: 8974722
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having through-holes extending in the longitudinal direction of the body and partitions formed between the through-holes, immersing each of end portions of the body in the longitudinal direction into a sealant slurry heated at a temperature in the range of from 50° C. to 100° C. such that the sealant slurry infiltrates into the through-holes at one of the end portions of the body and seals either end of each of the through-holes of the body, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure is formed.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 10, 2015
    Assignee: Ibiden Co., Ltd.
    Inventor: Kazunori Yamayose
  • Patent number: 8968638
    Abstract: The apparatus for injecting slurry contains the first member having the cavity therein; and the second member having a plurality of convex sections, each of the convex sections having the injection hole formed therein communicating with the cavity, wherein the protrusion length of the convex section is in a range from 3 to 5 mm, and the distance between centers of adjacent convex sections is in a range from 3 to 13 mm.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: March 3, 2015
    Assignee: NGK Insulators, Ltd.
    Inventor: Takeshi Tokunaga
  • Publication number: 20150050451
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having through-holes extending in the longitudinal direction of the body and partitions formed between the through-holes, immersing each of end portions of the body in the longitudinal direction into a sealant slurry heated at a temperature in the range of from 50° C. to 100° C. such that the sealant slurry infiltrates into the through-holes at one of the end portions of the body and seals either end of each of the through-holes of the body, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure is formed.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 19, 2015
    Applicant: lbiden Co., Ltd.
    Inventor: Kazunori YAMAYOSE
  • Publication number: 20150028526
    Abstract: A composition which is suitable for extrusion molding comprises a) a ceramic-forming material, and b) a cellulose derivative that has a median particle length of from 110 to 300 micrometers. Advantageously a cellulose ether is used that has been obtained by providing a moist cellulose derivative having a moisture content of from 35 to 90 percent, based on the total weight of the moist cellulose derivative, and drying-grinding the moist cellulose derivative in a gas-swept impact mill to a median particle length of from 110 to 300 micrometers.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 29, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Roland Bayer, Yvonne M. Goerlach-Doht, Juergen Hermanns
  • Patent number: 8936747
    Abstract: A method for manufacturing a honeycomb structure includes extrusion-molding honeycomb molded bodies. The honeycomb molded bodies are fired to form honeycomb fired bodies. A molding frame optionally having a vent portion with air permeability is provided. The honeycomb fired bodies are fixed in the molding frame. A member having an other vent portion with air permeability is optionally disposed on an inner face side of the molding frame. A gap between the honeycomb fired bodies and a gap between the molding frame and the honeycomb fired bodies are filled with a sealing material paste. The sealing material paste includes inorganic particles and/or inorganic fibers. The sealing material paste is dried to solidify the sealing material paste and to form an adhesive layer and a coat layer. The sealing material paste is in contact with at least a part of the vent portion during the drying.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 20, 2015
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazuya Naruse, Tomohiro Takano, Hideki Sugino
  • Publication number: 20150014903
    Abstract: A die for extrusion molding includes a first face, a second face, a raw material supply section, a molding section, and a treated surface. The second face is provided opposite the first face. The molding section has a second through hole that extends from the second face toward the first face so as to communicate with a first through hole. The treated surface is provided on an inner wall surface of the second through hole to have a structure such that a material for the die is machined to form the material into a die shape and to provide a machining-affected layer on the inner wall surface of the second through hole in the molding section, an oxidized layer is provided by heating the machining-affected layer to oxidize the machining-affected layer so as to convert the machining-affected layer into the oxidized layer, and the oxidized layer is removed.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Makoto ASAI, Shuichi KAWANO
  • Publication number: 20150017343
    Abstract: A die for extrusion molding includes a first face, a second face, a raw material supply section, and a molding section. The second face is provided opposite the first face. The raw material supply section includes a first through hole that extends from the first face toward the second face. The molding section includes a second through hole and a nitride layer. The second through hole extends from the second face toward the first face so as to communicate with the first through hole. The nitride layer is provided on an inner wall surface of the second through hole.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Kiyotaka ANDO, Shuichi KAWANO
  • Publication number: 20150014902
    Abstract: A die for extrusion molding includes a first face, a second face, a raw material supply section, a molding section, and a structure. The molding section has a second through hole that extends from the second face toward the first face so as to communicate with a first through hole. The structure is such that a material for the die is machined to form the material into a predetermined shape and to provide a machining-affected layer on an inner wall surface of the second through hole in the molding section, an oxidized layer is provided by heating the machining-affected layer to oxidize the machining-affected layer so as to convert the machining-affected layer into the oxidized layer, the oxidized layer is removed so that a treated surface is provided, and the treated surface is nitrided by ion implantation to provide a nitride layer.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Kiyotaka ANDO, Shuichi KAWANO, Makoto ASAI
  • Publication number: 20150008625
    Abstract: In a method of producing a honeycomb structured body, a die for extrusion molding is provided to produce at least one honeycomb molded body. The die includes a die body having a raw material inlet side face and a molded body extrusion side face. The raw material inlet side face includes raw material supply holes for supplying a ceramic raw material. The molded body extrusion side face includes molding grooves for molding the ceramic raw material into a shape of the at least one honeycomb molded body. The raw material supply holes and the molding grooves communicate with one another through connecting parts provided between the raw material supply holes and the molding grooves. The connecting parts each include, in a cross section substantially parallel to an extruding direction of the ceramic raw material, a curved part and a straight part.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Masaya SATO, Shigeharu ISHIKAWA, Hiroyoshi GOTO
  • Patent number: 8926891
    Abstract: Manufacture of ceramic honeycomb fired body. Green molded body is placed on a firing base and fired. The firing base and green molded body are each a column containing a ceramic raw material and having a partition wall forming a plurality of flow paths, and patterns of end surfaces of the two partition walls are the same as each other as seen from an extending direction of the flow paths. The green molded body is placed on the firing base displaced in a horizontal direction by a predetermined distance, or rotated around a vertical axis V of the green molded body by a predetermined angle ?, so that only a part of the lower side end surface of the partition wall of the green molded body is in contact with the upper side end surface of the partition wall of the firing base.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Kousuke Uoe
  • Patent number: 8926875
    Abstract: The invention is directed to a method for managing pore size distribution in honeycomb substrates by using two or more pore forming agents in the batch ingredients. In particular, the invention is particularly useful in managing pore size distribution in cordierite and aluminum titanate honeycomb substrates in the face of particle size variations in the pore forming agents and other materials used to make such substrates.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 6, 2015
    Assignee: Corning Incorporated
    Inventors: Mark Allen Spetseris, Balaji Venkatesan Swarnamani, Conor J Walsh, Gregory N Yourkievitz
  • Patent number: 8926886
    Abstract: The present invention relates to the fabrication of multichannel nerve conduits for use in the repair of nerve injury. In particular, the invention relates to collagen multichannel nerve conduits which are suitable for use in repair of peripheral nerves.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 6, 2015
    Assignee: National University of Ireland, Galway
    Inventors: Abhay Pandit, Li Yao, Anthony Windebank
  • Publication number: 20150004354
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and binder such that raw material paste including the titania particles, the alumina particles and the binder is prepared, extruding the raw material paste through a die for forming a honeycomb structure such that a body made of the raw material paste and having the honeycomb structure is formed, supporting the body extruded from the die on a holder while moving the holder along extrusion direction at a moving speed relative to an extruding speed of the raw material based on a target diameter size set for the body such that the diameter of the body held by the holder changes to the target diameter size, and sintering the body having the honeycomb structure with the target diameter size such that a ceramic body having the honeycomb structure with the target diameter size is formed.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 1, 2015
    Applicant: Ibiden Co., Ltd.
    Inventor: Kazunori Yamayose
  • Publication number: 20140363619
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes magnesium in an amount of 500 ppm or less with respect to the titania powder in a weight ratio based on conversion from MgO.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: IBIDEN CO., LTD.
    Inventor: Kazunori YAMAYOSE
  • Publication number: 20140363620
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The titania particles are secondary titania particles each comprising primary titania particles aggregated such that the secondary titania particles have a mean volume particle diameter in the range of from 5 ?m to 20 ?m, and the alumina particles have a mean volume particle diameter in the range of from 2 ?m to 5 ?m.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: IBIDEN CO., LTD.
    Inventor: Kazunori YAMAYOSE
  • Publication number: 20140363618
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes potassium in an amount of from 100 ppm to 600 ppm with respect to the titania powder in a weight ratio based on conversion from K2O.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: IBIDEN CO., LTD.
    Inventor: Kazunori YAMAYOSE
  • Publication number: 20140363617
    Abstract: A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes sodium in an amount of from 200 ppm to 1,000 ppm with respect to the titania powder in a weight ratio based on conversion from Na2O.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: IBIDEN CO., LTD.
    Inventor: Kazunori YAMAYOSE
  • Patent number: 8894916
    Abstract: A method for producing an aluminum-titanate-based ceramic honeycomb structure comprising blending TiO2 source powder and Al2O3 source powder with a TiO2/Al2O3 molar ratio of 45/55 to 55/45, and a sintering aid and/or a molding aid to prepare a moldable material, extrusion-molding the moldable material, and drying and sintering the resultant extrudate, the TiO2 source powder having a particle size distribution (mass-based frequency distribution relative to [log(particle size)]), in which both the maximum frequency in a particle size range of 0.2-4 ?m and the maximum frequency in a particle size range of 10-100 ?m are larger than those in other ranges than the two particle size ranges.
    Type: Grant
    Filed: December 25, 2007
    Date of Patent: November 25, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hirohisa Suwabe, Masaru Yoshida, Tomomasa Kumagai
  • Patent number: 8894895
    Abstract: This disclosure is directed to porous ceramic processing; and in particular to a method using selected pore forming materials to avoid high exotherms during the ceramic firing process, and the green bodies formed using the selected pore forming materials. The selected pore forming materials are homogeneous wax/non-ionic surfactant particles formed by a prilling process in which the wax is melted and the non-ionic surfactant is mixed into the wax prior to prilling. The disclosure is useful in the manufacture porous ceramic honeycomb bodies including ceramic honeycomb filter traps.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 25, 2014
    Assignee: Corning Incorporated
    Inventors: Michele Fredholm, David Henry, Maxime Moreno
  • Patent number: 8894915
    Abstract: A honeycomb structure is made of cordierite and has a plurality of cells separated from each other by porous partition walls and functioning as fluid passages. The honeycomb structure has a thermal expansion coefficient of 0.25×10?6/° C. or less, an average pore diameter is 3 to 8 ?m, and a porosity of 25% or more. The honeycomb structure is made of cordierite excellent in thermal shock resistance even with large pore diameters and high porosity.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: November 25, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Yoshiro Ono