Patents by Inventor Tomoya Oohira

Tomoya Oohira 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).

  • Patent number: 7815320
    Abstract: The present invention aims to provide an antiglare light diffusing member utilizing internal diffusion and surface diffusion in combination, wherein a surface haze value mainly representing the degree of the surface diffusion and an internal haze value mainly representing the degree of the internal diffusion are easily adjusted independently from each other. An antiglare light diffusing member comprising an antiglare light diffusing layer comprising a binder matrix and a particle A and a particle B on a transparent base material, wherein the difference between the refraction index of the particle A and the refraction index of the binder matrix is less than 0.02, and the difference between the refraction index of the particle B and the refraction index of the binder matrix is in the range of 0.03-0.20.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: October 19, 2010
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Toru Ookubo, Tomoya Oohira
  • Patent number: 7708414
    Abstract: An antiglare film is disclosed including a transparent substrate; and an antiglare layer including a binder matrix and a particle, wherein reflectivity of 5° angle of a surface of the antiglare film which surface is in the antiglare layer side among both sides of the antiglare film is 2.4-4.4%, wherein image clarity (C(0.5)+C(1.0)+C(2.0)) measured by reflection method on an antiglare layer side is 20-70%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 4, 2010
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Hisamitsu Kameshima, Tomoya Oohira, Tomo Yoshinari, Kae Takahashi
  • Publication number: 20080212190
    Abstract: An antiglare film is disclosed including a transparent substrate; and an antiglare layer including a binder matrix and a particle, wherein reflectivity of 5° angle of a surface of the antiglare film which surface is in the antiglare layer side among both sides of the antiglare film is 2.4-4.4%, wherein image clarity (C(0.5)+C(1.0)+C(2.0)) measured by reflection method on an antiglare layer side is 20-70%, and wherein difference in refractive index between the binder matrix and the particle is equal to or less than 0.07.
    Type: Application
    Filed: September 28, 2007
    Publication date: September 4, 2008
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Hisamitsu Kameshima, Tomoya Oohira, Tomo Yoshinari, Kae Takahashi
  • Publication number: 20080030861
    Abstract: The present invention aims to provide an antiglare light diffusing member utilizing internal diffusion and surface diffusion in combination, wherein a surface haze value mainly representing the degree of the surface diffusion and an internal haze value mainly representing the degree of the internal diffusion are easily adjusted independently from each other. An antiglare light diffusing member comprising an antiglare light diffusing layer comprising a binder matrix and a particle A and a particle B on a transparent base material, wherein the difference between the refraction index of the particle A and the refraction index of the binder matrix is less than 0.02, and the difference between the refraction index of the particle B and the refraction index of the binder matrix is in the range of 0.03-0.20.
    Type: Application
    Filed: January 12, 2007
    Publication date: February 7, 2008
    Inventors: Toru Ookubo, Tomoya Oohira