Patents by Inventor Kiyomitsu Ogawa

Kiyomitsu Ogawa 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: 9312685
    Abstract: A hybrid industrial vehicle (1) has as a main configuration: an engine (2); a cargo handling generator motor (3) used for cargo handling; a cargo handling apparatus (4) that can be driven by power received from both the engine (2) and the cargo handling generator motor (3); and a hybrid control system (8). The hybrid control system (8) suppresses an output of the cargo handling generator motor (3) according to a temperature of the cargo handling generator motor (3) during powering of the cargo handling generator motor (3), and suppresses a regeneration amount of the cargo handling generator motor (3) according to the temperature of the cargo handling generator motor (3) during regeneration of the cargo handling generator motor (3).
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 12, 2016
    Assignee: MITSUBISHI NICHIYU FORKLIFT CO., LTD.
    Inventors: Yusuke Kinouchi, Kensuke Futahashi, Kiyomitsu Ogawa
  • Patent number: 9096212
    Abstract: In a vehicle and a method of controlling the same, a controller determines whether an idle-stop condition is satisfied or not when an engine is driven, and stops idling of the engine when it is determined that the idle-stop condition is satisfied. In addition, while the idling of the engine is stopped, when an operation order given to a fork driving cylinder by manipulation of a cargo handling lever is received, the controller starts the engine, and switches an oil pump for cargo handling of the fork driving cylinder to an on-load state before an engine revolution number reaches an idling revolution number region.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: August 4, 2015
    Assignee: MITSUBISHI NICHIYU FORKLIFT CO., LTD.
    Inventors: Kensuke Futahashi, Kiyomitsu Ogawa, Megumu Tsuruta
  • Patent number: 8960346
    Abstract: An object of the present invention is to provide a battery cooling structure of a hybrid industrial vehicle such as a hybrid forklift, the battery cooling structure being capable of sufficiently cooling a battery and also of eliminating the possibility that the battery receives heat from its peripheral devices. To achieve the object, a second cooling air flow passage (35) for battery is provided separately from a first cooling air flow passage (31) in which a radiator (32) is disposed. A battery pack 26 or a battery is disposed in the second cooling air flow passage (35). The second cooling air flow passage (35) is connected to the first cooling air flow passage (31) at a position upstream of a cooling fan (33) disposed in the first cooling air flow passage (31), so that the cooling fan (33) sucks cooling air in the first cooling air flow passage (31) and also sucks cooling air in the second cooling air flow passage (35).
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Kiyomitsu Ogawa
  • Publication number: 20140265977
    Abstract: A hybrid industrial vehicle (1) has as a main configuration: an engine (2); a cargo handling generator motor (3) used for cargo handling; a cargo handling apparatus (4) that can be driven by power received from both the engine (2) and the cargo handling generator motor (3); and a hybrid control system (8). The hybrid control system (8) suppresses an output of the cargo handling generator motor (3) according to a temperature of the cargo handling generator motor (3) during powering of the cargo handling generator motor (3), and suppresses a regeneration amount of the cargo handling generator motor (3) according to the temperature of the cargo handling generator motor (3) during regeneration of the cargo handling generator motor (3).
    Type: Application
    Filed: February 17, 2012
    Publication date: September 18, 2014
    Applicant: MITSUBISHI NICHIYU FORKLIFT CO., LTD.
    Inventors: Yusuke Kinouchi, Kensuke Futahashi, Kiyomitsu Ogawa
  • Patent number: 8573339
    Abstract: A hybrid industrial vehicle performs steering operation and the like during idling stop, without using a complicated mechanism. The hybrid industrial vehicle configured to transmit power of a first electric motor (23) and power of an engine (21) to a drive wheel (34) through a first gear train (32) comprises: a second electric motor (24) actuated when supplied with electric power from a battery (22); a first hydraulic pump (26) supplying pressure oil to a cargo handling hydraulic system; a second gear train (28) interposed among the engine and the second electric motor and the first hydraulic pump and capable of mutual power transmission among the engine, the second electric motor and the first hydraulic pump; a second hydraulic pump (27) supplying pressure oil to a steering hydraulic system; and a third electric motor (25) actuated to drive the second hydraulic pump when supplied with electric power from the battery.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: November 5, 2013
    Assignee: Mitsubishi Nichiyu Forklift Co., Ltd.
    Inventors: Kensuke Futahashi, Masataka Kawaguchi, Kiyomitsu Ogawa
  • Publication number: 20130204500
    Abstract: In a vehicle and a method of controlling the same, a controller determines whether an idle-stop condition is satisfied or not when an engine is driven, and stops idling of the engine when it is determined that the idle-stop condition is satisfied. In addition, while the idling of the engine is stopped, when an operation order given to a fork driving cylinder by manipulation of a cargo handling lever is received, the controller starts the engine, and switches an oil pump for cargo handling of the fork driving cylinder to an on-load state before an engine revolution number reaches an idling revolution number region.
    Type: Application
    Filed: October 19, 2011
    Publication date: August 8, 2013
    Applicant: MITSUBISHI NICHIYU FORKLIFT CO., LTD.
    Inventors: Kensuke Futahashi, Kiyomitsu Ogawa, Megumu Tsuruta
  • Patent number: 8297655
    Abstract: A fuel tank mounting mechanism which enhances backward visibility of an operator and performs the loading/unloading work of a fuel tank by a single motion to improve replacement workability. In the mechanism for mounting a fuel tank (30) on a counterweight (8) provided in the rear of an industrial vehicle, the front upper surface of the counterweight (8) is dented to form a recess (9) for receiving the fuel tank (30) in the width direction of the body. The recess (9) is provided with an arm (14) having a member (15) for fixing the fuel tank (30), and the arm (14) is supported rotatably for the body fixing portion through an arm rotating shaft (13) and arranged to rotate about the shaft (13) as the center of rotation to the right or left side in a vertical plane. The arm (14) hangs down from the body side when it rotates.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: October 30, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kiyomitsu Ogawa, Nobutaka Umezawa
  • Patent number: 8167078
    Abstract: An object is to provide a work vehicle whose drive portion can be downsized.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: May 1, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kensuke Futahashi, Yasutaka Fuke, Hideki Hashimoto, Masataka Kawaguchi, Kiyomitsu Ogawa, Hiroyuki Sugiura, Hiroyuki Kanazawa, Koichi Yamada
  • Patent number: 8165738
    Abstract: An industrial vehicle having a hybrid system controls a distribution of power generated by an engine and power generated by an electric motor. The vehicle includes an engine for supplying power to one of a running unit and a loading-and-unloading unit; a first motor for supplying power to one of the running unit and the loading-and-unloading unit; a second motor for supplying power to the running unit; a required-power calculating unit for calculating running power, and loading-and-unloading power; a clutch unit for controlling the power transmitted from the engine to the running unit; and a power-distribution calculating unit for selecting a destination to be supplied with power from the engine and the first motor based on the control status of the clutch unit, and for calculating a distribution of power which the engine, the first motor, and the second motor supply based on the calculating running power and loading-and-unloading power.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: April 24, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomohiro Akaki, Kensuke Futahashi, Takaharu Hiroe, Kiyomitsu Ogawa, Yoshimi Okazaki
  • Publication number: 20110147104
    Abstract: An object of the present invention is to provide a battery cooling structure of a hybrid industrial vehicle such as a hybrid forklift, the battery cooling structure being capable of sufficiently cooling a battery and also of eliminating the possibility that the battery receives heat from its peripheral devices. To achieve the object, a second cooling air flow passage (35) for battery is provided separately from a first cooling air flow passage (31) in which a radiator (32) is disposed. A battery pack 26 or a battery is disposed in the second cooling air flow passage (35). The second cooling air flow passage (35) is connected to the first cooling air flow passage (31) at a position upstream of a cooling fan (33) disposed in the first cooling air flow passage (31), so that the cooling fan (33) sucks cooling air in the first cooling air flow passage (31) and also sucks cooling air in the second cooling air flow passage (35).
    Type: Application
    Filed: August 13, 2009
    Publication date: June 23, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Kiyomitsu Ogawa
  • Publication number: 20110151314
    Abstract: An object of the present invention is to provide a battery pack structure having a structure to cool batteries and being capable of preventing cooling wind from hitting electrodes of the batteries.
    Type: Application
    Filed: August 13, 2009
    Publication date: June 23, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Kiyomitsu Ogawa
  • Publication number: 20110056755
    Abstract: An object of the present invention is to provide a hybrid industrial vehicle which can perform steering operation and the like during idling stop, without using a complicated mechanism.
    Type: Application
    Filed: August 5, 2008
    Publication date: March 10, 2011
    Inventors: Kensuke Futahashi, Masataka Kawaguchi, Kiyomitsu Ogawa
  • Publication number: 20100283232
    Abstract: A fuel tank mounting mechanism which can enhance backward visibility of an operator and can perform the loading/unloading work of a fuel tank by a single motion to improve the replacement workability. An industrial vehicle equipped with that mounting mechanism is also provided. In the mechanism for mounting a fuel tank (30) on a counterweight (8) provided in the rear of an industrial vehicle, the front upper surface of the counterweight (8) is dented to form a recess (9) for receiving the fuel tank (30) in the width direction of the body. The recess (9) is provided with an arm (14) having a member (15) for fixing the fuel tank (30), and the arm (14) is supported rotatably for the body fixing portion through an arm rotating shaft (13) and arranged to rotate about the arm rotating shaft (13) as the center of rotation to the right or left side in a vertical plane. The arm (14) hangs down in the body flak side when it rotates.
    Type: Application
    Filed: August 29, 2008
    Publication date: November 11, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kiyomitsu Ogawa, Nobutaka Umezawa
  • Publication number: 20090025990
    Abstract: An object is to provide a work vehicle whose drive portion can be downsized.
    Type: Application
    Filed: May 16, 2007
    Publication date: January 29, 2009
    Inventors: Kensuke Futahashi, Yasutaka Fuke, Hideki Hashimoto, Masataka Kawaguchi, Kiyomitsu Ogawa, Hiroyuki Sugiura, Hiroyuki Kanazawa, Koichi Yamada
  • Publication number: 20080133077
    Abstract: The present invention provides an industrial vehicle having a hybrid system capable of readily controlling a distribution of power generated by an engine and power generated by an electric motor, and a method of controlling; the power of the same.
    Type: Application
    Filed: October 29, 2007
    Publication date: June 5, 2008
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomohiro Akaki, Kensuke Futahashi, Takaharu Hiroe, Kiyomitsu Ogawa, Yoshimi Okazaki
  • Publication number: 20030050818
    Abstract: A production reservation system is provided with an estimate supporting system and a generating part of a production reservation calendar. A sales department inputs order information in the estimate supporting system. A production time period in a production department is reserved in the generating part of the production reservation calendar in response to the order information entered in the estimate supporting system. The generating part of the production reservation calendar contains a delivery appointed date calendar and a manufacture date calendar. While using order data of an order information system which stores thereinto a change in order information, the production reservation system reserves and confirms a manufacture time period of a production line at an earlier stage.
    Type: Application
    Filed: March 6, 2002
    Publication date: March 13, 2003
    Inventors: Tomoko Maie, Kiyomitsu Ogawa, Hiroshi Miyamoto
  • Patent number: D565825
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: April 1, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Naoki Shibata, Kiyomitsu Ogawa