Patents by Inventor Naoyuki Hayashi

Naoyuki Hayashi 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: 7820071
    Abstract: A light modulating material comprising at least one kind of dichroic dye having a substituent represented by the following Formula (1) and at least one kind of host liquid crystal between a pair of electrodes, and changing the transmittance of incident light. In the formula (1), Het is oxygen atom or sulfur atom; B1 and B2 each independently represent an arylene group, a heteroarylene group or a bivalent cyclic aliphatic hydrocarbon group; Q1 represents a bivalent linking group; C1 represents an alkyl group, a cycloalkyl group, an alkoxy group, an alkoxycarbonyl group, an acyl group, or an acyloxy group; j represents 0 or 1; p, q and r each independently represent an integer from 0 to 5; n represents an integer from 1 to 3; (p+r)×n is an integer from 3 to 10.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: October 26, 2010
    Assignee: Fujifilm Corporation
    Inventors: Takashi Kato, Koji Takaku, Naoyuki Hayashi, Akihide Osaku
  • Publication number: 20100227084
    Abstract: A liquid crystal composition includes a dichroic dye represented by Formula (1) below, a nematic liquid crystal and at least two chiral reagents. R1 to R8 each independently represent a hydrogen atom or a substituent, in which at least one of R1 to R8 represents a substituent represented by -(Het)m-{(B1)p-(Q1)q-(B2)r}n—C1. A reflective display element electrodes at least one of which is a transparent electrode, and a liquid crystal layer placed between the pair of electrodes and containing the liquid crystal composition.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 9, 2010
    Inventors: Takashi KATO, Naoyuki Hayashi
  • Patent number: 7782518
    Abstract: There is provided an electrodeposition method light modulating device including: (1) a transparent electrode, to which a polymer having a metallocene at a side chain thereof is fixed by a chemical bond; (2) a transparent electrode that is disposed to face the transparent electrode (1), and forms metal through a reducing reaction of metal ions thereon; and (3) an electrolytic solution containing the metal ions, which can be reduced by applying current thereto, and disposed between the transparent electrode (1) and the transparent electrode (2). In an electrodeposition method reflective display device, the electrolytic solution is held by a gelatinous polymer, and the white pigment is dispersed in the gelatinous polymer.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: August 24, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Hayashi, Koichi Kawamura, Takashi Kato
  • Patent number: 7736533
    Abstract: A liquid crystal composition including a liquid crystal and at least three anthraquinone dyes, at least two of the anthraquinone dyes having a substituent represented by the following Formula (I): wherein in Formula (I), * represents a linking position; R25 and R26 each independently represent an alkyl group, a halogen atom or an alkoxy group; R27 represents an alkyl group, an acyl group or an alkoxy group; R28 and R29 each independently represent a hydrogen atom or a substitutent; T1 represents an arylene group or a heteroarylene group; Z represents an oxygen atom, a sulfur atom or a carbonyl group; m represents an integer of 0 to 2; and i represents 0 or 1, wherein when i is 1 and Z is an oxygen atom or a sulfur atom, R27 is not an alkoxy group, and when i is 1 and Z is a carbonyl group, R27 is not an acyl group.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: June 15, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Koji Takaku, Katsuyuki Yofu, Naoyuki Hayashi, Takashi Kato
  • Publication number: 20100085319
    Abstract: The organic electroconductive polymer coating liquid of the present invention contains an electroconductive polymer and a dopant, which is a water-soluble polymer, dispersed in at least one of a monohydric alcohol, a ketone or water. The viscosity of this dispersion is 6.0 mPa·s or less, and the average value of a dispersed particle diameter of the electroconductive polymer and the dopant is 50 nm or less.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 8, 2010
    Inventors: Naoyuki HAYASHI, Takashi Kato
  • Publication number: 20100075139
    Abstract: An electroconductive material has a support, at least one electroconductive layer on or above the support, and an adhesive layer containing at least two binder resins between the support and the electroconductive layer. Preferably, the electroconductive layer contains PEDOT and PSS, the support is composed of PET, and the adhesive layer contains a polyurethane resin and an acrylic resin.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 25, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Takashi KATO, Naoyuki HAYASHI, Naoya IMAMURA
  • Publication number: 20100047624
    Abstract: The electroconductive film of the present invention contains an electroconductive polymer and a compound represented by the following Formula (1). In Formula (1), Y is a hydrogen atom, a carbon atom, a hetero atom, a hydroxy group, a mercapto group, a group derived from an amino group, a group derived from an alkyl group, a group derived from an acyl group, a group derived from an aryl group, a group derived from an alkoxy group, a group derived from an aryloxy group, or a group derived from a heteroaryl group. L is a single bond, a divalent hydrocarbon group, a divalent hetero atom or an imino group. m is an integer of 1 or more.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 25, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Katsuyuki YOFU, Takashi KATO, Naoyuki HAYASHI
  • Publication number: 20100039595
    Abstract: A liquid crystal device including a pair of electrodes provided with a vertical alignment film and a liquid crystal layer disposed between the pair of electrodes and including a liquid crystal composition containing a liquid crystal with positive dielectric anisotropy, a dichroic dye and a chiral reagent, with a ratio (P/G) of a chiral pitch length (P) of the liquid crystal composition to a gap (G) between the pair of electrodes being from 0.06 to less than 1.0.
    Type: Application
    Filed: August 28, 2008
    Publication date: February 18, 2010
    Inventors: Naoyuki Hayashi, Takashi Kato, Koji Takaku, Katsuyuki Yofu
  • Publication number: 20090297735
    Abstract: A light modulating material comprising at least one kind of dichroic dye having a substituent represented by the following Formula (1) and at least one kind of host liquid crystal between a pair of electrodes, and changing the transmittance of incident light. In the formula (1), Het is oxygen atom or sulfur atom; B1 and B2 each independently represent an arylene group, a heteroarylene group or a bivalent cyclic aliphatic hydrocarbon group; Q1 represents a bivalent linking group; C1 represents an alkyl group, a cycloalkyl group, an alkoxy group) an alkoxycarbonyl group, an acyl group, or an acyloxy group; j represents 0 or 1; p, q and r each independently represent an integer from 0 to 5; n represents an integer from 1 to 3; (p+r)×n is an integer from 3 to 10.
    Type: Application
    Filed: December 8, 2006
    Publication date: December 3, 2009
    Applicant: FUJI-FILM CORPORATION
    Inventors: Takashi Kato, Koji Takaku, Naoyuki Hayashi, Akihide Osaku
  • Patent number: 7623203
    Abstract: The invention provides a light modulating material capable of supplying a predetermined light modulating property over a long period of time regardless of an incident light condition. The light modulating material includes at least: a first liquid crystal layer which has at least a dichroic dye and changes from a colorless transparency state to a colored transparency state when voltage is applied thereto; and a second liquid crystal layer which changes from a colorless transparency state to a white light-scattering state when voltage is applied thereto. The second liquid crystal layer is provided closer to a surface of the light modulating material on which light is incident compared to the first liquid crystal layer.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: November 24, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Hayashi, Koji Takaku, Takashi Kato
  • Publication number: 20090253879
    Abstract: The present invention provides a polymer compound having a repeating structure represented by the following Formula (1) or Formula (3). In Formula (1) or Formula (3), R1, R2 and R3 each independently represent a hydrogen atom or an alkyl group; and R4 represents a straight-chained or branched alkyl group having 10 or more carbon atoms. X1 and X2 each represent a divalent linking group. x, y and z each represent mole %, and satisfy the conditions of 0<x?90, 0<y?90, 0<z?2.5, and 70?x+y+z?100. B represents a quaternary ammonium ion, in which at least one alkyl group having 10 or more carbon atoms is bonded to the nitrogen atom of the quaternary ammonium ion, or a cation with delocalized charge; and A represents a counter anion therefor. D represents a phosphoric acid ion which may be alkyl-substituted, a phosphonic acid ion, a carboxylic acid ion, a sulfuric acid ion, a sulfite ion, or the following Anion (II), (III) or (IV); and E represents a counter cation therefor.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 8, 2009
    Applicants: FUJIFILM CORPORATION, FUJI XEROX CO., LTD.
    Inventors: Ryo Nishio, Naoyuki Hayashi, Takashi Kato, Ryojiro Akashi
  • Publication number: 20090244693
    Abstract: The polymer gel-containing composition of the present invention contains a solvent having a dielectric constant ? of 5 or less at 20° C., and an ionic polymer gel whose volume is changeable due to being driven with voltage. The ionic polymer gel preferably has a hydrophobic group and an ionic group, and the ionic group preferably has delocalized charge. Further, the ionic polymer gel preferably has a hydrophilic group.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 1, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Ryo NISHIO, Naoyuki HAYASHI, Takashi KATO, Ryojiro AKASHI
  • Publication number: 20090218549
    Abstract: A nanocarbon film that is produced in such a manner that, after a nanocarbon dispersion containing nanocarbon and a dispersant is used to form a film containing the nanocarbon and the dispersant, an external stimulus is applied to the film to at least partially decompose the dispersant contained in the film. Light irradiation is preferably applied as the external stimulus.
    Type: Application
    Filed: February 24, 2009
    Publication date: September 3, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Takashi Kato, Naoyuki Hayashi
  • Publication number: 20090168139
    Abstract: There is provided an electrodeposition method light modulating device including: (1) a transparent electrode, to which a polymer having a metallocene at a side chain thereof is fixed by a chemical bond; (2) a transparent electrode that is disposed to face the transparent electrode (1), and forms metal through a reducing reaction of metal ions thereon; and (3) an electrolytic solution containing the metal ions, which can be reduced by applying current thereto, and disposed between the transparent electrode (1) and the transparent electrode (2). In an electrodeposition method reflective display device, the electrolytic solution is held by a gelatinous polymer, and the white pigment is dispersed in the gelatinous polymer.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 2, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Naoyuki Hayashi, Koichi Kawamura, Takashi Kato
  • Publication number: 20090098314
    Abstract: A liquid crystal composition including a liquid crystal and at least three anthraquinone dyes, at least two of the anthraquinone dyes having a substituent represented by the following Formula (I): wherein in Formula (I), * represents a linking position; R25 and R26 each independently represent an alkyl group, a halogen atom or an alkoxy group; R27 represents an alkyl group, an acyl group or an alkoxy group; R28 and R29 each independently represent a hydrogen atom or a substitutent; T1 represents an arylene group or a heteroarylene group; Z represents an oxygen atom, a sulfur atom or a carbonyl group; m represents an integer of 0 to 2; and i represents 0 or 1, wherein when i is 1 and Z is an oxygen atom or a sulfur atom, R27 is not an alkoxy group, and when i is 1 and Z is a carbonyl group, R27 is not an acyl group.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 16, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Koji Takaku, Katsuyuki Yofu, Naoyuki Hayashi, Takashi Kato
  • Publication number: 20080292817
    Abstract: The present invention provides a liquid crystal composition having at least a liquid crystal and a chiral dopant, in which the chiral dopant is a compound having a liquid crystalline group of a specific structure bonded to a rigid optically active compound. The present invention provides a liquid crystal element having at least a pair of electrodes in which at least one of the electrodes is a transparent electrode, and a liquid crystal layer containing the liquid crystal composition. The present invention also provides a reflective display material and a light-controlling material having at least the liquid crystal element, and a method of preparing the liquid crystal element by adding the chiral dopant to a host liquid crystal.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Inventors: Koji Takaku, Naoyuki Hayashi, Takashi Kato
  • Patent number: 7364776
    Abstract: A novel display device is disclosed. The display device comprises a plural of liquid crystal layers disposed between a pair of electrodes respectively, wherein each of the liquid crystal layers shows an absorption peak at a different wavelength and comprises at least one dichroic dye and at least one dual-frequency switchable liquid crystal as a host liquid crystal.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: April 29, 2008
    Assignee: Fujifilm Corporation
    Inventors: Takashi Katoh, Koji Takaku, Naoyuki Hayashi
  • Publication number: 20080094551
    Abstract: The invention provides a light modulating material capable of supplying a predetermined light modulating property over a long period of time regardless of an incident light condition. The light modulating material includes at least: a first liquid crystal layer which has at least a dichroic dye and changes from a colorless transparency state to a colored transparency state when voltage is applied thereto; and a second liquid crystal layer which changes from a colorless transparency state to a white light-scattering state when voltage is applied thereto. The second liquid crystal layer is provided closer to a surface of the light modulating material on which light is incident compared to the first liquid crystal layer.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 24, 2008
    Inventors: Naoyuki HAYASHI, Koji TAKAKU, Takashi KATO
  • Publication number: 20070218216
    Abstract: The invention provides a light modulating material having at least a liquid crystal layer disposed between a pair of transparent electrodes. The liquid crystal layer has at least: a liquid crystal composition having at least one host liquid crystal having negative dielectric anisotropy and at least one dichroic dye; and at least one polymer material. The liquid crystal composition is vertically aligned when no voltage is applied, and the transmissivity of incident light of the light modulating material when no voltage is applied is higher than the transmissivity of incident light of the light modulating material when voltage is applied. The invention further provides a liquid crystal device that includes the liquid crystal layer.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 20, 2007
    Inventors: Takashi Kato, Koji Takaku, Naoyuki Hayashi
  • Publication number: 20070195033
    Abstract: A driving method for a liquid crystal light modulating device uses a liquid crystal composition that contains liquid crystals that exhibit a scattered focal conic phase state and a transparent nematic phase state depending on the applied voltage. The driving method includes a nematic phase holding operation period and a scattered state holding operation period. In the scattered state holding operation period, the modulating device is applied with a specified voltage, of which the voltage waveform is different from that of a voltage applied in a transparent nematic phase holding operation period, in a focal conic phase state to maintain the scattered focal conic phase state.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 23, 2007
    Inventors: Naoyuki Hayashi, Takashi Kato