Patents by Inventor Shin Haraguchi

Shin Haraguchi 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: 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: 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
  • Patent number: 11251458
    Abstract: A cylindrical battery with an electrode assembly, an electrolytic solution, a bottomed cylindrical exterior case accommodating the electrode assembly and the electrolytic solution, and a sealing unit fixed by crimping of an open end portion of the exterior case via a gasket. The sealing unit includes a valve member which has a protrudent portion that is annular in plan view, an insulating plate which is fitted within the inner periphery of the protrudent portion and which has an outer peripheral skirt portion, and a metal plate which is fixed within the inner periphery of the skirt portion of the insulating plate and which is connected to a central portion of the valve member. The tip of the protrudent portion is located at a level which does not reach the level of a second surface portion of the metal plate in the direction of thickness of the sealing unit.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: February 15, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata
  • Patent number: 11145942
    Abstract: A cylindrical battery according to an embodiment of the present invention includes an electrode body, an electrolyte solution, a tubular exterior can that accommodates the electrode body and the electrolyte solution, and a sealing body that is crimped on an opening portion of the exterior can. The sealing body includes a current interrupt mechanism in which a valve member and a metal plate are joined to each other with an insulating plate that includes a circular hollow portion interposed therebetween. The metal plate includes a thin portion that has a circular shape or a C-shape. The hollow portion and the thin portion are concentric with each other when viewed from a direction perpendicular to the metal plate. D1/D2 is no less than 0.56 and no more than 1 where D1 is the diameter of the thin portion, and D2 is the diameter of the hollow portion.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 12, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Tomohiko Yokoyama
  • Patent number: 11069916
    Abstract: A cylindrical battery according to an embodiment of the present invention includes an electrode body, an electrolyte solution, a tubular exterior can that has a bottom and that accommodates the electrode body and the electrolyte solution, and a sealing body that seals the exterior can. The sealing body includes a valve member, an insulating plate that includes a hollow portion, and a metal plate that has a first through-hole. The insulating plate is disposed between the valve member and the metal plate. At least one of the valve member and the metal plate includes a projection that projects toward an inside of the hollow portion. The valve member and the metal plate are joined to each other at the projection. The insulating plate has a second through-hole that is formed around the hollow portion.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 20, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Tomohiko Yokoyama
  • Publication number: 20210203047
    Abstract: A cylindrical battery with a sealing unit that includes a valve member which has a circular shape in plan view, an insulating plate which is disposed in contact with a surface of the valve member directed to the inside of the battery and which has an opening in a central region, and a metal plate which is opposed to the valve member with the insulating plate interposed therebetween and which is connected to a central portion of the valve member through the opening of the insulating plate. The valve member is configured so that the central portion and an outer peripheral portion are thicker, the central portion and the outer peripheral portion are connected to each other through an intermediate portion that is thinner having a flat surface extending along a radial direction, and the intermediate portion is in contact with the insulating plate from an inner to outer perimeter.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 1, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, 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: 20200313151
    Abstract: A cylindrical battery according to an embodiment of the present invention includes an electrode body, an electrolyte solution, a tubular exterior can that accommodates the electrode body and the electrolyte solution, and a sealing body that is crimped on an opening portion of the exterior can. The sealing body includes a current interrupt mechanism in which a valve member and a metal plate are joined to each other with an insulating plate that includes a circular hollow portion interposed therebetween. The metal plate includes a thin portion that has a circular shape or a C-shape. The hollow portion and the thin portion are concentric with each other when viewed from a direction perpendicular to the metal plate. D1/D2 is no less than 0.56 and no more than 1 where D1 is the diameter of the thin portion, and D2 is the diameter of the hollow portion.
    Type: Application
    Filed: March 14, 2017
    Publication date: October 1, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Tomohiko Yokoyama
  • Publication number: 20200280027
    Abstract: A battery including an upper insulating plate disposed between a sealing body and an electrode group. The upper insulating plate has a lead hole through which a positive electrode lead penetrates and an opening portion provided at a side opposite to the lead hole with respect to a central axis O of the battery orthogonal to the sealing body. The positive electrode lead has a first curved section adjacent to the lead hole and a second curved section provided at a side opposite to the first curved section with respect to the central axis O. When a distance from the central axis O to a portion of the second curved section farthest from the central axis O is represented by L1, and when a distance from the central axis O to a part of the opening portion nearest to the central axis O is represented by L2, L2>L1 is satisfied.
    Type: Application
    Filed: September 10, 2018
    Publication date: September 3, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Yuji Yamagami, Tomohiko Yokoyama, Kazutoshi Kohira, Shin Haraguchi
  • Publication number: 20200259202
    Abstract: A cylindrical battery with an electrode assembly, an electrolytic solution, a bottomed cylindrical exterior case accommodating the electrode assembly and the electrolytic solution, and a sealing unit fixed by crimping of an open end portion of the exterior case via a gasket. The sealing unit includes a valve member which has a protrudent portion that is annular in plan view, an insulating plate which is fitted within the inner periphery of the protrudent portion and which has an outer peripheral skirt portion, and a metal plate which is fixed within the inner periphery of the skirt portion of the insulating plate and which is connected to a central portion of the valve member. The tip of the protrudent portion is located at a level which does not reach the level of a second surface portion of the metal plate in the direction of thickness of the sealing unit.
    Type: Application
    Filed: October 15, 2018
    Publication date: August 13, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata
  • Patent number: 10319979
    Abstract: A battery includes a power generation component including a positive electrode, a negative electrode, and an electrolyte, and a battery case accommodating the power generation component. The negative electrode includes a first lead (17) having a single layer structure whose main component is nickel, and a second lead (18) having a layered structure including a Ni layer (18a) whose main component is nickel and a Cu layer (18b) whose main component is copper. The battery includes a layered portion (35) formed of the leads that are superposed such that the Ni layer (18a) of the second lead (18) faces the first lead (17). Part of the layered portion (35) is welded to an inner surface of the battery case with the first lead (17) at the layered portion (35) being disposed on a battery case side.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: June 11, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Koji Funami
  • Publication number: 20190103625
    Abstract: A cylindrical battery according to an embodiment of the present invention includes an electrode body, an electrolyte solution, a tubular exterior can that has a bottom and that accommodates the electrode body and the electrolyte solution, and a sealing body that seals the exterior can. The sealing body includes a valve member, an insulating plate that includes a hollow portion, and a metal plate that has a first through-hole. The insulating plate is disposed between the valve member and the metal plate. At least one of the valve member and the metal plate includes a projection that projects toward an inside of the hollow portion. The valve member and the metal plate are joined to each other at the projection. The insulating plate has a second through-hole that is formed around the hollow portion.
    Type: Application
    Filed: March 14, 2017
    Publication date: April 4, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Tomohiko Yokoyama
  • Patent number: 9887397
    Abstract: A battery case includes a case main body (20), a sealing body that seals an opening of the main body, and an insulating body (40) that is disposed at a part where the case body (20) and the sealing body are in contact with each other. In the battery case, an open end (22) of the case body (20) is crimped to the sealing body, and a dent (36) is formed in the sealing body by pressing the open end (22) against the sealing body.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: February 6, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Tomokazu Sada, Hajime Nishino, Shin Haraguchi
  • Patent number: 9871267
    Abstract: A laminated battery provided with an electricity-producing element and an outer case. The electricity-producing element contains a positive electrode, a negative electrode, and an electrolyte. The outer case comprises two sheets of laminating film and includes the following: a containing section that contains the electricity-producing element; and a sealing section that is formed around the edge of the containing section by bonding the sheets of laminating film to each other. Corners are formed along the boundary between the containing section and the sealing section, and an adhesive resin layer in the sealing section is thicker in corner regions near the aforementioned corners than in other regions.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: January 16, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Shinji Mino, Takayuki Shirane, Tomoki Tsuji
  • Publication number: 20170162837
    Abstract: A battery case includes a case main body (20), a sealing body that seals an opening of the main body, and an insulating body (40) that is disposed at a part where the case body (20) and the sealing body are in contact with each other. In the battery case, an open end (22) of the case body (20) is crimped to the sealing body, and a dent (36) is formed in the sealing body by pressing the open end (22) against the sealing body.
    Type: Application
    Filed: January 26, 2015
    Publication date: June 8, 2017
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Tomokazu Sada, Hajime Nishino, Shin Haraguchi
  • Publication number: 20170069901
    Abstract: A battery includes a power generation component including a positive electrode, a negative electrode, and an electrolyte, and a battery case accommodating the power generation component. The negative electrode includes a first lead (17) having a single layer structure whose main component is nickel, and a second lead (18) having a layered structure including a Ni layer (18a) whose main component is nickel and a Cu layer (18b) whose main component is copper. The battery includes a layered portion (35) formed of the leads that are superposed such that the Ni layer (18a) of the second lead (18) faces the first lead (17). Part of the layered portion (35) is welded to an inner surface of the battery case with the first lead (17) at the layered portion (35) being disposed on a battery case side.
    Type: Application
    Filed: January 26, 2015
    Publication date: March 9, 2017
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Shin Haraguchi, Kyosuke Miyata, Koji Funami
  • Publication number: 20160056463
    Abstract: A negative electrode-regulated non-aqueous electrolyte secondary battery comprises a negative electrode having a negative electrode active material layer, a positive electrode having a positive electrode active material layer, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte and stops charging as a result of the voltage drop of the negative electrode. In the non-aqueous electrolyte secondary battery, the size of the negative electrode active material layer is larger than the size of the positive electrode active material layer. The positive electrode active material layer contains a lithium-nickel composite oxide (A) represented by the general formula LiNixM1-xO2 (where 0.7?x<1 and M is one or more metals) and a lithium-nickel composite oxide (B) represented by the general formula LiNixCoyM1-x-yO2 (where 0<x?0.5, 0<y<1, and M is one or more metals except Co).
    Type: Application
    Filed: March 10, 2014
    Publication date: February 25, 2016
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Tomoki Tsuji, Takayuki Shirane, Shinji Mino, Shin Haraguchi
  • Publication number: 20150333358
    Abstract: A laminated battery provided with an electricity-producing element and an outer case. The electricity-producing element contains a positive electrode, a negative electrode, and an electrolyte. The outer case comprises two sheets of laminating film and includes the following: a containing section that contains the electricity-producing element; and a sealing section that is formed around the edge of the containing section by bonding the sheets of laminating film to each other. Corners are formed along the boundary between the containing section and the sealing section, and an adhesive resin layer in the sealing section is thicker in corner regions near the aforementioned corners than in other regions.
    Type: Application
    Filed: January 20, 2014
    Publication date: November 19, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shin Haraguchi, Shinji Mino, Takayuki Shirane, Tomoki Tsuji