Patents by Inventor Reiko Izumi

Reiko Izumi 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: 20240170820
    Abstract: A positive electrode, which is an example of this secondary battery electrode, includes: a positive electrode core material; an electrically conductive adhesive layer disposed on the positive electrode core material; and a positive electrode mixture layer disposed on the adhesive layer. The positive electrode core material includes, at one end in a lateral direction of the positive electrode core material, an exposed portion where the adhesive layer and the positive electrode mixture layer are not disposed. An insulating protection layer that includes resin is disposed on the exposed portion of the one end. A predetermined gap is provided between the protective layer and an end surface of one end in the lateral direction of the adhesive layer.
    Type: Application
    Filed: January 7, 2022
    Publication date: May 23, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Reiko Izumi, Satoru Maeda, Shinya Geshi, Kiyomi Kozuki
  • Publication number: 20240162503
    Abstract: A positive electrode that is an example of an electrode for a secondary battery comprises: a positive electrode core material, a conductive adhesive layer disposed on the positive electrode core material, and a positive electrode mixture layer disposed on the adhesive layer, wherein: the positive electrode core material has, at one end in the short direction of the positive electrode core material, an exposed part on which the adhesive layer and the positive electrode mixture layer are not provided; an insulating protective layer containing a resin is disposed on the exposed part at the one end; and the protective layer is in contact with the end surface at one end of the adhesive layer and the positive electrode mixture layer in the short direction.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 16, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Reiko Izumi, Satoru Maeda, Shinya Geshi, Kiyomi Kozuki
  • Publication number: 20240145721
    Abstract: Provided is a PTFE powder that is in a dry state, wherein the percentage of fibrous particles which have an aspect ratio of 1.5 or higher with respect to all particles is 20-60%, and the average major axis size of the fibrous particles is 1-20 ?m. A PTFE powder according to another embodiment of the present invention is in a dry state, wherein the percentage of fibrous particles which have an aspect ratio of 5 or higher with respect to all particles is 60% or more, and the average minor axis size of the fibrous particles is 1-20 ?m.
    Type: Application
    Filed: May 24, 2021
    Publication date: May 2, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Reiko Izumi, Daisuke Katou, Takuya Jin, Shinichiro Kondo
  • Publication number: 20240006578
    Abstract: The present invention provides an electrode which is capable of reducing the interface resistance, while ensuring the strength of a core material by suppressing the amount of biting of an active material into the core material. An electrode according to one embodiment of the present disclosure comprises a core material, an electrode mixture that is superposed on the surface of the core material, and a conductive bonding layer that is formed between the core material and the electrode mixture: the electrode mixture comprises an active material and a fibrous binder; the active material bites into the core material; the maximum bite depth is 20% or less of the thickness of the core material; and the ratio of the density of the active material in the electrode mixture to the true density of the active material is 70% or more.
    Type: Application
    Filed: November 4, 2021
    Publication date: January 4, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takayuki Gonjo, Reiko Izumi, Hiroki Yamashita, Norihiro Kotani
  • Publication number: 20230378468
    Abstract: With respect to this electrode, the coverage of the surface of a coated active material by a conductive material is from 10% to 60%; the mixture resistance of a electrode mixture material is 20 ?cm or less in cases where the electrode mixture material is divided into three equal parts in the thickness direction, namely into a first region, a second region and a third region from a core material side, the content (a) of a PTFE powder in the first region, the content (b) of the PTFE powder in the second region and the content (c) of the PTFE powder in the third region satisfy ?10%?(c?a)/(a+b+c)?10%.
    Type: Application
    Filed: July 7, 2021
    Publication date: November 23, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Daisuke Katou, Reiko Izumi, Takuya Jin, Shinichiro Kondo
  • Publication number: 20230369569
    Abstract: This electrode includes a core material, and an electrode mixture laminated on the surface of the core material. The electrode mixture contains an active material, a conductive material, and a fibrous binding material, wherein the ratio of the density of the electrode mixture to the true density of the active material is at least 72%, and the maximum infiltration depth of the active material in the core material is at most 18% of the thickness of the core material.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 16, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiro Kotani, Reiko Izumi, Takayuki Gonjo, Hiroki Yamashita
  • Publication number: 20230299261
    Abstract: This secondary battery electrode is provided with a core material configured from a metal foil that softens at less than or equal to 200° C. and an electrode mixture sheet which is bonded on the surface of the core material. The electrode mixture sheet includes an active material and a fibrous binder, and the active material bites into the core material, with the maximum bite depth at least 30% of the thickness of the core material. The fibrous binder may for example have polytetrafluoroethylene as the main component.
    Type: Application
    Filed: January 19, 2021
    Publication date: September 21, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinichiro Kondo, Reiko Izumi, Daisuke Katou, Takuya Jin, Yosuke Takayama, Masateru Mikami
  • Publication number: 20230108728
    Abstract: This electrode for secondary batteries is provided with a core material and an electrode mixture sheet that is bonded to the surface of the core material. The electrode mixture sheet contains an active material, a fibrous first binder and a particulate second binder; and the second binder is mainly composed of a polyvinylidene fluoride, while having a volume-based median diameter of 50 µm or less. The first binder is mainly composed, for example, of a polytetrafluoroethylene.
    Type: Application
    Filed: January 19, 2021
    Publication date: April 6, 2023
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takuya Jin, Daisuke Katou, Shinichiro Kondo, Reiko Izumi, Masaya Ugaji
  • Publication number: 20230104306
    Abstract: According to this method for producing an electrode, a fibrous binder is produced by fibrillating a particulate binder, which has a volume-based median diameter of from 5 to 100 µm, by means of the application of a shear force, and an electrode mixture is produced by mixing the fibrous binder with an active material, said electrode mixture having a solid content concentration of substantially 100%. It is preferable that the fibrillation is carried out so that the breaking peripheral velocity ratio of the electrode mixture is 8 or more. In addition, an electrode mixture sheet is produced by shaping the electrode mixture into a sheet form by rolling, and the electrode mixture sheet is subsequently bonded to a core material.
    Type: Application
    Filed: January 19, 2021
    Publication date: April 6, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Reiko Izumi, Shinichiro Kondo, Daisuke Katou, Takuya Jin
  • Publication number: 20200281834
    Abstract: The purpose of the present invention is to provide a specific composition for promoting expression of aquaporin 3, and use thereof. The present invention relates to a composition for promoting expression of aquaporin 3, the composition including a galloyl group-containing flavan-3-ol monomer and/or a galloyl group-containing flavan-3-ol polymer as an active ingredient.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 10, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Yumi Nakamura, Yuko Fukui, Takatsugu Tsuchiya, Reiko Izumi
  • Patent number: 10546670
    Abstract: This insulated wire includes an insulating coating formed on a surface of a conductive wire body, and a soldered portion for electric conduction. The soldered portion is formed by attaching dicarboxylic acid onto a surface of the insulating coating, and by performing solder plating in a state where the dicarboxylic acid is attached onto the surface of the insulating coating. In addition, this method for manufacturing an insulated wire includes a surface treatment step of attaching the dicarboxylic acid onto a surface of an insulating coating which becomes the soldered portion, and a soldering step of performing the solder plating by immersing the surface treated portion of the insulating coating in a heated solder melt.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: January 28, 2020
    Assignee: Mitsubishi Materials Corporation
    Inventors: Reiko Izumi, Shintaro Iida, Hideaki Sakurai, Takeshi Ikeda, Ken Hayashii
  • Patent number: 10395798
    Abstract: The present invention provides an insulated wire having a heat-resistant insulating layer, wherein heat-resistant particles are contained in the insulating layer, and the heat-resistant particles are densely dispersed in a surface region of the insulating layer. For example, the concentration of heat-resistant particles included in a layer thick portion of 0.5 ?m from the surface of the insulating layer is two times the concentration of heat-resistant particles included in a central portion of the insulating layer. An electrodeposition liquid used to form the insulating layer is formed by dispersing the heat-resistant particles in a suspension in which resin particles are dispersed, the viscosity is 100 cP or less, and the turbidity is 1 mg/L or more.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 27, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Shintaro Iida, Reiko Izumi, Hideaki Sakurai, Ken Hayashii, Keiko Ashida
  • Publication number: 20180366241
    Abstract: The present invention provides an insulated wire having a heat-resistant insulating layer, wherein heat-resistant particles are contained in the insulating layer, and the heat-resistant particles are densely dispersed in a surface region of the insulating layer. For example, the concentration of heat-resistant particles included in a layer thick portion of 0.5 ?m from the surface of the insulating layer is two times the concentration of heat-resistant particles included in a central portion of the insulating layer. An electrodeposition liquid used to form the insulating layer is formed by dispersing the heat-resistant particles in a suspension in which resin particles are dispersed, the viscosity is 100 cP or less, and the turbidity is 1 mg/L or more.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 20, 2018
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Shintaro IIDA, Reiko IZUMI, Hideaki SAKURAI, Ken HAYASHII, Keiko ASHIDA
  • Publication number: 20170278595
    Abstract: This insulated wire includes an insulating coating formed on a surface of a conductive wire body, and a soldered portion for electric conduction. The soldered portion is formed by attaching dicarboxylic acid onto a surface of the insulating coating, and by performing solder plating in a state where the dicarboxylic acid is attached onto the surface of the insulating coating. In addition, this method for manufacturing an insulated wire includes a surface treatment step of attaching the dicarboxylic acid onto a surface of an insulating coating which becomes the soldered portion, and a soldering step of performing the solder plating by immersing the surface treated portion of the insulating coating in a heated solder melt.
    Type: Application
    Filed: September 28, 2015
    Publication date: September 28, 2017
    Applicants: Mitsubishi Materials Corporation, Mitsubishi Cable Industries, Ltd.
    Inventors: Reiko IZUMI, Shintaro IIDA, Hideaki SAKURAI, Takeshi IKEDA, Ken HAYASHII
  • Patent number: 9647185
    Abstract: A light emitting element having a light emitting layer, an electro-conductive reflection film that reflects light emitted from the light emitting layer and a substrate in this order, wherein the electro-conductive reflection film contains metal nanoparticles.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: May 9, 2017
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Fuyumi Mawatari, Youji Kondou, Reiko Izumi, Yoshimasa Hayashi, Kazuhiko Yamasaki
  • Publication number: 20130234191
    Abstract: A light emitting element having a light emitting layer, an electro-conductive reflection film that reflects light emitted from the light emitting layer and a substrate in this order, wherein the electro-conductive reflection film contains metal nanoparticles.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 12, 2013
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Fuyumi Mawatari, Youji Kondou, Reiko Izumi, Yoshimasa Hayashi, Kazuhiko Yamasaki
  • Publication number: 20130174904
    Abstract: This composition for an antireflective film includes a translucent binder, wherein the translucent binder contains either one or both of a polymer type binder and a non-polymer type binder, a content of the translucent binder is in a range of 10 parts by mass to 90 parts by mass with respect to 100 parts by mass of a total amount of components other than a dispersion medium, and a refractive index of an antireflective film which is formed by curing the composition for an antireflective film is in a range of 1.70 to 1.90. This method for manufacturing an antireflective film includes: applying the above-described composition for an antireflective film onto a transparent conductive film by a wet coating method to form an antireflective coating film; and curing the antireflective coating film to form an antireflective film.
    Type: Application
    Filed: September 29, 2011
    Publication date: July 11, 2013
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuhiko Yamasaki, Satoko Higano, Reiko Izumi, Toshiharu Hayashi
  • Patent number: 7794853
    Abstract: Porous titanium having a low contact resistance includes porous titanium body, Au, and Ti oxide layer (3). Porous titanium includes continuous holes (1) opening on a surface and being connected to inner holes and a skeleton (2). Au adheres to at least an outer skeletal surface (4) of the porous titanium via diffusion bonding to form a network structure. The Ti oxide layer (3) is formed in a clearance between adjacent Au cords (5) of the Au network sticking. The width of an Au cord (5) of the Au network is 0.3 to 10 ?m at least at one position; and the thickness of the Ti oxide layer (3), which is formed in the clearance between adjacent Au cords (5) of the Au network is 30 to 150 nm.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: September 14, 2010
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kenji Orito, Toshiharu Hayashi, Masahiro Wada, Reiko Izumi, Koji Hoshino
  • Publication number: 20100015507
    Abstract: Porous titanium having a low contact resistance includes porous titanium body, Au, and a Ti oxide layer (3). Porous titanium includes continuous holes (1) opening on a surface and being connected to inner holes and a skeleton (2). Au adheres to at least an outer skeletal surface (4) of the porous titanium via diffusion bonding to form a network structure. The Ti oxide layer (3) is formed in a clearance between adjacent Au codes (5) of the Au network sticking. The width of an Au code (5) of the Au network is 0.3 to 10 ?m at least at one position; and the thickness of the Ti oxide layer (3), which is formed in the clearance between adjacent Au codes (5) of the Au network is 30 to 150 nm.
    Type: Application
    Filed: December 13, 2007
    Publication date: January 21, 2010
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kenji Orito, Toshiharu Hayashi, Masahiro Wada, Reiko Izumi, Koji Hoshino
  • Publication number: 20080293818
    Abstract: A regulator for regulating physiological functions, such as activity of increasing an intracellular calcium ion concentration, activity of promoting growth hormone secretion, activity of promoting eating, regulatory activity relating to fat accumulation, activity of ameliorating heart function and activity of stimulating gastric acid secretion, of ghrelin, which regulator comprises a fatty acid of carbon number 2-35 or its derivative, and use thereof.
    Type: Application
    Filed: April 19, 2005
    Publication date: November 27, 2008
    Inventors: Masayasu Kojima, Yoshihiro Nishi, Kenji Kanagawa, Keiichi Abe, Reiko Izumi, Junichi Nakamura