Patents by Inventor Nobuo Naito

Nobuo Naito 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: 20080277157
    Abstract: An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and line parts 107 that define openings 105, provided on the transparent substrate 11. The line parts 107 have a metal mesh layer 21, and a blackening layer 25A formed on the surface of the metal layer 21, on the side of the transparent substrate 11. Matted layers 31 are formed on the side faces of the line parts 107, and an anticorrosive layer 23A is provided between the blackening layer 25A and the transparent substrate 11.
    Type: Application
    Filed: January 26, 2005
    Publication date: November 13, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20080245563
    Abstract: An electromagnetic wave shielding layer 1 comprises a transparent substrate 11, an adhesive layer 13 which is provided as needed, an electromagnetic wave shielding layer 15, and a transparent resin layer 17. The electromagnetic shielding layer 15 includes a mesh portion 103 facing a screen portion 100 of an image displaying device, a transparent resin layer anchoring portion 105 surrounding a periphery of the mesh portion 103 and including openings 105a having an opening ratio lower than that of openings 103a of the mesh portion 103, and a frame portion 107 surrounding an outer periphery of the transparent resin layer anchoring portion 105 and not having openings. The transparent resin layer 17 is provided such that it covers the surfaces of the mesh portion 103 and the transparent resin layer anchoring portion 105 and fills the openings 103a, 105a.
    Type: Application
    Filed: July 25, 2005
    Publication date: October 9, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Kazuhito Fujii
  • Patent number: 7375292
    Abstract: An electromagnetic wave shielding filter comprises a transparent substrate 11, and a metal mesh layer 21 with line parts 107 that define openings 105 of the mesh, laminated to one surface of the transparent substrate 11 by an adhesive 13. A first blackening layer 25A and an anticorrosive layer 23A are successively formed on the surfaces, on the transparent substrate side, of the line parts 107 of the metal mesh layer 21. A second blackening layer 25B is formed on surfaces, on the side opposite to the transparent substrate 11, of the line parts 107 of the metal mesh layer 21, and also on side faces of the line parts 107.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: May 20, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20080096022
    Abstract: Disclosed is an electromagnetic shielding sheet comprising a transparent base (11) and a mesh metal layer (21) arranged on one side of the transparent base (11) via an adhesive layer (13). The metal layer (21) has a mesh portion (103) wherein many opening portions (105) are surrounded by a line portion (107), and a frame portion (101) arranged around the mesh portion (103). The opening portions (105) are filled with a transparent ionizing radiation-curing resin layer (31).
    Type: Application
    Filed: January 12, 2005
    Publication date: April 24, 2008
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20080084681
    Abstract: An electromagnetic wave shielding device 1 comprises a transparent substrate 11, an adhesive layer 13 which is provided as needed, an electromagnetic wave shielding layer 15, and a transparent resin layer 17. The electromagnetic wave shielding layer 15 includes a mesh portion 103 facing a screen portion 100 of an image displaying device, a transparent resin layer anchoring portion 105 surrounding a periphery of the mesh portion 103, and including openings 105a having the same opening ratio as that of the openings 103a of the mesh portion 103, and a frame portion 107 surrounding an outer periphery of the transparent resin layer anchoring portion 105, and not having openings. The transparent resin layer 17 is provided such that it covers the surfaces of the mesh portion 103, and the transparent resin layer anchoring portion 105, and fills the openings 103a, 105a.
    Type: Application
    Filed: July 25, 2005
    Publication date: April 10, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Kazuhito Fujii
  • Publication number: 20070231587
    Abstract: An electromagnetic wave shielding filter 10 comprises a transparent substrate 1, and a mesh layer 3 containing an electrically conductive layer 2, formed on the transparent substrate 1 with a transparent adhesive layer 9. A transparent colored resin layer 4 containing a coloring agent is formed on the mesh layer 3, with a transparent barrier layer 5 interposed between the two layers. An anticorrosive layer 6 and a blackening layer 7 are formed on the electrically conductive layer 2 in the mesh layer 3. The transparent colored resin layer 4 also serves as an adhesive layer, and a functional layer 8, such as an optical filter, a protective sheet, or a display front substrate, is further laminated to the transparent colored resin layer 4.
    Type: Application
    Filed: July 8, 2005
    Publication date: October 4, 2007
    Applicant: Dai Nippon Printing Co, LTD
    Inventors: Nobuo Naito, Fumihiro Arakawa
  • Publication number: 20070181326
    Abstract: An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and a first anticorrosive layer 23A, a first blackening layer 25A, a metal layer 21, and a second anticorrosive layer 23B that are successively formed on the transparent substrate 11 through an adhesive layer 13. A second blackening layer 25B is formed so that it fully covers the side faces of the first anticorrosive layer 23A, the first blackening layer 25A, the metal layer 21, and the second anticorrosive layer 23B, as well as the front face of the second anticorrosive layer 23B. At least either of the first anticorrosive layer 23A and the second anticorrosive layer 23B contains one or more metals selected from nickel, chromium, and silicon, and also zinc and/or tin when it is initially formed, and the zinc and/or tin is removed from the first anticorrosive layer 23A and/or the second anticorrosive layer 23B in an intermediate steps.
    Type: Application
    Filed: January 20, 2005
    Publication date: August 9, 2007
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20070152560
    Abstract: A method for producing a display front panel according to the present invention comprises the steps of (1) laminating a metal layer 21 to at least one surface of a transparent substrate 11 by a first transparent adhesive layer 13, thereby obtaining a laminate, (2) providing a mesh-patterned resist layer on a surface of the metal layer 21 of the laminate, etching the metal layer 21 to remove portions thereof that are not covered with the resist layer, and removing the resist layer, thereby forming a metal mesh layer 21 having a mesh part 103 with a plurality of openings 105, and a frame part 101 around the mesh part 103, and (3) laminating a near infrared ray shielding film 41 to the face of the mesh part 103 of the metal mesh layer 21 by a second transparent adhesive layer 33, and filling the surface irregularities R of the first adhesive layer 13 exposed at the openings 105 of the mesh part 103 with the second transparent adhesive layer 33 to make the exposed roughened surface R of the first adhesive layer 1
    Type: Application
    Filed: January 19, 2005
    Publication date: July 5, 2007
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20070102192
    Abstract: An electromagnetic wave shielding filter comprises a transparent substrate 11, and a metal mesh layer 21 with line parts 107 that define openings 105 of the mesh, laminated to one surface of the transparent substrate 11 by an adhesive 13. A first blackening layer 25A and an anticorrosive layer 23A are successively formed on the surfaces, on the transparent substrate side, of the line parts 107 of the metal mesh layer 21. A second blackening layer 25B is formed on surfaces, on the side opposite to the transparent substrate 11, of the line parts 107 of the metal mesh layer 21, and also on side faces of the line parts 107.
    Type: Application
    Filed: December 14, 2004
    Publication date: May 10, 2007
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20060286381
    Abstract: An anti-reflection layer 51 is provided on one surface of a transparent substrate film 31. A specific-wavelength-light shielding layer 39 containing a coloring agent for color tone correction capable of absorbing light with specific wavelengths originating from the emission spectrum of an insert gas of a PDP, and/or a near infrared rays absorbing agent, is provided on the other surface of the transparent substrate film 31. Further, a pressure-sensitive adhesive layer 41 is optionally provided on the specific-wavelength-light shielding layer 39.
    Type: Application
    Filed: August 30, 2004
    Publication date: December 21, 2006
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20060194020
    Abstract: On one surface of a transparent substrate film 31 is provided directly or through an adhesive a metal layer 35 including a mesh work area 203 and a frame part 201 that surrounds the mesh work area 203. To the metal layer 35 are laminated a smoothing resin layer 39 and an adhesive layer 41. The transparent substrate film 31 side surface of the metal layer 35 is subjected to blackening treatment, thereby forming on this surface a blackening treatment layer 37. The smoothing resin layer 39 contains a near infrared rays absorbing agent, and the adhesive layer 41 contains a coloring agent for color tone correction that absorbs light with specific wavelengths originating from the emission spectrum of an insert gas.
    Type: Application
    Filed: August 26, 2004
    Publication date: August 31, 2006
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20060154092
    Abstract: A front panel for plasma display comprises a transparent substrate 11 and an electromagnetic wave shielding layer 30 provided on one surface of the transparent substrate 11 through a first transparent adhesive layer 21. The electromagnetic wave shielding layer 30 comprises a transparent substrate film 31, a metal layer 35 that includes a mesh part 203 and a frame part 201 surrounding the mesh part 203, and a smoothing resin layer 39. On the metal layer 35 is provided a blackening treatment layer 37. A third transparent adhesive layer 41 and a transparent protective layer 50 are laminated in this order to the electromagnetic wave shielding layer 30. The smoothing resin layer 39 and/or the third transparent adhesive layer 41 contains a near infrared rays absorbing agent and a coloring agent for color tone correction.
    Type: Application
    Filed: July 27, 2004
    Publication date: July 13, 2006
    Applicant: DAI NIPPON PRINTING CO., LTD
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Patent number: 6091469
    Abstract: A light reflector for use in a reflective-type liquid-crystal display has a prism sheet, which is made from a transparent base material, the front surface of which has formed on it a light-diffusing layer that diffuses incident light and the reverse side of which has a plurality of unit prisms that are arranged in a striped arrangement and made of an optically transparent resin, these prisms extending in a vertical direction, and having a cross-section that is the shape of a scalene triangle, and also has a light-reflecting sheet that is in opposition to the group of prisms on the rear surface of the prism sheet, the opposing surface of this light-reflecting sheet reflecting transmitted light and being disposed in parallel to the prism sheet, so that incident light and exiting light are not mutually parallel, thereby achieving both a wide viewing angle and a bright display.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: July 18, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Nobuo Naito
  • Patent number: 6075649
    Abstract: The cross section of the vertex parts 12B of unit lenses 12 of a lens film 10 suitable for use in a planar light source apparatus for a liquid-crystal panel are the shape of an arc, this arc having a radius in of at least 10 .mu.m, but not greater than 25 .mu.m.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: June 13, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Nobuo Naito
  • Patent number: 5797668
    Abstract: A lens film provided in front of a light guide plate of a surface illuminant device comprises a base film, and a plurality of triangular parallel prisms formed in a two-dimensional arrangement on one surface of the base film integrally with the latter to form an exit surface. Each prism has a cross section of the shape of a isosceles triangle. The shape of the triangular prisms meets conditions represented by: ##EQU1## 0.5.ltoreq.R.ltoreq.1.0 where .theta.1 is a peak exit angle at which a direction, in which most part of light leaving an exit surface of a light guide plate toward the lens film travels, is inclined to a normal to an entrance surface of the lens film, .theta..sub.2 is an apex angle of the triangular prisms, and n is refractive index of the lens film. The lens film deflects incoming light so that most part of the light leaving the lens film travels in a direction substantially parallel to a normal to its imaginary exit surface, and serves to increase the head-on luminance.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: August 25, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroshi Kojima, Nobuo Naito