Patents by Inventor Yu Naito

Yu 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: 20150369960
    Abstract: An optical film including cellulose acylate and a compound represented by General Formula (I) described below, a polarizing plate, and a liquid crystal display device; R1 and R3 represent hydrogen atoms, alkyl groups having 1 to 20 carbon atoms, cycloalkyl groups having 3 to 20 carbon atoms, alkenyl groups having 2 to 20 carbon atoms, or aromatic groups having 6 to 20 carbon atoms. R5 represents a hydrogen atom, an unsubstituted alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an aralkyl group represented by -L5-Ar5 (L5 represents an alkylene group having 1 to 20 carbon atoms and Ar5 represents an aromatic group having 6 to 20 carbon atoms). Here, the total of ring structures present in R1, R3, and R5 is one or two.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Aiko YOSHIDA, Yutaka NOZOE, Yoshinori KANAZAWA, Yasukazu KUWAYAMA, Yu NAITO
  • Patent number: 9217814
    Abstract: A cellulose acylate film containing at least one compound represented by the following Formula (I) or (II), and cellulose acylate, a polarizing plate using the same and a liquid crystal display device using the same, wherein in Formula (I), R1 represents an alkyl group; R2 and R3 each represent a hydrogen atom, an alkyl or an aryl group; R4 represents an alkyl group; Ar1 represents an aromatic group; m and n are integers; provided that when n is 1, Ar1 represents an aromatic group; and in Formula (II), R11 to R14 each represent a hydrogen atom, or an alkyl group; R11 and R12, and/or, R13 and R14 may form a ring; R15 and R17 each represent an alkyl group; and R16 and R18 each represent a hydrogen atom or alkyl group; Ar represents an arylene group; and 1, m1 and n1 are integers.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: December 22, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Yutaka Nozoe, Yu Naito
  • Publication number: 20150323824
    Abstract: A film of 15 to 45 ?m thick containing a cellulose acylate and an aromatic ester oligomer having a repeating unit derived from a dicarboxylic acid and a repeating unit derived from a diol, in which the repeating unit derived from a dicarboxylic acid has a ratio m/n of from 0/10 to 3/7, m and n represent a molar proportion of a repeating unit derived from an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid, respectively, and the film satisfies |Rth(590)|?50 nm; has a good appearance and is free of deterioration in display performance when the film with a thin thickness is produced in the form of a roll, achieves a high pencil hardness by imparting a high Knoop hardness to the film, even with a hard coat layer provided, and is free of display unevenness on installing the film in a liquid crystal display device.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Yoshiaki HISAKADO, Masato NAGURA, Yu NAITO, Rikio INOUE, Yutaka ADEGAWA
  • Publication number: 20150252178
    Abstract: A cellulose acylate film, containing: at least two or more of chelating agents having different pKa values from one another, wherein the chelating agents comprise: a chelating agent A having at least one functional group whose acid dissociation constant pKa, measured at 25° C. in a mixed solvent having a mixing ratio of tetrahydrofuran 60 ml/water 40 ml, is 6 or less; and a chelating agent B having at least one functional group of a conjugate acid whose pKa, measured at the same condition, is 7 or more; and a cellulose acylate, and wherein the number of bright spots of the cellulose acylate film is equal to or less than 500/cm2; a polarizing plate protective film, a polarizing plate and a liquid crystal display using the same.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 10, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Nobutaka FUKAGAWA, Yu NAITO, Mayumi NOJIRI, Hiroyuki HAGIO, Aiko YOSHIDA, Hideyuki NISHIKAWA
  • Publication number: 20150253479
    Abstract: A polarizing plate includes at least: a polarizer layer containing a polyvinyl alcohol-based film dyed with iodine; and one or more other layers except for the polarizer layer, in which the polarizer layer contains a compound which has polyiodide ion I5? reduction capability in iodide compound- and iodine-containing solutions, and at least one of the one or more other layers contain a compound which has polyiodide ion I5? formation capability in an iodide compound-containing solution.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Nobutaka FUKAGAWA, Yu NAITO, Naoya SHIMOJU, Aiko YOSHIDA
  • Publication number: 20150253621
    Abstract: An optical film, containing a cellulose acylate, and at least one compound represented by any of formulas (I) to (III): wherein, in formulas (I) to (III), R1 and R2 each independently represent a halogen atom, an alkyl, cycloalkyl, alkenyl, aryl, hydroxy, hydroxyamino, amino, alkylamino, arylamino, alkoxy, aryloxy, alkylthio, or arylthio group (however, R1 and R2 do not represent an amino, alkylamino, or arylamino group at the same time); R3 to R6 each independently represent a hydrogen atom, an alkyl, cycloalkyl, alkenyl, aryl, acyl, alkyl- or aryl-sulfonyl, alkyl- or aryl-sulfinyl, carbamoyl, sulfamoyl, alkoxycarbonyl, or aryloxycarbonyl group; R7 represents an alkyl, cycloalkyl, alkenyl, aryl, alkylamino, arylamino, alkoxy, aryloxy, or heterocyclic group; R8 represents an alkyl, cycloalkyl, alkenyl, aryl, or heterocyclic group; and R1 to R8 each may be further substituted with a substituent; and a polarizing plate and a liquid crystal display.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 10, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Yu NAITO, Nobutaka FUKAGAWA, Aiko YOSHIDA, Hideyuki NISHIKAWA, Masaki NORO
  • Publication number: 20150253685
    Abstract: A white toner has a first temperature range not less than 25° C. in which 60° glossiness is 10 or less between a fixable minimum temperature and a fixable maximum temperature thereof. The white toner has a second temperature range not less than 25° C. in which 60° glossiness is from 30 to 60 therebetween.
    Type: Application
    Filed: February 18, 2015
    Publication date: September 10, 2015
    Inventors: Kazumi SUZUKI, Hisashi NAKAJIMA, Masashi NAGAYAMA, Saori YAMADA, Yoshitaka YAMAUCHI, Yu NAITO
  • Publication number: 20150248074
    Abstract: A red toner for developing an electrostatic latent image includes a colorant and a binder resin. An image produced by the red toner has a hue angle (H) of from 36 to 50° in L*a*b* color system, a lightness (L*) of from 47 to 55, and a chroma (c*) of from 94 to 108.
    Type: Application
    Filed: February 18, 2015
    Publication date: September 3, 2015
    Inventors: Kazumi Suzuki, Hisashi Nakajima, Masashi Nagayama, Saori Yamada, Yoshitaka Yamauchi, Yu Naito
  • Patent number: 9090824
    Abstract: A polarizing plate includes two protective films and a polarizer provided between the two protective films, and the polarizer has a thickness of 3 ?m to 18 ?m, at least one of the protective films has a thickness of 3 ?m to 40 ?m and contains at least one resin and a compound in an amount of 1 part by mass to 20 parts by mass based on 100 parts by mass of the resin, the compound having at least one hydrogen-donating group capable of forming a hydrogen bond and a ratio of molecular weight to number of aromatic rings of 300 or less, and the polarizing plate has a thickness of 15 ?m to 70 ?m.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: July 28, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Yu Naito, Akio Tamura, Yutaka Nozoe, Hiroshi Inada
  • Publication number: 20150185368
    Abstract: An optical film containing a cellulose acylate, and a compound represented by formula (I); a polarizing plate and a liquid crystal display device using the optical film; and a compound represented by formula (I): wherein R1a and R1a each independently represent a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkenyl group, an aryl group, or a heterocyclic group; R5a represents a halogen atom, a cyano group, or a substituent, via a heteroatom or the carbon atom, which has a specific unsaturated moiety in an a-position; R5b represents a substituent; and each group of R1a, R3a and R5b may be substituted with a substituent.
    Type: Application
    Filed: December 15, 2014
    Publication date: July 2, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Hisato NAGASE, Hiroyuki HAGIO, Hiroyuki ISHIKAWA, Naoya SHIMOJU, Aiko YOSHIDA, Yu NAITO
  • Patent number: 9040129
    Abstract: A protective film to a polarizer including a cellulose acylate and satisfying the following requirement (1) or (2): (1): The surface of the film has a pH of from 3.0 to 4.5. (2): The surface of the film has a pH of more than 4.5 and at most 6.0, and the film has a moisture permeability of at least 2800 g/m2·day.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 26, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Yu Naito, Masato Nagura, Yoshio Ishii
  • Patent number: 8974875
    Abstract: A cellulose acylate film containing a cellulose acylate and a specific polymer, the specific polymer containing a repeating unit derived from a monomer represented by formula (1): wherein R1 represents a hydrogen atom or an aliphatic group having 1 to 4 carbon atoms; R2 represents a substituent; (A) represents an atomic group necessary to form a 5- or 6-membered ring; and n represents an integer of 0 to 4.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Akio Tamura, Yu Naito
  • Publication number: 20150055062
    Abstract: An optical film, has a film thickness of 15 ?m to 45 ?m, Rth (440 W, 30% RH) and “Rth (440 W, 30% RH)?Rth (440 W, 80% RH)” of the optical film satisfy Expression (1) ?20 nm?Rth (440 W, 30% RH)?5 nm and Expression (2) 0 nm?Rth (440 W, 30% RH)?RH (440 W, 80% RH)?18 nm, here, in Expressions (1) and (2), Rth (440 W, 30% RH) represents a retardation value in a film thickness direction at a wavelength of 440 nm measured at 25° C. and at a relative humidity of 30% and Rth (440 W, 80% RH) represents a retardation value in the film thickness direction at a wavelength of 440 nm measured at 25° C. and at a relative humidity of 80%; a polarizer and liquid crystal display device.
    Type: Application
    Filed: November 10, 2014
    Publication date: February 26, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Yoshiaki HISAKADO, Masato NAGURA, Jun NOGUCHI, Kazuya HISANAGA, Nobutaka FUKAGAWA, Yu NAITO, Hiromichi FURUKAWA
  • Publication number: 20150030819
    Abstract: Toner contains a binder resin, a releasing agent, and a tri- or higher metal salt, wherein the toner has a weight average molecular weight (Mw) of from 7,000 to 10,000, a ratio of the weight average molecular weight (Mw) to a number average molecular weight (Mn) of 5 or less, and an acid value of from 6 mgKOH/g to 12 mgKOH/g, wherein the binder resin is a polyester resin, wherein the releasing agent is a monoester wax.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Yu Naito, Kazumi Suzuki, Yoshitaka Yamauchi, Masashi Nagayama, Hisashi Nakajima, Saori Yamada
  • Publication number: 20140242300
    Abstract: Provided is a polarizer durable against high-temperature and high-humidity conditions, small in changes in the single plate transmittance, and a liquid crystal display device. A polarizer comprising a polyvinyl alcohol-based resin, a dichroic colorant, and a compound, etc. represented by the formula (1) below, the content of the compound represented by the formula (1) being 0.01 to 30 parts by mass relative to 100 parts by mass of the polyvinyl alcohol based resin. In the formula (1), each of Ri and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, 02-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU
  • Publication number: 20140242302
    Abstract: Provided is a polarizing plate having improved single plate transmittance under high-temperature and high-humidity conditions, and a liquid crystal display device using the same. A laminate comprising a polarizer, and an adhesive layer adjoining to at least one surface of the polarizer, the adhesive layer containing a resin and a compound, etc. represented by the formula (1) below. In the formula (1), each of R1 and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, C2-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU
  • Publication number: 20140199502
    Abstract: To provide a cellulose acylate film having low moisture permeability and low haze, a polarizing plate, and a liquid crystal display device using the same.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 17, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Akio TAMURA, Yu NAITO, Yutaka NOZOE
  • Publication number: 20140160404
    Abstract: A display device for outdoor use has a display unit, and the display unit includes a polarizing plate having a light absorbing layer and a polarizer layer on a viewing side surface, the light absorbing layer includes a first light absorbing agent having at least one absorption peak in a wavelength range of from 280 to less than 360 nm and a second light absorbing agent having at least one absorption peak in a wavelength range of from 360 to 400 nm, and the light absorbing layer is disposed closer to the viewing side than the polarizer layer.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 12, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Naoyoshi YAMADA, Yu NAITO, Nobutaka FUKAGAWA, Aiko YOSHIDA, Yukie WATANABE
  • Publication number: 20140104546
    Abstract: A cellulose acylate film containing a cellulose acylate and a specific polymer, the specific polymer containing a repeating unit derived from a monomer represented by formula (1): wherein R1 represents a hydrogen atom or an aliphatic group having 1 to 4 carbon atoms; R2 represents a substituent; (A) represents an atomic group necessary to form a 5- or 6-membered ring; and n represents an integer of 0 to 4
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Yutaka NOZOE, Akio TAMURA, Yu NAITO
  • Publication number: 20140085575
    Abstract: A cellulose acylate film containing at least one compound represented by the following Formula (I) or (II), and cellulose acylate, a polarizing plate using the same and a liquid crystal display device using the same, wherein in Formula (I), R1 represents an alkyl group; R2 and R3 each represent a hydrogen atom, an alkyl or an aryl group; R4 represents an alkyl group; Ar1 represents an aromatic group; m and n are integers; provided that when n is 1, Ar1 represents an aromatic group; and in Formula (II), R11 to R14 each represent a hydrogen atom, or an alkyl group; R11 and R12, and/or, R13 and R14 may form a ring; R15 and R17 each represent an alkyl group; and R16 and R18 each represent a hydrogen atom or alkyl group; Ar represents an arylene group; and l, m1 and n1 are integers.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 27, 2014
    Applicant: Fujifilm Corporation
    Inventors: Yutaka NOZOE, Yu NAITO