Patents by Inventor Toshiaki Nonaka

Toshiaki Nonaka 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: 10509319
    Abstract: The present invention relates to a photosensitive composition comprising at least one nanosized fluorescent material and polysiloxane, to a color conversion film, and to a use of the color conversion film in an optical device. The invention further relates to an optical device comprising the color conversion film and a method for preparing the color conversion film and the optical device.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 17, 2019
    Assignees: Merck Patent GmbH, AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Masayoshi Suzuki, Tadashi Kishimoto, Yuki Hirayama, Stephan Dertinger, Toshiaki Nonaka, Daishi Yokoyama
  • Publication number: 20190319131
    Abstract: [Problem] To provide a thin film transistor substrate comprising a protective film, which can impart high driving stability. [Means for Solution] A thin film transistor substrate comprising a thin film transistor and a protective film comprising a cured product of a siloxane composition, covering said thin film transistor, wherein the thin film transistor has a semiconductor layer made of an oxide semiconductor, and wherein the siloxane composition comprises polysiloxane, a fluorine-containing compound, and a solvent.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 17, 2019
    Inventors: Yukiharu URAOKA, Yasuaki ISHIKAWA, Naofumi YOSHIDA, Katsuto TANIGUCHI, Toshiaki NONAKA
  • Patent number: 10435513
    Abstract: An object of the present invention is to provide a composite of silicon oxide nanoparticles and a silsesquioxane polymer, from which a cured film having a low refractive index can be formed inexpensively. Provided are a method of producing a composite of silicon oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst, and a composite produced by the method.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 8, 2019
    Assignee: Ridgefield Acquisition
    Inventors: Naofumi Yoshida, Yuji Tashiro, Daishi Yokoyama, Toshiaki Nonaka
  • Patent number: 10409161
    Abstract: To provide a positive type photosensitive composition capable of forming a pattern of high resolution, of high heat resistance and of high transparency without emitting harmful volatile substances such as benzene, also capable of reducing pattern defects caused by development residues, by undissolved residues, or by reattached hardly-soluble trace left in pattern formation, and further capable of being excellent in storage stability. The present invention provides a positive type photosensitive siloxane composition comprising: a polysiloxane having a phenyl group, a diazonaphthoquinone derivative, a hydrate or solvate of a photo base-generator having a particular nitrogen-containing hetero-cyclic structure, and an organic solvent.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 10, 2019
    Assignee: AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Motoki Misumi, Daishi Yokoyama, Megumi Takahashi, Toshiaki Nonaka
  • Publication number: 20190204734
    Abstract: [Problem] To provide a material, which is a composition for a black matrix, and which is suitable for a display device structure having high luminance and suitable for producing a black matrix having high heat resistance and high light shielding properties. [Means for Solution] To use a composition for a black matrix comprising (I) a siloxane polymer having specific repeating unit(s), (II) a silanol condensation catalyst, (III) a black colorant, and (IV) a solvent.
    Type: Application
    Filed: August 16, 2017
    Publication date: July 4, 2019
    Inventors: Toshiaki NONAKA, Atsuko NOYA
  • Publication number: 20190064660
    Abstract: To provide a positive type photosensitive composition capable of forming a pattern of high resolution, of high heat resistance and of high transparency without emitting harmful volatile substances such as benzene, also capable of reducing pattern defects caused by development residues, by undissolved residues, or by reattached hardly-soluble trace left in pattern formation, and further capable of being excellent in storage stability. The present invention provides a positive type photosensitive siloxane composition comprising: a polysiloxane having a phenyl group, a diazonaphthoquinone derivative, a hydrate or solvate of a photo base-generator having a particular nitrogen-containing hetero-cyclic structure, and an organic solvent.
    Type: Application
    Filed: January 20, 2017
    Publication date: February 28, 2019
    Applicant: AZ Electronic Materials (Luxembourg) S.à r.l.
    Inventors: Motoki MISUMI, Daishi YOKOYAMA, Megumi TAKAHASHI, Toshiaki NONAKA
  • Publication number: 20180284613
    Abstract: The present invention relates to a photosensitive composition, and a color conversion film. The present invention further relates to a use of the photosensitive composition in a color conversion film fabrication process, and to a use of the color conversion film in an optical device. The invention further more relates to an optical device comprising the color conversion film and method for preparing the color conversion film and the optical device.
    Type: Application
    Filed: August 30, 2016
    Publication date: October 4, 2018
    Applicants: Merck Patent GmbH, AZ Electronic Materials (Luxembourg) S.A.R.L.
    Inventors: Yuki HIRAYAMA, Tadashi KISHIMOTO, Masayoshi SUZUKI, Daishi YOKOYAMA, Katsuto TANIGUCHI, Toshiaki NONAKA
  • Publication number: 20180179337
    Abstract: [Problem] An object of the present invention is to provide a composite of silicon oxide nanoparticles and a silsesquioxane polymer, from which a cured film having a low refractive index can be formed inexpensively. [Means for Solution] Provided are a method of producing a composite of silicon oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst, and a composite produced by the method.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Inventors: Naofumi YOSHIDA, Yuji TASHIRO, Daishi YOKOYAMA, Toshiaki NONAKA
  • Publication number: 20180046080
    Abstract: The present invention relates to a photosensitive composition comprising at least one nanosized fluorescent material and polysiloxane, to a color conversion film, and to a use of the color conversion film in an optical device. The invention further relates to an optical device comprising the color conversion film and a method for preparing the color conversion film and the optical device.
    Type: Application
    Filed: February 5, 2016
    Publication date: February 15, 2018
    Applicants: Merck Patent GmbH, AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Masayoshi SUZUKI, Tadashi KISHIMOTO, Yuki HIRAYAMA, Stephan DERTINGER, Toshiaki NONAKA, Daishi YOKOYAMA
  • Patent number: 9684240
    Abstract: To provide a negative-working photosensitive siloxane composition developable inorganically, and also to provide a cured film-manufacturing method employing that. The present invention provides a negative-working photosensitive siloxane composition comprising a polysiloxane, a silicon-containing compound having an ureido bond, a polymerization initiator, and a solvent. This composition is coat on a substrate, exposed to light, and developed, so that a cured film can be obtained without carrying out post-exposure baking.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 20, 2017
    Assignee: AZ Electronic Materials (Luxembourg) S.à.r.l.
    Inventors: Daishi Yokoyama, Atsuko Noya, Yuji Tashiro, Naofumi Yoshida, Yasuaki Tanaka, Takashi Fuke, Megumi Takahashi, Katsuto Taniguchi, Toshiaki Nonaka
  • Patent number: 9580567
    Abstract: A positive-type photosensitive siloxane composition which comprises (I) two or more polysiloxanes that differ in the rate of dissolution in aqueous tetramethylammonium hydroxide (TMAH) solutions, (II) a polysiloxane that gives a film which after prebaking has a rate of dissolution in 2.38 wt-% aqueous TMAH solution of 50-1,000 ?/sec and that has a group soluble in aqueous TMAH solution, other than silanol, (III) a diazonaphthoquinone derivative, and (IV) a solvent.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 28, 2017
    Assignee: AZ ELECTRONIC MATERIALS (LUXEMBOURG) S.A.R.L.
    Inventors: Toshiaki Nonaka, Daishi Tokoyama, Takashi Fuke, Yuji Tashiro
  • Patent number: 9505888
    Abstract: [Problem] An object of the present invention is to provide a composite of metal oxide nanoparticles and a silsesquioxane polymer, which can form a high-quality cured film wherein aggregation and the like of metal oxide do not occur during a curing process and the metal oxide is uniformly dispersed. [Means for Solution] Provided are: a method of producing a composite of metal oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal, or a silane monomer with metal oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in an aqueous solvent in the presence of a phase transfer catalyst; and a composite produced by the method.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: November 29, 2016
    Assignee: AZ ELECTRONIC MATERIALS (LUXEMBOURG) S.A.R.L.
    Inventors: Naofumi Yoshida, Yuji Tashiro, Daishi Yokoyama, Yasuaki Tanaka, Takashi Fuke, Megumi Takahashi, Toshiaki Nonaka
  • Patent number: 9388338
    Abstract: Liquid crystal mixture comprising one or several compounds of formula (I) wherein R1, R2, R3, R4, R5, R6, M1, M2, X, A, and m are defined herein.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: July 12, 2016
    Assignee: Merck Patent GmbH
    Inventors: Ji Li, Toshiaki Nonaka, Ayako Ogawa, Hans-Rolf Dübal, Barbara Hornung, Wolfgang Schmidt, Rainer Wingen
  • Publication number: 20160194451
    Abstract: [Problem] An object of the present invention is to provide a composite of silicon oxide nanoparticles and a silsesquioxane polymer, from which a cured film having a low refractive index can be formed inexpensively. [Means for Solution] Provided are a method of producing a composite of silicon oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst, and a composite produced by the method.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 7, 2016
    Applicant: AZ ELECTRONIC MATERIALS (LUXEMBOURG) S.A.R.L.
    Inventors: Naofumi YOSHIDA, Yuji TASHIRO, Daishi YOKOYAMA, Toshiaki NONAKA
  • Patent number: 9260662
    Abstract: Liquid crystal mixture comprising one or several compounds of formula (I) wherein R1, R2, R3, R4, R5, R6, M1, M2, X, A, and m are defined herein.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: February 16, 2016
    Assignee: Merck Patent GmbH
    Inventors: Ji Li, Toshiaki Nonaka, Ayako Ogawa, Hans-Rolf Dübal, Barbara Hornung, Wolfgang Schmidt, Rainer Wingen
  • Publication number: 20150331319
    Abstract: [Object] To provide a negative-working photosensitive siloxane composition developable inorganically, and also to provide a cured film-manufacturing method employing that. [Means] The present invention provides a negative-working photosensitive siloxane composition comprising a polysiloxane, a silicon-containing compound having an ureido bond, a polymerization initiator, and a solvent. This composition is coat on a substrate, exposed to light, and developed, so that a cured film can be obtained without carrying out post-exposure baking.
    Type: Application
    Filed: April 5, 2013
    Publication date: November 19, 2015
    Inventors: Daishi Yokoyama, Atsuko Noya, Yuji Tashiro, Naofumi Yoshida, Yasuaki Tanaka, Takashi Fuke, Megumi Takahashi, Katsuto Taniguchi, Toshiaki Nonaka
  • Publication number: 20150329679
    Abstract: [Problem] An object of the present invention is to provide a composite of metal oxide nanoparticles and a silsesquioxane polymer, which can form a high-quality cured film wherein aggregation and the like of metal oxide do not occur during a curing process and the metal oxide is uniformly dispersed. [Means for Solution] Provided are: a method of producing a composite of metal oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal, or a silane monomer with metal oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in an aqueous solvent in the presence of a phase transfer catalyst; and a composite produced by the method.
    Type: Application
    Filed: December 19, 2013
    Publication date: November 19, 2015
    Inventors: Naofumi YOSHIDA, Yuji TASHIRO, Daishi YOKOYAMA, Yasuaki TANAKA, Takashi FUKE, Megumi TAKAHASHI, Toshiaki NONAKA
  • Patent number: 9164386
    Abstract: [Object] To provide a negative-working photosensitive siloxane composition developable inorganically, and also to provide a cured film-manufacturing method employing that. [Means] The present invention provides a negative-working photosensitive siloxane composition comprising a polysiloxane, a silicon-containing compound having a pKa of 2.0 to 15.7, a photo-polymerization initiator, and a solvent. This composition is coat on a substrate, exposed to light, developed with an inorganic developer, and heated, so that a cured film can be obtained.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: October 20, 2015
    Assignee: AZ ELECTRONIC MATERIALS (LUXEMBOURG) S.A.R.L.
    Inventors: Daishi Yokoyama, Atsuko Noya, Yuji Tashiro, Naofumi Yoshida, Yasuaki Tanaka, Takashi Fuke, Megumi Takahashi, Katsuto Taniguchi, Toshiaki Nonaka
  • Publication number: 20150291749
    Abstract: A positive-type photosensitive siloxane composition which comprises (I) two or more polysiloxanes that differ in the rate of dissolution in aqueous tetramethylammonium hydroxide (TMAH) solutions, (II) a polysiloxane that gives a film which after prebaking has a rate of dissolution in 2.38 wt-% aqueous TMAH solution of 50-1,000 ?/sec and that has a group soluble in aqueous TMAH solution, other than silanol, (III) a diazonaphthoquinone derivative, and (IV) a solvent.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 15, 2015
    Inventors: Toshiaki Nonaka, Daishi Tokoyama, Takashi Fuke, Yuji Tashiro
  • Patent number: 9091920
    Abstract: [Object] To provide a photosensitive siloxane resin composition excellent in alkali-solubility and in sensitivity, and also to provide a pattern-formation method employing that. [Means] The present invention provides a photosensitive siloxane resin composition comprising: a siloxane resin having silanol groups or alkoxysilyl groups, a crown ether, a photosensitive material, and an organic solvent. This photosensitive composition is cast on a substrate, subjected to imagewise exposure, treated with an alkali aqueous solution, and cured to form a pattern.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: July 28, 2015
    Assignee: Merck Patent GmbH
    Inventors: Takashi Sekito, Daishi Yokoyama, Takashi Fuke, Yuki Tashiro, Toshiaki Nonaka, Yasuaki Tanaka