Patents by Inventor Shuji Ueda

Shuji Ueda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11142485
    Abstract: A circumferential coating material to be applied to a circumferential surface of a honeycomb structure made of ceramics formed by extrusion, the circumferential coating material including a ceramic raw material that forms a circumferential coating layer, wherein the ceramic raw material contains: a ceramic mixture of first ceramic particles having particulate shapes, and second ceramic particles having particulate shapes and an average particle diameter different from an average particle diameter of the first ceramic particles; and a fiber material having an elongated strip-like shape, wherein the ceramic mixture has particle size distribution including at least two local maximum values, and the fiber material has an average fiber length ranging from 30 to 100 ?m in a longitudinal direction.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 12, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Shingo Tokuda, Shuji Ueda
  • Publication number: 20210299646
    Abstract: A pillar-shaped honeycomb structure including an outer peripheral side wall, a plurality of first cells provided on an inner peripheral side of the outer peripheral side wall, the first cells extending from a first end surface to a second end surface, each opening on the first end surface and having a sealing portion with an average void ratio of 4% or less on the second end surface, and a plurality of second cells provided on the inner peripheral side of the outer peripheral side wall, the second cells extending from the first end surface to the second end surface, each having a sealing portion with an average void ratio of 4% or less on the first end surface and opening on the second end surface, the first cells and the second cells being alternately arranged adjacent to each other with a partition wall interposed therebetween.
    Type: Application
    Filed: February 17, 2021
    Publication date: September 30, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Shuji UEDA, Shungo NAGAI, Hiroaki HAYASHI
  • Publication number: 20210299604
    Abstract: A ceramic filter having a pillar-shaped honeycomb structure, wherein when observing a plurality of pores from a surface of partition walls with a laser microscope and plotting an equivalent circle diameter (?m) of each pore on an X-axis and a pore depth (?m) of each pore on a Y-axis on a two-dimensional coordinate system, a slope of a regression line (y/x) obtained by a least squares method in a range of 20?x?40 is 0 to 0.20, an average value of the pore depth of the plurality of pores is 2.5 ?m to 5.0 ?m, and a number density of the plurality of pores is 600/mm2 to 2450/mm2.
    Type: Application
    Filed: February 5, 2021
    Publication date: September 30, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takayuki KANETAKE, Shingo TOKUDA, Shuji UEDA
  • Publication number: 20210268688
    Abstract: A manufacturing method of a honeycomb filter includes a kneaded material preparation process, a forming process, and a firing process, wherein the cordierite forming raw material contains porous silica as an inorganic pore former, in a cumulative particle size distribution of the cordierite forming raw material, particle diameters (?m) of 10% by volume, 50% by volume, and 90% by volume of the total volume from a small diameter side, are denoted by D(a) 10, D(a) 50 and D(a) 90, respectively, and a particle diameter (?m) of 50% by volume of the total volume from the small diameter side is denoted by D(b) 50 in a cumulative particle size distribution of the organic pore former, and the cordierite forming raw material and the organic pore former satisfy given expressions.
    Type: Application
    Filed: January 13, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Koichi SENDO, Yu TORII, Shuji UEDA, Shungo NAGAI
  • Publication number: 20210270161
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion provided at an open end on a first end face side or a second end face side of each of the cells, wherein the partition wall is composed of a material containing cordierite as a main component thereof, a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle diameters exceeding 3.0 ?m is 1400 per mm2 or more, and, in a pore diameter distribution which indicates a cumulative pore volume of the partition wall, with a log pore diameter on a horizonal axis and a log differential pore volume (cm3/g) on a vertical axis, a half-value width of a first peak that includes a maximum value of the log differential pore volume is 0.30 or less.
    Type: Application
    Filed: January 13, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Koichi SENDO, Yu TORII, Shuji UEDA, Shungo NAGAI
  • Publication number: 20210268478
    Abstract: A manufacturing method of a honeycomb filter includes a kneaded material preparation process, a forming process and a firing process, wherein the cordierite forming raw material contains at least one of porous silica and fused silica, particle diameters (?m) of 10% by volume, 50% by volume and 90% by volume, from a small diameter side, are denoted by D(a) 10, D(a) 50 and D(a) 90 in a cumulative particle size distribution of the cordierite forming raw material, and a particle diameter (?m) of 50% by volume from a small diameter side is denoted by D(b) 50 in a cumulative particle size distribution of the organic pore former, D(b) 50 is 40 ?m or less, and a cordierite forming raw material and an organic pore former satisfy given expressions.
    Type: Application
    Filed: January 14, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Koichi SENDO, Yu TORII, Shungo NAGAI, Shuji UEDA
  • Publication number: 20210270162
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells which serve as fluid through channels extending from a first end face to a second end face; and a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein the partition wall is composed of a material containing cordierite as a main component thereof, and a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle diameters exceeding 3.0 ?m is 600 per mm2 or more.
    Type: Application
    Filed: January 13, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Koichi SENDO, Yu TORII, Shuji UEDA, Shungo NAGAI
  • Publication number: 20210268422
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed, surrounding a plurality of cells which serve as fluid through channels extending from a first end face to a second end face; and a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein the partition wall is composed of a material containing cordierite as a main component thereof, an average pore diameter of the partition wall is 20 to 30 ?m, an average equivalent circle diameter of pores existing at a surface of the partition wall and having equivalent circle diameters exceeding 3.0 ?m is 18 to 30 ?m, and a number per unit area of pores existing at a surface of the partition wall and having equivalent circle diameters exceeding 3.0 ?m is 400 per mm2 or more.
    Type: Application
    Filed: January 14, 2021
    Publication date: September 2, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Koichi SENDO, Yu TORII, Shuji UEDA, Shungo NAGAI
  • Patent number: 10632701
    Abstract: A manufacturing method of a honeycomb structure includes a forming step of preparing a forming raw material containing a cordierite forming material and an inorganic binder, and kneading and forming the prepared forming raw material to have a honeycomb shape; and a firing step of firing the prepared formed body. In the forming step, as the inorganic binder, smectite is used in which at least parts of interlayer metal cations are ion-exchanged with non-metal cations. In the smectite, a total amount of sodium to be contained in the smectite is 1.6 mass % or less in terms of oxides to 100 mass % of the smectite. A content ratio of the smectite in the forming raw material is 0.5 parts by mass or more and 4.0 parts by mass or less to 100 parts by mass of the cordierite forming material.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 28, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Takayoshi Shibayama, Hideki Oka, Shuji Ueda, Hiroyuki Suenobu
  • Publication number: 20200039891
    Abstract: A method for producing a honeycomb structure, the method comprising the steps of: kneading a forming raw material containing a cordierite forming material and then forming it to produce a honeycomb formed body; and firing the honeycomb formed body to provide a honeycomb structure. In the producing method, from 0.1 to 6.0 parts by mass of a magnesium silicate mineral having a 2:1 ribbon type structure per 100 parts by mass of the cordierite forming material is added to the forming raw material.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Applicant: NGK INSULATORS, LTD.
    Inventors: Shingo TOKUDA, Shuji Ueda, Takayuki Kanetake
  • Patent number: 10300475
    Abstract: A circumferential coating material which is coated on a circumferential surface of a honeycomb structure monolithically formed by extrusion, to form a circumferential coating layer, the circumferential coating material containing fused silica in a range of 20 to 75 mass %, containing a color developing agent in a range of 5 to 50 mass %, containing colloidal silica in a range of 5 to 30 mass %, and further containing a silicon based water repellent agent in a range of 1 to 10 mass % to a total mass of the fused silica, the color developing agent, and the colloidal silica.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 28, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Shuji Ueda, Shungo Nagai, Takayoshi Shibayama, Yoshihiro Sato, Makoto Murai, Kojiro Hayashi
  • Patent number: 10252944
    Abstract: A honeycomb structure includes a cordierite component, and has partition walls defining a plurality of cells which extend from one end face to the other end face and form through channels for a fluid, a thermal expansion coefficient in a central axis direction is 1.2 ppm/K or more and 3.5 ppm/K or less in a temperature change of 40° C. to 800° C., and a thermal expansion coefficient in a cross-sectional direction orthogonal to the central axis direction is 0.8 ppm/K or more and 2.5 ppm/K or less in the temperature range of 40° C. to 800° C.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: April 9, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Mitsuharu Ono, Shuji Ueda
  • Patent number: 10232361
    Abstract: A honeycomb structural body 20 comprises a porous partition portion 22 which forms a plurality of cells each functioning as a flow path of a fluid, and in the partition portion 22, the average pore diameter is 10 to 20 ?m, and a wet area rate R (=S/V) which is the rate of a wet area S of pores to a volume V of the partition portion 22 is 0.000239 ?m?1 or more.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 19, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Shogo Hirose, Hirotaka Yamamoto, Shiori Nakao, Shuji Ueda, Mitsuharu Ono, Satoshi Sakashita, Hiroyuki Nagaoka
  • Publication number: 20180319114
    Abstract: A manufacturing method of a honeycomb structure includes a forming step of preparing a forming raw material containing a cordierite forming material and an inorganic binder, and kneading and forming the prepared forming raw material to have a honeycomb shape; and a firing step of firing the prepared formed body. In the forming step, as the inorganic binder, smectite is used in which at least parts of interlayer metal cations are ion-exchanged with non-metal cations. In the smectite, a total amount of sodium to be contained in the smectite is 1.6 mass % or less in terms of oxides to 100 mass % of the smectite. A content ratio of the smectite in the forming raw material is 0.5 parts by mass or more and 4.0 parts by mass or less to 100 parts by mass of the cordierite forming material.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 8, 2018
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takayoshi SHIBAYAMA, Hideki OKA, Shuji UEDA, Hiroyuki SUENOBU
  • Publication number: 20180273432
    Abstract: A circumferential coating material to be applied to a circumferential surface of a honeycomb structure made of ceramics formed by extrusion, the circumferential coating material including a ceramic raw material that forms a circumferential coating layer, wherein the ceramic raw material contains: a ceramic mixture of first ceramic particles having particulate shapes, and second ceramic particles having particulate shapes and an average particle diameter different from an average particle diameter of the first ceramic particles; and a fiber material having an elongated strip-like shape, wherein the ceramic mixture has particle size distribution including at least two local maximum values, and the fiber material has an average fiber length ranging from 30 to 100 ?m in a longitudinal direction.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 27, 2018
    Applicant: NGK Insulators, Ltd.
    Inventors: Shingo Tokuda, Shuji Ueda
  • Publication number: 20180178206
    Abstract: A circumferential coating material which is coated on a circumferential surface of a honeycomb structure monolithically formed by extrusion, to form a circumferential coating layer, the circumferential coating material containing fused silica in a range of 20 to 75 mass %, containing a color developing agent in a range of 5 to 50 mass %, containing colloidal silica in a range of 5 to 30 mass %, and further containing a silicon based water repellent agent in a range of 1 to 10 mass % to a total mass of the fused silica, the color developing agent, and the colloidal silica.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 28, 2018
    Applicant: NGK INSULATORS, LTD.
    Inventors: Shuji Ueda, Shungo Nagai, Takayoshi Shibayama, Yoshihiro Sato, Makoto Murai, Kojiro Hayashi
  • Publication number: 20160288113
    Abstract: A honeycomb structural body 20 comprises a porous partition portion 22 which forms a plurality of cells each functioning as a flow path of a fluid, and in the partition portion 22, the average pore diameter is 10 to 20 ?m, and a wet area rate R (=S/V) which is the rate of a wet area S of pores to a volume V of the partition portion 22 is 0.000239 ?m?1 or more.
    Type: Application
    Filed: March 25, 2016
    Publication date: October 6, 2016
    Inventors: Shogo HIROSE, Hirotaka YAMAMOTO, Shiori NAKAO, Shuji UEDA, Mitsuharu ONO, Satoshi SAKASHITA, Hiroyuki NAGAOKA
  • Publication number: 20160280605
    Abstract: A honeycomb structure includes a cordierite component, and has partition walls defining a plurality of cells which extend from one end face to the other end face and form through channels for a fluid, a thermal expansion coefficient in a central axis direction is 12 ppm/K or more and 3.5 ppm/K or less in a temperature change of 40° C. to 800° C., and a thermal expansion coefficient in a cross-sectional direction orthogonal to the central axis direction is 0.8 ppm/K or more and 2.5 ppm/K or less in the temperature range of 40° C. to 800° C.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 29, 2016
    Inventors: Mitsuharu ONO, Shuji UEDA
  • Patent number: 9435421
    Abstract: A baffle plate provided with a body section arranged to separate between a differential gear and an oil sump section, a first drain section for leading oil scooped up by the differential gear in a machine room to a control room, a notch section for defining a communicating passage between the inside surface of the casing and itself for letting oil flow from the control room to the machine room, a through-hole formed on a peripheral side of an opening of the body section and a second drain section for guiding oil scooped up by the differential gear and having passed via the through-hole to a shaft support of the differential gear.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: September 6, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shota Mafune, Shuji Ueda
  • Patent number: 9333486
    Abstract: There is disclosed a honeycomb structure. A honeycomb structure includes a pillar-shaped honeycomb structure body having partition walls defining a plurality of cells which become through channels for a fluid and extend from a first end face to a second end face, the partition walls are constituted of a porous body having aggregates and a bonding material to bond the aggregates to one another in a state where pores are formed among the aggregates, the aggregates include molten silica particles, the bonding material includes glass, a content ratio of SiO2 in the porous body is 70 mass % or more, and a thermal expansion coefficient of the porous body at 40 to 800° C. is from 1.5 to 6.0×10?6/° C.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 10, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Mitsuharu Ono, Fumiharu Sato, Shuji Ueda, Hiroyuki Suenobu