Patents by Inventor Hajime Murata

Hajime Murata 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: 11008663
    Abstract: The electrolysis system of the present invention has a water electrolysis unit equipped with a water electrolysis cell using a solid polymer electrolyte membrane as its diaphragm, a DC power source for supplying the water electrolysis cell with a DC current, and a mitigation unit for mitigating, when a counter electromotive force or abrupt potential fluctuation occurs in the water electrolysis cell, the counter electromotive force or the potential fluctuation. The mitigation unit is preferably a coil+diode (A) connected in parallel between the DC power source and the water electrolysis cell or a diode (B) connected between the DC power source and the water electrolysis cell. The electrolysis system is preferably equipped further with a lowering rate controller for controlling the lowering rate of a current supplied from the DC power source to the water electrolysis cell.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hajime Murata, Kiyoshi Yamazaki
  • Patent number: 10957925
    Abstract: First, a reaction gas is supplied to a fuel cell stack including a laminate of solid polymer electrolyte fuel cells and power generation is performed so that a temperature of the fuel cell stack reaches 65° C. or higher (heating power generation step). Next, the reaction gas is supplied to the fuel cell stack and the power generation is performed under a condition in which relative humidity is 100% or more (cleaning power generation step). Cooling water of room temperature may be supplied to the fuel cell stack from the outside before the cleaning power generation step is performed after the heating power generation step is completed, or after the cleaning power generation step is completed (quenching step).
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 23, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Murata, Kensaku Kodama, Manabu Kato, Toshiaki Kusakari
  • Publication number: 20190348687
    Abstract: A bipolar plate includes a substrate and a coating film that is formed at least on a part of a surface of the substrate. The coating film includes a phosphide having a composition represented by M2-xTixP, where M is any one or more elements selected from the group consisting of Ni, Co, Fe, Mn and Cr, and 0.1?x?1.9. The coating film preferably includes two kinds or more of the metal elements M, and preferably has a thickness ranging from 0.05 ?m or greater to 100 ?m or less.
    Type: Application
    Filed: March 4, 2019
    Publication date: November 14, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hiroaki WAKAYAMA, Nobuaki SUZUKI, Hajime MURATA, Kiyoshi YAMAZAKI
  • Publication number: 20190193573
    Abstract: A traveling energy distribution system includes a plurality of supply facilities each of which is able to supply traveling energy to a vehicle, an information acquisition unit configured to acquire, from a vehicle, vehicle information relevant to an amount of traveling energy remaining in the vehicle and acquire, from each of the plurality of supply facilities, supply facility information relevant to an amount of traveling energy that can be supplied from that supply facility, and a determination unit configured to determine a transfer source supply facility and a transfer destination supply facility for traveling energy to be transferred from among the plurality of supply facilities and determine an amount of the traveling energy to be transferred based on the vehicle information and the supply facility information acquired by the information acquisition unit.
    Type: Application
    Filed: November 16, 2018
    Publication date: June 27, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi IWAI, Koji YAMADA, Marie ISHIKAWA, Akinori SATO, Hiroyuki YAMADA, Akira SHICHI, Masanori ISHIGAKI, Shuji TOMURA, Shigeaki GOTO, Hajime MURATA, Kenji ITO, Reiko MAKINO, Keisuke ICHIGE
  • Publication number: 20190161874
    Abstract: The electrolysis system of the present invention has a water electrolysis unit equipped with a water electrolysis cell using a solid polymer electrolyte membrane as its diaphragm, a DC power source for supplying the water electrolysis cell with a DC current, and a mitigation unit for mitigating, when a counter electromotive force or abrupt potential fluctuation occurs in the water electrolysis cell, the counter electromotive force or the potential fluctuation. The mitigation unit is preferably a coil+diode (A) connected in parallel between the DC power source and the water electrolysis cell or a diode (B) connected between the DC power source and the water electrolysis cell. The electrolysis system is preferably equipped further with a lowering rate controller for controlling the lowering rate of a current supplied from the DC power source to the water electrolysis cell.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 30, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hajime MURATA, Kiyoshi YAMAZAKI
  • Publication number: 20170338499
    Abstract: First, a reaction gas is supplied to a fuel cell stack including a laminate of solid polymer electrolyte fuel cells and power generation is performed so that a temperature of the fuel cell stack reaches 65° C. or higher (heating power generation step). Next, the reaction gas is supplied to the fuel cell stack and the power generation is performed under a condition in which relative humidity is 100% or more (cleaning power generation step). Cooling water of room temperature may be supplied to the fuel cell stack from the outside before the cleaning power generation step is performed after the heating power generation step is completed, or after the cleaning power generation step is completed (quenching step).
    Type: Application
    Filed: January 31, 2017
    Publication date: November 23, 2017
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime MURATA, Kensaku KODAMA, Manabu KATO, Toshiaki KUSAKARI
  • Patent number: 9601782
    Abstract: A method of producing a displacement plating precursor, including a deposition step of depositing a Cu layer on a surface of a core particle formed of Pt or a Pt alloy by contacting a Cu ion-containing acidic aqueous solution with at least a portion of a Cu electrode, and contacting the Cu electrode with the core particle or with a composite, in which the core particle is supported on an electroconductive support, within the acidic aqueous solution or outside the acidic aqueous solution, and moreover contacting the core particle with the acidic aqueous solution under an inert gas atmosphere.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: March 21, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hajime Murata, Tomoyuki Nagai, Yu Morimoto, Toshihiro Ikai
  • Publication number: 20130319871
    Abstract: A method of producing a displacement plating precursor, including a deposition step of depositing a Cu layer on a surface of a core particle formed of Pt or a Pt alloy by contacting a Cu ion-containing acidic aqueous solution with at least a portion of a Cu electrode, and contacting the Cu electrode with the core particle or with a composite, in which the core particle is supported on an electroconductive support, within the acidic aqueous solution or outside the acidic aqueous solution, and moreover contacting the core particle with the acidic aqueous solution under an inert gas atmosphere.
    Type: Application
    Filed: February 13, 2012
    Publication date: December 5, 2013
    Inventors: Hajime Murata, Tomoyuki Nagai, Yu Morimoto, Toshihiro Ikai
  • Patent number: 8341906
    Abstract: The present invention provides a monopole tower having a tower supporting structure in which the outer dimension of a tower shell is the maximum dimension by eliminating a base plate which extends toward the outside of the tower shell. In a monopole tower provided upright on a foundation B, a lower end side of the tower 2 comprised a tower-side coupling member in a range equal to or less than outside diameter of a tower shell 21. In a space comprising a foundation-side coupling member provided on the foundation B, the foundation-side coupling member and the tower-side coupling member are coupled by welding, a bolt using a splice plate, or a rivet.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: January 1, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hajime Murata
  • Patent number: 8322107
    Abstract: A wind turbine tower in which a horizontal force received by an upper part of the tower is dispersed to a lower part of the tower or to a base so as to reduce the load acting on a tower shell and suppress deformation of the tower caused by an external force is provided. A monotype-type wind turbine tower 2 in which mainly a tower shell 21 is configured to bear load includes a platform 22 connected to an inner wall of the tower shell 21 and dividing an internal space of the tower in the vertical direction; an elastic bearing 30 attached by fixing one end thereof to the platform 22; and a load transmission member 23 disposed in the internal space of the tower and connecting another end of the elastic bearing 30 to the platform 22 located at a position facing the elastic bearing 30 or to a base B so as to transmit a horizontal force from the elastic bearing 30 to the tower shell 21 or the base B.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: December 4, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hajime Murata
  • Patent number: 8227932
    Abstract: In a wind generator, which effectively utilizes an opening of a door opening and a shell plate, and in which an outside air-circulation flow path for introducing outside air into a cooling heat exchanger in a tower is formed, a cooling medium that cools a heating element disposed in the tower circulates through a cooling heat exchanger, and heat is absorbed by exchanging heat with outside air, an outside air-circulation flow path of a closed space having an outside-air inflow opening and an outside-air discharge opening that are in communication with a door opening of a shell plate is formed in an interior space in the tower, and the cooling heat exchanger is disposed in the outside air-circulation flow path.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: July 24, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hajime Murata, Shinsuke Sato
  • Patent number: 8209913
    Abstract: An object of the invention is to propose a tubular structure and a wind turbine generator in which work on an outer surface of the tower structure can be performed easily. A tubular structure comprises: a plurality of tubular sections 21 that are stacked one on top of another in a vertical direction, the adjacent tubular sections 21 being joined together with use of a splice plate 22 arranged on at least one of an inner surface and an outer surface of abutting ends of the adjacent tubular sections 21 and a fastening member 25 fastening the splice plate 22 and the adjacent tubular sections 21; an opening for operation 26 which is arranged in a vicinity of the splice plate 22 on a circumferential surface of the tubular sections 21; and a reinforcing rib 28 arranged in the vertical direction on the circumferential surface of the tubular sections 21, wherein a vertical position of the reinforcing rib 28 includes at least a vertical range where the opening for operation 26 is arranged.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: July 3, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hajime Murata
  • Publication number: 20120049529
    Abstract: An object of the invention is to propose a tubular structure and a wind turbine generator in which work on an outer surface of the tower structure can be performed easily. A tubular structure comprises: a plurality of tubular sections 21 that are stacked one on top of another in a vertical direction, the adjacent tubular sections 21 being joined together with use of a splice plate 22 arranged on at least one of an inner surface and an outer surface of abutting ends of the adjacent tubular sections 21 and a fastening member 25 fastening the splice plate 22 and the adjacent tubular sections 21; an opening for operation 26 which is arranged in a vicinity of the splice plate 22 on a circumferential surface of the tubular sections 21; and a reinforcing rib 28 arranged in the vertical direction on the circumferential surface of the tubular sections 21, wherein a vertical position of the reinforcing rib 28 includes at least a vertical range where the opening for operation 26 is arranged.
    Type: Application
    Filed: February 1, 2011
    Publication date: March 1, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hajime MURATA
  • Publication number: 20110298218
    Abstract: The present invention provides a wind generator which effectively utilizes an opening of a door opening and a shell plate, and in which an outside air-circulation flow path for introducing outside air into a cooling heat exchanger in a tower is formed. In the wind generator, a cooling medium that cools a heating element disposed in the tower circulates through a cooling heat exchanger, and heat is absorbed by exchanging heat with outside air, an outside air-circulation flow path of a closed space having an outside-air inflow opening and an outside-air discharge opening that are in communication with a door opening of a shell plate is formed in an interior space in the tower, and the cooling heat exchanger is disposed in the outside air-circulation flow path.
    Type: Application
    Filed: February 8, 2010
    Publication date: December 8, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hajime Murata, Shinsuke Sato
  • Publication number: 20110278850
    Abstract: The present invention provides a monopole tower having a tower supporting structure in which the outer dimension of a tower shell is the maximum dimension by eliminating a base plate which extends toward the outside of the tower shell. In a monopole tower provided upright on a foundation B, a lower end side of the tower 2 comprised a tower-side coupling member in a range equal to or less than outside diameter of a tower shell 21. In a space comprising a foundation-side coupling member provided on the foundation B, the foundation-side coupling member and the tower-side coupling member are coupled by welding, a bolt using a splice plate, or a rivet.
    Type: Application
    Filed: December 25, 2009
    Publication date: November 17, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hajime Murata
  • Publication number: 20110254277
    Abstract: A wind turbine tower in which a horizontal force received by an upper part of the tower is dispersed to a lower part of the tower or to a base so as to reduce the load acting on a tower shell and suppress deformation of the tower caused by an external force is provided. A monotype-type wind turbine tower 2 in which mainly a tower shell 21 is configured to bear load includes a platform 22 connected to an inner wall of the tower shell 21 and dividing an internal space of the tower in the vertical direction; an elastic bearing 30 attached by fixing one end thereof to the platform 22; and a load transmission member 23 disposed in the internal space of the tower and connecting another end of the elastic bearing 30 to the platform 22 located at a position facing the elastic bearing 30 or to a base B so as to transmit a horizontal force from the elastic bearing 30 to the tower shell 21 or the base B.
    Type: Application
    Filed: November 30, 2009
    Publication date: October 20, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hajime Murata
  • Patent number: 5230391
    Abstract: A weigher-conveyor has a conveyor which is for transporting an object and is supported by a weighing device such that the weight of the object on the conveyor can be measured while it is being transported. A detector is disposed near the downstream end of the conveyor and, when the presence of an object on the conveyor is detected, a control unit determines whether weight signals from the weigher are already stable. If they are stable, the conveyor continues to be driven and a weight value indicated by the stabilized weight signals is outputted. If they are still unstable, the conveyor is stopped until the weight signals stabilize. A weight value indicated by the stabilized weight signals is outputted in this situation.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: July 27, 1993
    Assignee: Ishida Scales Mfg. Co., Ltd.
    Inventors: Hajime Murata, Shinsuke Sakamoto
  • Patent number: 4791337
    Abstract: A lighting method for vacuum fluorescent display which is lighted dynamically with frequency f.sub.1 includes applying a time-varying voltage with approximate frequency of (n+1/2)f.sub.1 to the cathode of the vacuum fluorescent display, where n is a predetermined natural number.By the method described, flickering in the display is suppressed even when, in the dynamical lighting of the vacuum fluorescent display, the cathode of the vacuum fluorescent display is heated with a time-varying voltage and the lighting duty ratio is reduced.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: December 13, 1988
    Assignee: Yazaki Corporation
    Inventor: Hajime Murata
  • Patent number: 4787039
    Abstract: A display device and a method for displaying information in motor vehicles utilizes a single display for both bar graph information and emergency messages using alphanumeric characters and symbols. A dot matrix display device is arranged in close proximity to a scale indicator. A controller for the display includes means for judging whether emergency information such as disconnection of power or oil level or an incomplete closing of a door is to be displayed by symbol display or whether information such as engine speed is to be displayed by graph display. The controller then selects the appropriate display mode and displays the information in the proper format.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: November 22, 1988
    Assignee: Yazaki Corporation
    Inventor: Hajime Murata
  • Patent number: 4739226
    Abstract: A dimming circuit adjusts the light output of a lamp by controlling the current flow in the lamp that is connected to a transistor, through turning on and off the transistor with a predetermined timing which is changed by the control signal from a control signal generating circuit. The dimming circuit has a protective circuit for applying an off-state command signal to switch the transistor to the off-state by detecting an excess current flowing in the transistor when an input signal is applied as a control signal for switching the transistor to the on-state.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: April 19, 1988
    Assignee: Yazaki Corporation
    Inventor: Hajime Murata