Patents by Inventor Takuya Yashuhara

Takuya Yashuhara 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).

  • Front face erasable microcapsule magnetophoretic writing magnet
    Publication number: 20060292361
    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: December 28, 2006
    Inventors: Takashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue
  • Front face erasable microcapsule magnetophoretic erasing magnet
    Publication number: 20060147754
    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: July 6, 2006
    Inventors: Takashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue
  • Front face erasable microcapsule magnetophoretic display sheet, erasing magnet and writing magnet
    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
  • Front face erasable microcapsule magnetophoretic display sheet, erasing magnet and writing magnet
    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
  • Front face erasable microcapsule magnetophoretic display sheet, erasing magnet and writing magnet
    Publication number: 20030170457
    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 &mgr;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: December 18, 2002
    Publication date: September 11, 2003
    Applicant: A Son Enterprise Inc
    Inventors: Takashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue