Patents by Inventor Katsuyuki Naito

Katsuyuki Naito 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: 11952351
    Abstract: The present embodiment provides a compound represented by the formula (1): Q-CHR2??(1) (Q is a nitrogen-containing aliphatic group containing two or more tertiary nitrogens but no oxygen, and R is an aliphatic group containing a biodegradable group). From the compound in combination with other lipids such as a lipid capable of reducing aggregation, lipid particles can be formed. Further, the compound can be used for a pharmaceutical composition to deliver an activator into cells.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: April 9, 2024
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsuko Ishihara, Eiichi Akahoshi, Katsuyuki Naito, Emi Nozaki, Saeko Saruwatari
  • Patent number: 11942575
    Abstract: The embodiment provides a transparent electrode having low resistance and high stability against impurities such as halogen and sulfur, a method of producing the transparent electrode, and an electronic device using the transparent electrode. A transparent electrode according to an embodiment includes a transparent substrate and a plurality of conductive regions disposed on a surface of the transparent substrate and separated from each other by a separation region, wherein the conductive region has a structure in which a first transparent conductive metal oxide layer, a metal layer, and a second transparent conductive metal oxide layer are laminated in this order from the substrate side, and in the separation region, there is disposed a trapping material. This transparent electrode can be produced by scribing the conductive region to form a separation region, and then using a halide or a sulfur compound.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: March 26, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Yutaka Saita
  • Publication number: 20230390799
    Abstract: According to one embodiment of the invention, a coating apparatus includes a coating bar, a plurality of nozzles, a plurality of holding portions, and a detector. The coating bar is configured to face a coating target member. The plurality of nozzles are configured to supply a liquid toward the coating bar. One of the plurality of holding portions holds one of the plurality of nozzles. The one of the plurality of holding portions is configured to control a position of the one of the plurality of nozzles relative to the coating bar. The detector is configured to detect a quantity corresponding to respective positions of the plurality of nozzles with respect to the coating bar.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Naomi SHIDA, Katsuyuki NAITO, Yutaka SAITA
  • Patent number: 11710797
    Abstract: The present embodiments provide a transparent electrode having a laminate structure of: a metal oxide layer having an amorphous structure and electroconductivity, and a metal nanowire layer; and further comprising an auxiliary metal wiring. The auxiliary metal wiring covers a part of the metal nanowire layer or of the metal oxide layer, and is connected to the metal nanowire layer.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 25, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsuyuki Naito, Naomi Shida, Mitsunaga Saito, Takeshi Niimoto
  • Patent number: 11707759
    Abstract: According to one embodiment, a coating head includes a coating bar, nozzles, a first member, second members, third members, elastic members, and a position controller. The coating bar faces a coating member. The nozzles supply a liquid toward the coating bar. The first member includes first recesses. A portion of the nozzles is between the first recesses and the third members. The portion of the nozzles and the third members are fixed to the first member by the second members. The elastic members are located in at least first, second, or third positions. The first position is between the third members and the second members. The second position is between the portion of the first recesses and the nozzles. The third position is between the portion of the nozzles and the third members. The position controller controls a relative position between the coating bar and the nozzles.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: July 25, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Kohei Nara, Takahiro Kokubo, Yutaka Saita
  • Patent number: 11682740
    Abstract: The present embodiment provide a method for evaluating anion permeability of a graphene-containing membrane and also to provide a photoelectric conversion device employing a graphene-containing membrane having controlled anion permeability.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: June 20, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Yutaka Saita
  • Publication number: 20230187099
    Abstract: According to one embodiment, According to one embodiment of the invention, a conductive member includes a first layer including a metal nanowire, a second layer including a polythiophene member, and a third layer including a graphene member including a graphene skeleton. The second layer is provided between the metal nanowire and the third layer.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Naomi SHIDA, Katsuyuki NAITO, Koji MIZUGUCHI, Yutaka SAITA
  • Patent number: 11623238
    Abstract: An embodiment of the present invention provides a coating method, a coating bar head and a coating apparatus which enables coating in which changes in coating film thickness is less likely to occur, even when performing meniscus coating at a high speed. This coating method is a coating method including: supplying a coating liquid between a coating bar head and a substrate to form a meniscus; and moving the substrate, wherein a cross section of the coating surface of the bar head in the direction of coating, is a convex curve, and has bending points at both ends of the curve.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 11, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Mitsunaga Saito, Yutaka Saita
  • Publication number: 20230099139
    Abstract: The present embodiment provides a compound represented by the formula (1): Q-CHR2??(1) (Q is a nitrogen-containing aliphatic group containing two or more tertiary nitrogens but no oxygen, and R is an aliphatic group containing a biodegradable group). From the compound in combination with other lipids such as a lipid capable of reducing aggregation, lipid particles can be formed. Further, the compound can be used for a pharmaceutical composition to deliver an activator into cells.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 30, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsuko ISHIHARA, Eiichi AKAHOSHI, Katsuyuki NAITO, Emi NOZAKI, Saeko SARUWATARI
  • Patent number: 11609201
    Abstract: The embodiments provide a method making it possible to safely and inexpensively measure concentrations of combustible gases, such as methanol, at room temperature even in high concentration atmospheres, and also provide a sensor making it possible to carry out the above measurement method. The measurement method comprises: arranging a film containing nanoparticles of tungsten oxide and a pair of electrodes which are separated from each other and which individually keep in contact with said film in said atmosphere, exposing said film to light, measuring electric resistance change of said film before and after exposing said film to light, and determining said concentration based on said change.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 21, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsuyuki Naito, Naomi Shida
  • Publication number: 20230025098
    Abstract: To provide a transparent electrode that hardly causes migration of silver and has high resistance, a method for producing the same, and an electronic device using the transparent electrode. A transparent electrode according to the embodiment includes a laminated structure in which a transparent base material, a conductive silver-containing layer, and a conductive oxide layer are laminated in this order, wherein a ratio T800/T600 of total transmittances of the transparent electrode is 0.85 or more, where T800 and T600 are transmittances at wavelengths of 800 nm and 600 nm, respectively, and the silver-containing layer is continuous. This electrode can be produced by bringing sulfur or a sulfur compound into contact with a laminated film in which a conductive silver-containing layer and a conductive oxide layer are laminated to form a sulfur-containing silver compound layer.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 26, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Naomi SHIDA, Katsuyuki NAITO, Yutaka SAITA
  • Patent number: 11563129
    Abstract: The embodiments provide a process for easily producing an electrode having low resistance, easily subjected to post-process and hardly impairing the device; and also provide, as its application, a production process for a photoelectric conversion device. The process comprises the steps of: coating a hydrophobic substrate directly with a dispersion of metal nanomaterial, to form a metal nanomaterial layer, coating the surface of the metal nanomaterial layer with a dispersion of carbon material, to form a carbon material layer and thereby to form an electrode layer comprising a laminate of the metal nanomaterial layer and the carbon material layer, pressing the carbon material layer onto a hydrophilic substrate so that the surface of the carbon material layer may be directly fixed on the hydrophilic substrate, and peeling away the hydrophobic substrate so as to transfer the electrode layer onto the hydrophilic substrate.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: January 24, 2023
    Assignees: KABUSHIKIKAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Yutaka Saita
  • Patent number: 11548857
    Abstract: The present embodiment provides a compound represented by the formula (1): Q-CHR2??(1) (Q is a nitrogen-containing aliphatic group containing two or more tertiary nitrogens but no oxygen, and R is an aliphatic group containing a biodegradable group). From the compound in combination with other lipids such as a lipid capable of reducing aggregation, lipid particles can be formed. Further, the compound can be used for a pharmaceutical composition to deliver an activator into cells.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: January 10, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsuko Ishihara, Eiichi Akahoshi, Katsuyuki Naito, Emi Nozaki, Saeko Saruwatari
  • Publication number: 20220416100
    Abstract: Embodiments provide a transparent electrode having high stability, low sheet resistance, and high light transmissivity, a method for producing the transparent electrode, and an electronic device using the transparent electrode. A transparent electrode including a structure including a transparent base material, a metal grid, metal nanowire, and a neutral polythiophene mixture. The metal grid has an embedded portion embedded in the transparent base material and a protrusion portion protruding from the transparent base material, and the metal nanowire and the neutral polythiophene mixture are arranged in contact with the transparent base material or the protrusion portion.
    Type: Application
    Filed: September 2, 2022
    Publication date: December 29, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Katsuyuki NAITO, Naomi SHIDA, Takeshi GOTANDA, Yutaka SAITA
  • Patent number: 11532787
    Abstract: The embodiments provide a process and an apparatus for easily producing a transparent electrode of low resistance and of high transparency. The process comprises: coating a hydrophobic polymer film with a dispersion of metal nanowires, press-bonding an electroconductive substrate directly onto the metal nanowires on the polymer film, and peeling and transferring the metal nanowires from the polymer film onto the conductive substrate. The embodiments also relates to an apparatus for the process.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 20, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Mitsunaga Saito, Takeshi Niimoto
  • Publication number: 20220379339
    Abstract: According to one embodiment, a coating apparatus includes a coating bar configured to face a member to be coated, and a plurality of nozzles configured to supply a liquid toward the coating bar. A number of the nozzles is 3 or more. An arithmetic mean roughness Ra of at least a part of a surface of the coating bar is not less than 0.5 ?m and not more than 10 ?m.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 1, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Naomi SHIDA, Katsuyuki NAITO, Yutaka SAITA
  • Patent number: 11495789
    Abstract: According to one embodiment, there is provided a composite. The composite includes active material particles of a titanium composite oxide or oxide of titanium, and a graphene structure including a carbon material. The carbon material has a graphene framework defining a graphene surface. The graphene structure is located in between the active material particles. The graphene structure has at least one side surface in contact with the active material particle. The side surface includes the carbon material whose graphene surface is slanted relative to the side surface.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 8, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsuyuki Naito, Yasuhiro Harada, Norihiro Yoshinaga, Yoshihiro Akasaka
  • Publication number: 20220320354
    Abstract: The embodiment provides a graphene-containing membrane producible by wet-coating and excellent in electric properties, a process for producing the membrane, a graphene-containing membrane laminate, and a photoelectric conversion device using the graphene-containing membrane. The graphene-containing membrane contains graphene having a graphene skeleton combined with polyalkylenimine chains. The membrane has a ratio of the photoelectron intensity at the energy peak position of C1s orbital to that at the bonding energy on an X-ray photoelectron spectrum measured on an ITO film of 288 eV in a range of 5.5 to 20. This membrane can be produced by heating a graphene oxide-containing film in the presence of polyalkyleneimine and further heating the film in the presence of a reducing agent. The graphene-containing membrane can be so installed in a photoelectric conversion device that it is placed between the photoelectric conversion layer and the electrode.
    Type: Application
    Filed: June 13, 2022
    Publication date: October 6, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki NAITO, Naomi SHIDA, Yutaka SAITA
  • Patent number: 11387375
    Abstract: The embodiment provides a graphene-containing membrane producible by wet-coating and excellent in electric properties, a process for producing the membrane, a graphene-containing membrane laminate, and a photoelectric conversion device using the graphene-containing membrane. The graphene-containing membrane contains graphene having a graphene skeleton combined with polyalkyleneimine chains. The membrane has a ratio of the photoelectron intensity at the energy peak position of C1s orbital to that at the bonding energy on an X-ray photoelectron spectrum measured on an ITO film of 288 eV in a range of 5.5 to 20. This membrane can be produced by heating a graphene oxide-containing film in the presence of polyalkyleneimine and further heating the film in the presence of a reducing agent. The graphene-containing membrane can be so installed in a photoelectric conversion device that it is placed between the photoelectric conversion layer and the electrode.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: July 12, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Katsuyuki Naito, Naomi Shida, Yutaka Saita
  • Publication number: 20220209151
    Abstract: The present embodiment provides a transparent electrode, a transparent electrode production process and a photoelectric conversion device. The transparent electrode comprises a patterned electrode layer formed on a transparent substrate. The electrode layer has an electroconductive film containing metal nanowires and also has a film of N-graphene. In the graphene carbon skeleton of the N-graphene, carbon atoms are partly substituted with nitrogen atoms. The transparent electrode can be produced by: forming an electroconductive layer by coating with a dispersion containing metal nanowires; then forming an N-graphene film thereon; and subsequently patterning them.
    Type: Application
    Filed: September 8, 2021
    Publication date: June 30, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Naomi SHIDA, Katsuyuki NAITO, Yutaka SAITA