Patents by Inventor Satoshi Masuyama

Satoshi Masuyama 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: 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: 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: 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
  • Publication number: 20160141528
    Abstract: A method for manufacturing a substrate with a concave-convex structure includes: forming a base material layer on a substrate; forming a base layer having a concave-convex pattern by transferring a concave-convex pattern of a mold to the base material layer; and forming a coating layer by coating the concave-convex pattern of the base layer with a coating material, wherein the coating layer is formed such that a thickness of the coating layer is in a range of 25 to 150% of standard deviation of depth of concavities and convexities of the base layer. The substrate with the concave-convex structure manufactured by this method has good light extraction efficiency and effectively prevents leak current in an organic light emitting diode having this substrate.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Satoshi MASUYAMA, Toshihiko SHIBANUMA, Shigetaka TORIYAMA, Suzushi NISHIMURA
  • 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
  • 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: 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