Patents by Inventor Ryosuke Iwata

Ryosuke Iwata 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: 20230246301
    Abstract: An electrode body includes an overlapping part where a negative electrode sheet and a separator overlap each other in a thickness direction. The overlapping part includes an inside part located more inside than a peripheral part of the overlapping part when the overlapping part is seen in plan view in the thickness direction. The inside part satisfies the relationship, A>C and B>C, wherein A denotes interlayer separation strength between the separator and a negative electrode mixture layer, B denotes interlayer separation strength between the negative electrode mixture layer and a negative current collector foil, and C denotes intralayer separation strength of the negative electrode mixture layer.
    Type: Application
    Filed: November 17, 2022
    Publication date: August 3, 2023
    Inventors: Ryosuke IWATA, Tomonori MAEDA
  • Patent number: 11444271
    Abstract: A battery includes an electrode assembly having a positive electrode and a negative electrode. The positive electrode includes a positive electrode substrate, a positive electrode active material layer formed on the surface of the positive electrode substrate, and a positive tab section having a substrate-exposed portion in which the positive electrode active material layer is not formed on the surface. The positive electrode active material layer has a notch in the end of the positive electrode active material layer. The outer edge of the notch encloses an end of a boundary where the positive tab section and the positive electrode active material layer come into contact.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 13, 2022
    Assignees: Panasonic Holdings Corporation, SANYO Electric Co., Ltd.
    Inventors: Yuma Kamiyama, Ryosuke Iwata, Katsuya Shiozaki
  • Publication number: 20220094020
    Abstract: A stacked secondary battery having an electrode body in which at least one positive and at least one negative plate are stacked, with a multilayered separator interposed, said separator including two porous layers of different materials; and an outer packaging case housing an insulating holder and an electrolyte together, said insulating holder housing the electrode body and being formed of overlapping sheets comprises an insulating material. The outer packaging case has a bottom surface, a plurality of side walls that are provided standing upright from the bottom surface, and an opening that is opposite from the bottom surface. In at least one separator, a section that is exposed from end surfaces of active material mixture layers and metal foil-comprising core bodies of the positive plate and the negative plate is in contact with the vicinity of a bottom line of a valley section that is formed from the sheet.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 24, 2022
    Applicants: Panasonic Corporation, SANYO Electric Co., Ltd.
    Inventors: Hideo Kasahara, Ryosuke Iwata, Ryoichi Wakimoto
  • Publication number: 20210351484
    Abstract: A battery electrode which is one example of an embodiment is provided with a core and an active material layer disposed on the surface of the core. The core has a based part where the core surface is covered by the active material layer and a tab part projecting from the based part. Notches are formed on the core from the base of the tab part to the base part, or at positions where the base part adjoins the tab part. The edge of each notch is formed from a first curve comprising a first arc and either a second curve comprising a second arch having a smaller curvature than the first arc or a straight line. This allows a battery electrode to be provided such that the occurrence of cracks at the base of the tab part of the core and in the vicinity thereof can be sufficiently suppressed.
    Type: Application
    Filed: June 26, 2019
    Publication date: November 11, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Tsushima, Katsuya Shiozaki, Ryosuke Iwata, Yuma Kamiyama
  • Publication number: 20200185700
    Abstract: A battery includes an electrode assembly having a positive electrode and a negative electrode. The positive electrode includes a positive electrode substrate, a positive electrode active material layer formed on the surface of the positive electrode substrate, and a positive tab section having a substrate-exposed portion in which the positive electrode active material layer is not formed on the surface. The positive electrode active material layer has a notch in the end of the positive electrode active material layer. The outer edge of the notch encloses an end of a boundary where the positive tab section and the positive electrode active material layer come into contact.
    Type: Application
    Filed: November 2, 2018
    Publication date: June 11, 2020
    Applicants: PANASONIC CORPORATION, SANYO Electric Co., Ltd.
    Inventors: Yuma Kamiyama, Ryosuke Iwata, Katsuya Shiozaki
  • Patent number: 10464255
    Abstract: The present invention provide a lipophilic laminate including a substrate and a lipophilic resin layer on the substrate, wherein the lipophilic resin layer has micro convex portions or micro concave portions in a surface thereof and contains filler particles, and when parts of the filler particles are exposed from the lipophilic resin layer, the rate of exposed portions of the filler particles relative to the surface of the lipophilic resin layer is 0.1% or more.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 5, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Ryosuke Iwata, Shinobu Hara, Mikihisa Mizuno
  • Patent number: 10365750
    Abstract: Provided is a metal nanowire-containing transparent conductive film that can efficiently inhibit scattering of external light at a display screen such as a touch panel, and improve black floating prevention (photopic contrast) and electrode pattern non-visibility. Also provided are a method for producing the transparent conductive film, an information input device including the transparent conductive film, and an electronic device including the transparent conductive film. The transparent conductive film includes one or more metal nanowires and the number of metal nanowire bundle structures present in the transparent conductive film is 3 or fewer per each rectangular area region of 30 ?m in height and 40 ?m in width of the transparent conductive film.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 30, 2019
    Assignee: Dexerials Corporation
    Inventors: Ryosuke Iwata, Yasuhisa Ishii, Mikihisa Mizuno, Shinobu Hara
  • Patent number: 10252302
    Abstract: A hydrophilic laminate, including: a substrate made of a resin; and a hydrophilic resin layer on the substrate made of a resin, wherein the hydrophilic resin layer comprises micro convex portions or micro concave portions in a surface thereof, and wherein a pure water contact angle of the surface of the hydrophilic resin layer is less than 40°.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 9, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Ryosuke Iwata, Mikihisa Mizuno, Shinobu Hara
  • Patent number: 10196526
    Abstract: A transparent conductive film including metal nanowires and a colored compound adsorbed by the metal nanowires is provided. The metal nanowires are a material which absorbs light in the visible light region, and also each has a functional group which is bound to a metal constituting the metal nanowire.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: February 5, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Ryosuke Iwata, Mikihisa Mizuno
  • Patent number: 10100208
    Abstract: A transparent conductive film including metal nanowires and a colored compound adsorbed by the metal nanowires is provided. The metal nanowires are a material which absorbs light in the visible light region, and also each has a functional group which is bound to a metal constituting the metal nanowire.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 16, 2018
    Assignee: DEXERIALS CORPORATION
    Inventors: Ryosuke Iwata, Mikihisa Mizuno
  • Patent number: 9988535
    Abstract: The thiol group-containing colored compound includes a chromophore having absorption in a visible light region, a thiol group, and a spacer provided between the chromophore and the thiol group. The spacer is a chain alkylene group having 2 to 30 carbon atoms, a cyclic alkylene group having 3 to 30 carbon atoms, or a derivative of either alkylene group in which the number of carbon atoms in an additional structure of the alkylene group is equal to or less than the number of carbon atoms in the alkylene group.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 5, 2018
    Assignee: Dexerials Corporation
    Inventors: Mikihisa Mizuno, Yasuhisa Ishii, Ryosuke Iwata
  • Patent number: 9963598
    Abstract: A transparent conductive film including metal nanowires and a colored compound adsorbed by the metal nanowires is provided. The metal nanowires are a material which absorbs light in the visible light region, and also each has a functional group which is bound to a metal constituting the metal nanowire.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 8, 2018
    Assignee: DEXERIALS CORPORATION
    Inventors: Ryosuke Iwata, Mikihisa Mizuno
  • Publication number: 20180065177
    Abstract: Provided are metal nanowires having a high total light transmittivity that efficiently inhibit scattering of external light at a display screen such as a touch panel, and improve black floating prevention (photopic contrast) and electrode pattern non-visibility. Also provided are a transparent conductive film including the metal nanowires, a method for producing the transparent conductive film, a dispersion liquid including the metal nanowires, an information input device including the transparent conductive film, and an electronic device including the transparent conductive film. The metal nanowires include metal nanowire bodies and a colored compound adsorbed onto the metal nanowire bodies. The colored compound is a dye and is adsorbed in an amount of from 0.5 mass % to 10 mass % relative to the metal nanowire bodies.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Applicant: Dexerials Corporation
    Inventors: Yasuhisa ISHII, Mikihisa MIZUNO, Shinobu HARA, Ryosuke IWATA
  • Publication number: 20180037740
    Abstract: A phthalocyanine-based complex compound is represented by general formula (1) shown below, where M in general formula (1) is any of Cu, Fe, Ti, V, Ni, Pd, Pt, Pb, Si, Bi, Cd, La, Tb, Ce, Be, Mg, Co, Ru, Mn, Cr, Mo, Sn, and Zn, and may be present or absent.
    Type: Application
    Filed: February 9, 2016
    Publication date: February 8, 2018
    Applicant: Dexerials Corporation
    Inventors: Ryosuke IWATA, Yasuhisa ISHII, Mikihisa MIZUNO
  • Publication number: 20170174888
    Abstract: Provided is a transparent conductive film that suppresses deterioration of display characteristics due to reduced contrast and that has excellent long-term conductivity, even when exposed to harsh conditions. The transparent conductive film includes one or more metal nanowire bodies and a colored compound adsorbed onto the metal nanowire bodies. The colored compound includes a first dye that includes a macrocyclic ?-conjugated moiety and a moiety having a functional group that exhibits adsorptivity with respect to a constituent metal of the metal nanowire bodies.
    Type: Application
    Filed: October 31, 2016
    Publication date: June 22, 2017
    Applicant: Dexerials Corporation
    Inventors: Ryosuke IWATA, Yasuhisa ISHII, Mikihisa MIZUNO
  • Publication number: 20170151706
    Abstract: The present invention provide a lipophilic laminate including a substrate and a lipophilic resin layer on the substrate, wherein the lipophilic resin layer has micro convex portions or micro concave portions in a surface thereof and contains filler particles, and when parts of the filler particles are exposed from the lipophilic resin layer, the rate of exposed portions of the filler particles relative to the surface of the lipophilic resin layer is 0.1% or more.
    Type: Application
    Filed: April 9, 2015
    Publication date: June 1, 2017
    Inventors: Ryosuke IWATA, Shinobu HARA, Mikihisa MIZUNO
  • Publication number: 20170069691
    Abstract: Provided is a dispersion liquid that enables formation of a transparent conductive film in which diffuse reflection of light by the surfaces of metal nanowires is prevented while maintaining good transparency, and in which yellow coloring is suppressed to provide the transparent conductive film with excellent external appearance. The dispersion liquid contains metal nanowires and a colored compound adsorbed onto the metal nanowires. A transmission b* value of a transparent conductive film formed from the dispersion liquid is no greater than 0.7.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 9, 2017
    Applicant: Dexerials Corporation
    Inventors: Ryosuke IWATA, Mikihisa MIZUNO
  • Publication number: 20170010736
    Abstract: Provided is a metal nanowire-containing transparent conductive film that can efficiently inhibit scattering of external light at a display screen such as a touch panel, and improve black floating prevention (photopic contrast) and electrode pattern non-visibility. Also provided are a method for producing the transparent conductive film, an information input device including the transparent conductive film, and an electronic device including the transparent conductive film. The transparent conductive film includes one or more metal nanowires and the number of metal nanowire bundle structures present in the transparent conductive film is 3 or fewer per each rectangular area region of 30 ?m in height and 40 ?m in width of the transparent conductive film.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 12, 2017
    Applicant: Dexerials Corporation
    Inventors: Ryosuke IWATA, Yasuhisa ISHII, Mikihisa MIZUNO, Shinobu HARA
  • Publication number: 20160346839
    Abstract: Provided are metal nanowires having a high total light transmittivity that efficiently inhibit scattering of external light at a display screen such as a touch panel, and improve black floating prevention (photopic contrast) and electrode pattern non-visibility. Also provided are a transparent conductive film including the metal nanowires, a method for producing the transparent conductive film, a dispersion liquid including the metal nanowires, an information input device including the transparent conductive film, and an electronic device including the transparent conductive film. The metal nanowires include metal nanowire bodies and a colored compound adsorbed onto the metal nanowire bodies. The colored compound is a dye and is adsorbed in an amount of from 0.5 mass % to 10 mass % relative to the metal nanowire bodies.
    Type: Application
    Filed: January 23, 2015
    Publication date: December 1, 2016
    Applicant: Dexerials Corporation
    Inventors: Yasuhisa ISHII, Mikihisa MIZUNO, Shinobu HARA, Ryosuke IWATA
  • Publication number: 20160208104
    Abstract: The thiol group-containing colored compound includes a chromophore having absorption in a visible light region, a thiol group, and a spacer provided between the chromophore and the thiol group. The spacer is a chain alkylene group having 2 to 30 carbon atoms, a cyclic alkylene group having 3 to 30 carbon atoms, or a derivative of either alkylene group in which the number of carbon atoms in an additional structure of the alkylene group is equal to or less than the number of carbon atoms in the alkylene group.
    Type: Application
    Filed: August 14, 2014
    Publication date: July 21, 2016
    Applicant: Dexerials Corporation
    Inventors: Mikihisa MIZUNO, Yasuhisa ISHII, Ryosuke IWATA