Patents by Inventor Hiroshi NISHITSUJI

Hiroshi NISHITSUJI 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).

  • Patent number: 11795939
    Abstract: A pump installation member has a first and second mutually discrete support members to be secured to predetermined installation portions of the first and second pump units, respectively. The pump installation member further has installation elastic members to be set between the first and second support members and the installation surface. The installation elastic members are elastically deformable as the first and second support members are displaced toward the installation surface when the first and second support members are fastened to the installation surface.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: October 24, 2023
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
  • Patent number: 11761566
    Abstract: A connecting pipe has a connecting pipe portion having, at the opposite ends thereof, connection opening end portions. The connecting pipe has a bendable portion provided between the opposite ends of the connecting pipe portion to allow the connecting pipe portion to be bent relative to the longitudinal axis of the connecting pipe portion. The connecting pipe further has rigid portions extending from the bendable portion to the connection opening end portions, respectively. The rigid portions have a higher rigidity than the bendable portion. Bending the connecting pipe portion at the bendable portion allows the connection opening end portions at the opposite ends to be fitted to associated pipe end portions, respectively. The connecting pipe portion has an elastic restoring force to maintain the state where the connection opening end portions are fitted to the associated pipe end openings, respectively.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: September 19, 2023
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
  • Patent number: 11486373
    Abstract: The pump has a casing accommodating a piston and a driving part. The casing has a first casing member having a driving part retaining portion retaining the driving part, a second casing member fixedly stacked on the first casing member in the reciprocating direction of the piston, and a cylindrical pump chamber peripheral wall member disposed around a head of the piston. The second casing member has an end wall portion extending in a transverse direction substantially perpendicular to the reciprocating direction. A pump chamber, a delivery chamber, and a buffer chamber are defined between the first casing member and the end wall portion of the second casing member. The pump chamber, the delivery chamber, and the buffer chamber are disposed side-by-side in the transverse direction.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: November 1, 2022
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Kousei Houguchi, Hiroshi Nishitsuji
  • Publication number: 20210277887
    Abstract: A pump installation member has a first and second mutually discrete support members to be secured to predetermined installation portions of the first and second pump units, respectively. The pump installation member further has installation elastic members to be set between the first and second support members and the installation surface. The installation elastic members are elastically deformable as the first and second support members are displaced toward the installation surface when the first and second support members are fastened to the installation surface.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Applicant: NITTO KOHKI CO., LTD.
    Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
  • Publication number: 20210278022
    Abstract: A connecting pipe has a connecting pipe portion having, at the opposite ends thereof, connection opening end portions. The connecting pipe has a bendable portion provided between the opposite ends of the connecting pipe portion to allow the connecting pipe portion to be bent relative to the longitudinal axis of the connecting pipe portion. The connecting pipe further has rigid portions extending from the bendable portion to the connection opening end portions, respectively. The rigid portions have a higher rigidity than the bendable portion. Bending the connecting pipe portion at the bendable portion allows the connection opening end portions at the opposite ends to be fitted to associated pipe end portions, respectively. The connecting pipe portion has an elastic restoring force to maintain the state where the connection opening end portions are fitted to the associated pipe end openings, respectively.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Applicant: NITTO KOHKI CO., LTD.
    Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
  • Patent number: 10918977
    Abstract: The present disclosure is directed toward a suction nozzle operable to remove solid contaminants from a fluid without causing a substantial increase in fluid resistance. The suction nozzle has a vertical flow path, a contaminant precipitation recess opened upward under the vertical flow path, and a lateral flow path extending laterally from the vertical flow path at a position above the contaminant precipitation recess. The fluid sucked from a suction opening in the lower surface is led to the vertical flow path through the lateral flow path and flows upward through the vertical flow path to reach a connection port. With fluid flowing through the vertical flow path, solid contaminants contained in the fluid settle down by gravity and precipitate in the contaminant precipitation recess and are separated and removed from the fluid.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 16, 2021
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Hiroto Sakurai, Hiroshi Nishitsuji
  • Publication number: 20180229159
    Abstract: The present disclosure is directed toward a suction nozzle operable to remove solid contaminants from a fluid without causing a substantial increase in fluid resistance. The suction nozzle has a vertical flow path, a contaminant precipitation recess opened upward under the vertical flow path, and a lateral flow path extending laterally from the vertical flow path at a position above the contaminant precipitation recess. The fluid sucked from a suction opening in the lower surface is led to the vertical flow path through the lateral flow path and flows upward through the vertical flow path to reach a connection port. With fluid flowing through the vertical flow path, solid contaminants contained in the fluid settle down by gravity and precipitate in the contaminant precipitation recess and are separated and removed from the fluid.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 16, 2018
    Applicant: NITTO KOHKI CO., LTD.
    Inventors: Hiroto SAKURAI, Hiroshi NISHITSUJI
  • Patent number: D886159
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 2, 2020
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Kousei Houguchi, Hiroshi Nishitsuji
  • Patent number: D946626
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 22, 2022
    Assignee: NITTO KOHKI CO., LTD.
    Inventors: Katsuhiko Shibukawa, Hiroto Sakurai, Hiroshi Nishitsuji, Kazushige Nishi