Patents by Inventor Naohiro Yoshida

Naohiro Yoshida 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: 11964794
    Abstract: A container capable of suppressing the unexpected opening of a pair of upper walls including a first side wall and a second side wall facing each other; a third side wall provided therebetween; a first upper wall and a second upper wall; and a locking member. The first side wall and the second side wall face each other. The first upper wall and the second upper wall are configured to be rotatable with respect to the first side wall and the second side wall, respectively. The locking member includes a fixed portion and an engagement portion, the fixed portion being fixed to the third side wall, the engagement portion being engaged with at least one of the first upper wall and the second upper wall to prevent the first upper wall and the second upper wall from opening.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 23, 2024
    Assignee: Kyoraku Co., Ltd.
    Inventors: Kouichiro Yoshida, Naohiro Ikeguchi
  • Patent number: 11134592
    Abstract: A power conversion device capable of suppressing air from flowing back into a housing is provided. The power conversion device includes a power conversion unit configured to perform power conversion, a housing for accommodating the power conversion and having an air inlet and an air outlet, a fan provided inside the housing and generating airflow in such a manner that air flows to the outside of the housing via the air outlet after flowing into the housing via the air inlet, and a cover provided at the air outlet, the cover being configured to be brought into an opened state with respect to the air outlet if the airflow generated by the fan is stronger than airflow moving from the outside of the housing toward the air outlet, and to be brought into a closed state with respect to the air outlet if the airflow generated by the fan is weaker than the airflow moving from the outside of the housing toward the exhaust of the housing.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 28, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Naohiro Yoshida, Nobuhiro Takahashi
  • Patent number: 10836410
    Abstract: A carbody of a railcar includes: an underframe; a first member provided at one of vertical sides of a vertical center of the underframe, supported by the underframe, and absorbing collision energy; a second member provided at the other vertical side of the vertical center of the underframe, supported by the underframe, and contacting an obstacle when the first member is compressed by collision with the obstacle. In a case where the second member receives a reaction force from the obstacle when the first member is compressed by the collision with the obstacle, the second member transfers to the underframe a moment load that is opposite in a rotational direction to a moment load transferred to the underframe by the first member.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: November 17, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Naohiro Yoshida, Shinichiro Hata, Seiichiro Yagi, Masayuki Tomizawa
  • Patent number: 10770738
    Abstract: Disclosed is a vehicle with a fuel cell system mounted thereon, the fuel cell system including: a fuel cell; a plurality of tanks for storing therein fuel gas to be used for power generation of the fuel cell, each tank having an opening/closing valve for switching over between execution and halt of supply of the fuel gas; a plurality of supply flow paths connected to the opening/closing valves in the plurality of tanks to feed the fuel gas supplied from the plurality of tanks, respectively; a merging flow path for merging together the plurality of supply flow paths to feed the fuel gas to the fuel cell; and a controller for controlling opening and closing of the opening/closing valves.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: September 8, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Naohiro Yoshida
  • Patent number: 10676114
    Abstract: A collision energy absorbing device of a railcar includes: at least one outside plate constituting an outer tube having an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the at least one outside plate, the at least one partition plate fixed to the at least one outside plate and dividing the internal space. An end portion of the partition plate which portion is located at an end in a direction perpendicular to the axis is sandwiched by the at least one outside plate and constitutes a part of the outer tube.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 9, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Naohiro Yoshida, Shinichiro Hata, Seiichiro Yagi, Masayuki Tomizawa
  • Patent number: 10493932
    Abstract: A collision energy absorbing device of a railcar includes: an outside plate constituting an outer tube including an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the outside plate, the at least one partition plate fixed to the outside plate and dividing the internal space. An outer shape of the outer tube is a shape that is symmetrical with respect to a virtual horizontal surface including the axis, and the at least one partition plate includes a missing portion in the internal space.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: December 3, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Naohiro Yoshida, Shinichiro Hata, Seiichiro Yagi, Masayuki Tomizawa
  • Patent number: 10493999
    Abstract: A railcar head structure includes: a roof bodyshell positioned above a driver's cab window; and an underframe. The underframe includes: a pair of side sills; and a center sill located between the side sills and extending in a car longitudinal direction. A collision post is erected on a tip end of the center sill. A pillar is provided at the driver's cab window and extends so as to divide the driver's cab window. The pillar includes one end joined to the collision post and the other end joined to the roof bodyshell and couples the roof bodyshell and the collision post to each other.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 3, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Naohiro Yoshida, Shinichiro Hata, Seiichiro Yagi, Masayuki Tomizawa
  • Publication number: 20190274236
    Abstract: A power conversion device capable of suppressing air from flowing back into a housing is provided. The power conversion device includes a power conversion unit configured to perform power conversion, a housing for accommodating the power conversion and having an air inlet and an air outlet, a fan provided inside the housing and generating airflow in such a manner that air flows to the outside of the housing via the air outlet after flowing into the housing via the air inlet, and a cover provided at the air outlet, the cover being configured to be brought into an opened state with respect to the air outlet if the airflow generated by the fan is stronger than airflow moving from the outside of the housing toward the air outlet, and to be brought into a closed state with respect to the air outlet if the airflow generated by the fan is weaker than the airflow moving from the outside of the housing toward the exhaust of the housing.
    Type: Application
    Filed: November 28, 2016
    Publication date: September 5, 2019
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Naohiro YOSHIDA, Nobuhiro TAKAHASHI
  • Patent number: 10124817
    Abstract: A carbody of a railcar includes a roof bodyshell, a side bodyshell, and a cantrail. The cantrail includes: an outside plate; an inside plate arranged at a car inner side of the outside plate and spaced apart from the outside plate; and a plurality of coupling rib plates coupled to the outside plate and the inside plate and forming a plurality of triangles together with the outside plate and the inside plate. Each of the outside plate and the inside plate includes a plurality of sections each connecting apexes of the triangle. The plurality of sections of at least one of the outside plate and the inside plate include a plurality of flat plate sections. In the at least one plate, two or more adjacent flat plate sections among the plurality of flat plate sections are arranged on a straight line.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 13, 2018
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Naohiro Yoshida, Naoaki Kawakami, Hiroyuki Sakurai
  • Publication number: 20180309146
    Abstract: Disclosed is a vehicle with a fuel cell system mounted thereon, the fuel cell system including: a fuel cell; a plurality of tanks for storing therein fuel gas to be used for power generation of the fuel cell, each tank having an opening/closing valve for switching over between execution and halt of supply of the fuel gas; a plurality of supply flow paths connected to the opening/closing valves in the plurality of tanks to feed the fuel gas supplied from the plurality of tanks, respectively; a merging flow path for merging together the plurality of supply flow paths to feed the fuel gas to the fuel cell; and a controller for controlling opening and closing of the opening/closing valves.
    Type: Application
    Filed: April 19, 2018
    Publication date: October 25, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naohiro YOSHIDA
  • Publication number: 20180222417
    Abstract: A collision energy absorbing device of a railcar includes: an outside plate constituting an outer tube including an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the outside plate, the at least one partition plate fixed to the outside plate and dividing the internal space. An outer shape of the outer tube is a shape that is symmetrical with respect to a virtual horizontal surface including the axis, and the at least one partition plate includes a missing portion in the internal space.
    Type: Application
    Filed: June 7, 2016
    Publication date: August 9, 2018
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi SANO, Naoaki KAWAKAMI, Naohiro YOSHIDA, Shinichiro HATA, Seiichiro YAGI, Masayuki TOMIZAWA
  • Patent number: 10017192
    Abstract: A railcar collision energy absorbing device includes: an energy absorbing element crushed in collision; and a casing extending in a car longitudinal direction so as to accommodate the energy absorbing element. One end of the casing is supported by a main structure of a railcar. The casing is constituted by a plurality of tubular bodies whose overlapping portions are coupled to each other. The casing telescopically contracts in the collision by breaking of a coupling portion between the tubular bodies.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: July 10, 2018
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Naohiro Yoshida, Shinichiro Hata, Seiichiro Yagi, Masayuki Tomizawa
  • Publication number: 20180162422
    Abstract: A collision energy absorbing device of a railcar includes: at least one outside plate constituting an outer tube having an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the at least one outside plate, the at least one partition plate fixed to the at least one outside plate and dividing the internal space. An end portion of the partition plate which portion is located at an end in a direction perpendicular to the axis is sandwiched by the at least one outside plate and constitutes a part of the outer tube.
    Type: Application
    Filed: June 7, 2016
    Publication date: June 14, 2018
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi SANO, Naoaki KAWAKAMI, Naohiro YOSHIDA, Shinichiro HATA, Seiichiro YAGI, Masayuki TOMIZAWA
  • Publication number: 20180079432
    Abstract: A carbody of a railcar includes: an underframe; a first member provided at one of vertical sides of a vertical center of the underframe, supported by the underframe, and absorbing collision energy; a second member provided at the other vertical side of the vertical center of the underframe, supported by the underframe, and contacting an obstacle when the first member is compressed by collision with the obstacle. In a case where the second member receives a reaction force from the obstacle when the first member is compressed by the collision with the obstacle, the second member transfers to the underframe a moment load that is opposite in a rotational direction to a moment load transferred to the underframe by the first member.
    Type: Application
    Filed: May 31, 2016
    Publication date: March 22, 2018
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi SANO, Naoaki KAWAKAMI, Naohiro YOSHIDA, Shinichiro HATA, Seiichiro YAGI, Masayuki TOMIZAWA
  • Patent number: 9849891
    Abstract: A railcar includes a side sliding door and entrance peripheral-member surrounding the side entrance. The entrance peripheral-member includes a door pocket post in which outer and inner portions are inwardly of the outer portion in car-width direction coupled to each other. The side sliding door peripheral portion is pressed against an edge portion, extending along the side entrance of the entrance peripheral-member via a rubber seal at the side entrance closed state. In the side entrance open state, the side sliding door is pulled into a door pocket space facing the door pocket post inner portion. A portion projecting inwardly in car-width direction beyond the inner portion and including a tip end contacting the rubber seal provided at at least part of region constituted by portions of upper and lower edges of the side entrance peripheral-member and lateral edge at the edge portion door pocket post side of the entrance peripheral-member.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: December 26, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Naoaki Kawakami, Shinichi Okada, Naohiro Yoshida, Kazumasa Inaba, Kenji Waki
  • Patent number: 9718481
    Abstract: A railcar includes: an underframe including an end beam at its railcar-longitudinal-direction end portion; side bodyshells; a roof bodyshell; side outside plates respectively arranged at both railcar-width-direction end portions of the railcar and constituting the side bodyshells; corner posts extending from the end beam toward the roof bodyshell; and intermediate coupling members each configured to couple the side outside plate and the corner post, the stiffness of the intermediate coupling member in a railcar longitudinal direction being lower than the stiffness of the intermediate coupling member in a vertical direction.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: August 1, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Sano, Naoaki Kawakami, Yasufumi Minamimoto, Naohiro Yoshida
  • Publication number: 20170144677
    Abstract: A carbody of a railcar includes a roof bodyshell, a side bodyshell, and a cantrail. The cantrail includes: an outside plate; an inside plate arranged at a car inner side of the outside plate and spaced apart from the outside plate; and a plurality of coupling rib plates coupled to the outside plate and the inside plate and forming a plurality of triangles together with the outside plate and the inside plate. Each of the outside plate and the inside plate includes a plurality of sections each connecting apexes of the triangle. The plurality of sections of at least one of the outside plate and the inside plate include a plurality of flat plate sections. In the at least one plate, two or more adjacent flat plate sections among the plurality of flat plate sections are arranged on a straight line.
    Type: Application
    Filed: February 5, 2014
    Publication date: May 25, 2017
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Naohiro YOSHIDA, Naoaki KAWAKAMI, Hiroyuki SAKURAI
  • Patent number: 9419291
    Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naohiro Yoshida, Toshiyuki Kondo, Masahiko Hibino, Osamu Yumita, Yoshihiro Funayama
  • Publication number: 20160167679
    Abstract: A railcar head structure includes: a roof bodyshell positioned above a driver's cab window; and an underframe. The underframe includes: a pair of side sills; and a center sill located between the side sills and extending in a car longitudinal direction. A collision post is erected on a tip end of the center sill. A pillar is provided at the driver's cab window and extends so as to divide the driver's cab window. The pillar includes one end joined to the collision post and the other end joined to the roof bodyshell and couples the roof bodyshell and the collision post to each other.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi SANO, Naoaki KAWAKAMI, Naohiro YOSHIDA, Shinichiro HATA, Seiichiro YAGI, Masayuki TOMIZAWA
  • Publication number: 20160152247
    Abstract: A railcar collision energy absorbing device includes: an energy absorbing element crushed in collision; and a casing extending in a car longitudinal direction so as to accommodate the energy absorbing element. One end of the casing is supported by a main structure of a railcar. The casing is constituted by a plurality of tubular bodies whose overlapping portions are coupled to each other. The casing telescopically contracts in the collision by breaking of a coupling portion between the tubular bodies.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 2, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsushi SANO, Naoaki KAWAKAMI, Naohiro YOSHIDA, Shinichiro HATA, Seiichiro YAGI, Masayuki TOMIZAWA