Patents by Inventor Fumio Ishimoto

Fumio Ishimoto 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).

  • Sintered friction material
    Patent number: 11534829
    Abstract: A sintered friction material is formed by pressure sintering mixed powder at 800° C. or above, the mixed powder consisting of, in mass %, Cu and/or Cu alloy: 40.0 to 80.0%, Ni: 0% or more and less than 5.0%, Sn: 0 to 10.0%, Zn: 0 to 10.0%, VC: 0.5 to 5.0%, Fe and/or Fe alloy: 2.0 to 40.0%, lubricant: 5.0 to 30.0%, metal oxide and/or metal nitride: 1.5 to 30.0%, and the balance being impurity.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: December 27, 2022
    Assignees: NIPPON STEEL CORPORATION, FINE SINTER CO., LTD.
    Inventors: Manabu Kubota, Naomitsu Mizui, Fumio Ishimoto, Kazutaka Asabe, Osamu Kanda, Satoru Nakano, Takeshi Nakano, Kazumichi Kawasaki, Isao Shimazoe
  • SINTERED FRICTION MATERIAL
    Publication number: 20200038959
    Abstract: A sintered friction material is formed by pressure sintering mixed powder at 800° C. or above, the mixed powder consisting of, in mass %, Cu and/or Cu alloy: 40.0 to 80.0%, Ni: 0% or more and less than 5.0%, Sn: 0 to 10.0%, Zn: 0 to 10.0%, VC: 0.5 to 5.0%, Fe and/or Fe alloy: 2.0 to 40.0%, lubricant: 5.0 to 30.0%, metal oxide and/or metal nitride: 1.5 to 30.0%, and the balance being impurity.
    Type: Application
    Filed: April 7, 2017
    Publication date: February 6, 2020
    Applicants: NIPPON STEEL CORPORATION, FINE SINTER CO., LTD.
    Inventors: Manabu KUBOTA, Naomitsu MIZUI, Fumio ISHIMOTO, Kazutaka ASABE, Osamu KANDA, Satoru NAKANO, Takeshi NAKANO, Kazumichi KAWASAKI, Isao SHIMAZOE
  • COPPER ALLOY POWDER, SINTERED COPPER ALLOY BODY, AND BRAKE LINING FOR USE IN HIGH-SPEED RAILWAYS
    Publication number: 20160047016
    Abstract: A sintered friction material for use in a high-speed railway is manufactured using a Cu alloy powder produced using an atomizing method from a Cu alloy containing 0.1 to 2.0 mass % of Fe. This friction material has both sufficient high strength and high thermal conductivity.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 18, 2016
    Inventors: Futoshi KATSUKI, Fumio ISHIMOTO, Osamu KANDA, Kazutaka ASABE, Go ADACHI, Toshiyuki FUJII
  • SINTERED FRICTION MATERIAL FOR HIGH-SPEED RAILWAY
    Publication number: 20140109723
    Abstract: Provided is a sintered friction material exhibiting high braking power, and being excellent in stability of braking power at a high temperature. The sintered friction material of the present invention includes a chemical composition containing: by mass %, Fe of 7.5% or more, Cu of 50% or more, graphite of 5 to 15%, molybdenum disulfide of 0.3 to 7%, and silica of 0.5 to 10%, wherein Fe/Cu is 0.15 to 0.40.
    Type: Application
    Filed: March 28, 2012
    Publication date: April 24, 2014
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Fumio Ishimoto, Futoshi Katsuki, Kazutaka Asabe, Osamu Kanda