Patents by Inventor Ryuichi Amagai

Ryuichi Amagai 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).

  • Patent number: 10608210
    Abstract: A flat battery basically comprises a battery body, a plate-shaped member and an elastic member. The battery body includes a power generation unit and a case member encasing and sealing the power generation unit therein. The plate-shaped member is configured to be disposed between an outer periphery portion of the battery body and an outer periphery portion of an adjacent battery body stacked that is to be stacked on the battery body. The elastic member joins the battery body and the plate-shaped member to connect the battery body and the plate-shaped member, and covers at least part of the plate-shaped member. The plate-shaped member includes an exposed part which is exposed from part of an end surface of the elastic member which covers the plate-shaped member in a thickness direction of the battery body.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: March 31, 2020
    Assignee: Envision AESC Japan Ltd.
    Inventors: Ryuichi Amagai, Kenichi Ochiai, Masakazu Shibuya
  • Patent number: 10468647
    Abstract: A battery pack includes a first battery module and a second battery module arranged adjacent the first battery module so as to define an open space portion. Each of the first and second battery modules includes a case configured to house at least one single cell. Each case includes a wall portion including a vent through which an inside of the case is capable of communicating with an area outside the case, and a wall region without the vent. The vent disposed in the wall portion of the case of the first battery module opens toward the open space portion and toward the wall region of the case of the second battery module, when the first battery module is disposed adjacent to the second battery module.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: November 5, 2019
    Assignee: Envision AESC Japan Ltd.
    Inventor: Ryuichi Amagai
  • Patent number: 10230076
    Abstract: A stationary electric power system including a low profile secondary battery that includes a battery body including an electric power generating element accommodated in an exterior package member. The low profile secondary battery includes a spacer disposed between the battery body and other battery body when the other battery body is stacked on the battery body. The spacer fixes the battery body in a predetermined position. The battery body and the spacer are connected with each other through an elastic body.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 12, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Ryuichi Amagai, Naoto Todoroki, Michinori Ikezoe, Toshiyuki Motohashi, Tomio Nagashima
  • Patent number: 9997760
    Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 12, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masashi Watanabe, Yuuji Tanjou, Masayasu Ota, Tsuyoshi Enokida, Hiroaki Kishimoto, Ryuichi Amagai, Teruo Segawa, Muneto Hayami
  • Patent number: 9742025
    Abstract: A battery pack includes a module stack body having a plurality of stacked battery modules; first and second connecting members each provided on the same surface of the module stack body in order to hold the stacked battery modules and extending in the stacking direction of the battery modules; a first reinforcing member fixed to the first and second connecting members at first and second fixed points; and a second reinforcing member fixed to the first and second connecting members at third and fourth fixed points. Orientation of the components along the stacking direction of the battery modules of vectors having respectively the first and third fixed points as a start point and the second and fourth fixed points as an end point are opposed to each other.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 22, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kentaro Hatta, Keisuke Satou, Ryuichi Amagai
  • Patent number: 9478775
    Abstract: A battery pack with improved assembly workability includes a plurality of battery modules stacked on each other, each provided with a case accommodating a unit cell and a through-bolt that penetrates a through hole formed in the cases along the stacking direction of the battery modules to connect the battery modules each other. The battery modules are further provided with an insertion auxiliary member that is inserted into at least one opening of the through hole, and the insertion auxiliary member has a tapered portion such that the inner diameter thereof gradually decreases towards the tip of the insertion auxiliary member.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: October 25, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Keisuke Satou, Ryuichi Amagai, Kentaro Hatta
  • Publication number: 20160260947
    Abstract: A battery pack includes a first battery module and a second battery module arranged adjacent the first battery module so as to define an open space portion. Each of the first and second battery modules includes a case configured to house at least one single cell. Each case includes a wall portion including a vent through which an inside of the case is capable of communicating with an area outside the case, and a wall region without the vent. The vent disposed in the wall portion of the case of the first battery module opens toward the open space portion and toward the wall region of the case of the second battery module, when the first battery module is disposed adjacent to the second battery module.
    Type: Application
    Filed: November 26, 2013
    Publication date: September 8, 2016
    Inventor: Ryuichi AMAGAI
  • Publication number: 20160104878
    Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.
    Type: Application
    Filed: December 14, 2015
    Publication date: April 14, 2016
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masashi WATANABE, Yuuji TANJOU, Masayasu OTA, Tsuyoshi ENOKIDA, Hiroaki KISHIMOTO, Ryuichi AMAGAI, Teruo SEGAWA, Muneto HAYAMI
  • Patent number: 9246145
    Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.
    Type: Grant
    Filed: May 30, 2005
    Date of Patent: January 26, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masashi Watanabe, Yuuji Tanjou, Masayasu Ota, Tsuyoshi Enokida, Hiroaki Kishimoto, Ryuichi Amagai, Teruo Segawa, Muneto Hayami
  • Patent number: 9236617
    Abstract: A battery module includes a plurality of flat cells and a plurality of nipping plates. Each of the flat cells has a cell main body and at least one electrode tab. The cell main body includes a power storage element sealed in a package member. The electrode tab is electrically connected to the power generating member and protruding outwardly from the cell main body. The flat cells are stacked on one another such that the electrode tabs are electrically connected in a stacking direction. Adjacent ones of the nipping plates in the stacking direction nip the electrode tab and a portion of the cell main body of a corresponding one of the flat cells from both opposite side surfaces of the corresponding one of the flat cells along the stacking direction.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 12, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Etsuo Ogami, Nobuhiro Shiraishi, Ryuichi Amagai
  • Patent number: 9178187
    Abstract: Within outer cover member 111 of laminated film including resin layer 111c, there is installed electricity generating element 112 thereby to constitute battery body 11, peripheral portion 113 of the outer cover member being sealed. Spacer 12 is provided which has fixing portion 121 by which the battery body is fixed to predetermined position, the spacer being arranged between outer peripheral portion of the battery body and outer peripheral portion of another battery body put on the battery body. In range H1 that includes an overlapped portion 14 between the outer peripheral portion and the spacer and is provided at least around the fixing portion of the outer peripheral portion, there is provided elastic resin portion 13 produced through insert molding of elastic resin. This thin battery exhibits satisfied stability in set condition against vibration of motor vehicle. This thin battery exhibits satisfied fixing stability against vehicle vibration.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 3, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Ryuichi Amagai, Naoto Todoroki, Michinori Ikezoe, Toshiyuki Motohashi, Tomio Nagashima
  • Patent number: 9153807
    Abstract: A laminated battery formed by laminating a plurality of flat cells each having an electrode tab includes: an insulating member disposed to prevent a short-circuit in the electrode tab; and a terminal connected to the electrode tab, wherein a tip end side of the terminal is supported by a support member provided on the insulating member.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: October 6, 2015
    Assignees: NISSAN MOTOR CO., LTD., CALSONIC KANSEI CORPORATION
    Inventors: Ryuichi Amagai, Masayuki Nakamura
  • Publication number: 20150270570
    Abstract: A battery pack includes a module stack body having a plurality of stacked battery modules; first and second connecting members each provided on the same surface of the module stack body in order to hold the stacked battery modules and extending in the stacking direction of the battery modules; a first reinforcing member fixed to the first and second connecting members at first and second fixed points; and a second reinforcing member fixed to the first and second connecting members at third and fourth fixed points. Orientation of the components along the stacking direction of the battery modules of vectors having respectively the first and third fixed points as a start point and the second and fourth fixed points as an end point are opposed to each other.
    Type: Application
    Filed: August 9, 2013
    Publication date: September 24, 2015
    Inventors: Kentaro Hatta, Keisuke Satou, Ryuichi Amagai
  • Publication number: 20150221907
    Abstract: A battery pack with improved assembly workability includes a plurality of battery modules stacked on each other, each provided with a case accommodating a unit cell and a through-bolt that penetrates a through hole formed in the cases along the stacking direction of the battery modules to connect the battery modules each other. The battery modules are further provided with an insertion auxiliary member that is inserted into at least one opening of the through hole, and the insertion auxiliary member has a tapered portion such that the inner diameter thereof gradually decreases towards the tip of the insertion auxiliary member.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 6, 2015
    Inventors: Keisuke Satou, Ryuichi Amagai, Kentaro Hatta
  • Patent number: 9099713
    Abstract: A module terminal includes a terminal main body which is made of a metal plate and an insulative interference preventive member which is mounted on the terminal main body. In the terminal main body, one end portion is connected electrically to an electrode of a battery pack, and a female screw portion is formed integrally on a terminal portion to penetrate therethrough. While a distal end of a male screw faces an end face of the battery pack when the male screw into the female screw portion, the interference preventive member is disposed therebetween.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: August 4, 2015
    Assignees: PIOLAX INC., NISSAN MOTOR CO., LTD.
    Inventors: Akira Umetani, Toshiyuki Motohashi, Ryuichi Amagai
  • Patent number: 8998017
    Abstract: The present invention provides a container, a lid body and a method of seaming a container, in which the influence of a load at the time of seaming can be made as small as possible, in the container having a seaming flange portion and a seaming curl portion notched. In a container of a structure in which a seaming flange portion formed at an open end portion of a container body, and a seaming curl portion formed on a periphery of a bottom lid are seamed to be joined to each other, and in which a notch is formed in at least one of the seaming curl portion and the seaming flange portion, a short and small curl portion in which a width of protrusion of the seaming curl portion is partially short is formed in at least one of circumferentially opposite sides of the notched portion.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 7, 2015
    Assignees: Toyo Seikan Kaisha, Ltd., Nissan Motor Co., Ltd.
    Inventors: Kei Oohori, Kazuhiko Tsukada, Ryuichi Amagai
  • Publication number: 20140302383
    Abstract: A flat battery basically comprises a battery body, a plate-shaped member and an elastic member. The battery body includes a power generation unit and a case member encasing and sealing the power generation unit therein. The plate-shaped member is configured to be disposed between an outer periphery portion of the battery body and an outer periphery portion of an adjacent battery body stacked that is to be stacked on the battery body. The elastic member joins the battery body and the plate-shaped member to connect the battery body and the plate-shaped member, and covers at least part of the plate-shaped member. The plate-shaped member includes an exposed part which is exposed from part of an end surface of the elastic member which covers the plate-shaped member in a thickness direction of the battery body.
    Type: Application
    Filed: November 6, 2012
    Publication date: October 9, 2014
    Inventors: Ryuichi Amagai, Kenichi Ochiai, Masakazu Shibuya
  • Patent number: 8828583
    Abstract: A battery module includes a plurality of flat batteries stacked upon one another in a thickness direction. The plurality of flat batteries each have an outer cover and plate-shaped electrode terminals connected. A power generating element is sealed within the outer cover of each of the plurality of flat batteries. The electrode terminals include substantially flat plates connected to the power generating element and projecting out of the outer cover in a projecting direction. The electrode terminals of the plurality of batteries are electrically connected to each other. Each of a plurality of electrically insulating spacers receives the electrode terminals of more than one of the flat batteries and the spacers are stacked in the thickness direction of the flat batteries.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: September 9, 2014
    Assignee: Nissan Motor Co. Ltd.
    Inventor: Ryuichi Amagai
  • Patent number: 8771863
    Abstract: Provided is a battery module in which a stacked body (142) of a plurality of flat batteries (144A to 144D) stacked on one another is housed. The battery module includes the flat batteries, an output terminal, a metal container, insulating plates and an insulating cover (170). Each of the flat batteries (144A to 144D) includes a power-generating element, an exterior package member for sealing the power-generating element, and electrode terminals led out from the exterior package member. The output terminal is used to provide a parallel or series connection between the electrode terminals of the plurality of flat batteries (144A to 144D) and to output power therefrom. The metal container is used to house the stacked body. The insulating plates are disposed to hold the electrode terminals of the flat batteries (144A to 144D) therebetween in such a way to insulate the electrode terminals from one another, and also include window portions through which the electrode terminals are exposed for the connection.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: July 8, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ryuichi Amagai, Naoki Aizawa, Naoto Todoroki
  • Patent number: 8747490
    Abstract: An assembling method for a battery outer case including the steps of: molding a metal container main body with notched holes formed beforehand in its body portion for exposing terminals connected to a flat battery pack; receiving a flat battery pack in the metal container main body while fitting the terminals into the notched holes; covering the metal container main body with a metal lid; and superposing an open end portion of a metal container main body and an end portion of the metal lid with each other thereby to join them to each other by double seaming.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: June 10, 2014
    Assignees: Nissan Motor Co., Ltd., Toyo Seikan Kaisha, Ltd.
    Inventors: Ryuichi Amagai, Etsuo Oogami, Seijirou Yajima, Teruo Segawa, Kazuhiko Tsukada