Patents by Inventor Yoshiaki Shiina

Yoshiaki Shiina 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: 7553059
    Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: June 30, 2009
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Kenjiro Kuroda, Mitsuru Endo, Natsuka Sakai, Godai Fukunaga, Tomohiro Nakagome, Yoshiaki Shiina, Luis Manuel Murillo-Mora
  • Patent number: 7374328
    Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: May 20, 2008
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Kenjiro Kuroda, Mitsuru Endo, Natsuka Sakai, Godai Fukunaga, Tomohiro Nakagome, Yoshiaki Shiina, Luis Manuel Murillo-Mora
  • Publication number: 20080055929
    Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 6, 2008
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Kenjiro Kuroda, Mitsuru Endo, Natsuka Sakai, Godai Fukunaga, Tomohiro Nakagome, Yoshiaki Shiina, Luis Murillo-Mora
  • Publication number: 20070236940
    Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.
    Type: Application
    Filed: June 6, 2007
    Publication date: October 11, 2007
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Kenjiro Kuroda, Mitsuru Endo, Natsuka Sakai, Godai Fukunaga, Tomohiro Nakagome, Yoshiaki Shiina, Luis Murillo-Mora
  • Patent number: 7190517
    Abstract: A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by means of a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 13, 2007
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Takashi Abe, Tsutomu Yoshida, Kikuko Matsumura, Yoshiaki Shiina
  • Publication number: 20060039066
    Abstract: A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by means of a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.
    Type: Application
    Filed: October 21, 2005
    Publication date: February 23, 2006
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Takashi Abe, Tsutomu Yoshida, Kikuko Matsumura, Yoshiaki Shiina
  • Patent number: 6984046
    Abstract: A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: January 10, 2006
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Takashi Abe, Tsutomu Yoshida, Kikuko Matsumura, Yoshiaki Shiina
  • Publication number: 20040207918
    Abstract: A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by means of a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.
    Type: Application
    Filed: August 22, 2003
    Publication date: October 21, 2004
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Takashi Abe, Tsutomu Yoshida, Kikuko Matsumura, Yoshiaki Shiina
  • Patent number: 6709542
    Abstract: A thermal transfer recording medium including a substrate, and a thermal transfer recording layer formed on the substrate and mainly containing a coloring pigment, an amorphous organic high polymer and colorless or light-colored fine particles, the thickness of the thermal transfer recording layer being in the range of 0.2·m to 1.0·m, wherein the mixing ratios of the coloring pigment, the amorphous organic high polymer and the fine particles are confined to 20-60 parts by weight, 40-70 parts by weight and 1-30 parts by weight, respectively. An image-forming method using the thermal transfer recording medium, and an image-bearing body formed from the thermal transfer recording medium are also disclosed.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: March 23, 2004
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Akira Naito, Yoshiaki Shiina, Kazumichi Shibuya
  • Publication number: 20030059585
    Abstract: A thermal transfer recording medium comprising a substrate, and multi-color thermal transfer recording layers, each of the multi-color thermal transfer recording layers being repeatedly formed for each color along the longitudinal direction of the substrate, wherein each of the multi-color thermal transfer recording layers contains a coloring pigment, an amorphous organic polymer and fine particles. One of the multi-color thermal transfer recording layers is formed to have a larger thickness than the other of the multi-color thermal transfer recording layers. Each of the multi-color thermal transfer recording layers which are successively transferred, excluding the color thermal transfer recording layer to be transferred latest, is formed to have an average thickness of 0.6 &mgr;m or less.
    Type: Application
    Filed: May 31, 2002
    Publication date: March 27, 2003
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Akira Naito, Yoshiaki Shiina, Kazumichi Shibuya, Masakazu Amahara
  • Patent number: 6468379
    Abstract: A thermal transfer recording medium comprising a substrate, and multi-color thermal transfer recording layers, each of the multi-color thermal transfer recording layers being repeatedly formed for each color along the longitudinal direction of the substrate, wherein each of the multi-color thermal transfer recording layers contains a coloring pigment, an amorphous organic polymer and fine particles. One of the multi-color thermal transfer recording layers is formed to have a larger thickness than the other of the multi-color thermal transfer recording layers. Each of the multi-color thermal transfer recording layers which are successively transferred, excluding the color thermal transfer recording layer to be transferred latest, is formed to have an average thickness of 0.6 &mgr;m or less.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: October 22, 2002
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Akira Naito, Yoshiaki Shiina, Kazumichi Shibuya, Masakazu Amahara