Patents by Inventor Makoto KUMAI

Makoto KUMAI 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).

  • Power supply system
    Patent number: 10381842
    Abstract: A power supply system of an embodiment has a plurality of power conditioners, an acquisition device, and a search instruction generator. The power conditioners convert a form of electrical power generated by a plurality of electrical generators into a different form of electrical power. The acquisition device acquires a respective information regarding power output from each of the plurality of power conditioners. The search instruction generator generates and outputs an operating point search instruction to one or more power conditioners being lower in a ratio of output power with respect to a reference power by at least a prescribed degree than one or more different power conditioners, wherein the reference power is given, based on the maximum output power or rated power of the corresponding electrical generator, or based on the maximum output power or rated power of the power conditioner.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 13, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Maki, Hiroshi Mochikawa, Makoto Kumai, Hiroaki Matsumoto, Shingo Yanagimoto, Akihiro Matsui
  • POWER SUPPLY SYSTEM
    Publication number: 20180041042
    Abstract: A power supply system of an embodiment has a plurality of power conditioners, an acquisition device, and a search instruction generator. The power conditioners convert a form of electrical power generated by a plurality of electrical generators into a different form of electrical power. The acquisition device acquires a respective information regarding power output from each of the plurality of power conditioners. The search instruction generator generates and outputs an operating point search instruction to one or more power conditioners being lower in a ratio of output power with respect to a reference power by at least a prescribed degree than one or more different power conditioners, wherein the reference power is given, based on the maximum output power or rated power of the corresponding electrical generator, or based on the maximum output power or rated power of the power conditioner.
    Type: Application
    Filed: September 9, 2016
    Publication date: February 8, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Koji MAKI, Hiroshi MOCHIKAWA, Makoto KUMAI, Hiroaki MATSUMOTO, Shingo YANAGIMOTO, Akihiro MATSUI