Patents by Inventor NOBUTOSHI TAKAGI

NOBUTOSHI TAKAGI 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).

  • Gas sensor device
    Patent number: 11692958
    Abstract: A gas sensor device includes: a first electrode; a second electrode; a metal oxide layer that is disposed between the first electrode and the second electrode and is in contact with the first electrode and the second electrode; an interlayer insulating film that covers a part of the first electrode, a part of the second electrode, and a part of the metal oxide layer; and a hydrogen permeable film that allows only hydrogen to permeate, a local region that is in contact with the second electrode is provided inside the metal oxide layer, the local region having a higher oxygen deficiency than an oxygen deficiency of the other region in the metal oxide layer, an opening that exposes a gas contact portion which is a part of a main surface of the second electrode is provided in the interlayer insulating film, and the hydrogen permeable film is provided to cover at least the gas contact portion.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: July 4, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinya Suzuki, Kiyokazu Itoi, Daisuke Suetsugu, Norimichi Noguchi, Nobutoshi Takagi
  • GAS SENSOR DEVICE
    Publication number: 20220003706
    Abstract: A gas sensor device includes: a first electrode; a second electrode; a metal oxide layer that is disposed between the first electrode and the second electrode and is in contact with the first electrode and the second electrode; an interlayer insulating film that covers a part of the first electrode, a part of the second electrode, and a part of the metal oxide layer; and a hydrogen permeable film that allows only hydrogen to permeate, a local region that is in contact with the second electrode is provided inside the metal oxide layer, the local region having a higher oxygen deficiency than an oxygen deficiency of the other region in the metal oxide layer, an opening that exposes a gas contact portion which is a part of a main surface of the second electrode is provided in the interlayer insulating film, and the hydrogen permeable film is provided to cover at least the gas contact portion.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 6, 2022
    Inventors: SHINYA SUZUKI, KIYOKAZU ITOI, DAISUKE SUETSUGU, NORIMICHI NOGUCHI, NOBUTOSHI TAKAGI