Patents by Inventor Masahiro Kuwabara

Masahiro Kuwabara 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).

  • Publication number: 20210005917
    Abstract: A cell that includes a positive electrode, a negative electrode and a membrane interposed between the electrodes, and that is used in a redox flow battery, wherein the membrane includes an ion permeable portion that is permeable to hydrogen ions, at least at a center of the membrane in a plan view, planar areas of the positive electrode and the negative electrode are both 250 cm2 or more, and a planar area of the ion permeable portion is smaller than each of the planar areas of the positive electrode and the negative electrode, and, in the ion permeable portion, a planar area of a facing portion that actually faces the positive electrode and the negative electrode is 50% or more and 99.9% or less of a smaller of the planar areas of the positive electrode and the negative electrode.
    Type: Application
    Filed: March 9, 2018
    Publication date: January 7, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Michiru KUBATA, Masahiro KUWABARA
  • Patent number: 10848343
    Abstract: In a communication device, a communicator communicates with a communication counterpart using a first communication mode or a second communication mode. When a communication by the communicator with the communication counterpart using the second communication mode is reset due to a first cause, if the communication with the communication counterpart using the second communication mode is acceptable, a communication controller causes the communicator to resume communication with the communication counterpart using the second communication mode, and if the communication with the communication counterpart using the second communication mode is unacceptable, the communication controller causes the communicator to start a communication with the communication counterpart using the first communication mode.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 24, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroaki Endo, Masahiro Ishihara, Yohei Miyaura, Yoshiro Murakami, Yasushi Kuwabara
  • Patent number: 10818939
    Abstract: Provided is a redox flow battery in which damage is unlikely to occur in a membrane. A redox flow battery includes a pair of adjacent cell frames, each cell frame including a frame body in which a flow channel for an electrolyte is formed, and a bipolar plate disposed inside the frame body; a positive electrode and a negative electrode disposed so as to face each other between the bipolar plates of the pair of cell frames; a membrane interposed between the positive electrode and the negative electrode; a protection plate which covers the flow channel and presses edge portions of the positive electrode or the negative electrode toward the bipolar plate; and a membrane protection structure which prevents the membrane from being broken by contact between the protection plate and the membrane.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 27, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kosuke Shiraki, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi, Kiyoaki Moriuchi
  • Patent number: 10790530
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Patent number: 10749202
    Abstract: A redox flow battery includes a cell frame having a frame body in which a sealing groove is formed and a sealing member disposed in the sealing groove. The redox flow battery includes an adhesive that fixes the sealing member to the sealing groove, and a type A durometer hardness of the adhesive after curing is 100 or less. Preferably, the type A durometer hardness of the adhesive after curing is less than or equal to a type A durometer hardness of the sealing member.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 18, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kousuke Shiraki, Takashi Kanno, Haruhisa Toyoda, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi
  • Publication number: 20200259198
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Application
    Filed: January 17, 2019
    Publication date: August 13, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Publication number: 20200112044
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Application
    Filed: January 17, 2019
    Publication date: April 9, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Patent number: 10608275
    Abstract: A redox flow battery cell includes a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode. The positive electrode and the negative electrode have an overlapping region where the positive electrode and the negative electrode overlap each other with the membrane therebetween, and at least one of the positive electrode and the negative electrode has a non-overlapping region where the positive electrode and the negative electrode do not overlap each other with the membrane therebetween. The total area of the non-overlapping region is 0.1% to 20% of the area of the overlapping region.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: March 31, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masahiro Kuwabara, Takashi Kanno
  • Patent number: 10593964
    Abstract: A bipolar plate is a bipolar plate for a battery, the bipolar plate having a positive electrode disposed on a first surface side thereof and a negative electrode disposed on a second surface side thereof, wherein at least one of the first surface and the second surface is provided with a flow path through which an electrolyte flows. The flow path includes an introduction port for the electrolyte, a discharge port for the electrolyte, and a groove section which is located between the introduction port and the discharge port and guides the electrolyte to a predetermined route. The groove section includes a plurality of vertical groove sections which extend in a vertical direction and are arranged in parallel in a direction orthogonal to the vertical direction when the bipolar plate is placed at a predetermined position in the battery.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: March 17, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hayato Fujita, Hideyuki Yamaguchi, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Hayashi
  • Patent number: 10566644
    Abstract: Provided are a battery cell that can be produced efficiently. A frame body of each cell frame of a battery cell includes an inner peripheral recessed portion formed by reducing a thickness of a peripheral portion that surrounds an entire perimeter of the penetrating window so that the peripheral portion has a smaller thickness than other portions of the frame body. A bipolar plate of the battery cell includes an outer peripheral engaging portion that engages with the inner peripheral recessed portion, the outer peripheral engaging portion being a portion having a particular width and extending throughout an entire outer periphery of the bipolar plate.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 18, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hideyuki Yamaguchi, Katsuya Yamanishi, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Kiyoaki Hayashi, Hayato Fujita, Kousuke Shiraki
  • Publication number: 20200021461
    Abstract: In a communication device, a communicator communicates with a communication counterpart using a first communication mode or a second communication mode. When a communication by the communicator with the communication counterpart using the second communication mode is reset due to a first cause, if the communication with the communication counterpart using the second communication mode is acceptable, a communication controller causes the communicator to resume communication with the communication counterpart using the second communication mode, and if the communication with the communication counterpart using the second communication mode is unacceptable, the communication controller causes the communicator to start a communication with the communication counterpart using the first communication mode.
    Type: Application
    Filed: November 11, 2016
    Publication date: January 16, 2020
    Inventors: Hiroaki ENDO, Masahiro ISHIHARA, Yohei MIYAURA, Yoshiro MURAKAMI, Yasushi KUWABARA
  • Patent number: 10418821
    Abstract: A PCS comprises a DC/DC convertor that converts a voltage of a DC power input from a solar cell; an inverter that converts the DC power to an AC power; and a controller 134 that stops an operation of the DC/AC convertor without stopping the inverter when a condition that stops an output of the solar cell is satisfied.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 17, 2019
    Assignee: KYOCERA Corporation
    Inventors: Masaomi Satake, Masahiro Baba, Yuri Sato, Kenta Igarashi, Megumi Kuwabara
  • Publication number: 20190245238
    Abstract: A cell frame includes a bipolar plate and a frame body provided on an outer periphery of the bipolar plate. The bipolar plate includes, in a surface thereof, a groove portion through which an electrolyte supplied from an outside of the cell frame flows. The groove portion includes a liquid-holding portion that holds the electrolyte when the supply of the electrolyte from the outside is stopped. The frame body has an opening having a planar area of 250 cm2 or more. A total volume of a volume of a recess formed by the bipolar plate and an inner wall of the frame body and a total volume of the liquid-holding portion is 5 cm3 or more.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Takefumi Ito, Masahiro Kuwabara
  • Publication number: 20190237791
    Abstract: A redox flow battery cell includes a positive electrode, a negative electrode, and a membrane interposed between the positive electrode and the negative electrode. The positive electrode and the negative electrode have an overlapping region where the positive electrode and the negative electrode overlap each other with the membrane therebetween, and at least one of the positive electrode and the negative electrode has a non-overlapping region where the positive electrode and the negative electrode do not overlap each other with the membrane therebetween. The total area of the non-overlapping region is 0.1% to 20% of the area of the overlapping region.
    Type: Application
    Filed: September 8, 2017
    Publication date: August 1, 2019
    Inventors: Masahiro Kuwabara, Takashi Kanno
  • Publication number: 20190157699
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Inventors: Takashi KANNO, Katsuya YAMANISHI, Takefumi ITO, Masahiro KUWABARA, Kiyoaki MORIUCHI, Hideyuki YAMAGUCHI, Hayato FUJITA, Kousuke SHIRAKI, Kiyoaki HAYASHI
  • Patent number: 10230123
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: March 12, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Publication number: 20190067726
    Abstract: A redox flow battery includes a cell frame having a frame body in which a sealing groove is formed and a sealing member disposed in the sealing groove. The redox flow battery includes an adhesive that fixes the sealing member to the sealing groove, and a type A durometer hardness of the adhesive after curing is 100 or less. Preferably, the type A durometer hardness of the adhesive after curing is less than or equal to a type A durometer hardness of the sealing member.
    Type: Application
    Filed: January 25, 2017
    Publication date: February 28, 2019
    Inventors: Kousuke Shiraki, Takashi Kanno, Haruhisa Toyoda, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi
  • Publication number: 20190067711
    Abstract: Provided is a redox flow battery in which damage is unlikely to occur in a membrane. A redox flow battery includes a pair of adjacent cell frames, each cell frame including a frame body in which a flow channel for an electrolyte is formed, and a bipolar plate disposed inside the frame body; a positive electrode and a negative electrode disposed so as to face each other between the bipolar plates of the pair of cell frames; a membrane interposed between the positive electrode and the negative electrode; a protection plate which covers the flow channel and presses edge portions of the positive electrode or the negative electrode toward the bipolar plate; and a membrane protection structure which prevents the membrane from being broken by contact between the protection plate and the membrane.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 28, 2019
    Inventors: Kosuke Shiraki, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi, Kiyoaki Moriuchi
  • Patent number: 10211467
    Abstract: A cell frame for a redox flow battery comprises: a bipolar plate; and a frame body provided at an outer periphery of the bipolar plate, the frame body including a manifold which penetrates through front and back surfaces of the frame body and through which an electrolyte flows, and at least one slit being formed on the front surface of the frame body and forming a channel of the electrolyte between the manifold and the bipolar plate, a cross sectional shape of the slit, in a longitudinal direction of the slit, having a width w and a depth h, the width w and the depth h satisfying (A) w?3 mm and (B) 1/8<h/w<1.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 19, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takefumi Ito, Takashi Kanno, Masahiro Kuwabara, Katsuya Yamanishi, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi, Kousuke Shiraki, Kiyoaki Moriuchi
  • Patent number: 10199664
    Abstract: A frame body, which is provided around a bipolar plate disposed between a positive electrode and a negative electrode of a redox flow battery, includes a positive electrode liquid supply slit and a positive electrode liquid discharge slit for supplying and discharging a positive electrode electrolyte to and from the positive electrode, the slits being provided on the one surface side of the frame body; and a negative electrode liquid supply slit and a negative electrode liquid discharge slit for supplying and discharging a negative electrode electrolyte to and from the negative electrode, the slits being provided on the other surface side of the frame body. At least one pair among a pair of inlets of the positive electrode liquid supply slit and the negative electrode liquid supply slit and a pair of outlets of the positive electrode liquid discharge slit and the negative electrode liquid discharge slit are provided so as to partly overlap each other in the thickness direction of the frame body.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: February 5, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Masahiro Kuwabara