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: 11899365
    Abstract: To provide a photosensitive siloxane composition capable of forming a pattern having a desired taper angle and a desired linewidth. [Means] The present invention provides a photosensitive siloxane composition comprising: a polysiloxane having a structure represented by the following formula (ia?): (L is an alkylene or phenylene), a photoactive agent, and a solvent.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 13, 2024
    Assignee: Merck Patent GmbH
    Inventors: Naofumi Yoshida, Takashi Fuke, Megumi Takahashi, Katsuto Taniguchi, Toshiaki Nonaka
  • Patent number: 11866553
    Abstract: [Problem] To provide a polysiloxanecapable of forming a cured film of a thick film with high heat resistance, a composition comprising the polysiloxane, and a method of manufacturing a cured film using the composition. [Means for Solution] To provide a polysiloxane comprising a repeating unit represented by the following formula (Ib), wherein R2 is each independently hydrogen, alkyl, aryl, alkenyl, and the like, a composition comprising the polysiloxane, and a method of manufacturing a cured film using the composition.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 9, 2024
    Assignee: Merck Patent GmbH
    Inventors: Naofumi Yoshida, Megumi Takahashi, Seishi Shibayama, Katsuto Taniguchi, Masanobu Hayashi, Toshiaki Nonaka
  • Patent number: 11718082
    Abstract: A method of manufacturing a fine pattern using the following steps of: (1) coating a resist composition containing a novolak resin having an alkali dissolution rate of 100 to 3,000 ? on a substrate to form a resist composition layer; (2) subjecting said resist composition layer to exposure; (3) developing said resist composition layer to form a resist pattern; (4) subjecting said resist pattern to flood exposure; (5) coating a fine pattern forming composition on the surface of said resist pattern to form a fine pattern forming composition layer; (6) heating said resist pattern and said fine pattern forming composition layer to cure the regions of said fine pattern forming composition layer in the vicinity of said resist pattern and to form an insolubilized layer; and (7) removing uncured regions of said fine pattern forming composition layer.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 8, 2023
    Assignee: Merck Patent GmbH
    Inventors: Hirokazu Ikeda, Toshiaki Nonaka, Yoshisuke Toyama, Takahide Suzuki
  • Patent number: 11644754
    Abstract: To provide a photosensitive composition capable of easily forming a cured film having a low refractive index. The present invention provides a photosensitive siloxane composition comprising: a polysiloxane, a photosensitive agent, hollow silica particles, and a solvent. The hollow silica particles contain voids inside, and have outer surfaces subjected to hydrophobic treatment.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 9, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Naofumi Yoshida, Megumi Takahashi, Katsuto Taniguchi, Toshiaki Nonaka
  • Publication number: 20220267639
    Abstract: [Problem] To provide a gate insulating film forming composition comprising a polysiloxane, which forms a gate insulating film having excellent characteristics such as high dielectric constant and high mobility. [Means for Solution] The gate insulating film forming composition comprises (I) a polysiloxane, (II) barium titanate, and (III) a solvent, wherein the content of the barium titanate is 30 to 80 mass % based on the total mass of the polysiloxane and the barium titanate.
    Type: Application
    Filed: June 25, 2020
    Publication date: August 25, 2022
    Inventors: Yukiharu URAOKA, Juan Paolo Soria BERMUNDO, Naofumi YOSHIDA, Megumi YANO, Atsuko NOYA, Toshiaki NONAKA
  • Publication number: 20220177651
    Abstract: The present invention relates to novel siloxane oligomer and polymers and crosslinkable compositions, which may be used for the preparation of dielectric materials having excellent barrier, passivation and/or planarization properties. There is also provided a monomer composition from which the siloxane oligomers or polymers may be obtained and a method for preparing said siloxane oligomers or polymers. Beyond that, the present invention relates to a manufacturing method for preparing a microelectronic structure, wherein a crosslinkable composition is applied to a surface of a substrate and then cured, and to an electronic device comprising a microelectronic structure which is obtained by said manufacturing method.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 9, 2022
    Applicant: Merck Patent GmbH
    Inventors: Karsten KOPPE, Jens EICHHORN, Ben JEFFERY, Alex DAVIS, William MITCHELL, Pawel MISKIEWICZ, Toshiaki NONAKA
  • Patent number: 11269255
    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: Grant
    Filed: March 27, 2020
    Date of Patent: March 8, 2022
    Assignees: 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: 20220025127
    Abstract: [Problem] To provide a novel polysiloxane compound capable of forming a cured film that is capable of improving adhesion between a substrate and the cured film when the cured film is formed. [Means for Solution] To provide an acrylic polymerized polysiloxane in which a specific structure in the molecule is bonded via an acrylic polymerization unit, and a composition comprising the same.
    Type: Application
    Filed: November 27, 2019
    Publication date: January 27, 2022
    Inventors: Naofumi YOSHIDA, Toshiaki NONAKA, Katsuto TANIGUCHI
  • Publication number: 20210191263
    Abstract: [Problem] The present invention provides a method of manufacturing a resist pattern of effectively below the resolution limit, which is suitable for use in the liquid crystal display device manufacturing field. In particular, the present invention provides a method of accurately manufacturing a high-defined pattern of below the resolution limit while maintaining or improving a pattern shape having a taper shape.
    Type: Application
    Filed: October 17, 2018
    Publication date: June 24, 2021
    Inventors: Hirokazu IKEDA, Toshiaki NONAKA, Yoshisuke TOYAMA, Takahide SUZUKI
  • Publication number: 20210187930
    Abstract: [Problem] The present invention provides a method of manufacturing a resist pattern of effectively below the resolution limit, which is suitable for use in the liquid crystal display device manufacturing field. In particular the present invention provides a method of accurately manufacturing a high-defined pattern of below the resolution limit while maintaining a pattern shape having a taper shape.
    Type: Application
    Filed: October 17, 2018
    Publication date: June 24, 2021
    Inventors: Hirokazu IKEDA, Toshiaki NONAKA, Yoshisuke TOYAMA, Takahide SUZUKI
  • Publication number: 20210171718
    Abstract: [Problem] To provide a polysiloxanecapable of forming a cured film of a thick film with high heat resistance, a composition comprising the polysiloxane, and a method of manufacturing a cured film using the composition. [Means for Solution] To provide a polysiloxane comprising a repeating unit represented by the following formula (Ib), wherein R2 is each independently hydrogen, alkyl, aryl, alkenyl, and the like, a composition comprising the polysiloxane, and a method of manufacturing a cured film using the composition.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 10, 2021
    Inventors: Naofumi YOSHIDA, Megumi TAKAHASHI, Seishi SHIBAYAMA, Katsuto TANIGUCHI, Masanobu HAYASHI, Toshiaki NONAKA
  • Patent number: 11028270
    Abstract: [Problem] To provide a composition for a black matrix which is a material suitable for manufacturing a black matrix, which is suitable for a high luminance display device structure and has high heat resistance and high light-shielding properties. [Means for Solution] The present invention uses a composition for a black matrix comprising: (I) a black colorant containing carbon black having a volume average particle diameter of 1 to 300 nm; (II) a siloxane polymer to be obtained by hydrolyzing and condensing a silane compound represented by a prescribed formula in the presence of an acidic or basic catalyst; (III) surface modified silica fine particles; (IV) a thermal base generator; and (V) a solvent.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 8, 2021
    Assignee: Merck Patent GmbH
    Inventors: Hirohiko Nishiki, Tohru Okabe, Izumi Ishida, Shogo Murashige, Atsuko Noya, Toshiaki Nonaka, Naofumi Yoshida
  • Publication number: 20210055657
    Abstract: To provide a photosensitive siloxane composition capable of forming a pattern having a desired taper angle and a desired linewidth. [Means] The present invention provides a photosensitive siloxane composition comprising: a polysiloxane having a structure represented by the following formula (ia?): (L is an alkylene or phenylene), a photoactive agent, and a solvent.
    Type: Application
    Filed: December 27, 2018
    Publication date: February 25, 2021
    Inventors: Naofumi YOSHIDA, Takashi FUKE, Megumi TAKAHASHI, Katsuto TANIGUCHI, Toshiaki NONAKA
  • Patent number: 10916661
    Abstract: The present invention relates to providing a thin film transistor substrate containing a protective film, which can impart high driving stability. The thin film transistor substrate contains a thin film transistor and a protective film containing a cured product of a siloxane composition which covers the thin film transistor, wherein the thin film transistor has a semiconductor layer made of an oxide semiconductor, and wherein the siloxane composition contains polysiloxane, a fluorine-containing compound, and a solvent.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: February 9, 2021
    Assignee: Merck Patent GmbH
    Inventors: Yukiharu Uraoka, Yasuaki Ishikawa, Naofumi Yoshida, Katsuto Taniguchi, Toshiaki Nonaka
  • Publication number: 20200319557
    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: March 27, 2020
    Publication date: October 8, 2020
    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: 20200277494
    Abstract: [Problem] To provide a composition for a black matrix which is a material suitable for manufacturing a black matrix, which is suitable for a high luminance display device structure and has high heat resistance and high light-shielding properties. [Means for Solution] The present invention uses a composition for a black matrix comprising: (I) a black colorant containing carbon black having a volume average particle diameter of 1 to 300 nm; (II) a siloxane polymer to be obtained by hydrolyzing and condensing a silane compound represented by a prescribed formula in the presence of an acidic or basic catalyst; (III) surface modified silica fine particles; (IV) a thermal base generator; and (V) a solvent.
    Type: Application
    Filed: December 7, 2017
    Publication date: September 3, 2020
    Inventors: Hirohiko NISHIKI, TOHRU OKABE, IZUMI ISHIDA, SHOGO MURASHIGE, Atsuko NOYA, Toshiaki NONAKA, Naofumi YOSHIDA
  • Patent number: 10719013
    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: Grant
    Filed: August 16, 2017
    Date of Patent: July 21, 2020
    Assignee: AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Toshiaki Nonaka, Atsuko Noya
  • Publication number: 20200225583
    Abstract: To provide a positive type photosensitive composition capable of forming a cured film of a thick film with high heat resistance. A positive type photosensitive siloxane composition comprising a polysiloxane having a specific structure, a silanol condensation catalyst, a diazonaphtho-quinone derivative and a solvent.
    Type: Application
    Filed: September 24, 2018
    Publication date: July 16, 2020
    Inventors: Naofumi YOSHIDA, Megumi TAKAHASHI, Seishi SHIBAYAMA, Katsuto TANIGUCHI, Toshiaki NONAKA
  • Patent number: 10678134
    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: Grant
    Filed: August 30, 2016
    Date of Patent: June 9, 2020
    Assignees: 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: 20200089117
    Abstract: To provide a photosensitive composition capable of easily forming a cured film having a low refractive index. The present invention provides a photosensitive siloxane composition comprising: a polysiloxane, a photosensitive agent, hollow silica particles, and a solvent. The hollow silica particles contain voids inside, and have outer surfaces subjected to hydrophobic treatment.
    Type: Application
    Filed: June 4, 2018
    Publication date: March 19, 2020
    Inventors: Naofumi YOSHIDA, Megumi TAKAHASHI, Katsuto TANIGUCHI, Toshiaki NONAKA