Patents by Inventor Tokuju Oikawa

Tokuju Oikawa 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: 20240077964
    Abstract: There are provided a conductive film, a touch sensor film, and an image display apparatus, in which disconnection of a metal wire hardly occurs even in a case where bending is repeated. The conductive film includes a base material, protruding parts disposed on the base material, each of which projects in one direction and a plurality of which are spaced apart to be disposed in a direction orthogonal to the one direction, and a metal wire that intersects the one direction and extends across the plurality of protruding parts, where in a case where a width of the protruding part in the direction orthogonal to the one direction in which the protruding part projects is denoted as Lj, and an interval between the plurality of protruding parts is denoted as Ld, 1 ?m?Lj<100 ?m and 1 ?m?Ld<100 ?m are satisfied, and in a case where a thickness of the metal wire is denoted as td, and a thickness of the protruding part is denoted as tj, tj?td is satisfied.
    Type: Application
    Filed: July 19, 2023
    Publication date: March 7, 2024
    Applicant: FUJIFILM Corporation
    Inventor: Tokuju OIKAWA
  • Publication number: 20220312656
    Abstract: An electromagnetic shielding member (11) includes a substrate (12) having a three-dimensional shape, and a conductive layer member (13) that is disposed on the substrate (12) and reflects an electromagnetic wave in a wavelength-selective manner.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Takahiko ICHIKI, Tokuju OIKAWA, Hideki YASUDA
  • Patent number: 11043528
    Abstract: A composition includes a metal particle and a resin and has a wavelength band A having a wavelength band width of 1 ?m or more in a wavelength range of 1 to 14 ?m and a wavelength band B having a lower absorbance than the wavelength band A and having a wavelength band width of 1 ?m or more, and a ratio Amin/Bmax between a minimum value Amin of an absorbance of the wavelength band A and a maximum value Bmax of an absorbance of the wavelength band B is 3 or more.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: June 22, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Hirotaka Takishita, Yoichi Hosoya, Tokuju Oikawa, Hidenori Takahashi
  • Publication number: 20190148451
    Abstract: A composition includes a metal particle and a resin and has a wavelength band A having a wavelength band width of 1 ?m or more in a wavelength range of 1 to 14 ?m and a wavelength band B having a lower absorbance than the wavelength band A and having a wavelength band width of 1 ?m or more, and a ratio Amin/Bmax between a minimum value Amin of an absorbance of the wavelength band A and a maximum value Bmax of an absorbance of the wavelength band B is 3 or more.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 16, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Hirotaka TAKISHITA, Yoichi HOSOYA, Tokuju OIKAWA, Hidenori TAKAHASHI
  • Patent number: 8705174
    Abstract: An antiglare film is provided, the antiglare film including a transparent plastic film substrate; an antiglare layer having fine recesses and projections on the surface thereof; and an abrasion resistant layer provided at an uppermost surface of the antiglare film, the abrasion resistant layer having an average film thickness of from 0.03 to 0.4 ?m, wherein the abrasion resistant layer is formed from a curable composition containing at least following components (A), (B), and (C): (A) an inorganic fine particle containing silicon oxide as a main component and having an average particle size of from 1 to 300 nm; (B) an ionizing radiation-curable resin; and (C) a polymer thickener.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: April 22, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Shuntaro Ibuki, Kenichi Fukuda, Hiroyuki Yoneyama, Tokuju Oikawa
  • Patent number: 8524116
    Abstract: A novel optical compensatory sheet comprising an optically anisotropic layer comprising at least one liquid crystal compound, at least one cellulose ester, and at least one polymer A comprising at least one repeating unit derived from a monomer having a fluoro-aliphatic group, and at least one repeating unit having a group selected from the group consisting of carboxyl group (—COOH) or a salt thereof, a sulfo group (—SO3H) or a salt thereof and a phosphonoxy group {—OP(?O) (OH)2} or a salt thereof, is disclosed. A novel optical compensatory sheet comprising an optically anisotropic layer comprising at lest one liquid crystal compound at least one polymer C, having a weight average molecular weight of not less than 5000 and less than 20000, represented by a formula (1b), and at least one polymer D, having a weight average molecular weight of not less than 20000, represented by a formula (1b), is also disclosed.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: September 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Akinobu Ushiyama, Tokuju Oikawa, Jun Watanabe, Kentaro Toyooka, Shinichi Morishima, Masaki Noro
  • Patent number: 8066390
    Abstract: An antiglare film includes: a transparent support; and an antiglare layer containing a light-transmitting particle and a light-transmitting resin, wherein the light-transmitting particle has a structure including a core particle and a shell layer, each of the core particle and the shell layer contains an organic polymer, the shell layer has a thickness of from 10 to 2,000 nm, the core particle has a refractive index of from 1.54 to 1.65, and the shell layer has a refractive index of from 1.46 to 1.53.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: November 29, 2011
    Assignee: Fujifilm Corporation
    Inventors: Tetsuya Asakura, Tokuju Oikawa, Ryuji Saneto
  • Patent number: 7875325
    Abstract: An optical film comprising a transparent film, and, on the film, at least one layer formed by applying a composition comprising a titanium compound and/or a zirconium compound and a vinyl alcohol-based resin to a surface is disclosed.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: January 25, 2011
    Assignee: Fujifilm Corporation
    Inventors: Tokuju Oikawa, Michio Nagai
  • Patent number: 7847887
    Abstract: To provide a protective film for a polarizing plate that shows a water vapor transmission rate (WVTR40) of 30 g/m2·day or less at 60° C. and a relative humidity of 40%, a water vapor transmission rate (WVTR95) 80 g/m2·day or more and 300 g/m2·day or less at 60° C. and a relative humidity of 95% and a value obtained by dividing the difference between WVTR95 and WVTR40 by the water vapor transmission rate (WVTR60) at 60° C. and a relative humidity of 60%, or (WVTR95-WVTR40) /WVTR60, 2.0 or more.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 7, 2010
    Assignee: Fujifilm Corporation
    Inventors: Masaaki Suzuki, Tokuju Oikawa, Katsumi Inoue, Shuntarou Ibuki
  • Publication number: 20100027116
    Abstract: An antiglare film is provided, the antiglare film including a transparent plastic film substrate; an antiglare layer having fine recesses and projections on the surface thereof; and an abrasion resistant layer provided at an uppermost surface of the antiglare film, the abrasion resistant layer having an average film thickness of from 0.03 to 0.4 ?m, wherein the abrasion resistant layer is formed from a curable composition containing at least following components (A), (B), and (C): (A) an inorganic fine particle containing silicon oxide as a main component and having an average particle size of from 1 to 300 nm; (B) an ionizing radiation-curable resin; and (C) a polymer thickener.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 4, 2010
    Inventors: Shuntaro IBUKI, Kenichi Fukuda, Hiroyuki Yoneyama, Tokuju Oikawa
  • Publication number: 20090262431
    Abstract: An antiglare film includes: a transparent support; and an antiglare layer containing a light-transmitting particle and a light-transmitting resin, wherein the light-transmitting particle has a structure including a core particle and a shell layer, each of the core particle and the shell layer contains an organic polymer, the shell layer has a thickness of from 10 to 2,000 nm, the core particle has a refractive index of from 1.54 to 1.65, and the shell layer has a refractive index of from 1.46 to 1.53.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 22, 2009
    Inventors: Tetsuya ASAKURA, Tokuju OIKAWA, Ryuji SANETO
  • Publication number: 20090086130
    Abstract: An optical film comprising a transparent film, and, on the film, at least one layer formed by applying a composition comprising a titanium compound and/or a zirconium compound and a vinyl alcohol-based resin to a surface is disclosed.
    Type: Application
    Filed: September 23, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tokuju Oikawa, Michio Nagai
  • Publication number: 20090066898
    Abstract: An optically-compensatory sheet comprises an optically anisotropic layer that comprises a liquid crystal compound, wherein the liquid crystal compound in the optically anisotropic layer has Smax of 0.4 or more, in which Smax is a maximum value among S1, S2 and S3, S1 is an alignment order parameter in a vicinity of an interface between the optically anisotropic layer and air; S2 is an alignment order parameter in a vicinity of an interface on a side opposite to the interface between the optically anisotropic layer and air; and S3 is an alignment order parameter in an interior of the optically anisotropic layer.
    Type: Application
    Filed: March 13, 2007
    Publication date: March 12, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tomonori Ichinose, Yohei Takahashi, Tokuju Oikawa
  • Publication number: 20080239211
    Abstract: To provide a protective film for a polarizing plate that shows a water vapor transmission rate (WVTR40) of 30 g/m2·day or less at 60° C. and a relative humidity of 40%, a water vapor transmission rate (WVTR95) 80 g/m2·day or more and 300 g/m2·day or less at 60° C. and a relative humidity of 95% and a value obtained by dividing the difference between WVTR95 and WVTR40 by the water vapor transmission rate (WVTR60) at 60° C. and a relative humidity of 60%, or (WVTR95-WVTR40)/WVTR60, 2.0 or more.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: FUJIFILM Corporation
    Inventors: Masaaki Suzuki, Tokuju Oikawa, Katsumi Inoue, Shuntarou Ibuki
  • Publication number: 20080199637
    Abstract: A novel optical compensatory sheet comprising an optically anisotropic layer comprising at least one liquid crystal compound, at least one cellulose ester, and at least one polymer A comprising at least one repeating unit derived from a monomer having a fluoro-aliphatic group, and at least one repeating unit having a group selected from the group consisting of carboxyl group (—COOH) or a salt thereof, a sulfo group (—SO3H) or a salt thereof and a phosphonoxy group {—OP(?O) (OH)2} or a salt thereof, is disclosed. A novel optical compensatory sheet comprising an optically anisotropic layer comprising at lest one liquid crystal compound at least one polymer C, having a weight average molecular weight of not less than 5000 and less than 20000, represented by a formula (1b), and at least one polymer D, having a weight average molecular weight of not less than 20000, represented by a formula (1b), is also disclosed.
    Type: Application
    Filed: June 24, 2005
    Publication date: August 21, 2008
    Applicant: FUJIFILM Corporation
    Inventors: Akinobu Ushiyama, Tokuju Oikawa, Jun Watanabe, Kentaro Toyooka, Shinichi Morishima, Masaki Noro
  • Publication number: 20080192191
    Abstract: A liquid crystal display, which allows proper optical compensation for bend-aligned mode liquid crystal cell and exhibits high contrast, excellent viewing angle properties and a high black display fidelity, is provided. A bend-aligned mode liquid crystal cell is properly optically compensated for by properly controlling the optical properties, including wavelength dispersion, of a first optical anisotropic layer and a second optical anisotropic layer.
    Type: Application
    Filed: March 10, 2006
    Publication date: August 14, 2008
    Applicant: FUJIFILM Corporation
    Inventors: Ryo Nakamura, Yoshiaki Hisakado, Michio Nagai, Tokuju Oikawa, Shigeki Uehira
  • Patent number: 7303851
    Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 4, 2007
    Assignee: Fujifilm Corporation
    Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
  • Patent number: 6828088
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, wherein 40 mol % or more of silver halide contained in the silver halide emulsion layer is silver bromide and the silver halide contains 1×10−6 mole or more per mole of silver of a metal complex containing one or more cyanide ligands, and the silver halide photographic light-sensitive material has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 4.0 or more for the optical density range of 0.1-1.5. There is provided a silver halide photographic light-sensitive material showing high contrast and high sensitivity.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tokuju Oikawa
  • Patent number: 6824962
    Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tokuju Oikawa
  • Patent number: 6818374
    Abstract: Disclosed are a silver halide photographic light-sensitive material comprising silver halide containing a metal complex having a cyanide ligand in a silver halide emulsion layer and comprising a hydrazine compound having an onium group in the molecule, and a method of developing the silver halide photographic light-sensitive material with a developer having a pH of 9.0-11.0. The silver halide photographic light-sensitive material of the present invention can provide high sensitivity, high processing stability and high contrast images.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tokuju Oikawa, Tadashi Ito, Katsuyuki Watanabe, Mitsunori Hirano, Yasutomo Kawanishi