Patents by Inventor Mariko Goto

Mariko Goto 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).

  • Reflective cholesteric filter
    Patent number: 6906764
    Abstract: A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one of the right and left circularly polarized light components is reflected with a reflectivity smaller than the maximum reflectivity.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: June 14, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Keiji Kashima, Yukihiro Toyota, Masanori Umeya, Mariko Goto
  • Information distribution system, program guide server, and distribution data selection chart server
    Publication number: 20030106065
    Abstract: An information distribution system is provided where broadcasting contents are distributed to an IP network using a multicast address for each set of contents, and a home gateway at home connected to the IP network receives desired contents. A program guide server that retains multicast addresses used for each content distribution is also provided in the system, so that a multicast address of a desired contents can be obtained by accessing the program guide server from a program selection terminal via the IP network, and the home gateway can receive the desired contents based on the multicast address.
    Type: Application
    Filed: November 13, 2002
    Publication date: June 5, 2003
    Applicant: Matsushita Graphic communication Systems, Inc.
    Inventors: Junichi Sakai, Mamoru Nobue, Tomio Ogawa, Masayuki Imoto, Kazuyoshi Inoue, Nobuaki Tasaki, Mariko Goto
  • Reflective cholesteric filter
    Publication number: 20030038918
    Abstract: A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one of the right and left circularly polarized light components is reflected with a reflectivity smaller than the maximum reflectivity.
    Type: Application
    Filed: October 23, 2002
    Publication date: February 27, 2003
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keiji Kashima, Yukihiro Toyota, Masanori Umeya, Mariko Goto
  • Polarized light extraction optical element
    Publication number: 20020113923
    Abstract: A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one of the right and left circularly polarized light components is reflected with a reflectivity smaller than the maximum reflectivity.
    Type: Application
    Filed: April 4, 2002
    Publication date: August 22, 2002
    Inventors: Keiji Kashima, Yukihiro Toyota, Masanori Umeya, Mariko Goto