Patents by Inventor Makiko Takahashi

Makiko Takahashi 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: 20240297348
    Abstract: Provided is a solid battery comprising an electrode laminate including a porous substrate having a meandering shape, wherein the porous substrate includes adjacent flat portions that are connected by folded portions that are interposed therebetween, the flat portions each include a solid electrolyte layer that is filled with a solid electrolyte, and in the electrode laminate, each of the flat portions has a positive electrode disposed on one surface thereof and a negative electrode disposed on the other surface thereof, the positive electrode including a positive electrode current collector sandwiched between positive electrode mixture layers, the negative electrode including a negative electrode current collector sandwiched between negative electrode mixture layers.
    Type: Application
    Filed: February 23, 2024
    Publication date: September 5, 2024
    Inventor: Makiko TAKAHASHI
  • Publication number: 20240266622
    Abstract: A minute short circuit detection device that detects whether a minute short circuit has occurred in a battery unit including a positive electrode layer, an electrolyte layer, and a negative electrode layer includes: a voltage detecting unit configured to detect a voltage of the battery unit; a current detecting unit configured to detect a current flowing in the battery unit; a storage device configured to store a program; and a hardware processor. The hardware processor is configured to execute the program stored in the storage device to determine whether a minute short circuit has occurred in the battery unit on the basis of a detection result of the voltage or the current. The hardware processor determines whether the minute short circuit has occurred on the basis of the detection result of the current and a sign of a voltage applied to the battery unit in a dormant state.
    Type: Application
    Filed: January 24, 2024
    Publication date: August 8, 2024
    Inventors: Takuya Taniuchi, Toshimitsu Tanaka, Makiko Takahashi, Ryo Shimizu, Kizashi Iwakiri
  • Patent number: 11942623
    Abstract: Provided are a negative electrode that is for use in a non-aqueous electrolyte secondary battery, includes a porous metal body as a current collector, contains a skeleton-forming agent highly infiltrated in the current collector so that it is less likely to suffer from structural degradation and provides improved cycle durability; and a non-aqueous electrolyte secondary battery including such a negative electrode. The negative electrode for use in a non-aqueous electrolyte secondary battery includes a current collector including a porous metal body; a first negative electrode material disposed in pores of the porous metal body and including a conductive aid, a binder, and a negative electrode active material including a silicon-based material; and a second negative electrode material disposed in pores of the porous metal body and including a skeleton-forming agent including a silicate having a siloxane bond.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: March 26, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kiyoshi Tanaami, Toshimitsu Tanaka, Yuji Isogai, Makiko Takahashi, Shintaro Aoyagi, Takashi Mukai, Yuta Ikeuchi, Taichi Sakamoto, Naoto Yamashita
  • Patent number: 11870074
    Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode that can suppress a deterioration in durability and improve energy density, and a non-aqueous electrolyte secondary battery including the same. A non-aqueous electrolyte secondary battery negative electrode, comprising: a collector formed of a porous metal body, and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises a negative electrode active material formed of a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductivity aid, and a binder.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: January 9, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kiyoshi Tanaami, Makiko Takahashi, Tomohiro Kinoshita, Shintaro Aoyagi, Yuji Isogai, Takashi Mukai, Yuta Ikeuchi, Taichi Sakamoto, Naoto Yamashita
  • Patent number: 11479399
    Abstract: There is provided a container that makes it possible to suppress intrusion of bacteria from the tip of a pleat part into the inside of the container. The container includes: a main body that includes a body part defining a containing portion and a flange part extending outward from an upper portion of the body part; and a lid that is joined to the flange part of the main body via an outer edge seal portion so as to cover the containing portion, the lid being formed by a lid member folded back at a fold-back portion such that portions of the lid member overlap each other. The lid has: a pleat part that includes the portions of the lid member overlapping each other and that extends from an edge of one side to an edge of the other side of the lid in a first direction; and a first lid part and a second lid part that are formed by the lid member and that are arranged on opposite sides of the pleat part.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 25, 2022
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Makiko Takahashi, Kaoru Watanabe, Hiroshi Ishikawa, Satoshi Takimoto
  • Publication number: 20220246919
    Abstract: To provide a negative electrode for nonaqueous electrolyte secondary batteries, by which durability deterioration and structural deterioration of the electrode is suppressed, and cycle durability and energy density can be improved by suppressing generation of voids in the inside of the porous metal, and a nonaqueous electrolyte secondary battery including the same. A negative electrode for nonaqueous electrolyte secondary batteries, having a current collector made of porous metal, and a negative electrode material placed in pores of the porous metal, the negative electrode material including a first negative electrode active material placed on an internal surface of each of the pores and including a silicon-based material; a skeleton forming agent placed on the first negative electrode active material and including a silicate having a siloxane bond; and a second negative electrode active material placed on the skeleton forming agent.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 4, 2022
    Inventors: Kiyoshi TANAAMI, Toshimitsu TANAKA, Yuji ISOGAI, Makiko TAKAHASHI, Shintaro AOYAGI, Takashi MUKAI, Yuta IKEUCHI, Taichi SAKAMOTO, Naoto YAMASHITA
  • Publication number: 20220246905
    Abstract: Provided are a negative electrode that is for use in a non-aqueous electrolyte secondary battery, includes a porous metal body as a current collector, contains a skeleton-forming agent highly infiltrated in the current collector so that It is less likely to suffer from structural degradation and provides improved cycle durability; and a non-aqueous electrolyte secondary battery including such a negative electrode. The negative electrode for use in a non-aqueous electrolyte secondary battery includes a current collector including a porous metal body; a first negative electrode material disposed in pores of the porous metal body and including a conductive aid, a binder, and a negative electrode active material including a silicon-based material; and a second negative electrode material disposed in pores of the porous metal body and including a skeleton-forming agent including a silicate having a siloxane bond.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 4, 2022
    Inventors: Kiyoshi Tanaami, Toshimitsu Tanaka, Yuji Isogai, Makiko Takahashi, Shintaro Aoyagi, Takashi Mukai, Yuta Ikeuchi, Taichi Sakamoto, Naoto Yamashita
  • Publication number: 20220231299
    Abstract: To provide a nonaqueous electrolyte secondary battery which enables to suppress durability deterioration, improve energy density, and further suppress a decrease in the function of the nonaqueous electrolyte secondary battery cell. A nonaqueous electrolyte secondary battery, comprising: a positive electrode; and a negative electrode, wherein the negative electrode has: a current collector comprising a porous metal body; and a negative electrode material disposed in pores of the porous metal body, the negative electrode material comprises a negative electrode active material comprising a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductive auxiliary, and a binder, and a content of the skeleton-forming agent in an outside in a surface direction of the negative electrode is higher than a content of the skeleton-forming agent in an inside in the surface direction of the negative electrode.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 21, 2022
    Inventors: Kiyoshi Tanaami, Toshimitsu Tanaka, Yuji Isogai, Shintaro Aoyagi, Makiko Takahashi, Tomohiro Kinoshita, Takashi Mukai, Yuta Ikeuchi, Taichi Sakamoto, Naoto Yamashita
  • Publication number: 20220151985
    Abstract: An immunostimulator that comprises a compound represented by general formula I (wherein n stands for an integer of 4-12) or a pharmacologically acceptable salt thereof as an active ingredient.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 19, 2022
    Inventors: Keima ABE, Hiroshi NISHIOKA, Sho TAKANO, Makiko TAKAHASHI, Hideyuki MATSUURA
  • Publication number: 20220013783
    Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode that can suppress a deterioration in durability and improve energy density, and a non-aqueous electrolyte secondary battery including the same. A non-aqueous electrolyte secondary battery negative electrode, comprising: a collector formed of a porous metal body, and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises a negative electrode active material formed of a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductivity aid, and a binder.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Inventors: Kiyoshi TANAAMI, Makiko TAKAHASHI, Tomohiro KINOSHITA, Shintaro AOYAGI, Yuji ISOGAI, Takashi MUKAI, Yuta IKEUCHI, Taichi SAKAMOTO, Naoto YAMASHITA
  • Publication number: 20210288325
    Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode which can improve a battery life as compared with a conventional one, a non-aqueous electrolyte secondary battery including it and a method for manufacturing it. A non-aqueous electrolyte secondary battery negative electrode includes: a collector; and a negative electrode layer formed on the collector, the negative electrode layer includes a negative electrode active material, a conductivity aid, a binder and a skeleton-forming agent including a silicate having a siloxane bond or a phosphate having a phosphate bond and the skeleton-forming agent is arranged on at least the interface of the negative electrode layer with the collector.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 16, 2021
    Inventors: Makiko Takahashi, Kiyoshi Tanaami, Tomohiro Kinoshita, Shintaro Aoyagi, Takashi Mukai, Yuta Ikeuchi, Taichi Sakamoto, Naoto Yamashita
  • Publication number: 20210288328
    Abstract: To provide an electrode for a lithium ion secondary battery being an electrode for obtaining a lithium ion secondary battery including a foamed metal as a current collector and having a high energy density, and further capable of improving durability and input/output characteristics (output density), and a lithium ion secondary battery using the electrode for a lithium ion secondary battery. A porous coating layer is disposed on an electrode layer of the electrode for a lithium ion secondary battery using a current collector made of a foamed metal, an electrolytic solution extruded from the electrode layer due to expansion of a negative electrode active material can be absorbed and trapped in the coating layer.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 16, 2021
    Inventors: Kiyoshi TANAAMI, Yuji ISOGAI, Makiko TAKAHASHI, Shintaro AOYAGI
  • Publication number: 20210288323
    Abstract: An object is to provide a non-aqueous electrolyte secondary battery negative electrode material which can improve a battery life as compared with a conventional one, a non-aqueous electrolyte secondary battery negative electrode including such a negative electrode material and a non-aqueous electrolyte secondary battery including such a negative electrode. A non-aqueous electrolyte secondary battery negative electrode material that includes a negative electrode active material formed of a silicon-based material a skeleton-forming agent including a silicate having a siloxane bond and an interface layer formed in an interface between the negative electrode active material and the skeleton-forming agent and formed of an inorganic material, a non-aqueous electrolyte secondary battery negative electrode including it and a non-aqueous electrolyte secondary battery are provided.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: Makiko TAKAHASHI, Tomohiro KINOSHITA, Kiyoshi TANAAMI, Shintaro AOYAGI, Takashi MUKAI, Yuta IKEUCHI, Taichi SAKAMOTO, Naoto YAMASHI TA
  • Publication number: 20210257622
    Abstract: Provided are an electrode for lithium ion secondary batteries which is an electrode for obtaining a lithium ion secondary batteries having high energy density with foam metal as the collector, and further being able to improve durability and input/output characteristics (output density), as well as a lithium ion secondary battery made using this electrode for lithium ion secondary batteries. The electrode layer of the electrode for lithium ion secondary batteries using a collector consisting of foam metal is configured by dividing into a plurality of electrode divided parts, whereby the migration distance of electrons and migration distance of ions in each of the electrode divided parts is shortened.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 19, 2021
    Inventors: Kiyoshi TANAAMI, Yuji ISOGAI, Makiko TAKAHASHI, Shintaro AOYAGI
  • Publication number: 20210257627
    Abstract: Provided is an electrode including a metal foam as a current collector for obtaining a lithium-ion secondary battery having a high energy density. More particularly, provided is a lithium-ion secondary battery electrode that achieves improved input/output properties (power density) and improved durability, and a lithium-ion secondary battery including the lithium-ion secondary battery electrode. An electrode is formed by providing, in an electrode layer, a region having an excessive amount of an electrolytic solution by forming a region where a current collector made of a metal foam contains no electrode material mixture.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 19, 2021
    Inventors: Kiyoshi TANAAMI, Yuji ISOGAI, Makiko TAKAHASHI, Shintaro AOYAGI
  • Patent number: 10693123
    Abstract: The present invention relates to a positive electrode comprising a Mn composite oxide having a tetragonal structure represented by formula (1): Lia(MxMn2-x-yYy)(O4-wZw)(wherein 1<a?2.6, 0?x?1.2, 0?y, x+y<2, 0?w?1; M is at least one selected from the group consisting of Co, Ni, Fe, Cr and Cu; Y is at least one selected from the group consisting of Li, B, Na, Mg, Al, Ti, Si, K and Ca; Z is at least one of F or Cl; and a composite oxide having a layered structure represented by formula (2): Li(LixM1-x-yYy)O2 (wherein 0?x<0.3, 0?y<0.3; M is at least one selected from the group consisting of Co, Fe, Ni and Mn; Y is at least one selected from the group consisting of Mg, Al, Zr, Ti and Zn. According to the present invention, a lithium secondary battery having a high capacity and being excellent in cycle life can be provided.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: June 23, 2020
    Assignee: NEC Corporation
    Inventors: Makiko Takahashi, Takehiro Noguchi, Yuukou Katou
  • Patent number: 10587008
    Abstract: The present invention provides a lithium ion secondary battery having excellent high temperature cycle characteristics. The present invention relates to an electrolyte solution containing a non-aqueous electrolyte solvent containing two or more open chain sulfone compounds represented by a specific formula and one or more carbonate ester compounds represented by a specific formula; and to a secondary battery comprising these.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 10, 2020
    Assignee: NEC Corporation
    Inventors: Makiko Takahashi, Takehiro Noguchi
  • Publication number: 20200039715
    Abstract: There is provided a container that makes it possible to suppress intrusion of bacteria from the tip of a pleat part into the inside of the container. The container includes: a main body that includes a body part defining a containing portion and a flange part extending outward from an upper portion of the body part; and a lid that is joined to the flange part of the main body via an outer edge seal portion so as to cover the containing portion, the lid being formed by a lid member folded back at a fold-back portion such that portions of the lid member overlap each other. The lid has: a pleat part that includes the portions of the lid member overlapping each other and that extends from an edge of one side to an edge of the other side of the lid in a first direction; and a first lid part and a second lid part that are formed by the lid member and that are arranged on opposite sides of the pleat part.
    Type: Application
    Filed: March 28, 2018
    Publication date: February 6, 2020
    Inventors: Makiko TAKAHASHI, Kaoru WATANABE, Hiroshi ISHIKAWA, Satoshi TAKIMOTO
  • Patent number: 10381686
    Abstract: The present invention relates to a nonaqueous electrolyte solution comprising a nonaqueous electrolyte solvent which comprises a fluorine-containing phosphate ester represented by a specific formula, a fluorine-containing ether represented by a specific formula, and an open-chain or cyclic acid anhydride. According to the present invention, there is provided an electrolyte solution capable of realizing a lithium secondary battery having an excellent cycle characteristics with little gas generation after charge-discharge cycles.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 13, 2019
    Assignee: NEC Corporation
    Inventors: Yuukou Katou, Takehiro Noguchi, Makiko Takahashi, Hideaki Sasaki
  • Patent number: 10263286
    Abstract: The present invention relates to a secondary battery electrolyte, which contains a first fluorine-containing ether compound, a second fluorine-containing ether compound, and at least one selected from fluorine-containing phosphate ester compounds and sulfone compounds, wherein the fluorine substitution rate of the first fluorine-containing ether compound is lower than that of the second fluorine-containing ether compound, and the content of the first fluorine-containing ether compound is higher than that of the second fluorine-containing ether compound. According to the present invention, with respect to batteries operating at a high voltage, and batteries supposed to be used at a high temperature for a long period, there can be provided a lithium secondary battery suppressed in the decomposition reaction of the electrolyte and improved in the life characteristics.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: April 16, 2019
    Assignee: NEC Corporation
    Inventors: Takehiro Noguchi, Yuukou Katou, Hideaki Sasaki, Makiko Takahashi, Emiko Fujii