Patents by Inventor Shuhei NAGAOKA

Shuhei NAGAOKA 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: 20210094019
    Abstract: A composition comprising platinum (Pt) nanoparticles and an inorganic oxide, wherein the Pt nanoparticles have no more than 100 Pt atoms, wherein the Pt nanoparticles have a mean particle size of 1 nm to 10 nm with a standard deviation (SD) no more than 1 nm.
    Type: Application
    Filed: March 29, 2019
    Publication date: April 1, 2021
    Inventors: Shuhei NAGAOKA, Yuichi FUJIMORI, Tomoharu HAYAMA, Yuichi NEGISHI, Wataru KURASHIGE, Atsuya HARASAWA, Nobuyuki SHIMIZU
  • Patent number: 10875010
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component and a first inorganic oxide, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have no more than 100 PGM atoms, and wherein the PGM nanoparticles have a mean particle size of 1 nm to 10 nm with a standard deviation (SD) no more than 1 nm.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: December 29, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Shuhei Nagaoka
  • Publication number: 20200398282
    Abstract: A temperature control device has a temperature control target for holding, in the inside thereof, a DNA-containing solution, the temperature of which is to be adjusted with a single temperature control unit, a first heat transfer unit which is in contact with the temperature control unit and transfers heat between the temperature control unit and a temperature control target. A second heat transfer unit is in contact with the first heat transfer unit and the temperature control target and transfers heat between the first heat transfer unit and the temperature control target or is in contact with the temperature control unit and the temperature control target and transfers heat between the temperature control unit and the temperature control target, and in that the temperature control target is sandwiched by the first heat transfer unit and the second heat transfer unit, and the second heat transfer unit is pressed.
    Type: Application
    Filed: January 15, 2019
    Publication date: December 24, 2020
    Inventors: Wataru SATO, Yoshihiro NAGAOKA, Shuhei YAMAMOTO, Taro NAKAZAWA
  • Publication number: 20200353445
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component and a first inorganic oxide, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have no more than 100 PGM atoms, and wherein the PGM nanoparticles have a mean particle size of 1 nm to 10 nm with a standard deviation (SD) no more than 1 nm.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 12, 2020
    Inventor: Shuhei Nagaoka
  • Publication number: 20200306730
    Abstract: Compositions, articles, and methods related to a three-way-catalyst composition comprising a perovskite-type compound of formula (I): LazB1-qB?qO3±? or formula (II): [BOx]y:[LazBO3±?]1-y and a non-redox active component; wherein B or B? is Fe, Mn, Co, Ni, Cu, Ti, or Zr; q is in a range from about 0 to about 0.5; x is from about 1 to about 2.5; y is from about 1 to about 30 wt %; z is about 0.6 to about 1.1; ? is in a range from about 0 to about 0.6.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Shuhei Nagaoka, Kerry Simmance, Andrea Eva Pascui, Emily Price
  • Patent number: 10753248
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprises: a substrate; and a catalytic region on the substrate; wherein the catalytic region comprises a platinum group metal (PGM) component, an oxide, and a rare earth metal component; wherein the oxide is an inorganic oxide, an oxygen storage component (OSC) material, or a mixture thereof; wherein the rare earth metal component concentration by element on the surface of the oxide per unit specific surface area of the oxide is 1 ?mol/m2 to 20 ?mol/m2.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 25, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Tomotaka Hirota, Yasunori Kurashima, Shuhei Nagaoka, Yukie Ohtsuka, Satoshi Sumiya, Takayuki Suzuki, Takashi Yamada
  • Publication number: 20200188887
    Abstract: Catalyst compositions, articles, systems and methods related to a three-way-catalyst composition comprising alumina doped with a transition metal.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Inventors: Masayuki Kobayashi, Shuhei Nagaoka
  • Publication number: 20200168732
    Abstract: A silicon carbide semiconductor device includes: a substrate; a first impurity region on the substrate; a base region on the first impurity region; a second impurity region in the base region; a trench gate structure including a gate insulation film and a gate electrode in a trench; a first electrode connected to the second impurity region and the base region; a second electrode on a rear surface of the substrate; a first current dispersion layer between the first impurity region and the base region; a plurality of first deep layers in the second current dispersion layer; a second current dispersion layer between the first current dispersion layer and the base region; and a second deep layer between the first current dispersion layer and the base region apart from the trench.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Shuhei MITANI, Aiko KAJI, Yasuhiro EBIHARA, Tatsuji NAGAOKA, Sachiko AOI
  • Publication number: 20200030775
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have an average particle size of about 1 to about 20 nm with a standard deviation (SD) no more than 1 nm.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Kyoji KITAMOTO, Shuhei NAGAOKA, Daisuke YOKOTA
  • Publication number: 20200030776
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first inorganic oxide, wherein the IR intensity ratio of bridge CO to atop CO on the PGM component is less than 3:1 under standard CO adsorption procedure.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Yuan JING, Shuhei NAGAOKA, Ken-ichi SHIMIZU, Takashi TOYAO
  • Publication number: 20190093531
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprises: a substrate; and a catalytic region on the substrate; wherein the catalytic region comprises a platinum group metal (PGM) component, an oxide, and a rare earth metal component; wherein the oxide is an inorganic oxide, an oxygen storage component (OSC) material, or a mixture thereof; wherein the rare earth metal component concentration by element on the surface of the oxide per unit specific surface area of the oxide is 1 ?mol/m2 to 20 ?mol/m2.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 28, 2019
    Inventors: Tomotaka HIROTA, Yasunori KURASHIMA, Shuhei NAGAOKA, Yukie OHTSUKA, Satoshi SUMIYA, Takayuki SUZUKI, Takashi YAMADA