Patents by Inventor Yoshito Nishita

Yoshito Nishita 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: 11954744
    Abstract: The actual performance information classify part derives a classification result of an actual performance information on electric power demand, by a classification setting information, from an environment information and a date attribute information which is correlated with each of the electric power demands which is included in an actual performance information on electric power demand. The prediction information calculate part derives a classification result of a prediction target day, using the date attribute information of the prediction target day, which is a day to conduct a prediction, and the environment information which is measured before a start of the prediction of a prediction target day, and in addition, predicts an electric power demand of a prediction target day, based on the electric power demand of the actual performance information on electric power demand, which corresponds to the classification result of the prediction target day.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yosuke Hirata, Yuta Okumura, Yoshito Nishita
  • Publication number: 20230246444
    Abstract: It is intended to reduce errors related to an energy supply plan to be formulated. An energy supply plan formulation device includes an acquisition unit for acquiring a change of a base load of energy equipment, a determination unit for determining whether to need correction of at least one of an equipment model and a load model on the basis of the change of the base load, a correction unit for correcting at least one of the equipment model and the load model on the basis of a determination result, a demand forecasting unit for forecasting the amount of energy demand, and a supply plan formulation unit for formulating an energy supply plan on the basis of the equipment model and the amount of energy demand.
    Type: Application
    Filed: July 15, 2020
    Publication date: August 3, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki MORI, Hiroshi MAITANI, Yoshito NISHITA
  • Publication number: 20230139438
    Abstract: In creating a charging plan for an electric vehicle, calculation amount becomes enormous as the number of electric vehicles increases, leading to a problem of increasing the resources required for calculation. To solve this problem, the present disclosure includes a grouping unit configured to group a plurality of electric vehicles into an electric vehicle cluster based on a classification rule, a total charging power determination unit configured to determine total charging power of the electric vehicle cluster for each group for each time based on the restriction condition, and an individual charging power determination unit configured to determine individual charging power for each of the electric vehicles for each time based on the total charging power.
    Type: Application
    Filed: April 6, 2020
    Publication date: May 4, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yoshito NISHITA
  • Publication number: 20220129998
    Abstract: The actual performance information classify part derives a classification result of an actual performance information on electric power demand, by a classification setting information, from an environment information and a date attribute information which is correlated with each of the electric power demands which is included in an actual performance information on electric power demand. The prediction information calculate part derives a classification result of a prediction target day, using the date attribute information of the prediction target day, which is a day to conduct a prediction, and the environment information which is measured before a start of the prediction of a prediction target day, and in addition, predicts an electric power demand of a prediction target day, based on the electric power demand of the actual performance information on electric power demand, which corresponds to the classification result of the prediction target day.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 28, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yosuke HIRATA, Yuta OKUMURA, Yoshito NISHITA
  • Publication number: 20220048399
    Abstract: To create a charging/discharging plan when a vehicle including a storage battery is chargeable/dischargeable at a plurality of facilities. An energy management system includes a schedule management unit configured to manage a schedule for moving from a first facility to a second facility, and a charging/discharging plan creation unit configured to create a first charging/discharging plan being a charging/discharging plan for a storage battery in each of the first facility and the second facility, in which the charging/discharging plan creation unit is configured to create the first charging/discharging plan with which the storage battery discharges at the first facility while leaving moving power being power for the vehicle to move from the first facility to the second facility.
    Type: Application
    Filed: February 4, 2019
    Publication date: February 17, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshito NISHITA, Satoko SAKAJO
  • Patent number: 10389119
    Abstract: An energy management system in an electricity customer possessing a distributed power supply includes a wheeling request generator that generates a wheeling request including a wheeling request amount, a wheeling necessity determiner that calculates a wheeling necessity value, a transmitter-receiver that sends the wheeling request amount and the wheeling necessity value to another energy management system, a wheeling negotiation partner determiner that determines at least one wheeling negotiation partner on the basis of wheeling necessity values received, a wheeling response determiner that calculates a wheeling capacity value for the at least one negotiation partner on the basis of the wheeling request amount received, and sends the wheeling capacity value via the transmitter-receiver, and a wheeling plan determiner that determines a wheeling plan on the basis of the wheeling capacity value received and on the basis of the wheeling request amount of that customer itself.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 20, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshito Nishita
  • Publication number: 20190079566
    Abstract: An energy management system in an electricity customer possessing a distributed power supply includes a wheeling request generator that generates a wheeling request including a wheeling request amount, a wheeling necessity determiner that calculates a wheeling necessity value, a transmitter-receiver that sends the wheeling request amount and the wheeling necessity value to another energy management system, a wheeling negotiation partner determiner that determines at least one wheeling negotiation partner on the basis of wheeling necessity values received, a wheeling response determiner that calculates a wheeling capacity value for the at least one negotiation partner on the basis of the wheeling request amount received, and sends the wheeling capacity value via the transmitter-receiver, and a wheeling plan determiner that determines a wheeling plan on the basis of the wheeling capacity value received and on the basis of the wheeling request amount of that customer itself.
    Type: Application
    Filed: April 18, 2017
    Publication date: March 14, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yoshito NISHITA
  • Patent number: 10120403
    Abstract: A region information management unit of an energy management system manages at least part of information about a plurality of small regions that each partially include a plurality of power consumers. Each of the plurality of small regions partially overlaps at least any of the other small regions of the plurality of small regions. The region information management unit manages information about at least one belonging region of the plurality of small regions. The one power consumer belongs to the at least one belonging region. The region information management unit manages information specifying, in addition to the one power consumer, at least one other power consumer of the plurality of power consumers. The other power consumer belongs to the at least one belonging region.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: November 6, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yoshito Nishita
  • Patent number: 9707856
    Abstract: A vehicle power management device managing: a vehicle path information generation device generating a vehicle travel path; a drive assembly consuming power to drive the vehicle; a power generator; an electrical load device group; a high-voltage storage device storing power for driving the vehicle; a low-voltage storage device storing power for operating the electrical load device group; and a DC voltage conversion and output device converting voltage of power stored in the high-voltage storage device to generate DC voltage for operating the electrical load device group, and outputting the DC voltage, and controlling electric energy flow in the vehicle. The vehicle power management device controls output of the DC voltage conversion and output device so that a filling rate of the low-voltage storage device is between lower and upper limits of a range in which a charge and discharge speed is equal to or higher than a predetermined value.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: July 18, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Igarashi, Katsuya Kawai, Yukio Goto, Masahiko Tanimoto, Yoshito Nishita, Kazushi Shirasawa, Takanori Matsunaga, Akinobu Sugiyama
  • Publication number: 20170045904
    Abstract: A region information management unit of an energy management system manages at least part of information about a plurality of small regions that each partially include a plurality of power consumers. Each of the plurality of small regions partially overlaps at least any of the other small regions of the plurality of small regions. The region information management unit manages information about at least one belonging region of the plurality of small regions. The one power consumer belongs to the at least one belonging region. The region information management unit manages information specifying, in addition to the one power consumer, at least one other power consumer of the plurality of power consumers. The other power consumer belongs to the at least one belonging region.
    Type: Application
    Filed: December 26, 2014
    Publication date: February 16, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yoshito NISHITA
  • Patent number: 9358896
    Abstract: An energy management system that achieves minimization of electric power costs and leveling of an electric power demand while securing necessary battery residual quantity. The energy management system includes a charging stand that supplies electric power to an electric vehicle (EV) as an electric power supply part, a reservation information acquisition unit that acquires reservation information on electric power reception of the EV in the charging stand before the EV arrives at the charging stand, a charging plan preparation unit that predicts an electric power demand in the charging stand and prepares a charging plan for the EV based on the reservation information, and a charging controller that controls electric power supply for the EV in the charging stand based on the charging plan.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 7, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshito Nishita, Masahiko Tanimoto, Nanaho Osawa
  • Publication number: 20160016484
    Abstract: A vehicle power management device managing: a vehicle path information generation device generating a vehicle travel path: a drive assembly consuming power to drive the vehicle; a power generator; an electrical load device group; a high-voltage storage device storing power for driving the vehicle; a low-voltage storage device storing power for operating the electrical load device group; and a DC voltage conversion and output device converting voltage of power stored in the high-voltage storage device to generate DC voltage for operating the electrical load device group, and outputting the DC voltage, and controlling electric energy flow in the vehicle. The vehicle power management device controls output of the DC voltage conversion and output device so that a filling rate of the low-voltage storage device is between lower and upper limits of a range in which a charge and discharge speed is equal to or higher than a predetermined value.
    Type: Application
    Filed: November 8, 2013
    Publication date: January 21, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IGARASHI, Katsuya KAWAI, Yukio GOTO, Masahiko TANIMOTO, Yoshito NISHITA, Kazushi SHIRASAWA, Takanori MATSUNAGA, Akinobu SUGIYAMA
  • Publication number: 20140361745
    Abstract: An energy management system that achieves minimization of electric power costs and leveling of an electric power demand while securing necessary battery residual quantity. The energy management system includes a charging stand that supplies electric power to an electric vehicle (EV) as an electric power supply part, a reservation information acquisition unit that acquires reservation information on electric power reception of the EV in the charging stand before the EV arrives at the charging stand, a charging plan preparation unit that predicts an electric power demand in the charging stand and prepares a charging plan for the EV based on the reservation information, and a charging controller that controls electric power supply for the EV in the charging stand based on the charging plan.
    Type: Application
    Filed: December 6, 2012
    Publication date: December 11, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshito Nishita, Masahiko Tanimoto, Nanaho Osawa