Patents by Inventor Takahiko Ido

Takahiko Ido 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).

  • Publication number: 20150270071
    Abstract: Provided are: a carbon material for an electrical storage device which exhibits, even under low-temperature conditions, sufficiently excellent characteristics from the standpoint of resistivity; and a process for manufacturing the same. This carbon material for an electrical storage device is a carbon material made by pulverizing a graphite material and in which the 10% volume cumulative diameter, 50% volume cumulative diameter and 90% volume cumulative diameter are controlled to 0.45 to 1.7 ?m, 0.8 to 4.0 ?m and 1.55 to 8.9 ?m respectively, and the volume average particle diameter distribution has at least a second peak with the highest frequency of appearance and a first peak located on the side of a particle diameter smaller than that of the second peak. The use of the carbon material in an electrical storage device makes it possible to lower the low-temperature charge transfer resistance of the device.
    Type: Application
    Filed: October 7, 2013
    Publication date: September 24, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Takahiko Ido, Takuya Takagi
  • Patent number: 9023453
    Abstract: A honeycomb structure includes at least one pillar-shaped honeycomb unit and a pair of electrodes. The pillar-shaped honeycomb unit includes an outer peripheral wall and cell walls. The cell walls extend along a longitudinal direction of the honeycomb unit to define cells. The cell walls are composed of a ceramic aggregate having pores. The cell walls contain a substance having an electrical resistivity lower than an electrical resistivity of ceramic forming the ceramic aggregate. The pair of electrodes is arranged at the cell walls and/or the outer peripheral wall.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: May 5, 2015
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Yoshihiro Koga, Takumi Asanuma, Takashi Ito
  • Patent number: 8715579
    Abstract: A honeycomb structure has a substantially circular-pillar-shape. The honeycomb structure includes at least one electrically conductive honeycomb unit, a first electrode, and a second electrode. The at least one electrically conductive honeycomb unit includes walls extending along a longitudinal direction of the at least one electrically conductive honeycomb unit to define a plurality of through holes. The first electrode is provided on an outer circumferential surface of the honeycomb structure. The second electrode is provided in a vicinity of a central axis of the honeycomb structure extending along the longitudinal direction.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 6, 2014
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Yoshihiro Koga, Takumi Asanuma, Keisuke Tange
  • Patent number: 8609031
    Abstract: A honeycomb structure includes at least one honeycomb unit including zeolite, an inorganic binder, and cell walls. The cell walls extend from a first end face to a second end face to define cells along a longitudinal direction of the at least one honeycomb unit. Each of the cell walls includes a center part in the longitudinal direction and a first end part adjacent to the first end face. The first end part has a thickness larger than a thickness of the center part, and/or the first end part has a porosity smaller than a porosity of the center part.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: December 17, 2013
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Patent number: 8506894
    Abstract: A honeycomb structural body includes a plurality of honeycomb units adhered to each other by interposing an adhesive layer. Each of the honeycomb units has a substantially fan shaped cross section or a substantially elliptical fan shaped cross section perpendicular to a longitudinal direction of each of the honeycomb units. First and second electrodes are provided at a part of an outer peripheral surface of each of the honeycomb units that does not face the adhesive layer and are provided at a first area between each of the honeycomb units and the adhesive layer. And/or the first and second electrodes are provided at a second area between the outer peripheral surface of each of the honeycomb units and the adhesive layer and are provided at a third area including a center of the substantially fan shaped cross section or the substantially elliptical fan shaped cross section.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: August 13, 2013
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Yoshihiro Koga, Takumi Asanuma, Keisuke Tange
  • Patent number: 8435455
    Abstract: A honeycomb structural body includes a plurality of honeycomb units, first and second electrodes, and first and second conductive members. The plurality of honeycomb units are adhered to each other by interposing an adhesive layer. Each of the plurality of honeycomb units contains a conductive ceramic material. Each of the plurality of honeycomb units includes cell walls extending along a longitudinal direction of each of the plurality of honeycomb units to define a plurality of through-holes. The first and second electrodes are provided on an outer peripheral surface of each of the plurality of honeycomb units. The first and second conductive members are electrically connected to the first and second electrodes, respectively.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 7, 2013
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Yoshihiro Koga, Takumi Asanuma, Keisuke Tange
  • Patent number: 8409519
    Abstract: An outlet-side catalytic layer 22 includes a noble metal in a concentration that is a noble-metal concentration in an inlet-side catalytic layer 20 or more, and the inlet-side catalytic layer 20 contains an NOx storage material in a content that is greater than that in the outlet-side catalytic layer 22 in the inlet-side catalytic layer 20, a pore catalytic layer 21 and the outlet-side catalytic layer 22. PM are converted on the inlet side mainly, and NOx are converted on the outlet side mainly. Therefore, the lowering of the noble metal's activities is suppressed, and additionally it is possible to convert PM and NOx efficiently.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: April 2, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Ibiden Co., Ltd.
    Inventors: Masao Watanabe, Takahiko Ido
  • Patent number: 8334230
    Abstract: A honeycomb structure includes at least one honeycomb unit which includes walls. The walls have a thickness of from about 0.10 mm to about 0.50 mm and extend along a longitudinal direction of the honeycomb structure to define through-holes. The honeycomb structure has a center area inside a boundary line passing through positions located at substantially a half of a length from a center of the honeycomb structure to a periphery of the honeycomb structure in a cross section perpendicular to the longitudinal direction. The honeycomb structure has a peripheral area outside the boundary line. A thickness of the walls located in the peripheral area is larger than a thickness of the walls located in the center area. A first opening ratio in the center area in the cross section is larger than a second opening ratio in the peripheral area in the cross section.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 18, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Patent number: 8323766
    Abstract: A honeycomb structure includes at least one honeycomb unit having a longitudinal direction. The honeycomb unit includes SOx storage agent, inorganic particles, inorganic binder, and a partition wall extending along the longitudinal direction to define plural through holes. An expression Y??26X+40000 (0<X?approximately 500) is satisfied, wherein “X” represents an amount [g] of SOx stored in the honeycomb structure, and “Y” represents a specific surface area [m2/L] of the honeycomb structure when “X” [g] of SOx is stored in the honeycomb structure.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 4, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Chizuru Kasai
  • Patent number: 8323767
    Abstract: A honeycomb structure includes at least one a honeycomb unit having a longitudinal direction. The at least one honeycomb unit includes a SOx occluding agent, inorganic particles, an inorganic binder, and partition walls extending along the longitudinal direction to define plural through-holes. A relationship 5X+30?Y?5X+45 (about 1.0?X?about 2.5) is satisfied, wherein a content of the SOx occluding agent in the partition walls is expressed by X (mol/L) and a porosity of the at least one honeycomb unit is expressed by Y (%).
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: December 4, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Chizuru Kasai
  • Patent number: 8227368
    Abstract: A honeycomb structure includes honeycomb units. Each of the honeycomb units has a longitudinal direction and includes inorganic particles, an inorganic binder, and cell walls defining cells extending along the longitudinal direction from one end face to another end face. The honeycomb units are bonded together via an adhesive such that each longitudinal direction is substantially in parallel. An amount of ammonia desorbed per unit mass of the honeycomb units is about 5 to about 100 times greater than an amount of ammonia desorbed per unit mass of the adhesive. The amount of ammonia desorbed per unit mass of the honeycomb units and the amount of ammonia desorbed per unit mass of the adhesive are measured by an NH3-TPD method.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: July 24, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Takahiko Ido, Ken Yoshimura
  • Patent number: 8221867
    Abstract: A honeycomb structure includes a honeycomb unit which has zeolite, inorganic binder, and cell walls extending from one end to another end along a longitudinal direction of the honeycomb unit to define cells. An amount of zeolite contained per apparent unit volume of the honeycomb unit is approximately 230 g/L or more. Mathematical formulae [1] and [2] are satisfied when a thickness of the cell walls is defined as X mm and an average pore diameter of a surface of the cell walls observed by a microscope is defined as Y ?m: X+0.07?Y?X+0.27 ??[1] approximately 0.15?X?approximately 0.35 ??[2].
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: July 17, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Patent number: 8202601
    Abstract: A honeycomb structure includes at least one honeycomb unit having opening ratio (P) of at least approximately 50% and at most approximately 65% and a cell density ? of at least approximately 31/cm2 and at most approximately 93/cm2. The honeycomb unit includes an inorganic binder and at least approximately 230 g/L of zeolite in which L represents an apparent volume. The honeycomb unit further includes and a plurality of cell walls extending from a first end to a second end of the honeycomb unit along a longitudinal direction of the honeycomb unit to define cells. The cell walls have a surface roughness Ra of at least approximately 1 ?m and at most approximately 30 ?m.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: June 19, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Patent number: 8197767
    Abstract: A disclosed honeycomb structure includes at least one honeycomb unit having parallel through holes separated by partition walls and extending in the longitudinal direction, the honeycomb unit including a first SOx-occluding agent, first inorganic particles, and an inorganic binder; and coating layers formed on the partition walls and including a second SOx-occluding agent and second inorganic particles. In the honeycomb structure, the basicity of the honeycomb unit is higher than that of the coating layers.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: June 12, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Takahiko Ido, Chizuru Kasai
  • Patent number: 8187691
    Abstract: A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit has a longitudinal direction and includes zeolite and an inorganic binder. A content of the zeolite per apparent unit volume of the at least one honeycomb unit is about 230 g/L or greater. The at least one honeycomb includes plural cell walls extending from one end face to another end face along the longitudinal direction to define plural cell walls. A porosity of substantially all pores in the cell walls is about 40% or less. A porosity of pores having diameters in a range of about 0.005 ?m through about 0.02 ?m in the cell walls is about 5% or greater. A porosity of pores having diameters in a range of about 0.05 ?m through about 0.2 ?m in the cell walls is about 17.5% or greater.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 29, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Patent number: 8128881
    Abstract: A storage catalyst 3 is constituted of a supporter substrate 30, which is formed of at least one member being selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2 and zeolite, and whose specific surface area is 30 m2/g or more, and a coating layer 31, which includes a supporting powder including at least one member being selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2 and zeolite, a storage material for storing NOx and SOx, the storage material being supported on the supporting powder, and a noble metal being supported on the supporting powder. Since the supporter substrate 30 has a large specific surface area, a supporting amount of the storage material for storing NOx and SOx augments remarkably. Therefore, an SOx storage amount of the storage catalyst, which is put in place on an upstream side of an NOx storage-and-reduction catalyst, augments, and thereby an NOx storage amount in low-temperature regions augments.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 6, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Ibiden Co., Ltd.
    Inventors: Yoshitsugu Ogura, Takayuki Endo, Takahiko Ido
  • Patent number: 8110275
    Abstract: Mixed particles including noble metal particles of a noble metal, first particles of one or more metal oxides, and second particles of a metal oxide. The first particles of one or more metal oxides are selected from Al2O3, SiO2, ZrO2 and TiO2. The second particles of a metal oxide have a larger adsorptive interaction with the noble metal of the noble metal particles as compared with the metal oxide of the first particles. The noble metal particles are carried by the second particles in a larger proportion than by the first particles.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 7, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Takahiko Ido, Yoshihiro Koga, Yuji Akema
  • Patent number: 8105544
    Abstract: An exhaust gas treating apparatus includes an upstream honeycomb structure and a downstream honeycomb structure each provided along an exhaust gas flowing direction of the exhaust gas treating apparatus. Each of the plurality of honeycomb structures includes at least one honeycomb unit includes zeolite, an inorganic binder, and walls. A first ratio of weight of zeolite ion-exchanged with at least one of Cu, Mn, Ag, and V in the downstream honeycomb structure is greater than a first ratio of weight of zeolite ion-exchanged with at least one of Cu, Mn, Ag, and V in the upstream honeycomb structure. A second ratio of weight of zeolite ion-exchanged with at least one of Fe, Ti, and Co in the upstream honeycomb structure is greater than a second ratio of weight of the zeolite ion-exchanged with at least one of Fe, Ti, and Co in the downstream honeycomb structure.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 31, 2012
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido
  • Publication number: 20110286890
    Abstract: An electrically heated exhaust gas control apparatus includes: a hollow base member that has electroconductivity; a first insulation member that is disposed within the base member and that divides a vertically upper space and a vertically lower space from each other; a honeycomb catalyst formed in each of the vertically upper space and the vertically lower space; a pair of upper electrodes that heat the honeycomb catalyst in the vertically upper space and a pair of lower electrodes that heat the honeycomb catalyst in the vertically lower space; and a control portion that is able to stop electrifying the lower electrodes while continuing to electrify the upper electrodes.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 24, 2011
    Inventors: Masaru KAKINOHANA, Takahiko Ido
  • Patent number: 8039088
    Abstract: A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit has a longitudinal direction and includes plural cell walls extending from one end face to another end face along the longitudinal direction to define plural cells. The at least one honeycomb unit includes inorganic particles, an inorganic binder, and inorganic fibers. A degree of orientation of the inorganic fibers in an a-axis direction parallel to the longitudinal direction is about 0.5 or less.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: October 18, 2011
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Takahiko Ido, Ikuhito Teshima