Patents by Inventor Eiki Ooyanagi

Eiki Ooyanagi 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).

  • Optical element including a plurality of structures and hard coat layer formed thereon and method for making the same, master and method for making the same, and display apparatus
    Patent number: 8547639
    Abstract: An optical element includes a substrate including protruding structures on the surface and a hard coat layer formed on the substrate. An irregular shape is formed by the structures. An irregular shape resembling the irregular shape of the substrate is formed on a surface of the hard coat layer and is smoother than the that of the substrate. The size of bottoms of the structures changes at random within the range of the minimum distance Rm to the maximum distance RM (Rm: minimum value of the shortest distance from the center of gravity of the bottom of the structure to the rim of the bottom, RM: maximum value of the longest distance from the center of gravity of the bottom of the structure to the rim of the bottom). Neighboring structures have bottoms in contact or substantially in contact with one another. Rm and RM satisfy Rm/RM?0.9.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 1, 2013
    Assignee: Sony Corporation
    Inventors: Hitoshi Watanabe, Atsushi Uchida, Masayuki Ishiwata, Mikihisa Mizuno, Morio Tominaga, Eiki Ooyanagi
  • OPTICAL ELEMENT AND METHOD FOR MAKING THE SAME, MASTER AND METHOD FOR MAKING THE SAME, AND DISPLAY APPARATUS
    Publication number: 20100177398
    Abstract: An optical element includes a substrate including protruding structures on the surface and a hard coat layer formed on the substrate. An irregular shape is formed by the structures. An irregular shape resembling the irregular shape of the substrate is formed on a surface of the hard coat layer and is smoother than the that of the substrate. The size of bottoms of the structures changes at random within the range of the minimum distance Rm to the maximum distance RM (Rm: minimum value of the shortest distance from the center of gravity of the bottom of the structure to the rim of the bottom, RM: maximum value of the longest distance from the center of gravity of the bottom of the structure to the rim of the bottom). Neighboring structures have bottoms in contact or substantially in contact with one another. Rm and RM satisfy Rm/RM?0.9.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 15, 2010
    Applicant: SONY CORPORATION
    Inventors: Hitoshi Watanabe, Atsushi Uchida, Masayuki Ishiwata, Mikihisa Mizuno, Morio Tominaga, Eiki Ooyanagi