Patents by Inventor Yuta KIGUCHI

Yuta KIGUCHI 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: 20240347699
    Abstract: A negative electrode active material for a secondary battery includes a negative electrode active material particle that includes a first object including a silicon oxide, and a second object including at least one of copper, a copper compound, tungsten, or a molybdenum oxide and attached to a surface of the first object. A Raman spectrum of the negative electrode active material particle has a maximum peak within a range of greater than or equal to 470 cm?1 and less than or equal to 490 cm?1. An XRD spectrum thereof has a peak within a range of 37°±1° and a peak within a range of 44°±1°, has a peak within a range of 40°±1°, or has a peak within any one of a range of 23°±1°, a range of 25°±1°, a range of 37°±1°, a range of 41°±1°, a range of 54°±1°, or a range of 60°±10.
    Type: Application
    Filed: June 26, 2024
    Publication date: October 17, 2024
    Inventors: Yuichi SANO, Yasuhiro IKEDA, Qin SI, Daisuke ITO, Yuta KIGUCHI
  • Patent number: 12033809
    Abstract: A conductive material including a plurality of particles, the plurality of particles including at least a first particle having: a layered material including one or plural layers, wherein the one or plural layers include a layer body represented by MmXn (where M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5), and a modifier or terminal T (where T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom) existing on a surface of the layer body; and a metal material at least partially covering the layered material.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: July 9, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuusuke Ogawa, Masashi Koyanagi, Yuta Kiguchi
  • Publication number: 20220157534
    Abstract: A conductive material including a plurality of particles, the plurality of particles including at least a first particle having: a layered material including one or plural layers, wherein the one or plural layers include a layer body represented by MmXn (where M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5), and a modifier or terminal T (where T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom) existing on a surface of the layer body; and a metal material at least partially covering the layered material.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Inventors: Yuusuke OGAWA, Masashi KOYANAGI, Yuta KIGUCHI
  • Patent number: 11279392
    Abstract: A steering column device includes a cylindrical inner tube, and a cylindrical outer tube which is fixed to the inner tube by being externally fitted to slide in an axial direction of the inner tube and being elastically reduced in diameter, wherein the outer tube is configured to have a first slit and a second slit to be reduced in diameter. A stress alleviation portion is provided at the second slit. A contour shape of the stress alleviation portion is set to include an elliptic arc-shaped portion of which a direction of a major axis is a direction intersecting the second slit.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 22, 2022
    Assignees: JTEKT CORPORATION, FUJI KIKO CO., LTD.
    Inventors: Tomonori Sugiura, Kentaro Kikuiri, Yuta Kiguchi, Kota Higuchi
  • Publication number: 20210078626
    Abstract: A steering column device includes a cylindrical inner tube, and a cylindrical outer tube which is fixed to the inner tube by being externally fitted to slide in an axial direction of the inner tube and being elastically reduced in diameter, wherein the outer tube is configured to have a first slit and a second slit to be reduced in diameter. A stress alleviation portion is provided at the second slit. A contour shape of the stress alleviation portion is set to include an elliptic arc-shaped portion of which a direction of a major axis is a direction intersecting the second slit.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 18, 2021
    Applicants: JTEKT CORPORATION, FUJI KIKO CO., LTD.
    Inventors: Tomonori SUGIURA, Kentaro KIKUIRI, Yuta KIGUCHI, Kota Higuchi