Patents by Inventor Motoki Kinugawa

Motoki Kinugawa 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: 20190267611
    Abstract: An electrode for a nonaqueous electrolyte secondary battery that is less likely to cause loss of a mixture layer and that can ensure good cycle characteristics of the battery. An electrode for a nonaqueous electrolyte secondary battery of an exemplary embodiment includes a rectangular current collector and a mixture layer that contains an active material and a binder and that is formed on the current collector. The mixture layer covers at least one edge of four linear peripheral edges of the current collector, and the binder content in the mixture layer has a maximum value at a position 0.5 mm to 5.5 mm away from the one edge in a second direction that is perpendicular to a first direction along the one edge. The maximum value is more than 100% and 240% or less of the binder content at the center in the second direction of the mixture layer.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 29, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Yuta Fukutomi, Motoki Kinugawa, Tomofumi Yanagi
  • Publication number: 20190252667
    Abstract: An electrode for a non-aqueous electrolyte secondary battery according to one embodiment includes a belt-like current collector, a mixture layer formed on each surface of the current collector, and a lead bonded to an exposed portion of the current collector where the surfaces of the current collector are exposed, the lead extending from one end of the current collector, the one end and another end constituting both ends of the current collector in the width direction. The mixture layer on at least one surface of the current collector is formed in the width direction of the current collector and adjacent to the exposed portion on the other end side, and the length in the width direction of a portion of the lead disposed on the current collector ranges from 60% to 98% of the width of the current collector.
    Type: Application
    Filed: October 13, 2017
    Publication date: August 15, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Toshitaka Moriyama, Motoki Kinugawa, Tomofumi Yanagi
  • Publication number: 20190054495
    Abstract: A power storage device and an applicator is obtained that achieve an increase in capacity and an improvement in productivity, and that enable the thickness of a mixture layer to be inhibited from varying. A positive electrode mixture slurry is discharged into discharge regions of a belt-like positive electrode current collector that extend in a length direction of the positive electrode current collector from discharge nozzles corresponding to the respective discharge regions to form a positive electrode mixture layer on the positive electrode current collector. The discharge regions are arranged such that a part of each of the discharge regions overlaps a part of another of the discharge regions adjacent thereto when viewed in the length direction to form overlapping portions. The positive electrode mixture slurry is intermittently discharged to form an exposed portion on at least one of the discharge regions.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 21, 2019
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Masashi Tsukamoto, Tomofumi Yanagi, Motoki Kinugawa
  • Publication number: 20180287213
    Abstract: An electrode plate for power storage devices having a high capacity and a power storage device including the electrode plate for power storage devices, an exemplary embodiment includes a strip-shaped positive electrode core and a positive electrode active material layer provided on at least one surface of the positive electrode core. A bare part is formed in an end portion of the positive electrode core in the width direction. The bare part is a part in which the surface of the core is exposed and to which a positive electrode lead is to be connected. The positive electrode active material layer has a thin part in at least part of a first region aligned with the bare part in the longitudinal direction of the positive electrode core. The thin part is thinner than a second region, which is a region other than the first region.
    Type: Application
    Filed: October 27, 2016
    Publication date: October 4, 2018
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Eisuke Sato, Motoki Kinugawa, Naoyuki Koide
  • Patent number: 9620767
    Abstract: An electrode active material layer containing an electrode active material and a binder. The binder is distributed in the electrode active material layer such that the amount of the binder increases continuously from an outer surface of the electrode active material layer toward the core. The amount of the binder present in the electrode active material layer per unit thickness is less than 10 in a region extending from a position 90% of the thickness of the electrode active material layer to a position 100% of the thickness of the electrode active material layer from a surface of the electrode active material layer facing the core, with 10 being assigned to the amount of the binder present in the electrode active material layer per unit thickness if the binder is uniformly distributed in the electrode active material layer.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: April 11, 2017
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Motoki Kinugawa, Kenji Date
  • Patent number: 9312542
    Abstract: An electrode active material layer containing an electrode active material and a binder. The electrode active material layer includes a portion containing the smallest amount of the binder in a middle region across the thickness of the electrode active material layer. The binder is distributed in the electrode active material layer such that the amount of the binder increases continuously from the portion toward the core and an outer surface of the electrode active material layer. Preferably, the amount of the binder present in the electrode active material layer per unit thickness is limited to more than 10 in a region extending 10% of the thickness from the outer surface of the electrode active material layer, with 10 being assigned to the amount of the binder present in the electrode active material layer per unit thickness if the binder is uniformly distributed.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: April 12, 2016
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Motoki Kinugawa, Kenji Date
  • Publication number: 20150303478
    Abstract: An electrode active material layer containing an electrode active material and a binder. The electrode active material layer includes a portion containing the smallest amount of the binder in a middle region across the thickness of the electrode active material layer. The binder is distributed in the electrode active material layer such that the amount of the binder increases continuously from the portion toward the core and an outer surface of the electrode active material layer. Preferably, the amount of the binder present in the electrode active material layer per unit thickness is limited to more than 10 in a region extending 10% of the thickness from the outer surface of the electrode active material layer, with 10 being assigned to the amount of the binder present in the electrode active material layer per unit thickness if the binder is uniformly distributed.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 22, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Motoki Kinugawa, Kenji Date
  • Publication number: 20150263333
    Abstract: An electrode active material layer containing an electrode active material and a binder. The binder is distributed in the electrode active material layer such that the amount of the binder increases continuously from an outer surface of the electrode active material layer toward the core. The amount of the binder present in the electrode active material layer per unit thickness is less than 10 in a region extending from a position 90% of the thickness of the electrode active material layer to a position 100% of the thickness of the electrode active material layer from a surface of the electrode active material layer facing the core, with 10 being assigned to the amount of the binder present in the electrode active material layer per unit thickness if the binder is uniformly distributed in the electrode active material layer.
    Type: Application
    Filed: October 23, 2013
    Publication date: September 17, 2015
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Motoki Kinugawa, Kenji Date