Patents by Inventor Akira Ichiki

Akira Ichiki 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: 20130299216
    Abstract: A transparent electrode sheet includes a transparent support having thereon patterned electrodes, and an absolute value of a difference between a reflection chromaticity of a surface of the electrode of far side from the transparent support and a reflection chromaticity of a surface of the electrode of near side to the transparent support is not more than 2.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventor: Akira ICHIKI
  • Patent number: 8513878
    Abstract: A spontaneous emission display includes a support, a first electrode section provided on the support and having a fine wire structure portion made of a conductive metal and a translucent conductive film, and a display section formed on the first electrode section and having a light-emitting layer. The volume resistance of the fine wire structure portion of the first electrode is 10?4 ?·cm or less and/or the surface resistance thereof is 100 ?/sq or less. The volume resistance of the conductive film is 0.05 ?·cm or more and/or the surface resistance thereof is 100 ?/sq or more. When the surface resistance of the first electrode section before a bending test is denoted by R1 and that after the bending test is denoted by R2, R2/R1<18 is satisfied.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 20, 2013
    Assignee: Fujifilm Corporation
    Inventors: Tsukasa Tokunaga, Makoto Kusuoka, Tadashi Kuriki, Akira Ichiki
  • Patent number: 8314986
    Abstract: A transparent electromagnetic wave-shielding filter, containing a support, a conductive layer provided on the support, and a hard coat layer provided on the conductive layer, wherein the conductive layer is formed by subjecting an emulsion layer which contains a silver halide and a binder and is coated on the support, to exposure and developing process, wherein the hard coat layer is formed by coating a coating liquid for forming the hard coat layer with a solvent on the conductive layer, and wherein the emulsion layer contains a compound soluble in the solvent of the coating liquid for forming the hard coat layer.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: November 20, 2012
    Assignee: Fujifilm Corporation
    Inventors: Hiroshi Sakuyama, Akira Ichiki, Hideaki Nomura
  • Publication number: 20120285726
    Abstract: Disclosed are: an electrically conductive element having high electrical conductivity; a photosensitive material for formation of an electrically conductive element, which is suitable for producing the electrically conductive element; and an electrode. The electrically conductive element comprises: a support; a metal pattern layer comprising an electrically conductive metal; and an electrically conductive microparticle-containing layer comprising needle-shaped electrically conductive microparticles having an average long axis length of from 0.2 ?m to 20 ?m, an average short axis length of from 0.01 ?m to 0.02 ?m, and an aspect ratio of 20 or more, a binder, and a sucrose fatty acid ester.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 15, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Tsukasa Tokunaga, Akira Ichiki
  • Publication number: 20110308846
    Abstract: A conductive film has a transparent support, a first conductive silver image disposed on one main surface of the transparent support, and a second conductive silver image disposed on the other main surface of the transparent support. The first and second conductive silver images are obtained by forming at least one silver halide emulsion layer on each of the surfaces of the transparent support and then exposing and developing the silver halide emulsion layer. The first silver image and the second silver image each contain a net-like structure in a region required to be transparent. The net-like structure comprises thin metal wires having a line width of 10 ?m or less, and forms a conductive layer having a sheet resistance of 50 ohm/sq or less.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicant: FUJIFILM CORPORATION
    Inventor: Akira ICHIKI
  • Patent number: 8071271
    Abstract: Disclosed is a method for producing a conductive film, which includes a silver metal forming step for forming a silver metal portion by exposing and developing a photosensitive material which has a silver salt-containing layer containing a silver salt on a supporting body, and a smoothing step for smoothing the silver metal portion. The smoothing step is performed by calender roll at a line pressure of not less than 1960 N/cm (200 kgf/cm). Consequently, the surface resistance of the film after development can be reduced in production of a conductive film which is effective for shielding electromagnetic waves.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 6, 2011
    Assignee: Fujifilm Corporation
    Inventors: Akira Ichiki, Makoto Kusuoka
  • Patent number: 7943291
    Abstract: A photosensitive material for forming a conductive film having a support, a silver salt-containing emulsion layer over the support, and one or more optional layers formed over the support or the silver salt-containing emulsion layer side of the support, wherein any one of the silver salt-containing emulsion layer or the optional layer(s) contains conductive fine particles and a binder, and the ratio by mass of the conductive fine particles to the binder (the conductive fine particles/the binder) is from 1/33 to 1.5/1.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: May 17, 2011
    Assignee: Fujifilm Corporation
    Inventors: Tsukasa Tokunaga, Akira Ichiki, Yuichi Shirasaki
  • Patent number: 7866037
    Abstract: A metallization forming method comprises the steps of: patterning a silver halide emulsion on a surface of at least one side of a substrate in accordance with a desired metallization pattern to form a patterned emulsion layer; exposing the patterned emulsion layer; and thereafter developing the exposed patterned emulsion layer to form a patterned conductive silver layer having the metallization pattern.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: January 11, 2011
    Assignee: Fujifilm Corporation
    Inventors: Seiichi Inoue, Akira Ichiki
  • Publication number: 20100282505
    Abstract: A method for producing a conductive film, which comprises: exposing and developing a light-sensitive material comprising a support and thereon an emulsion layer containing a silver salt emulsion to form a metallic silver; and then subjecting the light-sensitive material to a smoothing treatment (such as a calender treatment).
    Type: Application
    Filed: April 2, 2008
    Publication date: November 11, 2010
    Applicant: FUJIFILM Corporation
    Inventors: Akira Ichiki, Joh Kumura, Tadashi Kuriki, Tsukasa Tokunaga
  • Publication number: 20100243923
    Abstract: A transparent electromagnetic wave-shielding filter, containing a support, a conductive layer provided on the support, and a hard coat layer provided on the conductive layer, wherein the conductive layer is formed by subjecting an emulsion layer which contains a silver halide and a binder and is coated on the support, to exposure and developing process, wherein the hard coat layer is formed by coating a coating liquid for forming the hard coat layer with a solvent on the conductive layer, and wherein the emulsion layer contains a compound soluble in the solvent of the coating liquid for forming the hard coat layer.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Hiroshi SAKUYAMA, Akira ICHIKI, Hideaki NOMURA
  • Publication number: 20100190111
    Abstract: Disclosed is a method for producing a conductive film, which includes a silver metal forming step for forming a silver metal portion by exposing and developing a photosensitive material which has a silver salt-containing layer containing a silver salt on a supporting body, and a smoothing step for smoothing the silver metal portion. The smoothing step is performed by calender roll at a line pressure of not less than 1960 N/cm (200 kgf/cm). Consequently, the surface resistance of the film after development can be reduced in production of a conductive film which is effective for shielding electromagnetic waves.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 29, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Akira Ichiki, Makoto Kusuoka
  • Patent number: 7749686
    Abstract: A method for producing a conductive film, which comprises: exposing and developing a light-sensitive material comprising a support and thereon an emulsion layer containing a silver salt emulsion to form a metallic silver; and then subjecting the light-sensitive material to a smoothing treatment (such as a calender treatment).
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: July 6, 2010
    Assignee: Fujifilm Corporation
    Inventors: Akira Ichiki, Joh Kumura
  • Publication number: 20090324902
    Abstract: A photosensitive material for forming a conductive film having a support, a silver salt-containing emulsion layer over the support, and one or more optional layers formed over the support or the silver salt-containing emulsion layer side of the support, wherein any one of the silver salt-containing emulsion layer or the optional layer(s) contains conductive fine particles and a binder, and the ratio by mass of the conductive fine particles to the binder (the conductive fine particles/the binder) is from 1/33 to 1.5/1.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 31, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tsukasa TOKUNAGA, Akira Ichiki, Yuichi Shirasaki
  • Publication number: 20090295285
    Abstract: A spontaneous emission display includes a support, a first electrode section provided on the support and having a fine wire structure portion made of a conductive metal and a translucent conductive film, and a display section formed on the first electrode section and having a light-emitting layer. The volume resistance of the fine wire structure portion of the first electrode is 10?4 ?·cm or less and/or the surface resistance thereof is 100 ?/sq or less. The volume resistance of the conductive film is 0.05 ?·cm or more and/or the surface resistance thereof is 100 ?/sq or more. When the surface resistance of the first electrode section before a bending test is denoted by R1 and that after the bending test is denoted by R2, R2/R1<18 is satisfied.
    Type: Application
    Filed: September 28, 2007
    Publication date: December 3, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Tsukasa Tokunaga, Makoto Kusuoka, Tadashi Kuriki, Akira Ichiki
  • Publication number: 20090241334
    Abstract: A metallization forming method comprises the steps of: patterning a silver halide emulsion on a surface of at least one side of a substrate in accordance with a desired metallization pattern to form a patterned emulsion layer; exposing the patterned emulsion layer; and thereafter developing the exposed patterned emulsion layer to form a patterned conductive silver layer having the metallization pattern.
    Type: Application
    Filed: March 11, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Seiichi Inoue, Akira Ichiki
  • Publication number: 20080085406
    Abstract: An optical member having a light diffusing layer which hardly causes a whitening phenomenon by an organic solvent is provided. An optical member including a transparent support made from a translucent resin having thereon at least one light diffusing layer containing an organic polymer fine particle, wherein the light diffusing layer is formed by coating a hydrophilic binder.
    Type: Application
    Filed: February 17, 2006
    Publication date: April 10, 2008
    Applicant: Fujifilm Corporation
    Inventors: Tatsuo Kusayanagi, Akihiko Takeda, Akira Ichiki
  • Publication number: 20070269675
    Abstract: A method for producing a conductive film, which comprises: exposing and developing a light-sensitive material comprising a support and thereon an emulsion layer containing a silver salt emulsion to form a metallic silver; and then subjecting the light-sensitive material to a smoothing treatment (such as a calender treatment).
    Type: Application
    Filed: September 29, 2006
    Publication date: November 22, 2007
    Applicant: Fujifilm Corporatrion
    Inventors: Akira Ichiki, Joh Kumura