Patents by Inventor Masanao KIKUCHI

Masanao KIKUCHI 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: 20180281239
    Abstract: Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 4, 2018
    Applicant: DEXERIALS CORPORATION
    Inventors: Yutaka MURAMOTO, Masanao KIKUCHI, Shunichi KAJIYA, Takaaki OTOWA, Yasuhiro TAKAHASHI
  • Patent number: 10065380
    Abstract: There is provided a filler-filled film, a sheet film, a stacked film, a bonded body, and a method for producing a filler-filled film, the filler-filled film including: a film main body; a plurality of concavities formed on a surface of the film main body; and a filler put in each of the concavities. A diameter of an opening surface of the concavity is at least larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of filling of the fillers in one end portion of the film main body and the rate of filling of the fillers in another portion of the film main body is less than 0.5%.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: September 4, 2018
    Assignee: DEXERIALS CORPORATION
    Inventors: Yutaka Muramoto, Masanao Kikuchi
  • Publication number: 20170326783
    Abstract: There is provided an embossed film in which the frequency of loss of concavities is smaller, the embossed film including: a film main body; and a plurality of concavities formed on a surface of the film main body. A diameter of an opening surface of the concavity is larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of loss of concavities in one end portion of the film main body and the rate of loss of concavities in the other end portion of the film main body is 10 ppm or less.
    Type: Application
    Filed: October 28, 2015
    Publication date: November 16, 2017
    Applicant: DEXERIALS CORPORATION
    Inventors: Yutaka MURAMOTO, Masanao KIKUCHI
  • Publication number: 20170320279
    Abstract: There is provided a filler-filled film, a sheet film, a stacked film, a bonded body, and a method for producing a filler-filled film, the filler-filled film including: a film main body; a plurality of concavities formed on a surface of the film main body; and a filler put in each of the concavities. A diameter of an opening surface of the concavity is at least larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of filling of the fillers in one end portion of the film main body and the rate of filling of the fillers in another portion of the film main body is less than 0.5%.
    Type: Application
    Filed: October 28, 2015
    Publication date: November 9, 2017
    Applicant: DEXERIALS CORPORATION
    Inventors: Yutaka MURAMOTO, Masanao KIKUCHI
  • Publication number: 20170299778
    Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.
    Type: Application
    Filed: August 31, 2015
    Publication date: October 19, 2017
    Applicant: DEXERIALS CORPORATION
    Inventors: Shunichi KAJIYA, Hideki TERASHIMA, Yutaka MURAMOTO, Masanao KIKUCHI, Takaaki OTOWA
  • Publication number: 20170205707
    Abstract: There is provided a method for manufacturing a master on which an arbitrary pattern is formed, the method including: forming a thin-film layer on an outer circumferential surface of a base material in a round cylindrical or round columnar shape; generating a control signal corresponding to an object on the basis of an input image in which the object is depicted; irradiating the thin-film layer with laser light on the basis of the control signal and thereby forming a thin-film pattern corresponding to the object on the thin-film layer; and forming a pattern corresponding to the object on the outer circumferential surface of the base material using, as a mask, the thin-film layer on which the thin-film pattern is formed.
    Type: Application
    Filed: July 14, 2015
    Publication date: July 20, 2017
    Applicant: DEXERIALS CORPORATION
    Inventors: Yutaka MURAMOTO, Masanao KIKUCHI
  • Publication number: 20160214282
    Abstract: Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.
    Type: Application
    Filed: December 4, 2014
    Publication date: July 28, 2016
    Applicant: DEXERIALS CORPORATION
    Inventors: Yutaka MURAMOTO, Masanao KIKUCHI, Shunichi KAJIYA, Takaaki OTOWA, Yasuhiro TAKAHASHI