Patents by Inventor Akinobu ITOU

Akinobu ITOU 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: 11746405
    Abstract: A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing iron (Fe) as a major ingredient. The sprayed coating for the sliding member containing 10 mass % or more and 20 mass % or less of chromium (Cr), and 0.1 mass % or more and 0.5 mass % or less of silicon (Si) and having the content rate of an oxide in the sprayed coating of 1 area % or less has corrosion resistance with improved seizure resistance.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 5, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi Higuchi, Hayato Hirayama, Akinobu Itou
  • Patent number: 11680499
    Abstract: A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 20, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori Izawa, Yutaka Mabuchi, Akinobu Itou, Junichi Arai, Misao Mogami, Masanao Harada, Moriyuki Nogami
  • Patent number: 11585289
    Abstract: A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing chromium (Cr). The sprayed coating for the sliding member has the content rate of the chromium of 8 mass % or more, includes a structure that comprises crystal grains contained in the sprayed coating and having an average grain size of 3 ?m or less, has a Vickers hardness of 300 Hv or more, and then is excellent at abrasion resistance.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: February 21, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi Higuchi, Akinobu Itou, Hayato Hirayama
  • Publication number: 20210404044
    Abstract: A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing iron (Fe) as a major ingredient. The sprayed coating for the sliding member containing 10 mass % or more and 20 mass % or less of chromium (Cr), and 0.1 mass % or more and 0.5 mass % or less of silicon (Si) and having the content rate of an oxide in the sprayed coating of 1 area % or less has corrosion resistance with improved seizure resistance.
    Type: Application
    Filed: November 2, 2018
    Publication date: December 30, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi HIGUCHI, Hayato HIRAYAMA, Akinobu ITOU
  • Publication number: 20210404413
    Abstract: A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing chromium (Cr). The sprayed coating for the sliding member has the content rate of the chromium of 8 mass % or more, includes a structure that comprises crystal grains contained in the sprayed coating and having an average grain size of 3 ?m or less, has a Vickers hardness of 300 Hv or more, and then is excellent at abrasion resistance.
    Type: Application
    Filed: November 2, 2018
    Publication date: December 30, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi HIGUCHI, Akinobu ITOU, Hayato HIRAYAMA
  • Publication number: 20210293158
    Abstract: A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 23, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori IZAWA, Yutaka MABUCHI, Akinobu ITOU, Junichi ARAI, Misao MOGAMI, Masanao HARADA, Moriyuki NOGAMI