Patents Assigned to Tocom Corporation
  • Patent number: 7070856
    Abstract: Disclosed herein is a front face erasable microcapsule magnetophoretic display sheet having a support and a solid dispersion layer provided on one surface of the support and composed of microcapsules having an average particle diameter of 50 to 650 ?m, in which a liquid dispersion, a white pigment, additives and magnetic particles are encapsulated, and a binder. The magnetic particles include at least two kinds of magnetic particles different in particle diameter from each other. An erasing magnet for front face erasing and a writing magnet for front face erasable microcapsule magnetophoretic display sheet are also disclosed.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: July 4, 2006
    Assignees: A-Son Enterprise, Inc., Tocom Corporation
    Inventors: Takashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue
  • Publication number: 20060093858
    Abstract: Disclosed herein is a front face erasable microcapsule magnetophoretic display sheet having a support and a solid dispersion layer provided on one surface of the support and composed of microcapsules having an average particle diameter of 50 to 650 ?m, in which a liquid dispersion, a white pigment, additives and magnetic particles are encapsulated, and a binder. The magnetic particles include at least two kinds of magnetic particles different in particle diameter from each other. An erasing magnet for front face erasing and a writing magnet for front face erasable microcapsule magnetophoretic display sheet are also disclosed.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 4, 2006
    Applicants: TOCOM CORPORATION
    Inventors: Takashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue