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).
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Patent number: 11795939Abstract: 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: GrantFiled: May 25, 2021Date of Patent: October 24, 2023Assignee: NITTO KOHKI CO., LTD.Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
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Patent number: 11761566Abstract: 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: GrantFiled: May 26, 2021Date of Patent: September 19, 2023Assignee: NITTO KOHKI CO., LTD.Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
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Patent number: 11486373Abstract: 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: GrantFiled: June 17, 2020Date of Patent: November 1, 2022Assignee: NITTO KOHKI CO., LTD.Inventors: Kousei Houguchi, Hiroshi Nishitsuji
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Publication number: 20210277887Abstract: 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: ApplicationFiled: May 25, 2021Publication date: September 9, 2021Applicant: NITTO KOHKI CO., LTD.Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
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Publication number: 20210278022Abstract: 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: ApplicationFiled: May 26, 2021Publication date: September 9, 2021Applicant: NITTO KOHKI CO., LTD.Inventors: Kazumasa Kaiya, Hiroshi Nishitsuji
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Patent number: 10918977Abstract: 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: GrantFiled: April 18, 2018Date of Patent: February 16, 2021Assignee: NITTO KOHKI CO., LTD.Inventors: Hiroto Sakurai, Hiroshi Nishitsuji
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Publication number: 20180229159Abstract: 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: ApplicationFiled: April 18, 2018Publication date: August 16, 2018Applicant: NITTO KOHKI CO., LTD.Inventors: Hiroto SAKURAI, Hiroshi NISHITSUJI
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Patent number: D886159Type: GrantFiled: November 30, 2018Date of Patent: June 2, 2020Assignee: NITTO KOHKI CO., LTD.Inventors: Kousei Houguchi, Hiroshi Nishitsuji
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Patent number: D946626Type: GrantFiled: June 17, 2020Date of Patent: March 22, 2022Assignee: NITTO KOHKI CO., LTD.Inventors: Katsuhiko Shibukawa, Hiroto Sakurai, Hiroshi Nishitsuji, Kazushige Nishi