Patents by Inventor Shinya Geshi

Shinya Geshi 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: 20240101240
    Abstract: A watercraft propulsion device includes: a motor driving a propulsion unit; a battery supplying electric power to the motor; and a gas flow passage including one end communicating with the battery and another end communicating with a region that is outside a watercraft hull and is located lower than an upper end of a shell panel disposed at an edge of the watercraft hull, the gas flow passage exhausting a gas ejected from the battery from the other end to outside of the watercraft hull.
    Type: Application
    Filed: January 18, 2022
    Publication date: March 28, 2024
    Inventors: MUTSUHIKO TAKEDA, SHINYA GESHI
  • Patent number: 11881550
    Abstract: A battery including: a battery can having a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuous with the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; and a sealing body fixed to the open rim so as to seal an opening defined by the open rim. The sealing body includes a sealing plate and a gasket disposed at a peripheral portion of the sealing plate. The gasket has at least one protruding portion configured to restrict insertion of the sealing body into the open rim.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: January 23, 2024
    Assignees: PANASONIC ENERGY CO., LTD., PANASONIC HOLDINGS CORPORATION
    Inventors: Oose Okutani, Shinya Geshi
  • Publication number: 20230361357
    Abstract: A power storage device includes a first electrode having a strip first current collector and a first active material layer carried on the first current collector, a second electrode having a strip second current collector and a second active material layer carried on the second current collector, and a separator interposed between the first electrode and the second electrode. The first electrode, the second electrode, and the separator form a columnar wound body. The first current collector has a plurality of first tabs electrically connected to one end along the longitudinal direction of the first current collector and extending radially inward of the wound body. The first tab has a proximal end portion connected to the first current collector, and a first wide portion wider than the proximal end portion. The plurality of first tabs are overlapped and welded to each other at their first wide portions.
    Type: Application
    Filed: September 17, 2021
    Publication date: November 9, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Publication number: 20230335754
    Abstract: A power storage device includes a first electrode having a first current collector, a second electrode having a second current collector, and a separator, which form a columnar wound body. The power storage device includes a cylinder covering an outer periphery of the columnar wound body and having a first opening, a sealing body sealing the first opening, and at least one first tab, its one end connected to the first current collector and the other end connected to the sealing body. The sealing body has a first member including a first face facing away from the columnar wound body, and a second member including a second face facing the columnar wound body. The other end of the first tab is welded to the first face of the first member to form a first welding portion that is positioned between the first face and the second face.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 19, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Publication number: 20230327300
    Abstract: A power storage device has a columnar wound body in which a first and second electrode are placed on top of another with a separator interposed therebetween. The first electrode has a first portion, a second portion, and a first connection portion that connects the first and second portion, and the first and second portion face each other. The first connection portion is provided in a band region of the first current collector along the winding direction of the wound body, as a first exposed portion not having the first active material layer and exposing the first current collector. The first and second portions are portions each having the first active material layer at both sides of the first connection portion. The second electrode is sandwiched by the first portion and the second portion with the separator interposed therebetween, and wound along the winding direction to form the wound body.
    Type: Application
    Filed: September 17, 2021
    Publication date: October 12, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Publication number: 20230327299
    Abstract: A power storage device includes a first electrode having an elongated sheet first current collector, and a first active material layer carried on the first current collector, an elongated sheet second electrode, a separator interposed between the first electrode and the second electrode, a non-aqueous electrolyte, and a first current collecting portion electrically connected to the first current collector, wherein the first electrode, the second electrode, and the separator form a columnar wound body, one end portion along a longitudinal direction of the first current collector is a first exposed portion not having the first active material layer and projected from one end face of the wound body, the first current collecting portion has a porous metal portion, and one or more projected portions that are pressed into the porous metal portion, and the porous metal portion fills the gap of the first exposed portion.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 12, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Patent number: 11777165
    Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion and a bottom portion; an electrode body that is in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface facing an inner peripheral surface of the opening edge portion of the tubular portion and is configured to seal the opening edge portion. A part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion is on the outer peripheral surface of the sealing member, the preventing portion being configured to prevent the electrolytic solution from rising toward a position, in which the melting portion is formed.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: October 3, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kota Shimizu, Takaaki Kassai, Kazumichi Shimizu, Shinya Geshi
  • Publication number: 20230307749
    Abstract: An electricity storage device to be disclosed includes: an electrode assembly including a first electrode and a second electrode; a can accommodating the electrode assembly and including a bottomed tubular shape with an opening provided at one end; and a sealing material joined to the one end of the can to seal the opening. The sealing material includes a first ring that is conductive, a second ring that is conductive and joined to the first ring, a terminal plate that is conductive provided between the first ring and the second ring, and an insulation ring insulating the first ring and the second ring from the terminal plate. An outer peripheral edge of the terminal plate is held between the first ring and the second ring with the insulation ring being put therebetween.
    Type: Application
    Filed: September 17, 2021
    Publication date: September 28, 2023
    Inventors: KAZUMICHI SHIMIZU, TAKESHI NAGAO, SHINYA GESHI
  • Publication number: 20230291038
    Abstract: An energy storage apparatus includes: a plurality of electrode assemblies that are cylindrical, and a film outer body including a plurality of housing portions that individually wrap the plurality of electrode assemblies; and a sealing portion that seals each housing portion and connects the plurality of housing portions to each other. The film outer body is bent or curved between the housing portions adjacent each other to extend in a zigzag manner.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 14, 2023
    Inventors: Shota NORIMINE, Hirotka OGINO, Shinya GESHI, Toshiya GOTOU, Shoichiro WATANABE, Shingo KUME
  • Patent number: 11600878
    Abstract: A battery block includes assembled batteries that are arranged in parallel to each other, and the plurality of assembled batteries are each formed of a plurality of batteries as a unit. Each of the batteries has a positive-electrode terminal and a negative-electrode terminal on one end portion of the battery. The assembled battery includes: the plurality of batteries which are arranged in a row with one end portions of the batteries directed in the same direction; an insulation holder which is arranged on one end portion side of the batteries and holds the batteries; and a positive-electrode bus bar and a negative-electrode bus bar arranged on one end portions of the batteries. The positive-electrode bus bar and the negative-electrode bus bar are respectively held by holding portions which are formed on the insulation holder along a row direction and in parallel to each other.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 7, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jiro Muratsu, Shinya Geshi
  • Publication number: 20230060460
    Abstract: A power storage device includes: an electrode group including first and second electrodes; a case accommodating the electrode group therein, the case having an opening; and a sealing body closing the opening of the case. The sealing body includes: an annular sealing plate having a first surface and a second surface opposite to the first surface, the sealing plate having a first through-hole provided therein; a terminal plate having a third surface and a fourth surface opposite to the third surface, the third surface facing the first surface of the sealing plate; and an annular gasket disposed between the sealing plate and the terminal plate, the gasket having a second through-hole overlapping the first through-hole. The sealing plate includes a first recessed portion and an outer peripheral portion connected to a peripheral edge of the first recessed portion, the first recessed portion having a recess in the first surface of the sealing plate and having the first through-hole therein.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: KAZUMICHI SHIMIZU, KAZUTOSHI KOHIRA, SHINYA GESHI
  • Publication number: 20230065382
    Abstract: An electricity storage device includes: an electrode group including first and second electrodes; a case accommodating the electrode group therein, the case having an opening provided therein; and a sealing body covering the opening of the case. The case includes a tubular part, a curved part connected to one end of the tubular part, and a bottom part closing another end of the tubular part. The curved part includes an opening rim, a crimp part connected to the opening rim, and a groove part connected to the crimp part, the crimp part being located outward from the opening rim along a radial direction of the tubular part, the groove part being recessed to protrude inward in the radial direction of the tubular part and having an annular shape.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: SHINYA GESHI, YOSHIYUKI OKAMURA
  • Publication number: 20230062553
    Abstract: A power storage device includes an electrode group, a case having an opening, and a sealing body. The sealing body includes an annular sealing plate, a terminal cap, and an insulating gasket. The sealing plate includes a first wall portion with a tubular shape and a flange portion extending from one end of the first wall portion outward in a radial direction of the first wall portion. The terminal cap includes a cover portion with a plate shape and a crimp portion connected with a periphery of the cover portion. The cover portion closes an opening of the first wall portion surrounded by another end of the first wall portion. The gasket includes a second wall portion with a tubular shape facing an outer peripheral surface of the first wall portion and an annular base disposed between the cover portion and the another end of the first wall portion. The crimp portion includes a third wall portion with a tubular shape surrounding at least a part of the second wall portion.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: KAZUMICHI SHIMIZU, KAZUTOSHI KOHIRA, SHINYA GESHI
  • Publication number: 20230048822
    Abstract: A power storage device includes a case, a power storage element disposed in the case, a lead connected to an electrode of the power storage element, a sealing member sealing an opening of the case. The sealing member includes a gasket and a sealing plate having conductivity. The gasket includes a base having a disk shape. The base is disposed between the sealing plate and the power storage element. The base has a through-hole formed therein. The sealing plate includes a protrusion inserted in the through-hole. The protrusion of the sealing plate is connected to the lead. The protrusion is configured to be displaced in a direction away from the lead in accordance with an increase of an internal pressure of the case so as to be disconnected from the lead.
    Type: Application
    Filed: January 22, 2021
    Publication date: February 16, 2023
    Inventors: SHINYA GESHI, KAZUTOSHI KOHIRA, SHINGO KUME
  • Publication number: 20230037722
    Abstract: Provided in a power storage module including: a plurality of power storage devices; and a first current collector that holds the plurality of power storage devices. The plurality of power storage devices each include a case having an opening, an electrode assembly including a first electrode and a second electrode housed in the case, and a sealing member that seals the opening. The case includes a tubular part including one end provided with the opening, and a bottom that closes the other end of the tubular part. The case is electrically connected to the first electrode. The first current collector has a plurality of first through-holes that set and position the corresponding one of the plurality of electric storage devices, and the plurality of first through-holes each have a periphery electrically connected to the case. This structure enables improving energy density of the power storage module.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 9, 2023
    Inventors: KAZUTOSHI KOHIRA, SHINYA GESHI
  • Patent number: 11469467
    Abstract: In a battery module including a plurality of battery blocks, the battery block is configured such that a plurality of assembled batteries each of which is formed of the plurality of batteries are arranged in parallel. The battery has a positive-electrode terminal and a negative electrode terminal on one end portion of the battery. The assembled battery includes a positive electrode bus bar for connecting the plurality of batteries in parallel and a negative electrode bus bar for connecting the plurality of batteries in parallel, which are disposed on one end portions of the batteries. On a boundary portion between the battery blocks, the positive electrode bus bars of the respective assembled batteries of one battery block and the negative electrode bus bars of the respective assembled batteries of the other battery block are respectively connected to each other in series by an inter-block connecting bus bar.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 11, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jiro Muratsu, Shinya Geshi
  • Publication number: 20220285775
    Abstract: A power storage module includes at least one cylindrical power storage device, and a lower holder that holds a lower end part of the power storage device, wherein at least one concave part is formed on one of a surface of the power storage device facing a holding part and a surface of the holding part facing the power storage device, and at least one convex part fitted in the concave part is formed on the other.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 8, 2022
    Inventors: SHINYA GESHI, HIROTAKA OGINO, CHIFUMI MURAYAMA, HIROSHI TAKASAKI
  • Publication number: 20220149466
    Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion at one end of the tubular portion and a bottom portion closing the other end of the tubular portion; an electrode body that is accommodated in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface disposed to face an inner peripheral surface of the opening edge portion of the tubular portion and seals the opening edge portion, in which a part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion, which prevents the electrolytic solution from rising toward a position, in which the melting portion is formed, between the inner peripheral surface of the opening edge portion and the outer peripheral surface of the sealing member, is provided on the outer peripheral surface of the sealing member, the preventing portion b
    Type: Application
    Filed: October 11, 2021
    Publication date: May 12, 2022
    Inventors: KOTA SHIMIZU, TAKAAKI KASSAI, KAZUMICHI SHIMIZU, SHINYA GESHI
  • Publication number: 20220123395
    Abstract: A battery including: a battery can including a cylinder portion including an opening edge portion at one end portion of the cylinder portion and a bottom portion that closes the other end portion of the cylinder portion; an electrode body; a sealing member that seals an opening of the opening edge portion. The sealing member includes: a sealing plate; a cap connected to the sealing plate and electrically insulated from the sealing plate; and a sealing portion sealing a space between the cylinder portion and the cap. The cap includes: a ring-shaped top plate portion opposing the opening edge portion in an axial direction of the cylinder portion; and a side wall portion covering an outer circumferential surface of the cylinder portion. The sealing portion may be a gasket provided between the cap and the cylinder portion in a compressed state. The cap is electrically connected to the cylinder portion.
    Type: Application
    Filed: November 29, 2019
    Publication date: April 21, 2022
    Inventors: Kazutoshi KOHIRA, Keisuke NAITO, Shinya GESHI, Hiroshi TAKASAKI, Kazumichi SHIMIZU
  • Publication number: 20220029232
    Abstract: A cylindrical battery wherein a central part of a sealing plate, fixed by swaging to an opening of an external packaging can, is configured to be warped toward the inner part of the battery. One embodiment is provided with: an electrode body in which a positive electrode plate and a negative electrode plate are rolled with a separator being disposed therebetween; an electrolytic solution; an external packaging can which has a bottomed cylindrical shape and which houses the electrode body and the electrolytic solution; and a sealing plate which is fixed by swaging to an opening of the external packaging can with a gasket therebetween. In the sealing plate, prior to the swage fixing, an outer peripheral edge to be fixed by swaging to the external packaging can is formed inclined so as to be directed to the inner part of the battery, toward radially outward.
    Type: Application
    Filed: December 19, 2019
    Publication date: January 27, 2022
    Applicants: SANYO Electric Co., Ltd., Panasonic Corporation
    Inventors: Ryo Kashimura, Oose Okutani, Shinya Geshi