Patents by Inventor Keiichiro Maeda

Keiichiro Maeda 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).

  • Seal ring and method for manufacturing seal ring
    Patent number: 10188010
    Abstract: This seal ring (1) is made of a clad material in which a base material layer (10) and a brazing filler metal layer (11) arranged on a first surface (10b) of the base material layer are bonded to each other, and a side brazing filler metal portion (11f) of the brazing filler metal layer covering a side surface (10c) of the base material layer is removed.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 22, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Junya Nishina, Keiichiro Maeda, Ken Asada
  • SEAL RING AND METHOD FOR MANUFACTURING SEAL RING
    Publication number: 20180213668
    Abstract: This seal ring (1) is made of a clad material in which a base material layer (10) and a brazing filler metal layer (11) arranged on a first surface (10b) of the base material layer are bonded to each other, and a side brazing filler metal portion (11f) of the brazing filler metal layer covering a side surface (10c) of the base material layer is removed.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Applicant: HITACHI METALS, LTD.
    Inventors: Junya Nishina, Keiichiro Maeda, Ken Asada
  • Seal ring and method for manufacturing seal ring
    Patent number: 9961791
    Abstract: This seal ring (1) is made of a clad material in which a base material layer (10) and a brazing filler metal layer (11) arranged on a first surface (10b) of the base material layer are bonded to each other, and a side brazing filler metal portion (11f) of the brazing filler metal layer covering a side surface (10c) of the base material layer is removed.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: May 1, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Junya Nishina, Keiichiro Maeda, Ken Asada
  • SEAL RING AND METHOD FOR MANUFACTURING SEAL RING
    Publication number: 20150342072
    Abstract: This seal ring (1) is made of a clad material in which a base material layer (10) and a brazing filler metal layer (11) arranged on a first surface (10b) of the base material layer are bonded to each other, and a side brazing filler metal portion (11f) of the brazing filler metal layer covering a side surface (10c) of the base material layer is removed.
    Type: Application
    Filed: January 15, 2013
    Publication date: November 26, 2015
    Applicant: HITACHI METALS, LTD.
    Inventors: Junya Nishina, Keiichiro Maeda, Ken Asada