Patents by Inventor Yoshinori Sunahata

Yoshinori Sunahata 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: 9627907
    Abstract: The present disclosure relates to a storage battery control device that can exert better performance in a configuration in which a plurality of storage batteries are connected, a storage battery control method, a program, an electricity storage system, and a power supply system. A charge order table previously set according to a state of charge and a charge/discharge frequency of a storage battery that stores power is referred to, and based on the states of charge and the charge/discharge frequencies acquired from the storage battery provided in plural, a discharge order based on which discharge is preferentially performed with respect to the plurality of storage batteries is decided. In order to supply necessary power necessary to be output upon a request from a load, discharge power output from each of the plurality of storage batteries is set based on the decided discharge order.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 18, 2017
    Assignee: OMRON CORPORATION
    Inventors: Makoto Ohashi, Takeo Nishikawa, Yoshinori Sunahata, Junichiro Yamada, Wataru Okada
  • Patent number: 9337682
    Abstract: The present disclosure relates to a charging control device, a solar power generation system and a charging control method which allow more efficient charging. The charging control device includes: a charging converter which takes electric power out of a solar panel and converts the electric power to a voltage required for charging a storage battery; and a controlling CPU which adjusts an output voltage that is outputted from the charging converter. The charging converter takes electric power out of the solar panel at two operation points where the electric power can be taken out of the solar panel with a certain output voltage, and charges the storage battery. The controlling CPU adjusts the output voltage in accordance with a voltage difference between input voltages respectively corresponding to the two operation points. The present technique is applicable, for example, to the charging control device of the solar power generation system.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 10, 2016
    Assignee: OMRON CORPORATION
    Inventors: Takeo Nishikawa, Wataru Okada, Junichiro Yamada, Makoto Ohashi, Yoshinori Sunahata
  • Publication number: 20150015179
    Abstract: The present disclosure relates to a charge power control apparatus, a charge power control method, a program, and a solar power generation system, for improving charge efficiency. A solar power generation system includes a solar panel that receives sunlight to generate power, a PV power conditioner that performs DC/AC conversion of the power generated by the solar panel, and a charging AC/DC converter that performs AC/DC conversion of power output from the PV power conditioner and charges a storage battery. Voltage of the power supplied to the PV power conditioner from the solar panel is acquired while the power supplied from a power system is stopped, and a change in power supplied to the PV power conditioner from the solar panel is obtained according to the voltage. Charge power that is output from the charging AC/DC converter to charge the storage battery is adjusted based on the change in voltage.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 15, 2015
    Applicant: OMRON CORPORATION
    Inventors: Junichiro Yamada, Wataru Okada, Takeo Nishikawa, Makoto Ohashi, Yoshinori Sunahata
  • Publication number: 20150002102
    Abstract: The present disclosure relates to a storage battery control device that can exert better performance in a configuration in which a plurality of storage batteries are connected, a storage battery control method, a program, an electricity storage system, and a power supply system. A charge order table previously set according to a state of charge and a charge/discharge frequency of a storage battery that stores power is referred to, and based on the states of charge and the charge/discharge frequencies acquired from the storage battery provided in plural, a discharge order based on which discharge is preferentially performed with respect to the plurality of storage batteries is decided. In order to supply necessary power necessary to be output upon a request from a load, discharge power output from each of the plurality of storage batteries is set based on the decided discharge order.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 1, 2015
    Applicant: OMRON CORPORATION
    Inventors: Makoto Ohashi, Takeo Nishikawa, Yoshinori Sunahata, Junichiro Yamada, Wataru Okada
  • Publication number: 20140361725
    Abstract: The present disclosure relates to a power storage control device, a power storage control device control method, a program and a power storage system which can enhance reliability more. The power storage control device has: an AC/DC converter which converts power supplied from a power system; a DC/DC converter which converts power outputted from a storage battery which stores power; and a control unit which is driven by the power outputted from the AC/DC converter and the power outputted from the DC/DC converter, and controls charging and discharging of the storage battery. Further, in the power storage control device, a voltage value of the power outputted from the AC/DC converter is set higher than a voltage value of the power outputted from the DC/DC converter. The present technology is applicable to, for example, a power storage system.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 11, 2014
    Applicant: OMRON CORPORATION
    Inventors: Takeo Nishikawa, Wataru Okada, Junichiro Yamada, Makoto Ohashi, Yoshinori Sunahata
  • Publication number: 20140361732
    Abstract: A storage battery control device includes a storage battery control method, a program, a power storage system and a power supply system which can fulfill better performance with a configuration where a plurality of storage batteries are connected. A storage battery to be charged is determined based on the states of charge and the numbers of times of charge/discharge obtained from the plurality of storage batteries referring to a charge order table to which an order to charge storage batteries is set according to states of charge and numbers of times of charge and discharge of storage batteries to be charged with power. The order to charge the storage batteries is preferentially set to a row of cells whose numbers of times of charge and discharge are small and is preferentially set to cells of each row whose states of charge are low in the charge order table.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 11, 2014
    Applicant: OMRON CORPORATION
    Inventors: Takeo Nishikawa, Yoshinori Sunahata, Junichiro Yamada, Wataru Okada, Makoto Ohashi
  • Publication number: 20140253014
    Abstract: The present disclosure relates to a charging control device, a solar power generation system and a charging control method which allow more efficient charging. The charging control device includes: a charging converter which takes electric power out of a solar panel and converts the electric power to a voltage required for charging a storage battery; and a controlling CPU which adjusts an output voltage that is outputted from the charging converter. The charging converter takes electric power out of the solar panel at two operation points where the electric power can be taken out of the solar panel with a certain output voltage, and charges the storage battery. The controlling CPU adjusts the output voltage in accordance with a voltage difference between input voltages respectively corresponding to the two operation points. The present technique is applicable, for example, to the charging control device of the solar power generation system.
    Type: Application
    Filed: November 20, 2012
    Publication date: September 11, 2014
    Applicant: OMRON CORPORATION
    Inventors: Takeo Nishikawa, Wataru Okada, Junichiro Yamada, Makoto Ohashi, Yoshinori Sunahata