Patents by Inventor Tetsuya Kashiwagi

Tetsuya Kashiwagi 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: 10333300
    Abstract: A power distribution management apparatus includes an electrical connection storage unit, a search unit, and an output unit. The electrical connection storage unit is configured to store electrical connection information in which a combination of a plurality of junctions that describes which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated. The search unit is configured to search a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information stored in the electrical connection storage unit. The output unit is configured to output facility information obtained from the combination where the investigation is performed and a result of the search after the investigation and the search are performed.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 25, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji, Sari Kawashima
  • Patent number: 10267830
    Abstract: A facility selection supporting device calculates a total current value of consumers located in and after a certain power supply section on the way from a distribution substation to a particular consumer and outputs a recommended distribution facility for the power supply section based on the calculated total current value.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 23, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Patent number: 10211633
    Abstract: A power distribution management apparatus includes: a memory configured to store history information including a pattern of open and closed states of switches that switch a path that supplies power between a substation and load equipment of a customer, and attribute information related to an environment where the power is supplied; and a processor configured to execute a process. The process includes: upon acceptance of specification of the attribute information related to the environment, calculating a degree of similarity between the specified attribute information and attribute information included in the history information; and extracting a pattern of the open and closed states of switches whose degree of similarity satisfies a predetermined condition among the history information.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 19, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Patent number: 10152073
    Abstract: A power distribution management apparatus includes an acquisition unit and a detection unit. The acquisition unit is configured to acquire predetermined data at a predetermined interval from meters classified into a predetermined group, the data containing power consumption. The detection unit is configured to detect, as an abnormal place, a facility of a power distribution system associated with the group when the predetermined data is not acquired within the predetermined interval from the respective meters included in the group.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 11, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji, Sari Kawashima
  • Patent number: 10140635
    Abstract: A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an electrical circuit including the power source facility, the distribution facilities, and the power consumption facilities connected to one another to form the electrical circuit. A second calculating unit calculates the amount of power loss in each distribution facility based on the calculated load current of each distribution facility.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 27, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Publication number: 20180225730
    Abstract: A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an electrical circuit including the power source facility, the distribution facilities, and the power consumption facilities connected to one another to form the electrical circuit. A second calculating unit calculates the amount of power loss in each distribution facility based on the calculated load current of each distribution facility.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji
  • Patent number: 10014684
    Abstract: A power distribution management apparatus (10) stores electrical connection information in which a combination of a plurality of junctions at which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated, and searches a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information, and acquires a display scale for displaying the power distribution system, and displays a facility having a junction near a substation from a predetermined facility among the facilities obtained as a result of the searching when the scale is equal to or less than a predetermined scale, and displays a facility obtained as a result of the searching when the scale is larger than the predetermined scale.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 3, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Patent number: 9965781
    Abstract: A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an electrical circuit including the power source facility, the distribution facilities, and the power consumption facilities connected to one another to form the electrical circuit. A second calculating unit calculates the amount of power loss in each distribution facility based on the calculated load current of each distribution facility.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 8, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Patent number: 9835659
    Abstract: A power distribution management apparatus (10) includes acquiring the amount of demand obtained by forecasting the amount of power to be used by load equipment of a customer, and the amount of power generation obtained by forecasting the amount of power to be generated by power generation equipment of the customer, and setting a plurality of voltage values as a plurality of candidates for a transmission voltage from a substation of a power distribution system, and calculating a voltage at a connection point of the load equipment of the customer and equipment of the power distribution system at each of the plurality of candidates by utilizing a difference between the demand amount and the power generation amount of each customer, and determining the transmission voltage of the substation from the plurality of candidates based on a result of the calculating.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 5, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Patent number: 9678121
    Abstract: A power distribution management apparatus (10) includes acquiring a measurement result from a meter connected to a customer's load facility which receives a distributed power from a power distribution system, and using different display representation to display a facility where electricity flows from the load facility toward the facility of the power distribution system among facilities of the power distribution system to be distinguished from a facility where electricity flows from the facility of the power distribution system toward the load facility utilizing the measurement result of the meter.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 13, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Kashiwagi, Yuichi Matsufuji
  • Publication number: 20150212124
    Abstract: A power distribution management apparatus (10) includes acquiring a measurement result from a meter connected to a customer's load facility which receives a distributed power from a power distribution system, and using different display representation to display a facility where electricity flows from the load facility toward the facility of the power distribution system among facilities of the power distribution system to be distinguished from a facility where electricity flows from the facility of the power distribution system toward the load facility utilizing the measurement result of the meter.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 30, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi MATSUFUJI
  • Publication number: 20150207320
    Abstract: A power distribution management apparatus (10) stores electrical connection information in which a combination of a plurality of junctions at which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated, and searches a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information, and acquires a display scale for displaying the power distribution system, and displays a facility having a junction near a substation from a predetermined facility among the facilities obtained as a result of the searching when the scale is equal to or less than a predetermined scale, and displays a facility obtained as a result of the searching when the scale is larger than the predetermined scale.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 23, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji
  • Publication number: 20150207321
    Abstract: A power distribution management apparatus includes: a memory configured to store history information including a pattern of open and closed states of switches that switch a path that supplies power between a substation and load equipment of a customer, and attribute information related to an environment where the power is supplied; and a processor configured to execute a process. The process includes: upon acceptance of specification of the attribute information related to the environment, calculating a degree of similarity between the specified attribute information and attribute information included in the history information; and extracting a pattern of the open and closed states of switches whose degree of similarity satisfies a predetermined condition among the history information.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 23, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji
  • Publication number: 20150205317
    Abstract: A power distribution management apparatus includes an acquisition unit and a detection unit. The acquisition unit is configured to acquire predetermined data at a predetermined interval from meters classified into a predetermined group, the data containing power consumption. The detection unit is configured to detect, as an abnormal place, a facility of a power distribution system associated with the group when the predetermined data is not acquired within the predetermined interval from the respective meters included in the group.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi MATSUFUJI, Sari KAWASHIMA
  • Publication number: 20150204921
    Abstract: A power distribution management apparatus (10) includes acquiring the amount of demand obtained by forecasting the amount of power to be used by load equipment of a customer, and the amount of power generation obtained by forecasting the amount of power to be generated by power generation equipment of the customer, and setting a plurality of voltage values as a plurality of candidates for a transmission voltage from a substation of a power distribution system, and calculating a voltage at a connection point of the load equipment of the customer and equipment of the power distribution system at each of the plurality of candidates by utilizing a difference between the demand amount and the power generation amount of each customer, and determining the transmission voltage of the substation from the plurality of candidates based on a result of the calculating.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi MATSUFUJI
  • Publication number: 20150200542
    Abstract: A power distribution management apparatus includes an electrical connection storage unit, a search unit, and an output unit. The electrical connection storage unit is configured to store electrical connection information in which a combination of a plurality of junctions that describes which a plurality of facilities of a power distribution system are electrically connected to each other and a facility determined based on the combination are associated. The search unit is configured to search a facility corresponding to the combination while investigating an uninvestigated junction among the plurality of junctions contained in the combination starting from a predetermined junction with reference to the electrical connection information stored in the electrical connection storage unit. The output unit is configured to output facility information obtained from the combination where the investigation is performed and a result of the search after the investigation and the search are performed.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi MATSUFUJI, Sari KAWASHIMA
  • Publication number: 20150120227
    Abstract: A facility selection supporting device calculates a total current value of consumers located in and after a certain power supply section on the way from a distribution substation to a particular consumer and outputs a recommended distribution facility for the power supply section based on the calculated total current value.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 30, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji
  • Publication number: 20150097574
    Abstract: A non-transitory computer-readable recording medium stores therein a program that causes a computer to execute a phase determining process. The phase determining process includes: transmitting electricity to a consumer via a power distribution line branched from a power distribution line using a three-phase three-wire system; identifying a time change pattern of a highest correlation with a time change pattern of power consumption, voltage, or current at the consumer out of time change patterns of power consumption, voltage, or current of respective phases of a high-voltage power distribution line using the three-phase three-wire system; and determining a phase corresponding to the identified time change pattern to be a phase at a time of branching the power distribution line to the consumer.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 9, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji
  • Publication number: 20150100256
    Abstract: A non-transitory computer-readable recording medium has stored therein a program that causes a computer to execute an imbalance determining process. The imbalance determining process includes: analyzing fluctuation situations of voltage values of respective phases in a power distribution line using a three-phase three-wire system; determining whether a location at which degree of divergence in voltage values among the phases exceeds a predetermined criterion is present; and outputting a result of the determining.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 9, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi MATSUFUJI
  • Publication number: 20150066403
    Abstract: A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an electrical circuit including the power source facility, the distribution facilities, and the power consumption facilities connected to one another to form the electrical circuit. A second calculating unit calculates the amount of power loss in each distribution facility based on the calculated load current of each distribution facility.
    Type: Application
    Filed: July 15, 2014
    Publication date: March 5, 2015
    Inventors: Tetsuya KASHIWAGI, Yuichi Matsufuji