Patents by Inventor Nobuhiro Inoue

Nobuhiro Inoue 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: 11958101
    Abstract: A method for manufacturing a forged article, capable of improving the durability of a die for forging is provided. The method, includes forging a steel material, by using a die, by spraying or applying a water-soluble polymer lubricant containing 0.01 to 0.98 mass % of a water-soluble sulfate onto a working surface of the die, the die being made of a raw material having a constituent composition of by mass %, of 0.4 to 0.7% of C, 1.0% or less of Si, 1.0% or less of Mn, 4.0 to 6.0% of Cr, 2.0 to 4.0% of (Mo+½W), 0.5 to 2.5% of (V+Nb), 0 to 1.0% of Ni, 0 to 5.0% of Co, 0.02% or less of N, and a remnant composed of Fe and impurities, and having hardness of 55 to 60 HRC, and the die including a nitrided layer or a nitrosulfidized layer on the working surface thereof.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 16, 2024
    Assignees: PROTERIAL, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIDO CHEMICAL CO., LTD., UMETOKU CO., LTD
    Inventors: Tatsuya Shouji, Shuho Koseki, Kenichi Inoue, Katsuhiro Obata, Satoshi Murakami, Naoki Hayashi, Yoshikazu Suzuki, Toshifumi Miyamoto, Toru Otomo, Nobuhiro Ikeda, Kousuke Uda, Takashi Ogisu
  • Publication number: 20230378473
    Abstract: Described herein is a positive electrode comprising an active material particle, an acetylene black particle and net-like graphene. The positive electrode can be used in a battery.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 23, 2023
    Inventors: Hiroatsu TODORIKI, Junpei MOMO, Teppei OGUNI, Nobuhiro INOUE
  • Publication number: 20230361271
    Abstract: A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 9, 2023
    Inventors: Shunpei YAMAZAKI, Teppei OGUNI, Tamae MORIWAKA, Junpei MOMO, Ryota TAJIMA, Nobuhiro INOUE
  • Publication number: 20230327207
    Abstract: A storage battery includes positive and negative electrodes and an electrolytic solution. The negative electrode includes a first element and carbon. The first element is any of silicon, tin, gallium, aluminum, germanium, lead, antimony, bismuth, silver, zinc, cadmium, and indium. The negative electrode includes an active material and a first layer in contact with a surface of the active material. The first layer has a thickness of 10 nm to 1000 nm inclusive. The electrolytic solution contains first and second cations. The first cation is one or more of a lithium ion, a sodium ion, a calcium ion, and a magnesium ion. The second cation is an imidazolium cation or a tertiary sulfonium cation.
    Type: Application
    Filed: May 1, 2023
    Publication date: October 12, 2023
    Inventors: Nobuhiro INOUE, Masaki YAMAKAJI, Jun ISHIKAWA, Kazuhei NARITA
  • Patent number: 11699782
    Abstract: A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: July 11, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Teppei Oguni, Tamae Moriwaka, Junpei Momo, Ryota Tajima, Nobuhiro Inoue
  • Publication number: 20230216019
    Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Inventors: Nobuhiro INOUE, Sachiko KATANIWA, Kazutaka KURIKI, Junpei MOMO
  • Patent number: 11677073
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: June 13, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Nobuhiro Inoue, Kiyofumi Ogino
  • Patent number: 11605804
    Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering pan of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: March 14, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Nobuhiro Inoue, Sachiko Kataniwa, Kazutaka Kuriki, Junpei Momo
  • Patent number: 11489148
    Abstract: An object of one embodiment of the present invention is to provide a secondary battery in which deterioration of charge-discharge cycle characteristics is suppressed, to suppress generation of defects caused by expansion and contraction of an active material in a negative electrode, or to prevent deterioration caused by deformation of a secondary battery. To prevent deterioration, a material that can be alloyed with lithium and fluidified easily is used for a negative electrode. To hold a negative electrode active material over a surface of a current collector, a covering layer that covers the negative electrode active material is provided. Furthermore, a portion where the current collector and the negative electrode active material are in contact with each other is alloyed. In other words, an alloy that is in contact with both the current collector and the negative electrode active material is provided in the negative electrode.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 1, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Nobuhiro Inoue, Ryota Tajima, Naoki Kurihara, Junpei Momo
  • Patent number: 11444324
    Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution where (A) the electrolytic solution contains a solvent and an electrolyte salt, the solvent containing ethylene carbonate, (B) a content of the electrolyte salt is from 0.8 mol/kg to 2.0 mol/kg both inclusive, (C) a content of the ethylene carbonate in the solvent is from 10 wt % to 30 wt % both inclusive, (D) a ratio M2/M1 of a number M2 of moles of the ethylene carbonate to a number M1 of moles of the electrolyte salt is from 0.4 to 2.4 both inclusive, and (E) the electrolytic solution contains at least one of sulfone compounds.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: September 13, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yusuke Morino, Izaya Okae, Nobuhiro Inoue, Kazumasa Takeshi
  • Publication number: 20220263119
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Inventors: Tomoya FUTAMURA, Tamae MORIWAKA, Takahiro KAWAKAMI, Junpei MOMO, Nobuhiro INOUE
  • Patent number: 11335945
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 17, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Tomoya Futamura, Tamae Moriwaka, Takahiro Kawakami, Junpei Momo, Nobuhiro Inoue
  • Publication number: 20220037639
    Abstract: An electrode structure includes active material particles, and a covering film having an insulating property. The active material particles are connected to each other and form a porous structure having voids. The covering film has a thickness of less than or equal to 1 nanometer, and covers at least some of inner wall faces of the active material particles. The inner wall faces are located inside the voids.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Inventor: Nobuhiro INOUE
  • Publication number: 20210408516
    Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering pan of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
    Type: Application
    Filed: July 1, 2021
    Publication date: December 30, 2021
    Inventors: Nobuhiro INOUE, Sachiko KATANIWA, Kazutaka KURIKI, Junpei MOMO
  • Patent number: 11056678
    Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor: thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: July 6, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Sachiko Kataniwa, Kazutaka Kuriki, Junpei Momo
  • Publication number: 20210057738
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Inventors: Nobuhiro INOUE, Kiyofumi OGINO
  • Patent number: 10875327
    Abstract: A printer includes a first blade configured to be movable between a standby position and a cutting position, a second blade configured to contact the first blade located in the cutting position, a drive mechanism configured to drive the first blade, and a first elastic member configured to pull the first blade located in the cutting position. When the first blade is located in the cutting position, the first elastic member pulls the first blade in a direction in which the first blade moves to the standby position, and pulls the first blade in a direction in which the first blade approaches the second blade.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Nobuhiro Inoue, Tetsugo Ishida
  • Patent number: 10847791
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 24, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Kiyofumi Ogino
  • Publication number: 20200321605
    Abstract: A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Shunpei YAMAZAKI, Teppei OGUNI, Tamae MORIWAKA, Junpei MOMO, Ryota TAJIMA, Nobuhiro INOUE
  • Publication number: 20200280101
    Abstract: A storage battery includes positive and negative electrodes and an electrolytic solution. The negative electrode includes a first element and carbon. The first element is any of silicon, tin, gallium, aluminum, germanium, lead, antimony, bismuth, silver, zinc, cadmium, and indium. The negative electrode includes an active material and a first layer in contact with a surface of the active material. The first layer has a thickness of 10 nm to 1000 nm inclusive. The electrolytic solution contains first and second cations. The first cation is one or more of a lithium ion, a sodium ion, a calcium ion, and a magnesium ion. The second cation is an imidazolium cation or a tertiary sulfonium cation.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Nobuhiro INOUE, Masaki YAMAKAJI, Jun ISHIKAWA, Kazuhei NARITA