Patents by Inventor Maki Fukuda

Maki Fukuda 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: 20210166989
    Abstract: According to one embodiment, a structure according to the embodiment includes a ? type silicon nitride type crystal phase and a Y2Si3O3N4 type crystal phase. In an X-ray diffraction pattern according to a ?-2? method of the structure, a ratio of a second peak intensity being maximum and appearing at 2?=31.93±0.1° with respect to a first peak intensity being maximum and appearing at 2?=27.03±0.1° is 0.005 or more and 0.20 or less.
    Type: Application
    Filed: February 16, 2021
    Publication date: June 3, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumi FUKUDA, Koichi HARADA, Kenji ESSAKI, Yasushi HATTORI, Yasuhiro GOTO, Keiko ALBESSARD, Maki YONETSU
  • Patent number: 10522790
    Abstract: A film member having a concave-convex structure is composed of a base member; a gas barrier layer formed on the base member; and a concave-convex structure layer formed on a surface of the gas barrier layer, wherein the surface of the gas barrier layer is formed of an inorganic material which is same as a material of the concave-convex structure layer, and the concave-convex structure layer is obtained from a precursor solution applied on the gas barrier layer. The film member having the concave-convex structure has an excellent adhesion property between the concave-convex structure layer and the gas barrier layer, and a high barrier property.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: December 31, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yusuke Sato, Maki Fukuda, Suzushi Nishimura
  • Patent number: 10408984
    Abstract: An optical phase difference component includes: a transparent base with a concave-convex pattern; gaps defined between convex portions of the concave-convex pattern; and a closing layer provided on the concave-convex pattern to connect the convex portions of the concave-convex pattern and to close the gaps. The phase difference property of the optical phase difference component is not reduced, even when the optical phase difference component is joined to another component with adhesive or when load is applied to the optical phase difference component.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: September 10, 2019
    Assignee: JX NIPPON OIL AND ENERGY CORPORATION
    Inventors: Maki Fukuda, Hironao Tanaka, Suzushi Nishimura
  • Patent number: 9823392
    Abstract: An optical substrate according to one embodiment includes a support substrate, and a projection-depression structure layer on a surface of which shapes of projections and depressions are formed, the projection-depression structure layer being laminated on the support substrate. The extending directions of projection portions contained in the projection-depression structure layer are irregularly distributed seen in planar view. An outline seen in planar view of a projection portion contained in a region per unit area of the projection-depression structure layer includes more straight line sections than curved line sections.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 21, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Satoshi Masuyama, Takashi Seki, Maki Fukuda, Suzushi Nishimura
  • Publication number: 20170199313
    Abstract: An optical phase difference component includes: a transparent base with a concave-convex pattern; gaps defined between convex portions of the concave-convex pattern; and a closing layer provided on the concave-convex pattern to connect the convex portions of the concave-convex pattern and to close the gaps. The phase difference property of the optical phase difference component is not reduced, even when the optical phase difference component is joined to another component with adhesive or when load is applied to the optical phase difference component.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Maki FUKUDA, Hironao TANAKA, Suzushi NISHIMURA
  • Patent number: 9660217
    Abstract: A light emitting element includes a base member, a sealing member disposed to face the base member, a concave-convex structure layer, a first electrode, an organic layer, a second electrode, and an adhesive layer. The concave-convex structure layer, the first electrode, the organic layer, and the second electrode are formed on the base member in that order. The adhesive layer is positioned between the base member and the sealing member. An outer periphery of the concave-convex structure layer is positioned between an inner periphery and an outer periphery of the adhesive layer. The light emitting element includes the concave-convex structure layer functioning as a diffracting grating, and thus light extraction efficiency thereof is excellent. Further, a light emitting part is sealed with sufficient sealing performance and deterioration of the light emitting part due to moisture and oxygen is prevented. Thus, the light emitting element has a long service life.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: May 23, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Maki Fukuda, Suzushi Nishimura, Shigetaka Toriyama, Takashi Seki
  • Publication number: 20170054112
    Abstract: A film member having a concave-convex structure is composed of a base member; a gas barrier layer formed on the base member; and a concave-convex structure layer formed on a surface of the gas barrier layer, wherein the surface of the gas barrier layer is formed of an inorganic material which is same as a material of the concave-convex structure layer, and the concave-convex structure layer is obtained from a precursor solution applied on the gas barrier layer. The film member having the concave-convex structure has an excellent adhesion property between the concave-convex structure layer and the gas barrier layer, and a high barrier property.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yusuke SATO, Maki FUKUDA, Suzushi NISHIMURA
  • Publication number: 20160327695
    Abstract: An optical substrate according to one embodiment includes a support substrate, and a projection-depression structure layer on a surface of which shapes of projections and depressions are formed, the projection-depression structure layer being laminated on the support substrate. The extending directions of projection portions contained in the projection-depression structure layer are irregularly distributed seen in planar view. An outline seen in planar view of a projection portion contained in a region per unit area of the projection-depression structure layer includes more straight line sections than curved line sections.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 10, 2016
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Satoshi MASUYAMA, Takashi SEKI, Maki FUKUDA, Suzushi NISHIMURA
  • Publication number: 20160172624
    Abstract: A light emitting element includes a base member, a sealing member disposed to face the base member, a concave-convex structure layer, a first electrode, an organic layer, a second electrode, and an adhesive layer. The concave-convex structure layer, the first electrode, the organic layer, and the second electrode are formed on the base member in that order. The adhesive layer is positioned between the base member and the sealing member. An outer periphery of the concave-convex structure layer is positioned between an inner periphery and an outer periphery of the adhesive layer. The light emitting element includes the concave-convex structure layer functioning as a diffracting grating, and thus light extraction efficiency thereof is excellent. Further, a light emitting part is sealed with sufficient sealing performance and deterioration of the light emitting part due to moisture and oxygen is prevented. Thus, the light emitting element has a long service life.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 16, 2016
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Maki FUKUDA, Suzushi NISHIMURA, Shigetaka TORIYAMA, Takashi SEKI
  • Publication number: 20160161647
    Abstract: A method for producing a mold includes: applying a block copolymer solution made of first and second polymers on a base member; performing a first annealing process at a temperature higher than Tg of the block copolymer after drying the coating film; forming a concavity and convexity structure on the base member by removing the second polymer by an etching process; performing a second annealing process of the concavity and convexity structure at a temperature higher than Tg of the first polymer; forming a seed layer on the structure; laminating or stacking a metal layer on the seed layer by an electroforming; and peeling off the metal layer from the base member. The second annealing process enables satisfactory transfer of a concavity and convexity structure on the base member onto the metal layer.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Satoshi MASUYAMA, Madoka TAKAHASHI, Suzushi NISHIMURA, Maki FUKUDA, Takashi SEKI
  • Patent number: 9291754
    Abstract: A method for producing a mold includes: applying a block copolymer solution made of first and second polymers on a base member; performing a first annealing process at a temperature higher than Tg of the block copolymer after drying the coating film; forming a concavity and convexity structure on the base member by removing the second polymer by an etching process; performing a second annealing process of the concavity and convexity structure at a temperature higher than Tg of the first polymer; forming a seed layer on the structure; laminating or stacking a metal layer on the seed layer by an electroforming; and peeling off the metal layer from the base member. The second annealing process enables satisfactory transfer of a concavity and convexity structure on the base member onto the metal layer.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 22, 2016
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Satoshi Masuyama, Madoka Takahashi, Suzushi Nishimura, Maki Fukuda, Takashi Seki
  • Patent number: 9052096
    Abstract: A light extraction transparent substrate for an organic EL element includes a transparent supporting substrate; a diffraction grating having a first concavity and convexity layer having first concavities and convexities formed on a surface thereof, which is located on a surface of the transparent supporting substrate, and a microlens having a second concavity and convexity layer having second concavities and convexities formed on a surface thereof, which is located on a surface of the transparent supporting substrate. When a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing the shape of each of the first and second concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: June 9, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Suzushi Nishimura, Soon Moon Jeong, Maki Fukuda, Toshihiko Shibanuma
  • Publication number: 20150028325
    Abstract: A mold for transferring a fine pattern, suitable for producing a substrate having a concave-convex structure such as a diffraction grating, can be provided by a simple process and with a high throughput. A method for producing a mold for transferring a fine pattern includes: a step of coating a surface of a base member with a solution containing a block copolymer and polyalkylene oxide; a solvent phase-separation step of phase-separating the block copolymer under a presence of vapor of an organic solvent so as to obtain a block copolymer film of the block copolymer, the block copolymer film having a concave-convex structure on a surface thereof and a horizontal cylinder structure in an interior thereof; a step of stacking a metal layer by electroforming; and a step of releasing the base member having the concave-convex structure formed thereon from the metal layer.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Takashi SEKI, Satoshi MASUYAMA, Maki FUKUDA, Suzushi NISHIMURA
  • Publication number: 20140042426
    Abstract: A light extraction transparent substrate for an organic EL element includes a transparent supporting substrate; a diffraction grating having a first concavity and convexity layer having first concavities and convexities formed on a surface thereof, which is located on a surface of the transparent supporting substrate, and a microlens having a second concavity and convexity layer having second concavities and convexities formed on a surface thereof, which is located on a surface of the transparent supporting substrate. When a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing the shape of each of the first and second concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 13, 2014
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Suzushi Nishimura, Soon Moon Jeong, Maki Fukuda, Toshihiko Shibanuma
  • Publication number: 20130299796
    Abstract: A method for producing a mold includes: applying a block copolymer solution made of first and second polymers on a base member; performing a first annealing process at a temperature higher than Tg of the block copolymer after drying the coating film; forming a concavity and convexity structure on the base member by removing the second polymer by an etching process; performing a second annealing process of the concavity and convexity structure at a temperature higher than Tg of the first polymer; forming a seed layer on the structure; laminating or stacking a metal layer on the seed layer by an electroforming; and peeling off the metal layer from the base member. The second annealing process enables satisfactory transfer of a concavity and convexity structure on the base member onto the metal layer.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 14, 2013
    Inventors: Satoshi MASUYAMA, Madoka TAKAHASHI, Suzushi NISHIMURA, Maki FUKUDA, Takashi SEKI
  • Patent number: 8541778
    Abstract: A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 ?m?1 or less.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: September 24, 2013
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Takashi Seki, Suzushi Nishimura, Maki Fukuda, Madoka Fukushima, Satoshi Masuyama, Soon Moon Jeong, Hideo Takezoe, Won Hoe Koo
  • Publication number: 20130186462
    Abstract: A transparent electroconductive substrate for a solar cell, comprising: a transparent supporting substrate; a transparent electroconductive layer; and a cured resin layer placed between the transparent supporting substrate and the transparent electroconductive layer, wherein concavities and convexities are formed on a surface of the cured resin layer, the surface facing the transparent electroconductive layer, and when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range from 0.5 to 10 ?m?1.
    Type: Application
    Filed: March 4, 2011
    Publication date: July 25, 2013
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hideo Takezoe, Won Hoe Koo, Suzushi Nishimura, Takashi Seki, Shigetaka Toriyama, Soon Moon Jeong, Maki Fukuda, Madoka Fukushima, Satoshi Masuyama
  • Publication number: 20120132897
    Abstract: A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 ?m?1 or less.
    Type: Application
    Filed: July 16, 2010
    Publication date: May 31, 2012
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takashi Seki, Suzushi Nishimura, Maki Fukuda, Madoka Fukushima, Satoshi Mmasuyama, Soon Moon Jeong, Hideo Takezoe, Won Hoe Koo