Patents by Inventor Katsutoshi Murawaka

Katsutoshi Murawaka 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: 9160193
    Abstract: An electricity charging system includes: a charger portion that charges a storage battery; a detection portion that detects an amount of charge stored in the storage battery; and a control portion that controls electric power that is supplied to charge the storage battery by the charger portion so that the electric power changes by a predetermined rule, according to the amount of stored electricity detected by the detection portion.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 13, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromi Tonegawa, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii, Katsutoshi Murawaka
  • Patent number: 9041348
    Abstract: An electric power supply system includes a connecting device that connects a secondary battery provided in a vehicle to a building, and a control apparatus that i) identifies the type of the vehicle that is connected to the connecting device, the type of the secondary battery, or the type of electric power that is distinguishable by the charging source of the electric power stored in the secondary battery, ii) determines a preset electric power supply method based on the identification results, and iii) controls a supply of electric power from the secondary battery to the building based on the determined electric power supply method.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: May 26, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Katsutoshi Murawaka
  • Patent number: 9035615
    Abstract: An energy management system has an integration control portion that performs control to charge a storage battery with a power of such an amount that a power consumption including a power supplied by a supply portion is equal to or smaller than a target value indicated by power consumption target information recorded in a recording portion when a power consumption detected by a detection portion is smaller than the target value, and to supply a building with a power with which the storage battery is charged such that the power consumption including the power supplied by the supply portion coincides in amount with a power equal to or smaller than the target value indicated by the power consumption target information recorded in the recording portion when the power consumption detected by the detection portion is larger than the target value.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: May 19, 2015
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA HOUSING CORPORATION
    Inventors: Hiromi Tonegawa, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii, Katsutoshi Murawaka
  • Patent number: 9000730
    Abstract: A user inputs a travel distance after last charging of a storage battery of a vehicle into an input field. A capacity of the storage battery at a current charge starting point in time is estimated from a capacity of the storage battery at a last charge ending point in time stored at the last charging and the input travel distance. The estimated capacity of the storage battery is displayed in a display field. During charging of the storage battery, detecting charge current and voltage to estimate a current capacity of the storage battery during charging, a remaining charging period of time and a distance-to-empty by the current capacity and displaying the estimated current capacity, remaining charging period of time and distance-to-empty in display fields are repeated.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: April 7, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Housing Corporation
    Inventor: Katsutoshi Murawaka
  • Patent number: 8909390
    Abstract: A charging start time and preliminary air conditioning time are calculated based on the departure time that is set with a control/operation device (S108), and the charging time and preliminary air conditioning time are set (S110). Then, a control is executed to start charging when at the charging start time (S112 to 116) and preliminary air conditioning may be started when the amount of charge is sufficient for preliminary air conditioning and a preliminary air conditioning starting trigger is detected, that is locking or preparation for leaving house is detected, for example (S118 to 128).
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 9, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Hiromi Tonegawa, Katsutoshi Murawaka, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii
  • Publication number: 20130187613
    Abstract: An energy management system has an integration control portion that performs control to charge a storage battery with a power of such an amount that a power consumption including a power supplied by a supply portion is equal to or smaller than a target value indicated by power consumption target information recorded in a recording portion when a power consumption detected by a detection portion is smaller than the target value, and to supply a building with a power with which the storage battery is charged such that the power consumption including the power supplied by the supply portion coincides in amount with a power equal to or smaller than the target value indicated by the power consumption target information recorded in the recording portion when the power consumption detected by the detection portion is larger than the target value.
    Type: Application
    Filed: July 26, 2011
    Publication date: July 25, 2013
    Applicants: TOYOTA HOUSING CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromi Tonegawa, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii, Katsutoshi Murawaka
  • Publication number: 20130169233
    Abstract: Use start date-and-time is input by use of U1. Times T1 and T2 to achieve SOC 1 and SOC 2 are set. Charging is started at T2 and is continued until it is determined that SOC 2 is achieved. Thereafter, charging is started at T1 and continued until it is determined that SOC 1 is achieved by the input use start date-and-time.
    Type: Application
    Filed: August 4, 2011
    Publication date: July 4, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA HOUSING CORPORATION, DENSO CORPORATION
    Inventors: Hiromi Tonegawa, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii, Katsutoshi Murawaka
  • Publication number: 20130141054
    Abstract: An electricity charging system includes: a charger portion that charges a storage battery; a detection portion that detects an amount of charge stored in the storage battery; and a control portion that controls electric power that is supplied to charge the storage battery by the charger portion so that the electric power changes by a predetermined rule, according to the amount of stored electricity detected by the detection portion.
    Type: Application
    Filed: July 11, 2011
    Publication date: June 6, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromi Tonegawa, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii, Katsutoshi Murawaka
  • Publication number: 20130096734
    Abstract: A charging start time and preliminary air conditioning time are calculated based on the departure time that is set with a control/operation device, and the charging time and preliminary air conditioning time are set. Then, a control is executed to start charging when at the charging start time and preliminary air conditioning may be started when the amount of charge is sufficient for preliminary air conditioning and a preliminary air conditioning starting trigger is detected, that is locking or preparation for leaving house is detected, for example.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 18, 2013
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromi Tonegawa, Katsutoshi Murawaka, Tetsuhiro Ishikawa, Shinji Ichikawa, Daisuke Ishii
  • Publication number: 20120293122
    Abstract: A user inputs a travel distance after last charging of a storage battery of a vehicle into an input field. A capacity of the storage battery at a current charge starting point in time is estimated from a capacity of the storage battery at a last charge ending point in time stored at the last charging and the input travel distance. The estimated capacity of the storage battery is displayed in a display field. During charging of the storage battery, detecting charge current and voltage to estimate a current capacity of the storage battery during charging, a remaining charging period of time and a distance-to-empty by the current capacity and displaying the estimated current capacity, remaining charging period of time and distance-to-empty in display fields are repeated.
    Type: Application
    Filed: December 14, 2010
    Publication date: November 22, 2012
    Applicants: TOYOTA HOUSING CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Katsutoshi Murawaka
  • Publication number: 20120187900
    Abstract: An electric power supply system includes a connecting device that connects a secondary battery provided in a vehicle to a building, and a control apparatus that i) identifies the type of the vehicle that is connected to the connecting device, the type of the secondary battery, or the type of electric power that is distinguishable by the charging source of the electric power stored in the secondary battery, ii) determines a preset electric power supply method based on the identification results, and iii) controls a supply of electric power from the secondary battery to the building based on the determined electric power supply method.
    Type: Application
    Filed: August 30, 2010
    Publication date: July 26, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Katsutoshi Murawaka