Patents by Inventor Oose Okutani

Oose Okutani 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: 20220231357
    Abstract: A cylindrical battery having a bottomed cylindrical outer can including a bottom surface part and a side surface part; a sealing body that closes an opening part of the outer can; and a gasket disposed between the outer can and the sealing body. The outer can has: a groove part that is formed such that a side surface section thereof extends from the outside to the inside and supports the sealing body with the gasket therebetween; and a shoulder part that is formed to face the groove part with the sealing body and the gasket therebetween and sandwiches the sealing body together with the groove part. At least a portion of the shoulder part extends radially inward of the sealing body from an inner end of the groove part, and an easily deformable part is formed on the shoulder part along the circumferential direction of the outer can.
    Type: Application
    Filed: May 26, 2020
    Publication date: July 21, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Ryota Okimoto, Oose Okutani
  • Publication number: 20220115756
    Abstract: A sealed battery, which is an exemplary embodiment, comprises a battery case including a bottomed cylindrical outer can and a sealing body that closes an opening of the outer can, a gasket disposed between the outer can and the sealing body, and an electrode body including an electrode and housed in the battery case. The sealing body includes a metal plate, and the metal plate has a thin portion formed in an annular shape, a valve portion having a convex shape inside the battery case, and an annular portion to which the electrode lead is connected. The gasket is provided with an elastically deformable portion that abuts against the inner surface of the valve portion and urges the valve portion to the outside of the battery case.
    Type: Application
    Filed: January 16, 2020
    Publication date: April 14, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Masayoshi Yoshida, Oose Okutani, Takahiro Nogami, Akira Takano
  • Publication number: 20220069392
    Abstract: A gasket of a cylindrical battery according to an embodiment of the present disclosure comprises a cylindrical part, and a ring part which extends from one end part of the cylindrical part in the axial direction toward an inner side thereof in the radial direction. A surface of the ring part which is opposite the cylindrical part side in the axial direction has, an approximately flat surface, A protrusion is provided on the side of the ring part which is toward the cylindrical part in the axial direction. Said protrusion: is positioned with gaps in the radial direction in relation to both the cylindrical part and an inner end of the ring part in the radial direction; and protrudes in the axial direction.
    Type: Application
    Filed: December 11, 2019
    Publication date: March 3, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Ryota Okimoto, Oose Okutani, Shin Haraguchi
  • Publication number: 20220069408
    Abstract: A sealed battery including a battery case that includes a cylindrical exterior can having a bottom and an opening sealing body that closes an opening of the outer can; a gasket that is arranged between the exterior can and the opening sealing body; and an electrode body. The opening sealing body includes: a metal plate with an annular part to which an electrode lead is electrically connected, and a disconnecting part that is separated from the annular part when the inner pressure of the battery case exceeds a predetermined threshold; a valve body that is arranged further to the outside of the battery case than the metal plate; and an insulating plate that is arranged between the metal plate and the valve body. The insulating plate or the gasket is provided with an elastic deformation part that deforms in the direction of the valve body.
    Type: Application
    Filed: December 2, 2019
    Publication date: March 3, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Masayoshi Yoshida, Oose Okutani, Takahiro Nogami, Akira Takano
  • Publication number: 20220052406
    Abstract: The purpose of the present disclosure is to provide a cylindrical battery in which a short circuit between an outer can and a sealing body can be suppressed. In a cylindrical battery (10) according to an embodiment of the present disclosure, a gasket (28) includes an extension part (29) extending from between a sealing body (17) and a tip (33a) on a radially inward side of a shoulder (33) of an outer can (16). The extension part (29) is arranged so that the gasket (28) intersects any straight lines connecting an upper surface (47) of the shoulder (33) opposite to the electrode body side in the axial direction and an upper surface (41) of an inner portion (40) opposite to the electrode body side in the axial direction, the inner portion (40) being located radially inward of the shoulder (33) in the sealing body (17).
    Type: Application
    Filed: December 2, 2019
    Publication date: February 17, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Oose Okutani
  • 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
  • Publication number: 20220021072
    Abstract: A sealed battery with a battery case that includes a bottomed cylindrical outer can and an opening-sealing body that closes an opening section of the outer can; and an electrode body that is accommodated inside the battery case. The opening-sealing body includes a metal plate, and the metal plate includes a protruding section that bulges toward the outside of the battery cast, and a flange section that is formed on the circumference of the protruding section. The protruding section includes an inclination section that inclines inward from the radial outside of the opening sealing body so as to be progressively separated from the electrode body, wherein a thin wall section, which has a thickness less than portions other than the inclination section and is preferably broken when the inner pressure of the battery case exceeds a predetermined threshold, is formed in at least a portion of the inclination section.
    Type: Application
    Filed: November 13, 2019
    Publication date: January 20, 2022
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Takahiro Nogami, Masayoshi Yoshida, Oose Okutani, Akira Takano
  • Publication number: 20210257607
    Abstract: A nonaqueous electrolyte secondary battery which includes a metal foil collector of one of a positive electrode plate and a negative electrode plate which is exposed at at least part of the outermost circumferential surface of the electrode group in a rolling direction, and the collector is in contact with the inner surface of a case main body. When a region of the inner surface of the case main body from the opening-portion-side edge to the position in contact with the bottom-portion-side edge of the gasket is denoted as a first region S1 and a region of the inner surface of the case main body opposing the outermost circumferential surface of the electrode group is denoted as a second region S2, the arithmetic mean roughness Ra1 of the first region S1 and the arithmetic mean roughness Ra2 of the second region S2 satisfy Ra1<Ra2.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 19, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Akira Takano, Oose Okutani
  • Publication number: 20210175566
    Abstract: A battery including: an electrode body having a circular-cylindrical shape; and a battery can housing the electrode body. A battery can includes a cylindrical portion, a bottom wall closing one end of the cylindrical portion , and an open rim continuing to the other end of the cylindrical portion. The cylindrical portion has a shape of inner circumference including a corner portion.
    Type: Application
    Filed: April 3, 2019
    Publication date: June 10, 2021
    Inventor: Oose OKUTANI
  • Publication number: 20210175568
    Abstract: A battery including: a battery can including a cylindncal portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuing to the other end of the cylindncal 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 an inner ring portion disposed on the peripheral portion on a side facing the electrode body, an outer ring portion disposed on the peripheral portion on a side opposite to the side facing the electrode body, and a side wall portion covering an end surface of the peripheral portion. The sealing plate and the gasket are integrally molded to be in close contact with each other.
    Type: Application
    Filed: March 27, 2019
    Publication date: June 10, 2021
    Applicants: PANASONIC CORPORATION, SANYO ELECTRIC CO., LTD., SANYO ELECTRIC CO., LTD.
    Inventors: Shinya GESHI, Oose OKUTANI
  • Publication number: 20210167455
    Abstract: A battery module includes a plurality of battery cells each having a terminal, and a lead plate having a lead part each of which is joined to the terminal of each of the battery cells to electrically connect the battery cells to each other. The lead part includes an aluminum thin plate having aluminum purity higher than or equal to 99.0%. Surface roughness Ra of a joining surface of the lead part to the terminal is less than or equal to 10 ?m. The lead part is electrically connected to the terminal by solid-phase bonding.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Inventors: Oose OKUTANI, Shinichi SAKAMOTO
  • Publication number: 20210057684
    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 continuing to 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 is compressed between an end surface of the peripheral portion and the open rim, in a radial direction of the opening.
    Type: Application
    Filed: April 3, 2019
    Publication date: February 25, 2021
    Inventors: Oose OKUTANI, Kyosuke MIYATA, Shinya GESHI
  • Publication number: 20210043915
    Abstract: The purpose of the present disclosure is to provide a secondary battery in which a current interruption function of an electrode tap can be enhanced during an external short circuit, and a temperature rise in the battery can be effectively suppressed. A secondary battery according to one embodiment of the present disclosure is provided with: an electrode assembly having a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; a sealing assembly constituting a positive terminal; a case body constituting a negative terminal; a positive electrode tap connecting the positive electrode and the sealing assembly; and a negative electrode tap connecting the negative electrode and the case body, wherein the positive electrode has a fuse part which has a relatively small cross-sectional area in the positive electrode, and the fuse part of the positive electrode is metallurgically bonded to the sealing assembly.
    Type: Application
    Filed: February 13, 2019
    Publication date: February 11, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Norie Mantoku, Oose Okutani, Kyosuke Miyata
  • Publication number: 20210043879
    Abstract: A battery includes: a batter can having a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuing to the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; a sealing body fixed to the open rim so as to seal an opening defined by the open rim; and a electrically insulating film disposed on at least part of at least an inner wall of the battery can. The sealing body includes a sealing plate and a gasket disposed at a peripheral portion of the sealing plate. The insulating film has a first portion covering at least part of a first region of the inner wall corresponding to between an end of the gasket on the electrode body side and an end of the electrode body on the gasket side.
    Type: Application
    Filed: April 3, 2019
    Publication date: February 11, 2021
    Inventors: Shin HARAGUCHI, Oose OKUTANI, Shinya GESHI
  • Publication number: 20210020977
    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: Application
    Filed: April 3, 2019
    Publication date: January 21, 2021
    Inventors: Oose OKUTANI, Shinya GESHI
  • Publication number: 20210005869
    Abstract: A battery according to an aspect of the present disclosure includes: a positive electrode, a negative electrode, a positive electrode tab electrically connected to the positive electrode; a negative electrode tab electrically connected to the negative electrode; a positive electrode tab tape covering the positive electrode tab: and a negative electrode tab tape covering the negative electrode tab. In the battery described above, at least one tab tape of the positive electrode tab tape and the negative electrode tab tape has a multilayer structure in which an adhesive layer and a substrate layer primarily formed from an organic material are laminated in this order from an electrode tab side, and the adhesive layer contains an adhesive material and a reactive material which generates an endothermic reaction at a temperature lower than a heat resistance temperature of the organic material.
    Type: Application
    Filed: February 1, 2019
    Publication date: January 7, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Masayoshi Yoshida, Oose Okutani
  • Publication number: 20200411909
    Abstract: A secondary battery according to an embodiment includes: an electrode body which contains a positive electrode, a negative electrode, and at least one separator interposed between the positive electrode and the negative electrode; a case main body which receives the electrode body; a sealing body which seals an opening portion of the case main body; and a sealing body-side insulating member provided between the sealing body and one end portion of the electrode body and a case main body-side insulating member; the one end portion and the other end portion of the electrode body each form a protruding section; and the sealing body-side insulating member includes a base material and an adhesive layer which is disposed on the base material and which contains a cured object of a curable resin, and the protruding section of the one end portion of the electrode body is adhered to the adhesive layer.
    Type: Application
    Filed: February 13, 2019
    Publication date: December 31, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventor: Oose Okutani
  • Patent number: 10615401
    Abstract: A cylindrical battery according to an aspect of the present invention includes an electrode assembly including a positive electrode plate and a negative electrode plate wound together via a separator, an electrolytic solution, a bottomed cylindrical housing can, and a sealing unit fixed by crimping of an open end of the housing can via a gasket. The sealing unit includes a valve member having a circular outline, a metal plate connected to a central portion of the valve member so as to be farther inside the battery than the valve member, and an annular insulating member disposed between an outer peripheral portion of the valve member and an outer peripheral portion of the metal plate. The valve member has a sloping region in which the thickness decreases or increases continuously along the radial direction.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 7, 2020
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naoto Kunoike, Kyosuke Miyata, Oose Okutani, Kazutoshi Kohira, Tomohiko Yokoyama, Shinya Geshi
  • Patent number: 10601002
    Abstract: A cylindrical battery in an aspect of the present invention includes an electrode body formed by winding a positive electrode plate and a negative electrode plate with a separator interposed therebetween; an electrolyte; a bottomed cylindrical outer can; and a sealing body crimped to an opening of the outer can via a gasket. The sealing body includes a valve body having an annular protrusion part, an insulating member disposed on an inner circumference of the protrusion part of the valve body and having a skirt portion, and a metal plate disposed on an inner circumference of the skirt portion of the insulating member and connected to a center portion of the valve body. The metal plate is crimped with the protrusion part of the valve body via the insulating member.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: March 24, 2020
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shuji Sugimoto, Kyosuke Miyata, Oose Okutani, Kazutoshi Kohira, Tomohiko Yokoyama, Shinya Geshi
  • Publication number: 20200020893
    Abstract: A metal case has a cylindrical body section, an opening section at one end of the body section, the opening section having an opening, and a bottom section closing the other end of the body section. At least one of the body section and the opening section has a protrusion sticking outward in the direction of the radius of the body section.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akira Takano, Oose Okutani, Takeshi Enomoto, Masayoshi Yoshida