Patents by Inventor Madoka Fukushima

Madoka Fukushima 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: 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
  • Patent number: 4351188
    Abstract: An acoustic wave source and a radio wave source are installed close to each other on the ground. When an acoustic wave pulse is transmitted vertically into the atmosphere by the acoustic wave source, spherical wavefronts formed in the atmosphere by the acoustic wave are propagated upwardly at the velocity of sound. When a continuous radio wave is transmitted from the radio wave source toward the spherical wavefronts, it is reflected by the wavefronts and the reflected radio waves are converged to form a focusing spot on the ground. The position where the spot due to the convergence of the reflected radio waves is formed with the maximum intensity is detected by means of an antenna network formed of a multiplicity of receiving antennas laid out in the pattern of a lattice. The time-course change of such positions of the spots is traced to realize remote measurement of the height distribution of wind direction and speed in the atmosphere under surveillance.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: September 28, 1982
    Assignee: Radio Research Laboratories, Ministry of Posts and Telecommunications
    Inventors: Madoka Fukushima, Kin-ichiro Akita, Yoshihisa Masuda