Patents by Inventor Hiromi Sano

Hiromi Sano 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: 10374523
    Abstract: A power conversion device includes a case including an upper case and a lower case; an inverter that is accommodated in a first partial case and is fixed to the first partial case, the first partial case being one of the upper case and the lower case; and a capacitor that is connected to the inverter by a positive electrode bus bar and a negative electrode bus bar, the capacitor being disposed in an internal space of a second partial case that is another of the upper case and the lower case. The first partial case includes a fastening portion that extends from an internal space of the first partial case to the internal space of the second partial case. In the internal space of the second partial case, the capacitor is fastened to the fastening portion.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: August 6, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Shinichi Miura, Hiroki Umeda, Kenshi Yamanaka, Yutaka Morimoto, Kazuki Hayashi, Hiromi Yamasaki, Hitoshi Imura, Tomohisa Sano, Daisuke Harada, Hideaki Tachibana
  • Publication number: 20190173394
    Abstract: A power conversion device includes a case including an upper case and a lower case; an inverter that is accommodated in a first partial case and is fixed to the first partial case, the first partial case being one of the upper case and the lower case; and a capacitor that is connected to the inverter by a positive electrode bus bar and a negative electrode bus bar, the capacitor being disposed in an internal space of a second partial case that is another of the upper case and the lower case. The first partial case includes a fastening portion that extends from an internal space of the first partial case to the internal space of the second partial case. In the internal space of the second partial case, the capacitor is fastened to the fastening portion.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 6, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Shinichi MIURA, Hiroki UMEDA, Kenshi YAMANAKA, Yutaka MORIMOTO, Kazuki HAYASHI, Hiromi YAMASAKI, Hitoshi IMURA, Tomohisa SANO, Daisuke HARADA, Hideaki TACHIBANA
  • Patent number: 7824531
    Abstract: A multilayered air-fuel ratio sensor consists of a plurality of substrate layers. At least one heterogeneous boundary layer is interposed between the plurality of substrate layers. The heterogeneous boundary layer has a thickness in a range of 10 to 100 ?m. The heterogeneous boundary layer absorbs thermal shocks or any other stresses acting on the substrate layers and stops the growth of cracks.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: November 2, 2010
    Assignee: Denso Corporation
    Inventors: Tomio Sugiyama, Hiromi Sano, Masahiro Shibata, Midori Shibata, legal representative, Natsumi Shibata, legal representative, Raina Shibata, legal representative, Syuichi Nakano
  • Patent number: 7553442
    Abstract: An exhaust gas purifying filter is made of a ceramic material in a honeycomb structure having introduction passages for introducing exhaust gas that includes particulate matter emitted from an internal combustion engine, porous walls that collect the particulate matter and exhaust passages for exhausting the exhaust gas after the particulate matter has been removed therefrom, with the porous walls supporting a catalyst for oxidizing and removing the particulate matter. The porosity of the porous wall is in a range from 55 to 80%, the mean pore size is in-a range from 30 to 50 ?m, and the total volume X of the pores included in the exhaust gas purifying filter and the volume Y of the pores that are not smaller than 100 ?m satisfy the relation of inequality Y/X?0.05.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: June 30, 2009
    Assignee: Denso Corporation
    Inventors: Mamoru Nishimura, Mikio Ishihara, Hirofumi Yamashita, Hiromi Sano
  • Patent number: 7358210
    Abstract: A ceramic body that can support a required amount of catalyst component, without lowering the characteristics such as strength, manufactured without forming a coating layer and providing a high performance ceramic catalyst body that is excellent in practical utility and durability. This ceramic body is made by substituting at least one of the constituent elements of cordierite that constitutes the substrate ceramic, for example Al, with W that is the element having an empty orbit in d or f orbit, has high bonding strength and is less susceptible to deterioration since the catalyst component Pt is supported by means of chemical bonding.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: April 15, 2008
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Masakazu Tanaka, Tomomi Hase, Takashi Kondo, Tosiharu Kondo, Hiromi Sano, Jun Hasegawa, Miho Ito, Tomohiko Nakanishi, Kazuhiko Koike, Takumi Suzawa
  • Publication number: 20070163117
    Abstract: An exhaust gas purifying filter is made of a ceramic material in a honeycomb structure having introduction passages for introducing exhaust gas that includes particulate matter emitted from an internal combustion engine, porous walls that collect the particulate matter and exhaust passages for exhausting the exhaust gas after the particulate matter has been removed therefrom, with the porous walls supporting a catalyst for oxidizing and removing the particulate matter. The porosity of the porous wall is in a range from 55 to 80%, the mean pore size is in-a range from 30 to 50 ?m, and the total volume X of the pores included in the exhaust gas purifying filter and the volume Y of the pores that are not smaller than 100 ?m satisfy the relation of inequality Y/X?0.05.
    Type: Application
    Filed: March 27, 2007
    Publication date: July 19, 2007
    Applicant: DENSO CORPORATION
    Inventors: Mamoru NISHIMURA, Mikio ISHIHARA, Hirofumi YAMASHITA, Hiromi SANO
  • Patent number: 7048894
    Abstract: A catalyst-loaded ceramic filter made of a ceramic material capable of directly supporting a catalyst component thereon is capable of providing early activation of the catalyst with a low coefficient of thermal expansion and light weight, without compromising the high porosity of the filter substrate. A catalyst-loaded ceramic filter is made of a ceramic material of which one or more kinds of element among its constituent elements is substituted with an element other than the constituent elements, for example a ceramic material with a part of Si or other elements included in cordierite is substituted with W or Co, as a filter substrate of honeycomb structure having a number of cells separated by porous walls, and supporting a catalyst such as a noble metal directly on the W.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: May 23, 2006
    Assignee: Denso Corporation
    Inventors: Masakazu Tanaka, Tosiharu Kondo, Hiromi Sano, Mamoru Nishimura
  • Patent number: 7045047
    Abstract: A gas sensor element which may be employed in measuring the concentration of gas such O2, NOx, or CO. The gas sensor element consists of an electrochemical cell made up of a solid electrolyte body formed by a partially stabilized zirconia and a pair of electrodes disposed on the solid electrolyte body. The electrochemical cell is subjected to an aging treatment in which the dc current is applied to the electrodes at a given voltage to enhance the activation of the electrochemical cell.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: May 16, 2006
    Assignee: Denso Corporation
    Inventors: Makoto Nakae, Susumu Naito, Namitsugu Fujii, Hiromi Sano, Tomio Sugiyama, Kazuya Nakagawa
  • Patent number: 6951601
    Abstract: The oxygen concentration detector of the present invention includes a sensor element having a solid electrolyte and having an external electrode and an internal electrode provided on the external surface and the internal surface, respectively, and a heater provided adjacent to the internal surface of the sensor element, in which a high-emissivity layer consisting of a material having a high emissivity is provided on the internal surface of the sensor element and/or the surface of the heater.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: October 4, 2005
    Assignee: Denso Corporation
    Inventors: Akio Tanaka, Naoto Miwa, Toshitaka Saito, Hiromi Sano, Kazunori Suzuki, Masaya Fujimoto
  • Publication number: 20030116448
    Abstract: A gas sensor element which may be employed in measuring the concentration of gas such O2, NOx, or CO. The gas sensor element consists of an electrochemical cell made up of a solid electrolyte body formed by a partially stabilized zirconia and a pair of electrodes disposed on the solid electrolyte body. The electrochemical cell is subjected to an aging treatment in which the dc current is applied to the electrodes at a given voltage to enhance the activation of the electrochemical cell.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 26, 2003
    Inventors: Makoto Nakae, Susumu Naito, Namitsugu Fujii, Hiromi Sano, Tomio Sugiyama, Kazuya Nakagawa
  • Publication number: 20030061862
    Abstract: The invention provides a gas concentration detection element that can prevent the drop of catalytic activity due to thermal aggregation of catalyst particles under high temperature conditions, can maintain a stable output for a long time and can be easily produced at a low production cost. A reference electrode 12 is formed on an inner surface of a cup-like oxygen ion conductive solid electrolyte 11 and a detection electrode 13 is formed on its outer surface to constitute a gas concentration detection element 1 for detecting a specific gas component in a measured gas. A catalyst layer 15 is constituted by directly supporting a catalyst component on ceramic support particles, such as particles of element-substituted cordierite, through a chemical bond so that both bonding strength and durability can be improved.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 3, 2003
    Inventors: Tosiharu Kondo, Minoru Ota, Hiromi Sano, Miho Ito, Tomohiko Nakanishi
  • Publication number: 20030045422
    Abstract: The present invention has an object to obtain a ceramic body that can support a required amount of catalyst component, without lowering the characteristics such as strength, being manufactured without forming a coating layer and providing a high performance ceramic catalyst body that is excellent in practical utility and durability.
    Type: Application
    Filed: March 22, 2002
    Publication date: March 6, 2003
    Inventors: Masakazu Tanaka, Tomomi Hase, Takashi Kondo, Tosiharu Kondo, Hiromi Sano, Jun Hasegawa, Miho Ito, Tomohiko Nakanishi, Kazuhiko Koike, Takumi Suzawa
  • Publication number: 20030039598
    Abstract: An exhaust gas purifying filter that does not break and melt and has high capacity to remove particulate matter, and a method of manufacturing the same, are provided.
    Type: Application
    Filed: March 22, 2002
    Publication date: February 27, 2003
    Applicant: DENSO CORPORATION
    Inventors: Mamoru Nishimura, Mikio Ishihara, Hirofumi Yamashita, Hiromi Sano
  • Publication number: 20030007905
    Abstract: The present invention provides a catalyst-loaded ceramic filter that is made of a ceramic material capable of directly supporting a catalyst component thereon, and is capable of providing early activation of the catalyst with a low coefficient of thermal expansion and light weight, without compromising the high porosity of the filter substrate.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 9, 2003
    Inventors: Masakazu Tanaka, Tosiharu Kondo, Hiromi Sano, Mamoru Nishimura
  • Patent number: 6409899
    Abstract: A sensor element has a solid electrolyte body holding a reference gas side electrode and a measurement gas side electrode on surfaces thereof. The measurement gas side electrode is covered with a porous protective layer including a component as a lead getter, which reacts with lead contained in measurement gas. Accordingly, lead is removed from measurement gas by the protective layer not to be attached to the measurement gas side electrode. As a result, the sensor element can be used in measurement gas containing lead, without deteriorating responsibility and output thereof.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: June 25, 2002
    Assignee: Denso Corporation
    Inventors: Motoaki Satou, Yasumichi Hotta, Namitsugu Fujii, Hiromi Sano
  • Publication number: 20020038761
    Abstract: A composite gas sensor comprises a pump cell, a NOx sensor cell and an oxygen sensor cell. The NOx sensor cell is connected to a first ammeter and a constant power source to measure the NOx concentration of a sample gas. The pump cell is connected to a second ammeter and a variable power source to measure an air-fuel ratio of the sample gas. The oxygen sensor cell is connected to a voltmeter. A controller adjusts the variable power source to produce a constant value from the voltmeter.
    Type: Application
    Filed: December 10, 2001
    Publication date: April 4, 2002
    Inventors: Tomio Sugiyama, Naoto Miwa, Masahiro Shibata, Hiromi Sano, Akio Tanaka, Midori Shibata
  • Patent number: 6354134
    Abstract: A solid electrolytic body has an inside space serving as a reference gas chamber. A sensing electrode and a reference electrode are formed on the surface of the solid electrolytic body. A heater is disposed in the reference gas chamber. A contact portion comprises a region where the heater is brought into contact with the inner surface of the solid electrolytic body and an opposing region on the outer surface of the solid electrolytic body. The sensing electrode includes at least part of the contact portion. A gas receiving surface region, exposed to the measuring gas, extends from an element tip to a position spaced by a distance L away from the element tip. At least part of the contact portion is located in a region extending from the element tip to a position spaced by a distance 0.4L away from the element tip. The sensing electrode is entirely located in a region extending from the element tip to a position spaced by a distance 0.8L away from the element tip.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 12, 2002
    Assignee: Denso Corporation
    Inventors: Tooru Katafuchi, Kiyomi Kobayashi, Namitsugu Fujii, Hiromi Sano
  • Patent number: 6344118
    Abstract: An improved structure of an oxygen sensing element installed in an oxygen sensor designed to measure an oxygen content in gases is provided. The structure includes a cup-shaped solid electrolyte body, an inner electrode, and an outer electrode. The solid electrolyte body has a portion exposed to the gases which has a given length. The inner electrode is formed on an inner wall of the solid electrolyte body and exposed to air. The outer electrode is formed on an outer wall of the solid electrolyte body and exposed to the gases through a protective layer. The oxygen content in the gases is measured based on output signals from the inner and outer electrodes. The outer electrode occupies an area on the outer wall of the solid electrolyte body within a range of 80% of the given length of the gas-exposed portion of the solid electrolyte body and has a thickness ranging from 1.2 to 3.0 &mgr;m.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: February 5, 2002
    Assignee: Denso Corporation
    Inventors: Kiyomi Kobayashi, Namitsugu Fujii, Yasumichi Hotta, Hiromi Sano
  • Patent number: 6332965
    Abstract: A composite gas sensor comprises a pump cell, a NOx sensor cell and an oxygen sensor cell. The NOx sensor cell is connected to a first ammeter and a constant power source to measure the NOx concentration of a sample gas. The pump cell is connected to a second ammeter and a variable power source to measure an air-fuel ratio of the sample gas. The oxygen sensor cell is connected to a voltmeter. A controller adjusts the variable power source to produce a constant value from the voltmeter.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: December 25, 2001
    Assignee: Denso Corporation
    Inventors: Tomio Sugiyama, Naoto Miwa, Masahiro Shibata, Hiromi Sano, Akio Tanaka
  • Publication number: 20010047937
    Abstract: A multilayered air-fuel ratio sensor consists of a plurality of substrate layers. At least one heterogeneous boundary layer is interposed between the plurality of substrate layers. The heterogeneous boundary layer has a thickness in a range of 10 to 100 &mgr;m. The heterogeneous boundary layer absorbs thermal shocks or any other stresses acting on the substrate layers and stops the growth of cracks.
    Type: Application
    Filed: June 18, 1998
    Publication date: December 6, 2001
    Inventors: TOMIO SUGIYAMA, HIROMI SANO, MASAHIRO SHIBATA, SYUICHI NAKANO