Patents by Inventor Hidetaka Kaburagi

Hidetaka Kaburagi 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).

  • Light guiding plate manufacturing apparatus and light guiding plate manufacturing method
    Patent number: 7094290
    Abstract: A light guiding plate is manufactured with accuracy and at low cost. This invention comprises a cylindrical roller, which has a heater built-in, rotating while fixing a stamper having a dot pattern formed on its surface, substrate fixing means for reciprocating along a lower portion of the cylindrical roller in accordance with rotation of the cylindrical roller as fixing a resin substrate, and pressing means for pressing the stamper, which is fixed to the cylindrical roller, onto a surface of the resin substrate, which is fixed to the substrate fixing means, with a constant pressure.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: August 22, 2006
    Assignee: Columbia Digital Media, Inc.
    Inventors: Kazuo Kobayashi, Kazuhiko Nakano, Kunisato Kafuku, Hidetaka Kaburagi
  • Light guiding plate manufacturing apparatus and light guiding plate manufacturing method
    Publication number: 20040259003
    Abstract: A light guiding plate is manufactured with accuracy and at low cost. This invention comprises a cylindrical roller, which has a heater built-in, rotating while fixing a stamper having a dot pattern formed on its surface, substrate fixing means for reciprocating along a lower portion of the cylindrical roller in accordance with rotation of the cylindrical roller as fixing a resin substrate, and pressing means for pressing the stamper, which is fixed to the cylindrical roller, onto a surface of the resin substrate, which is fixed to the substrate fixing means, with a constant pressure.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 23, 2004
    Inventors: Kazuo Kobayashi, Kazuhiko Nakano, Kunisato Kafuku, Hidetaka Kaburagi
  • Light guiding plate manufacturing apparatus and light guiding plate manufacturing method
    Patent number: 6818157
    Abstract: A light guiding plate is manufactured with accuracy and at low cost. This invention comprises a cylindrical roller, which has a heater built-in, rotating while fixing a stamper having a dot pattern formed on its surface, substrate fixing means for reciprocating along a lower portion of the cylindrical roller in accordance with rotation of the cylindrical roller as fixing a resin substrate, and pressing means for pressing the stamper, which is fixed to the cylindrical roller, onto a surface of the resin substrate, which is fixed to the substrate fixing means, with a constant pressure.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: November 16, 2004
    Assignee: Nippon Columbia Co., Ltd.
    Inventors: Kazuo Kobayashi, Kazuhiko Nakano, Kunisato Kafuku, Hidetaka Kaburagi
  • Light guiding plate manufacturing apparatus and light guiding plate manufacturing method
    Publication number: 20020130427
    Abstract: A light guiding plate is manufactured with accuracy and at low cost. This invention comprises a cylindrical roller, which has a heater built-in, rotating while fixing a stamper having a dot pattern formed on its surface, substrate fixing means for reciprocating along a lower portion of the cylindrical roller in accordance with rotation of the cylindrical roller as fixing a resin substrate, and pressing means for pressing the stamper, which is fixed to the cylindrical roller, onto a surface of the resin substrate, which is fixed to the substrate fixing means, with a constant pressure.
    Type: Application
    Filed: March 4, 2002
    Publication date: September 19, 2002
    Inventors: Kazuo Kobayashi, Kazuhiko Nakano, Kunisato Kafuku, Hidetaka Kaburagi