Patents by Inventor Masataka Nakashima

Masataka Nakashima 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).

  • Publication number: 20110123774
    Abstract: To provide an optical laminate that can sufficiently exhibit the function of a functional material such as an antistatic agent or fine particles in the obtained laminate without using a binder material for fixing the functional material to the substrate, as well as a method for manufacturing the same, there is obtained the optical laminate by step (A1) in which the substrate is coated with a composition (a) containing a solvent capable of swelling or dissolving the substrate and the functional material, step (A2) of drying, and step (A3) of forming a resin layer on the coated substrate.
    Type: Application
    Filed: December 27, 2007
    Publication date: May 26, 2011
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Kiyotaka Matsui, Masataka Nakashima, Kiyoshi Itoh
  • Publication number: 20100259711
    Abstract: An antistatic laminate is provided that simplifies the production of a polarizing plate and, at the same time, can satisfactorily meets requirements of IPS and VA modes. The antistatic laminate is adapted for use in polarizing plates and comprises a light transparent base material and an antistatic layer provided on the light transparent base material. The antistatic layer is located between the polarizing element of the polarizing plate and a light transparent display site while using a polarizing plate.
    Type: Application
    Filed: June 25, 2010
    Publication date: October 14, 2010
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka NAKASHIMA, Norinaga Nakamura
  • Publication number: 20100035031
    Abstract: It is an object of the present invention to provide a method for producing an optical layered body having a favorable self-adhesion property and recoatability as well as favorable antistatic performance in a simple manner. An optical layered body comprises: an antistatic layer on a light-transmitting substrate; and a hard coat layer on the antistatic layer, wherein the hard coat layer includes a penetration portion partially extending through the antistatic layer, and/or an impregnation portion partially extending through the antistatic layer and impregnating the light-transmitting substrate.
    Type: Application
    Filed: December 21, 2007
    Publication date: February 11, 2010
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Kiyoshi Itoh, Masataka Nakashima, Tomoyuki Horio
  • Publication number: 20090280317
    Abstract: It is a main object of the present invention to provide an optical layered body having an excellent antistatic property and adhesion. An optical layered body comprising an antistatic layer and a hard coat layer formed in sequence on a light transmitting substrate, wherein in the cross-sectional appearance of the layered body, the cross-section phase of the hard coat layer exists in the region of the light transmitting substrate via the antistatic layer from the hard coat layer.
    Type: Application
    Filed: March 30, 2007
    Publication date: November 12, 2009
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Yoko Kinoshita, Kiyoshi Itoh
  • Patent number: 7569277
    Abstract: The present invention disclosed an optical laminate that can realize excellent contrast and image visibility. The optical laminate comprises: a light transparent base material; and an antistatic agent-containing hardcoat layer and a lower-refractive index layer provided in that order on the light transparent base material, wherein the optical laminate has a black luminance of not more than 9.3 cd/m2, and the optical laminate has a total light transmittance of not less than 80% and not more than 94%.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: August 4, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Takeshi Hirai
  • Publication number: 20090168168
    Abstract: The present invention discloses an antistatic optical laminate. The optical laminate comprises a light transparent base material and at least an antistatic layer provided on the light transparent base material, wherein the antistatic layer comprises an electroconductive polymer as an antistatic agent, the surface of the antistatic layer has a concavoconvex shape, and the height of convexes in the antistatic layer is not less than 40 nm and not more than 300 nm.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 2, 2009
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Yoko Kinoshita, Tomoyuki Horio
  • Publication number: 20090011229
    Abstract: There is provided an optical laminate comprising a hard coat layer which is excellent in an antistatic effect as well as in optical properties. The optical laminate comprises a base material; and a hard coat layer provided on the base material directly or through other layer, wherein the hard coat layer comprises a resin and electroconductive fine particles, has a PV value, defined by the ratio of the weight of the electroconductive fine particles to the weight of the resin, in the range of 3 to 50, and has an antistatic property.
    Type: Application
    Filed: March 17, 2006
    Publication date: January 8, 2009
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Masataka Nakashima, Takeshi Hirai, Yoko Kinoshita
  • Publication number: 20070247710
    Abstract: There is provided an antistatic laminate that can simplify the production of a polarizing plate and, at the same time, can satisfactorily meets requirements of IPS and VA modes. The antistatic laminate is adapted for use in polarizing plates and comprises a light transparent base material and an antistatic layer provided on said light transparent base material. The antistatic layer is not located on the upper part or above a polarizing element in said polarizing plate.
    Type: Application
    Filed: June 15, 2005
    Publication date: October 25, 2007
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Norinaga Nakamura
  • Patent number: 7278623
    Abstract: A vibration control unit in which a rolling element having a first curved surface that is a convex surface is interposed between a first and second members, and the rolling element is allowed rolling with respect to the first member in the first curved surface thereof. The rolling element has a second curved surface that faces the first curved surface and is formed of a curved surface center different from that of the first curved surface. As the rolling element, resulting from an additional force applied on the first and second curved surfaces, rolls with respect to the first member, the second member vibrates with a restoring force determined based on an average curvature radius of the first and second curved surfaces of the rolling element and a distance between curved surface centers of the first and second curved surfaces.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: October 9, 2007
    Assignee: Tokkyokiki Corporation
    Inventors: Masashi Yasuda, Shohei Minbu, Gongyu Pan, Masataka Nakashima
  • Publication number: 20060152713
    Abstract: The present invention disclosed an optical laminate that can realize excellent contrast and image visibility. The optical laminate comprises: a light transparent base material; and an antistatic agent-containing hardcoat layer and a lower-refractive index layer provided in that order on the light transparent base material, wherein the optical laminate has a black luminance of not more than 9.3 cd/m2, and the optical laminate has a total light transmittance of not less than 80% and not more than 94%.
    Type: Application
    Filed: September 9, 2005
    Publication date: July 13, 2006
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Takeshi Hirai
  • Publication number: 20060134430
    Abstract: The present invention discloses an optical laminate in which the occurrence of interface reflection and interference fringes at the interface between a light transparent base material and an antistatic layer has been effectively prevented. The optical laminate comprises a light transparent base material; and an antistatic layer and a hardcoat layer provided in that order on the light transparent base material, wherein the hardcoat layer is formed on the antistatic layer using a composition for a hardcoat layer comprising a resin and a penetrative solvent, the penetrative solvent penetrates into the antistatic layer and the light transparent base material so that the antistatic agent contained in the antistatic layer disperses into the antistatic layer or the light transparent base material.
    Type: Application
    Filed: September 22, 2005
    Publication date: June 22, 2006
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Masataka Nakashima, Takeshi Hirai, Norinaga Nakamura
  • Publication number: 20030052247
    Abstract: A vibration control unit in which a rolling element having a first curved surface that is a convex surface is interposed between a first and second members, and the rolling element is allowed rolling with respect to the first member in the first curved surface thereof. The rolling element has a second curved surface that faces the first curved surface and is formed of a curved surface center different from that of the first curved surface. As the rolling element, resulting from an additional force applied on the first and second curved surfaces, rolls with respect to the first member, the second member vibrates with a restoring force determined based on an average curvature radius of the first and second curved surfaces of the rolling element and a distance between curved surface centers of the first and second curved surfaces.
    Type: Application
    Filed: July 30, 2002
    Publication date: March 20, 2003
    Inventors: Masashi Yasuda, Shohei Minbu, Gongyu Pan, Masataka Nakashima