Patents by Inventor Yusuke HAYAKAWA

Yusuke HAYAKAWA 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).

  • Publication number: 20230311398
    Abstract: A method for manufacturing a cylindrical honeycomb fired body including: preparing a cylindrical honeycomb formed body; obtaining a cylindrical honeycomb dried body by drying the cylindrical honeycomb formed body; calculating predetermined parameters (EAVE1, EAVE2, EAVE3 and EAVE4) from average values of distance between a center of gravity position O and an outer peripheral contour in a plurality of predetermined angle ranges; specifying a minimum value of the predetermined parameters; obtaining a cylindrical honeycomb fired body by placing the cylindrical honeycomb dried body on a shelf plate and firing it while passing it through a continuous firing furnace, such that the direction in which the cells of the cylindrical honeycomb dried body extend vertically, and a particular location on the outer peripheral side surface determined according to the minimum value is positioned at the front.
    Type: Application
    Filed: February 10, 2023
    Publication date: October 5, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Yasunori YAMAZAKI, Kazuya KAGEYAMA, Yusuke HAYAKAWA
  • Patent number: 11459180
    Abstract: A bearer for bearing a honeycomb green body includes a solid main body provided with a groove in which a concave arc surface extends along one direction; and a single-layer or multi-layer sponge layer attached to the arc surface of the groove. The sponge layer is curved along the arc surface of the groove and has a bearing surface curved along the arc surface.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 4, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Yusuke Hayakawa, Yasunori Yamazaki
  • Publication number: 20220306546
    Abstract: A method for manufacturing a pillar-shaped honeycomb fired body including: measuring a firing shrinkage at an end surface of a first pillar-shaped honeycomb firing body at every predetermined angle for one round based on a portion that has been located at the center of a die when a green body passes through the die, obtaining a second pillar-shaped honeycomb formed body having a corrected end surface contour by modifying an annular mask used for extrusion molding based on a result of the measuring, and then obtaining a second pillar-shaped honeycomb fired body by performing drying and firing.
    Type: Application
    Filed: February 9, 2022
    Publication date: September 29, 2022
    Applicant: NGK INSULATORS, LTD.
    Inventors: Shota UNO, Yasunori YAMAZAKI, Yusuke HAYAKAWA
  • Publication number: 20190248593
    Abstract: A bearer for bearing a honeycomb green body includes a solid main body provided with a groove in which a concave arc surface extends along one direction; and a single-layer or multi-layer sponge layer attached to the arc surface of the groove. The sponge layer is curved along the arc surface of the groove and has a bearing surface curved along the arc surface.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 15, 2019
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yusuke HAYAKAWA, Yasunori YAMAZAKI