Patents by Inventor Tsuneo Funabiki

Tsuneo Funabiki 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: 20220034503
    Abstract: A premixing flow path forming member of a premixing device includes a member whose attachment mode can be changed, and flow path resistance of a fuel gas flow path can be changed when the attachment mode of the member is changed.
    Type: Application
    Filed: July 14, 2021
    Publication date: February 3, 2022
    Applicant: NORITZ CORPORATION
    Inventors: Kyohei OGAWA, Keiichi MIURA, Tsuneo FUNABIKI, Tatsuya KARAKI
  • Publication number: 20210394134
    Abstract: A premixing device includes: a gas flow passage forming member in which an x direction is used as an axial length direction, and a Venturi-shaped gas flow passage into which air can flow in from the outside is formed inside; and a blade portion positioned in the gas flow passage, extending in a y direction, and equipped with a fuel gas outlet. The blade portion includes first and second blade portions spaced apart from each other in a z direction, and an air flow path near the center through which a part of the air flows is formed between these first and second blade portions. At least one of a pair of surfaces of the first and second blade portions facing each other is equipped with an inner bulging portion that bulges in the z direction so as to squeeze a part of the air flow path near the center.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 23, 2021
    Applicant: NORITZ CORPORATION
    Inventors: Keiichi MIURA, Tsuneo FUNABIKI, Tatsuya KARAKI, Kyohei OGAWA
  • Publication number: 20210131702
    Abstract: A water heating device equipped with a housing, a fan and a chamber arranged in the interior of the housing, and screws. The housing has first and second side plates which oppose one another in a first direction and extend from the ends of a back plate along a second direction intersecting the first direction. An opening part is provided in the housing on the side opposite the back plate in the second direction. The fan has a discharge opening, a first flow passage extending along the first direction, and a first flange. The chamber has an intake opening, a second flow passage extending along the first direction, and a second flange. The first and the second flanges are secured by screws. In a planar view, the center axis of the screws is slanted such that a head portion is closer to the opening part than the tip-end portion.
    Type: Application
    Filed: August 14, 2019
    Publication date: May 6, 2021
    Applicant: NORITZ CORPORATION
    Inventors: Tsuneo Funabiki, Keiichi MIURA