Patents by Inventor Shinichi Tasaki

Shinichi Tasaki 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: 20190247797
    Abstract: The gas separation membrane element contains a gas separation membrane, and a sealing portion for preventing mixture of a source gas and a specific gas permeated through a gas separation membrane. The gas separation membrane has a first porous layer including a porous membrane, and a hydrophilic resin composition layer disposed on the first porous layer. The sealing portion is a region in which a cured material of a sealant penetrates in at least the first porous layer in the gas separation membrane, and a thermal expansion coefficient A of the sealing portion and a thermal expansion coefficient B of a material forming the first porous layer satisfy a relation (I): 0.35?A/B?1.0 (I).
    Type: Application
    Filed: March 13, 2018
    Publication date: August 15, 2019
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tsutomu TASAKI, Shinichi FURUKAWA
  • Patent number: 10079409
    Abstract: A method for producing cell 1, which includes cell element 4 wherein positive electrode plate 41 and negative electrode plate 42 are laminated with an interposal of separator 43 therebetween; and outer case 5 which houses cell element 4 together with an electrolyte solution. An electrolyte solution injection step for forming cell 1 by having outer case 5 contain cell element 4 and electrolyte solution (step S1), a charging step for charging cell 1 (step S2), and an impregnation condition inspection step for inspecting an impregnation condition of the electrolyte solution into cell element 4 after charging cell 1 are conducted in the order of the electrolyte solution injection step, the charging step and the impregnation condition inspection step.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 18, 2018
    Assignees: AUTOMOTIVE ENERGY SUPPLY CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Asako Kawashima, Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Tomoyuki Nagaoka, Takeshi Yasooka, Hiroshi Ishikawa
  • Patent number: 9647297
    Abstract: According to the present invention, there is provided a seal step (ST105) storing an electrode laminate in which a separator is disposed between a positive electrode and a negative electrode and an electrolyte within an exterior body constituted by a laminate film and sealing the exterior body; a pressure application step (ST106) of applying a pressure to the exterior body in which the electrode laminate is stored by means of a flat plate press working or so forth; charge step (ST102) of charging up to a full charge; a gas removal step (ST107) of unsealing the exterior body and removing gas generated within the exterior body at the charge step; and a re-seal step (ST108) of sealing the exterior body after the gas removal step. The number of times of the gas removal steps is small and an influence of gas on battery characteristics is suppressed.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 9, 2017
    Assignees: AUTOMOTIVE ENERGY SUPPLY CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Takeshi Yasooka
  • Publication number: 20160172718
    Abstract: A method for producing cell 1, which includes cell element 4 wherein positive electrode plate 41 and negative electrode plate 42 are laminated with an interposal of separator 43 therebetween; and outer case 5 which houses cell element 4 together with an electrolyte solution. An electrolyte solution injection step for forming cell 1 by having outer case 5 contain cell element 4 and electrolyte solution (step S1), a charging step for charging cell 1 (step S2), and an impregnation condition inspection step for inspecting an impregnation condition of the electrolyte solution into cell element 4 after charging cell 1 are conducted in the order of the electrolyte solution injection step, the charging step and the impregnation condition inspection step.
    Type: Application
    Filed: June 24, 2014
    Publication date: June 16, 2016
    Applicants: Automotive Energy Supply Corporation, NISSAN MOTOR CO., LTD.
    Inventors: Asako KAWASHIMA, Shinichi TASAKI, Chika ANEMIYA, Daisuke IGA, Tomoyuki NAGAOKA, Takeshi YASOOKA, Hiroshi ISHIKAWA
  • Publication number: 20140352140
    Abstract: According to the present invention, there is provided a seal step (ST105) storing an electrode laminate in which a separator is disposed between a positive electrode and a negative electrode and an electrolyte within an exterior body constituted by a laminate film and sealing the exterior body; a pressure application step (ST106) of applying a pressure to the exterior body in which the electrode laminate is stored by means of a flat plate press working or so forth; charge step (ST102) of charging up to a full charge; a gas removal step (ST107) of unsealing the exterior body and removing gas generated within the exterior body at the charge step; and a re-seal step (ST108) of sealing the exterior body after the gas removal step. The number of times of the gas removal steps is small and an influence of gas on battery characteristics is suppressed.
    Type: Application
    Filed: January 10, 2013
    Publication date: December 4, 2014
    Applicant: NISSAN MOTOR CO., LTD
    Inventors: Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Takeshi Yasooka
  • Patent number: 8724292
    Abstract: A lithium-ion capacitor excellent in durability, which has high energy density and high capacity retention ratio when the capacitor is charged and discharged at a high load, is disclosed. The lithium-ion capacitor includes a positive electrode, a negative electrode and an aprotic organic solvent of a lithium salt as an electrolyte solution. In the lithium-ion capacitor, a positive electrode active material allows lithium ions and/or anions to be doped thereinto and de-doped therefrom, and a negative electrode active material allows lithium ions to be doped thereinto and de-doped therefrom. At least one of the negative electrode and the positive electrode is pre-doped with lithium ions so that after the positive electrode and the negative electrode are shortcircuited, a potential of the positive electrode is 2 V (relative to Li/Li+) or lower. A thickness of a positive electrode layer of the positive electrode is within a range from 18 to 108 ?m.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 13, 2014
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hiromoto Taguchi, Shinichi Tasaki, Nobuo Ando, Mitsuru Nagai, Yukinori Hatou
  • Patent number: 8685117
    Abstract: A lithium ion capacitor includes, as a lithium ion supply source, a lithium metal foil for batteries or capacitors. A current collector 4 and a separator 3 formed of a paper or resin nonwoven fabric are preliminarily pressure-bonded and integrated to opposite surfaces of a lithium metal foil 1 for batteries or capacitors.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: April 1, 2014
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinichi Tasaki, Mitsuru Nagai, Nobuo Ando
  • Patent number: 8203826
    Abstract: A lithium ion capacitor includes a positive electrode, a negative electrode, and a non-protonic organic solvent electrolytic solution of a lithium salt. A positive electrode active material is a material capable of reversibly doping a lithium ion and/or an anion. A negative electrode active material is a material capable of reversibly doping a lithium ion. The lithium ion is doped in advance to either one or both of the negative electrode and the positive electrode so that a positive electrode potential after the positive electrode and the negative electrode are short-circuited is 2.0 V (relative to Li/Li+) or less when capacitance per unit weight of the positive electrode is C+(F/g), weight of the positive electrode active material is W+(g), capacitance per unit weight of negative electrode is C?(F/g), and weight of the negative electrode active material is W?(g), a value of (C?×W?)/(C+×W+) is 5 or more.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: June 19, 2012
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Kohei Matsui, Atsuro Shirakami, Nobuo Ando, Shinichi Tasaki, Risa Miyagawa, Osamu Hatozaki, Yukinori Hato
  • Patent number: 8152865
    Abstract: An electrical storage device having a positive electrode, a negative electrode, a lithium electrode, and an electrolyte capable of transferring lithium ion, the lithium electrode is out of direct contact with the negative electrode, and lithium ion is supplied to the negative electrode by flowing a current between the lithium and negative electrode through an external circuit. A method of using the electrical storage device includes using the lithium electrode as a reference electrode, the positive electrode potential and negative electrode potential is measured, and the potential of the positive or negative electrode is controlled during charging or discharging. The potentials of the positive electrode and negative electrode are monitored to easily determine whether deterioration of the electrical storage device is caused by the positive or negative electrode.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: April 10, 2012
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Nobuo Ando, Shinichi Tasaki, Yukinori Hato, Chisato Marumo
  • Patent number: 8098480
    Abstract: A lithium ion capacitor includes a positive electrode made of a material capable of reversibly carrying either one or both of a lithium ion and an anion, a negative electrode made of a material capable of reversibly carrying a lithium ion, and an electrolytic solution made of a non-protonic organic solvent electrolytic solution of a lithium salt. A negative electrode active material is non-graphitizable carbon having a ratio of number of hydrogen atoms to number of carbon atoms of zero or more and less than 0.05. The lithium ion is doped in advance to either one or both of the negative electrode and the positive electrode so that a negative electrode potential when a cell is discharged to a voltage one half a charging voltage of the cell is 0.15 V or less relative to a lithium ion potential.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: January 17, 2012
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Nobuo Ando, Kenji Kojima, Shinichi Tasaki, Hiromoto Taguchi, Kohei Matsui, Atsuro Shirakami, Yukinori Hato
  • Patent number: 8004823
    Abstract: A lithium ion capacitor includes a positive electrode made of a material capable of reversibly doping and dedoping lithium ions and/or anions; a negative electrode made of a material capable of reversibly doping and dedoping lithium ions; and an electrolytic solution made of an aprotonic organic solvent electrolyte solution of a lithium salt. When the negative electrode and/or positive electrode and a lithium ion supply source are electrochemically brought into contact, lithium ions are doped in a negative electrode and/or positive electrode. A positive electrode potential after the positive electrode and negative electrode are short-circuited is 2.0 V (vs. Li/Li+) or less. The positive electrode and/or negative electrode has a current collector made of a metal foil that has many holes that penetrate through both sides and have an average diameter of inscribed circles of the through-holes of 100 ?m or less.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 23, 2011
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hiromoto Taguchi, Nobuo Ando, Hideki Shibuya, Shinichi Tasaki, Risa Miyagawa, Yukinori Hato, Osamu Hatozaki
  • Publication number: 20110041324
    Abstract: An electrical storage device having a positive electrode, a negative electrode, a lithium electrode, and an electrolyte capable of transferring lithium ion, the lithium electrode is out of direct contact with the negative electrode, and lithium ion is supplied to the negative electrode by flowing a current between the lithium and negative electrode through an external circuit. A method of using the electrical storage device includes using the lithium electrode as a reference electrode, the positive electrode potential and negative electrode potential is measured, and the potential of the positive or negative electrode is controlled during charging or discharging. The potentials of the positive electrode and negative electrode are monitored to easily determine whether deterioration of the electrical storage device is caused by the positive or negative electrode.
    Type: Application
    Filed: August 24, 2010
    Publication date: February 24, 2011
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Nobuo Ando, Shinichi Tasaki, Yukinori Hato, Chisato Marumo
  • Patent number: 7817403
    Abstract: A lithium ion capacitor having high energy density, high output density, high capacity and high safety includes a positive electrode made of a material capable of being reversibly doped with lithium ions and/or anions, a negative electrode made of a material capable of being reversively doped with lithium ions, and an aprotic organic solution of a lithium salt as an electrolytic solution. Wherein, the positive electrode and the negative electrode are laminated or wound with a separator interposed between them, the area of the positive electrode is smaller than the area of the negative electrode. The face of the positive electrode is substantially covered by the face of the negative electrode when they are laminated or wound.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 19, 2010
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinichi Tasaki, Mitsuru Nagai, Hiromoto Taguchi, Kohei Matsui, Risa Takahata, Kenji Kojima, Nobuo Ando, Yukinori Hato, Osamu Hatozaki
  • Patent number: 7768769
    Abstract: A lithium ion capacitor having a high capacity retention at the time of continuous charge at a high temperature and excellent durability. The lithium ion capacitor includes a positive electrode, a negative electrode and an aprotic organic solvent electrolyte solution of a lithium salt as an electrolytic solution. The positive electrode active material is a material capable of reversibly supporting lithium ions and/or anions, a negative electrode active material is a material capable of reversibly supporting lithium ions, the negative electrode and/or the positive electrode is doped with lithium ions so that the potential of the positive electrode is at most 2.0 V after the positive electrode and the negative electrode are short-circuited, and the electrolytic solution contains vinylene carbonate or its derivative.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: August 3, 2010
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Kohei Matsui, Risa Takahata, Nobuo Ando, Atsuro Shirakami, Shinichi Tasaki, Yukinori Hato
  • Patent number: 7733629
    Abstract: A lithium ion capacitor including a positive electrode, a negative electrode, and an aprotic organic solvent solution of a lithium salt as an electrolytic solution. The positive electrode active material is capable of reversibly supporting lithium ions and/or anions, the negative electrode active material is capable of reversibly supporting lithium ions and anions, and the potentials of the positive electrode and the negative electrode are at most 2.0 V after the positive electrode and the negative electrode are short-circuited. The positive electrode and the negative electrode are alternately laminated with a separator interposed therebetween to constitute an electrode unit, the cell is constituted by at least two such electrode units, lithium metal is disposed between the electrode units, and lithium ions are preliminarily supported by the negative electrode and/or the positive electrode by electrochemical contact of the lithium metal with the negative electrode and/or the positive electrode.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: June 8, 2010
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinichi Tasaki, Nobuo Ando, Mitsuru Nagai, Atsuro Shirakami, Kohei Matsui, Yukinori Hato
  • Publication number: 20100128415
    Abstract: A lithium ion capacitor includes a positive electrode made of a material capable of reversibly carrying either one or both of a lithium ion and an anion, a negative electrode made of a material capable of reversibly carrying a lithium ion, and an electrolytic solution made of a non-protonic organic solvent electrolytic solution of a lithium salt. A negative electrode active material is non-graphitizable carbon having a ratio of number of hydrogen atoms to number of carbon atoms of zero or more and less than 0.05. The lithium ion is doped in advance to either one or both of the negative electrode and the positive electrode so that a negative electrode potential when a cell is discharged to a voltage one half a charging voltage of the cell is 0.15 V or less relative to a lithium ion potential.
    Type: Application
    Filed: October 17, 2006
    Publication date: May 27, 2010
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Nobuo Ando, Kenji Kojima, Shinichi Tasaki, Hiromoto Taguchi, Kohei Matsui, Atsuro Shirakami, Yukinori Hato
  • Patent number: 7697264
    Abstract: It is to provide a lithium ion capacitor having a high energy density, a high output density, a large capacity and high safety. A lithium ion capacitor comprising a positive electrode, a negative electrode and an aprotic organic solvent solution of a lithium salt as an electrolytic solution, wherein a positive electrode active material is a material capable of reversibly supporting lithium ions and anions, a negative electrode active material is a material capable of reversibly supporting lithium ions, and the potentials of the positive electrode and the negative electrode are at most 2.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: April 13, 2010
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinichi Tasaki, Nobuo Ando, Mitsuru Nagai, Atsuro Shirakami, Kohei Matsui, Yukinori Hato
  • Publication number: 20100027195
    Abstract: A lithium ion capacitor includes a positive electrode made of a material capable of reversibly doping and dedoping lithium ions and/or anions; a negative electrode made of a material capable of reversibly doping and dedoping lithium ions; and an electrolytic solution made of an aprotonic organic solvent electrolyte solution of a lithium salt. When the negative electrode and/or positive electrode and a lithium ion supply source are electrochemically brought into contact, lithium ions are doped in a negative electrode and/or positive electrode. A positive electrode potential after the positive electrode and negative electrode are short-circuited is 2.0 V (vs. Li/Li+) or less. The positive electrode and/or negative electrode has a current collector made of a metal foil that has many holes that penetrate through both sides and have an average diameter of inscribed circles of the through-holes of 100 ?m or less.
    Type: Application
    Filed: November 13, 2006
    Publication date: February 4, 2010
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiromoto Taguchi, Nobuo Ando, Hideki Shibuya, Shinichi Tasaki, Risa Miyagawa, Yukinori Hato, Osamu Hatozaki
  • Publication number: 20090246626
    Abstract: A lithium ion capacitor includes, as a lithium ion supply source, a lithium metal foil for batteries or capacitors. A current collector 4 and a separator 3 formed of a paper or resin nonwoven fabric are preliminarily pressure-bonded and integrated to opposite surfaces of a lithium metal foil 1 for batteries or capacitors.
    Type: Application
    Filed: December 12, 2006
    Publication date: October 1, 2009
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Shinichi Tasaki, Mitsuru Nagai, Nobuo Ando
  • Publication number: 20090174986
    Abstract: It is to provide a lithium ion capacitor having a high capacity retention at the time of continuous charge at a high temperature and excellent in durability. A lithium ion capacitor comprising a positive electrode, a negative electrode and an aprotic organic solvent electrolyte solution of a lithium salt as an electrolytic solution, characterized in that a positive electrode active material is a material capable of reversibly supporting lithium ions and/or anions, a negative electrode active material is a material capable of reversibly supporting lithium ions, the negative electrode and/or the positive electrode is doped with lithium ions so that the potential of the positive electrode is at most 2.0 V after the positive electrode and the negative electrode are short-circuited, and the electrolytic solution contains vinylene carbonate or its derivative.
    Type: Application
    Filed: October 28, 2005
    Publication date: July 9, 2009
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kohei Matsui, Risa Takahata, Nobuo Ando, Atsuro Shirakami, Shinichi Tasaki, Yukinori Hato