Patents by Inventor Kazuhiko Kanoh

Kazuhiko Kanoh 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).

  • Electret
    Patent number: 11915883
    Abstract: An electret includes an electret layer. The electret layer is formed by subjecting a composite film in which inorganic dielectric particles are dispersed and held in a base film to a polarization treatment. The inorganic dielectric particles are mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 27, 2024
    Assignees: DENSO CORPORATION, TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Noriyuki Matsushita, Yoshihiro Kozawa, Kazuhiko Kanoh, Yumi Tanaka, Hirotoshi Otsuka, Yuki Kotaka
  • Electret
    Patent number: 11917919
    Abstract: An electret includes a substrate and an electret layer formed above a surface of the substrate. The electret layer is a composite metal compound containing two or more different metal elements, and is obtained by subjecting a thin film mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more to a polarization treatment.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 27, 2024
    Assignees: DENSO CORPORATION, TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Noriyuki Matsushita, Yoshihiro Kozawa, Kazuhiko Kanoh, Yumi Tanaka
  • Electret
    Patent number: 11558694
    Abstract: An electret includes a composite oxide having an ABO3 type perovskite structure containing two different metal elements A and B. The composite oxide is in a polarized state, at least a part of one of the metal elements A and B is substituted with a dopant element having a lower valence than the one of the metal elements A and B, and the composite oxide has a bandgap energy of 4 eV or more.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 17, 2023
    Assignees: DENSO CORPORATION, TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Yoshihiro Kozawa, Noriyuki Matsushita, Kazuhiko Kanoh, Yumi Tanaka, Tomoya Maruyama, Hiroshi Okamoto, Naoya Morioka, Katsuyoshi Saiki
  • ELECTRET
    Publication number: 20210183584
    Abstract: An electret includes an electret layer. The electret layer is formed by subjecting a composite film in which inorganic dielectric particles are dispersed and held in a base film to a polarization treatment. The inorganic dielectric particles are mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Inventors: Noriyuki Matsushita, Yoshihiro Kozawa, Kazuhiko Kanoh, Yumi Tanaka, Hirotoshi Otsuka, Yuki Kotaka
  • ELECTRET
    Publication number: 20210185451
    Abstract: An electret includes a composite oxide having an ABO3 type perovskite structure containing two different metal elements A and B. The composite oxide is in a polarized state, at least a part of one of the metal elements A and B is substituted with a dopant element having a lower valence than the one of the metal elements A and B, and the composite oxide has a bandgap energy of 4 eV or more.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Inventors: Yoshihiro Kozawa, Noriyuki Matsushita, Kazuhiko Kanoh, Yumi Tanaka, Tomoya Maruyama, Hiroshi Okamoto, Naoya Morioka, Katsuyoshi Saiki
  • ELECTRET
    Publication number: 20210184100
    Abstract: An electret includes a substrate and an electret layer formed above a surface of the substrate. The electret layer is a composite metal compound containing two or more different metal elements, and is obtained by subjecting a thin film mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more to a polarization treatment.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Inventors: Noriyuki MATSUSHITA, Yoshihiro KOZAWA, Kazuhiko KANOH, Yumi TANAKA
  • Optical gas concentration detector and method of producing structure used in the detector
    Patent number: 7807061
    Abstract: A method of producing a structure by three-dimensionally processing a flat member includes a preparing, a first forming and a second forming. In the preparing, a substrate is prepared. In the first forming, an etching mask is formed on the substrate. The etching mask has at least two openings, and areas of the two openings are different from each other. In the second forming, at least a part of a three-dimension surface shape of the structure is formed on a surface of the substrate by a dry-etching on the substrate in accordance with the area of the opening of the etching mask.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: October 5, 2010
    Assignee: DENSO CORPORATION
    Inventors: Hiroyuki Wado, Kazuhiko Kanoh
  • Optical gas concentration detector and method of producing structure used in the detector
    Publication number: 20080190175
    Abstract: A method of producing a structure by three-dimensionally processing a flat member includes a preparing, a first forming and a second forming. In the preparing, a substrate is prepared. In the first forming, an etching mask is formed on the substrate. The etching mask has at least two openings, and areas of the two openings are different from each other. In the second forming, at least a part of a three-dimension surface shape of the structure is formed on a surface of the substrate by a dry-etching on the substrate in accordance with the area of the opening of the etching mask.
    Type: Application
    Filed: July 10, 2007
    Publication date: August 14, 2008
    Applicant: DENSO CORPORATION
    Inventors: Hiroyuki Wado, Kazuhiko Kanoh