Patents by Inventor Takanobu Yamada

Takanobu Yamada 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: 10741842
    Abstract: A solid-state battery including a cathode, an anode, and a solid-state electrolyte layer including a solid-state electrolyte, wherein the solid-state electrolyte layer is disposed between the cathode and the anode, wherein the anode includes an anode active material, a first binder, and a second binder, the first binder is inactive to the solid-state electrolyte, the second binder has a tensile modulus greater than a tensile modulus of the first binder, and the second binder has a binding force which is greater than a binding force of the first binder.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Koji Hoshiba, Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara
  • Publication number: 20200227737
    Abstract: A lithium ion secondary battery suppressed in heat generation entailed by charging and discharging is provided. A lithium ion secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector, a positive electrode active material layer provided at some part of the surface of the positive electrode collector, and including a positive electrode active material, and an insulation layer provided so as to be at the other part of the surface of the positive electrode collector and to be adjacent to the positive electrode active material layer. The insulation layer includes an inorganic filler, LPO, and a binder.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 16, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takanobu YAMADA, Masaki KATO
  • Patent number: 10501060
    Abstract: A braking control device for a vehicle is provided, which includes an operating amount detecting part configured to detect an operating amount of a brake pedal, a reaction-force giving part configured to generate a reaction force of the brake pedal, a braking-force generating part configured to generate a braking force for wheels, and an ECU electrically connected with them and configured to control the reaction-force giving part and the braking-force generating part, and set a braking characteristic in which the reaction force according to a stepping force of the brake pedal and a deceleration of the vehicle have a logarithmic relationship, and when the reaction force is above a given reaction force. The ECU controls the braking-force generating part based on the braking characteristic while making the deceleration for the reaction force higher than the logarithmic relationship.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 10, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Kazuhiro Takemura, Naoki Yamada, Yuta Tango, Shinichi Kaihara, Noboru Kyuto, Hirotaka Mochizuki, Takanobu Kamura
  • Publication number: 20190214677
    Abstract: An all-solid secondary battery, including: a first current collector; a pair of first active material layers disposed on opposite sides of the first current collector; a pair of solid electrolyte layers disposed on surfaces of the pair of first active material layers; a pair of second active material layers disposed on surfaces of the pair of solid electrolyte layers; and a pair of second current collectors disposed on surfaces of the pair of second active material layers, wherein a surface of one of the pair of second current collectors opposite to a surface of one of the pair of second active material layers does not comprise protrusions having a height of greater than about 8 micrometers.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Inventors: Takanobu YAMADA, Shiratsuchi TOMOYUKI, Koji YOSHIDA, Ryo OMODA
  • Publication number: 20190190064
    Abstract: An all-solid secondary battery, comprising: a cell comprising a positive electrode active material layer, a negative electrode active material comprising at least one of lithium metal and a lithium-containing alloy, and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, wherein a ratio of volume density to true density of the positive electrode active material layer is about 0.6 or greater, wherein a ratio of volume density to true density of the solid electrolyte layer is about 0.6 or greater, and wherein an average pressure applied to opposite sides of the solid electrolyte layer in a fully discharged state is greater than 0 megapascals and 7.5 megapascals or less.
    Type: Application
    Filed: September 27, 2018
    Publication date: June 20, 2019
    Inventors: Satoshi FUJIKI, Takanobu YAMADA, Taku WATANABE, Yuichi AIHARA, Shiratsuchi TOMOYUKI
  • Publication number: 20190157723
    Abstract: An all-solid-state secondary battery including: a cathode including a cathode active material layer; an anode including an anode current collector, and an anode active material layer on the anode current collector, wherein the anode active material layer includes an anode active material which is alloyable with lithium or forms a compound with lithium; and a solid electrolyte layer between the cathode and the anode, wherein a ratio of an initial charge capacity (b) of the anode active material layer to an initial charge capacity (a) of the cathode active material layer satisfies a condition of Equation 1: 0.01<(b/a)<0.5, wherein a is the initial charge capacity of the cathode active material layer determined from a first open circuit voltage to a maximum charging voltage, and b is the initial charge capacity of the anode active material layer determined from a second open circuit voltage to 0.01 volts vs. Li/Li+.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Inventors: Naoki SUZUKI, Nobuyoshi YASHIRO, Takanobu YAMADA, Yuichi AIHARA
  • Publication number: 20190044146
    Abstract: A lithium secondary battery including: a positive electrode, a negative electrode, and a sulfide solid electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive active material particle and a coating film including an oxide including lithium (Li) and zirconium (Zr) on a surface of the positive active material particle.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: Seitaro ITO, Satoshi FUJIKI, Takanobu YAMADA, Yuichi AIHARA
  • Patent number: 10186730
    Abstract: An electrolyte for a secondary battery, the electrolyte including: an organic solvent; and a lithium ion conductive solid electrolyte represented by the formula LiaPbSc wherein 3<a<5, 1<b<3, and 6<c<8, and wherein at least a portion of the solid electrolyte is dissolved in the organic solvent.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ryo Omoda, Yuichi Aihara, Seitaro Ito, Takanobu Yamada
  • Patent number: 10168389
    Abstract: A lithium ion secondary battery including a cathode layer, an anode layer including an anode active material and a coating including a metal element, wherein the coating is disposed on the anode active material; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the coating has an electrochemical reaction potential with lithium that is greater than an electrochemical reaction potential of the anode active material with lithium.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara, Naoki Suzuki
  • Publication number: 20180351159
    Abstract: An all-solid secondary battery including: a cathode including a cathode active material layer; an anode including an anode active material layer; and a solid electrolyte layer including a sulfide solid electrolyte between the cathode active material layer and the anode active material layer, wherein an arithmetic mean roughness (Ra) of an interface between the cathode active material layer and the solid electrolyte layer is about 1 micrometer or less, and a relative density of the solid electrolyte layer is about 80% or more.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Inventors: Satoshi FUJIKI, Takanobu YAMADA, Tomoyuki SHIRATSUCHI, Yuichi AIHARA
  • Patent number: 10128507
    Abstract: A lithium secondary battery including: a positive electrode, a negative electrode, and a sulfide solid electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive active material particle and a coating film including an oxide including lithium (Li) and zirconium (Zr) on a surface of the positive active material particle.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: November 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seitaro Ito, Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara
  • Patent number: 10050265
    Abstract: A positive electrode for an alkali metal-sulfur battery, the positive electrode including: a porous conductive material layer including a plurality of nanocarbon structures of a conductive material, wherein the conductive material defines a plurality of pores between the plurality of nanocarbon structures of the conductive material; sulfur, which is contained in the plurality of pores of the porous conductive material layer; and a polymer film disposed directly on at least a portion of the porous conductive material layer.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 14, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., ULVAC, INC.
    Inventors: Ryo Omoda, Takanobu Yamada, Haruhisa Nakano, Hirohiko Murakami, Naoki Tsukahara, Tatsuhiro Nozue, Yoshiaki Fukuda, Yuichi Aihara
  • Publication number: 20180226633
    Abstract: An anode for an all solid-state secondary battery, the anode including an anode collector, and coating lithium distribution layer disposed on the anode collector, wherein the lithium distribution layer includes a metal capable of forming an alloy with lithium.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 9, 2018
    Inventors: Satoshi FUJIKI, Seitaro ITO, Taku WATANABE, Yuichi AIHARA, Takanobu YAMADA
  • Patent number: 9843038
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: December 12, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takanobu Yamada, Yasuaki Matsuda, Masaki Matsui, Yuichi Aihara, Nobuyuki Imanishi
  • Patent number: 9837684
    Abstract: A solid state battery includes: a negative electrode layer including a negative electrode active material; a positive electrode layer including a positive electrode active material; and a solid electrolyte layer installed between the negative electrode layer and the positive electrode layer, wherein the solid electrolyte layer contacts the negative electrode layer and the positive electrode layer, and wherein the solid state battery satisfies Equation 1: {(Vp?V980)/Vp×100}?3%??Equation 1 wherein Vp is a total volume of the negative electrode layer, the positive electrode layer, and the solid electrolyte layer, and V980 is a total volume of the negative electrode layer, the positive electrode layer, and the solid electrolyte layer under the total pressure of about 980 megapascals.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takanobu Yamada, Yuichi Aihara
  • Publication number: 20170179481
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Inventors: Takanobu YAMADA, Yasuaki MATSUDA, Masaki MATSUI, Yuichi AIHARA, Nobuyuki IMANISHI
  • Patent number: 9608288
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takanobu Yamada, Yasuaki Matsuda, Masaki Matsui, Yuichi Aihara, Nobuyuki Imanishi
  • Publication number: 20170018802
    Abstract: An electrolyte for a secondary battery, the electrolyte including: an organic solvent; and a lithium ion conductive solid electrolyte represented by the formula LiaPbSc wherein 3<a<5, 1<b<3, and 6<c<8, and wherein at least a portion of the solid electrolyte is dissolved in the organic solvent.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 19, 2017
    Inventors: Ryo OMODA, Yuichi AIHARA, Seitaro ITO, Takanobu YAMADA
  • Publication number: 20160248120
    Abstract: A solid state battery includes: a negative electrode layer including a negative electrode active material; a positive electrode layer including a positive electrode active material; and a solid electrolyte layer installed between the negative electrode layer and the positive electrode layer, wherein the solid electrolyte layer contacts the negative electrode layer and the positive electrode layer, and wherein the solid state battery satisfies Equation 1: {(Vp?V980)/Vp×100}?3% ??Equation 1 wherein Vp is a total volume of the negative electrode layer, the positive electrode layer, and the solid electrolyte layer, and V980 is a total volume of the negative electrode layer, the positive electrode layer, and the solid electrolyte layer under the total pressure of about 980 megapascals.
    Type: Application
    Filed: February 11, 2016
    Publication date: August 25, 2016
    Inventors: Takanobu YAMADA, Yuichi AIHARA
  • Patent number: 9425459
    Abstract: Provided are an electrode for solid-state batteries, a method of preparing the electrode, a solid-state battery including the electrode, and a bonding film used for the method of preparing the electrode. The electrode for solid-state batteries include a bonding layer interposed between an electrode layer and a current collecting member and bound to the electrode layer, where the bonding layer includes a first binder which is inactive to the solid electrolyte, a second binder which has a stronger binding ability to the current collecting member than a bonding strength of the first binder to the current collecting member; and a bonding layer conductive material.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Koji Hoshiba, Takanobu Yamada