Patents by Inventor Koji Minamitani

Koji Minamitani 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: 20180323410
    Abstract: A power storage device includes a positive electrode part including a first metallic foil layer and a positive electrode active material layer partially laminated on one surface of the first metallic foil layer, a negative electrode part including a second metallic foil layer and a negative electrode active material layer partially laminated on one surface of the second metallic foil layer, and a separator arranged between the positive electrode part and the negative electrode part. The positive electrode active material layer is arranged between the first metallic foil layer and the separator, and the negative electrode active material layer is arranged between the second metallic foil layer and the separator. The peripheral regions of the one surfaces of the first and second metallic foil layers in which the positive and negative electrode active material layers are not formed are joined via a peripheral sealing layer containing a thermoplastic resin.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Inventors: Koji MINAMITANI, Yuji MINAMIBORI, Kensuke NAGATA, Shunsuke SAITO
  • Publication number: 20180294473
    Abstract: A first packaging material, a second packaging material, an electrode body having a positive electrode, a negative electrode, and a separator are provided. A packaging member is formed having an electrode body chamber. A first inner conducting portion allows conduction to a first metal foil and a second inner conducting portion allows conduction to a second metal foil. In the electrode body chamber, electrode body is conducted to a first inner conducting portion in the positive electrode and the electrode body is conducted to a second inner conducting portion in the negative electrode. At least one of the pair of the first metal foil and the positive electrode current collector of the positive electrode and the pair of the second metal foil and the negative electrode current collector of the negative electrode is made of the same metal.
    Type: Application
    Filed: September 8, 2016
    Publication date: October 11, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kensuke NAGATA, Koji MINAMITANI
  • Patent number: 10079374
    Abstract: A power storage device includes a positive electrode part including a first metallic foil layer and a positive electrode active material layer partially laminated on one surface of the first metallic foil layer, a negative electrode part including a second metallic foil layer and a negative electrode active material layer partially laminated on one surface of the second metallic foil layer, and a separator arranged between the positive electrode part and the negative electrode part. The positive electrode active material layer is arranged between the first metallic foil layer and the separator, and the negative electrode active material layer is arranged between the second metallic foil layer and the separator. The peripheral regions of the one surfaces of the first and second metallic foil layers in which the positive and negative electrode active material layers are not formed are joined via a peripheral sealing layer containing a thermoplastic resin.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: September 18, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Koji Minamitani, Yuji Minamibori, Kensuke Nagata, Shunsuke Saito
  • Publication number: 20180170001
    Abstract: In laminating resin layers on both surfaces of a metal foil layer by adhering a heat-resistant resin layer to a first surface of the metal foil layer and adhering a heat-sealable resin layer to a second surface thereof, as an adhering method, by employing an adhesive agent unapplied portion forming and adhering process in which the resin layer and the metal foil layer are adhered together by applying an adhesive agent to a region of a joining face of both the layers excluding a part of the region so that an adhesive agent unapplied section is formed, a laminated body having the adhesive agent unapplied section is manufactured. A resin layer removal process for removing a resin layer corresponding to the adhesive agent unapplied section of the laminated body to expose the metal foil layer is performed.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventor: Koji MINAMITANI
  • Patent number: 9925740
    Abstract: In laminating resin layers on both surfaces of a metal foil layer by adhering a heat-resistant resin layer to a first surface of the metal foil layer and adhering a heat-sealable resin layer to a second surface thereof, as an adhering method, by employing an adhesive agent unapplied portion forming and adhering process in which the resin layer and the metal foil layer are adhered together by applying an adhesive agent to a region of a joining face of both the layers excluding a part of the region so that an adhesive agent unapplied section is formed, a laminated body having the adhesive agent unapplied section is manufactured. A resin layer removal process for removing a resin layer corresponding to the adhesive agent unapplied section of the laminated body to expose the metal foil layer is performed.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 27, 2018
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Koji Minamitani
  • Publication number: 20160248052
    Abstract: In an external member, peripheral edge regions of first and second metal foil layers are joined via a periphery sealing portion containing thermoplastic resin. A plurality of bare cells are arranged separately in internal spaces surrounded by the first metal foil layer, the second metal foil layer and the periphery sealing portion. The partition region of the first metal foil layer between adjacent bare cells and the partition region of the second metal foil layer between adjacent bare cells are joined via the partition sealing portion. Thus, the internal space is partitioned into a plurality of independent individual spaces. At each individual space, the first metal foil inner exposed portion and the positive electrode portion are connected electrically, and the negative electrode portion of the second metal foil inner exposed portion and the bare cell are connected electrically. The bare cell and electrolyte are encapsulated in each individual space.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 25, 2016
    Inventor: Koji MINAMITANI
  • Publication number: 20160204394
    Abstract: A package for a power storage device includes at least one laminated packaging material having first and second sections. The packaging material includes a metallic foil layer, a heat-resistant resin layer, and a heat-fusible resin layer. In a state in which the heat-fusible resin layers of the first and second sections are faced, peripheral edges thereof are heat-sealed to form a storage chamber for accommodating a device main body. One of the sections is extended outside the storage chamber to form a conductive flange having an exposed heat-fusible resin layer. The conductive flange is provided with an external conductive section in which the heat-fusible resin layer is partially removed to expose the metallic foil layer. The packaging material having the external conductive section is provided with an internal conductive section in the storage chamber in which the heat-fusible resin layer is partially removed to expose the metallic foil layer.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 14, 2016
    Inventor: Koji Minamitani
  • Publication number: 20160049625
    Abstract: A power storage device includes a positive electrode part including a first metallic foil layer and a positive electrode active material layer partially laminated on one surface of the first metallic foil layer, a negative electrode part including a second metallic foil layer and a negative electrode active material layer partially laminated on one surface of the second metallic foil layer, and a separator arranged between the positive electrode part and the negative electrode part. The positive electrode active material layer is arranged between the first metallic foil layer and the separator, and the negative electrode active material layer is arranged between the second metallic foil layer and the separator. The peripheral regions of the one surfaces of the first and second metallic foil layers in which the positive and negative electrode active material layers are not formed are joined via a peripheral sealing layer containing a thermoplastic resin.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventors: Koji MINAMITANI, Yuji MINAMIBORI, Kensuke NAGATA, Shunsuke SAITO
  • Publication number: 20150325819
    Abstract: The electrochemical device 40 includes a device main body 60 and an armoring body 50 for accommodating the device main body 60. The armoring body 50 is constituted by a laminated armoring material in which a heat-resistant resin layer 2 is adhered to a first surface of a metal foil layer 4 and a thermal fusion resin layer 3 is adhered to a second surface of the metal foil layer 4, and metal exposed sections 54 and 56 in which the metal foil layer 4 is exposed is formed at least on the heat-resistant resin layer 2 side which is an outer side of the laminated armoring material 50.
    Type: Application
    Filed: May 4, 2015
    Publication date: November 12, 2015
    Inventor: Koji MINAMITANI
  • Publication number: 20150283790
    Abstract: In laminating resin layers on both surfaces of a metal foil layer by adhering a heat-resistant resin layer to a first surface of the metal foil layer and adhering a heat-sealable resin layer to a second surface thereof, as an adhering method, by employing an adhesive agent unapplied portion forming and adhering process in which the resin layer and the metal foil layer are adhered together by applying an adhesive agent to a region of a joining face of both the layers excluding a part of the region so that an adhesive agent unapplied section is formed, a laminated body having the adhesive agent unapplied section is manufactured. A resin layer removal process for removing a resin layer corresponding to the adhesive agent unapplied section of the laminated body to expose the metal foil layer is performed.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 8, 2015
    Inventor: Koji MINAMITANI
  • Patent number: 9029010
    Abstract: The molding packaging material 1 according to the present invention includes a heat resistant resin layer 2 as an outer layer, a thermoplastic resin layer 3 as an inner layer, a metal foil layer 4 arranged between the heat resistant resin layer and the thermoplastic resin layer, and a black ink layer 10 arranged between the metal foil layer 4 and the heat resistant resin layer 2. The black ink layer 10 contains carbon black, diamine, polyol, and hardening agent. The black ink layer does not partially crack and detach even when the molding packaging material according to the present invention is used in a somewhat harsh environment such as a hot and humid environment and/or at the time of molding or sealing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Showa Denko Packaging Co., Ltd.
    Inventors: Yuuji Minamibori, Koji Minamitani, Tetsunobu Kuramoto
  • Publication number: 20130244088
    Abstract: The molding packaging material 1 according to the present invention includes a heat resistant resin layer 2 as an outer layer, a thermoplastic resin layer 3 as an inner layer, a metal foil layer 4 arranged between the heat resistant resin layer and the thermoplastic resin layer, and a black ink layer 10 arranged between the metal foil layer 4 and the heat resistant resin layer 2. The black ink layer 10 contains carbon black, diamine, polyol, and hardening agent. The black ink layer does not partially crack and detach even when the molding packaging material according to the present invention is used in a somewhat harsh environment such as a hot and humid environment and/or at the time of molding or sealing.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Yuuji MINAMIBORI, Koji MINAMITANI, Tetsunobu KURAMOTO
  • Patent number: 8323827
    Abstract: In a laminated external packaging material for a battery according to the present invention, a metallic foil 2 is adhered to one surface side of a base film 1, and a coated film layer 4 of thermal adhesive resin having a softening point of 160° C. or below and capable of thermally bonding to a surface film of a battery main body is formed on the other surface side of the base film 1. With this laminated external packaging material for a battery, without using an adhesive tape or a hot-melt adhesive, this packaging material can be easily and assuredly bonded to the battery main body and also can be bonded firmly to an end portion reinforcing plastic component.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: December 4, 2012
    Assignee: Showa Denko Packaging Co.
    Inventors: Kazuhito Hatta, Masato Sato, Tsuyoshi Sugiyama, Hiroyuki Yamada, Tadashi Miebori, Koji Minamitani, Hiroshi Hata, Koji Miyano, Jun Tanigawa
  • Publication number: 20100040942
    Abstract: In a laminated external packaging material for a battery according to the present invention, a metallic foil 2 is adhered to one surface side of a base film 1, and a coated film layer 4 of thermal adhesive resin having a softening point of 160° C. or below and capable of thermally bonding to a surface film of a battery main body is formed on the other surface side of the base film 1. With this laminated external packaging material for a battery, without using an adhesive tape or a hot-melt adhesive, this packaging material can be easily and assuredly bonded to the battery main body and also can be bonded firmly to an end portion reinforcing plastic component.
    Type: Application
    Filed: December 14, 2006
    Publication date: February 18, 2010
    Applicant: SHOWA DENKO PACKAGING CO.
    Inventors: Kazuhito Hatta, Masato Sato, Tsuyoshi Sugiyama, Hiroyuki Yamada, Tadashi Miebori, Koji Minamitani, Hiroshi Hata, Koji Miyano, Jun Tanigawa