Patents by Inventor Tomoyuki SETO

Tomoyuki SETO 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 bearing for an EGR valve and manufacturing method thereof
    Patent number: 11306778
    Abstract: Provided is a sintered bearing for an EGR valve, including raw material powder including 9% by weight to 12% by weight of aluminum, 0.1% by weight to 0.6% by weight of phosphorus, 3% by weight to 10% by weight of graphite, and the balance including copper as a main component, and inevitable impurities. The sintered bearing has a structure of a sintered aluminum-copper alloy. The sintered bearing further includes free graphite distributed in pores formed so as to be dispersed.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 19, 2022
    Assignee: NTN CORPORATION
    Inventors: Yoshinori Ito, Hiroharu Nagata, Tomoyuki Seto, Takahiro Gotou
  • SINTERED BEARING FOR AN EGR VALVE AND MANUFACTURING METHOD THEREOF
    Publication number: 20160223017
    Abstract: Provided is a sintered bearing for an EGR valve, including raw material powder including 9% by weight to 12% by weight of aluminum, 0.1% by weight to 0.6% by weight of phosphorus, 3% by weight to 10% by weight of graphite, and the balance including copper as a main component, and inevitable impurities. The sintered bearing has a structure of a sintered aluminum-copper alloy. The sintered bearing further includes free graphite distributed in pores formed so as to be dispersed.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 4, 2016
    Applicant: NTN CORPORATION
    Inventors: Yoshinori ITO, Hiroharu NAGATA, Tomoyuki SETO, Takahiro GOTOU
  • SINTERED BEARING FOR FUEL PUMP AND METHOD OF MANUFACTURING SAME
    Publication number: 20160223018
    Abstract: Provided is a sintered bearing (1, 2) for a fuel pump, including raw material powder including 8.5% by weight to 10% by weight of aluminum, 0.1% by weight to 0.6% by weight of phosphorus, and the balance including copper as a main component, and inevitable impurities. The sintered bearing (1, 2) has a structure of a sintered aluminum-copper alloy, and has a pore formed in a surface layer portion of the sintered bearing, which is smaller in size than an internal pore of the sintered bearing.
    Type: Application
    Filed: August 25, 2014
    Publication date: August 4, 2016
    Inventors: Yoshinori ITO, Hiroharu NAGATA, Yuta OHASHI, Tomoyuki SETO