Patents by Inventor Katsuto Taniguchi

Katsuto Taniguchi 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: 11965049
    Abstract: Photosensitive compositions containing nanosized light emitting materials and (meth)acrylic polymer are suitable for use in a variety of optical applications, for example the preparation of quantum material doped photoresist films, especially for optical devices. Optical films can be prepared be by: a) providing the photosensitive composition onto a substrate, and b) polymerizing the photosensitive composition by exposing the photosensitive composition to radiation.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 23, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Tadashi Kishimoto, Yuko Arai, Masayoshi Suzuki, Daishi Yokoyama, Katsuto Taniguchi
  • 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: 11860537
    Abstract: [Object] To provide a positive type photosensitive composition capable of forming a cured film having high transparency [Means] The present invention provides a positive type photosensitive siloxane composition comprising: a polysiloxane, a diazonaphthoquinone derivative, an additive having a >N—C(?O)— or >N—C(?S)— structure and the capability of interacting with the polysiloxane, and a solvent. The polysiloxane and the additive interact with each other before exposure, but they lose the interaction after exposure.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 2, 2024
    Assignee: Merck Patent GmbH
    Inventors: Naofumi Yoshida, Megumi Takahashi, Katsuto Taniguchi
  • 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
  • Patent number: 11630390
    Abstract: To provide a negative type photosensitive composition curable at a low temperature and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability, and also to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: an alkali-soluble resin, a compound having two or more (meth)acryloyloxy groups, a polysiloxane, a polymerization initiator, and a solvent. The alkali-soluble resin is a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 18, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Motoki Misumi, Daishi Yokoyama, Katsuto Taniguchi, Masahiro Kuzawa
  • Patent number: 11506978
    Abstract: [Object] To provide a negative type photosensitive composition developable with a low concentration alkali developer and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability; and further to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: (I) an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit, (II) a polysiloxane, (III) a compound having two or more (meth)acryloyloxy groups, (IV) (i) a silicone derivative having a particular structure and/or (ii) a compound having two or more epoxy groups, (V) a polymerization initiator, and (VI) a solvent.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 22, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Motoki Misumi, Daishi Yokoyama, Katsuto Taniguchi, Masahiro Kuzawa
  • Patent number: 11392032
    Abstract: [Object] To provide a positive type photosensitive composition capable of forming a cured film having high transparency [Means] The present invention provides a positive type photosensitive siloxane composition comprising: a polysiloxane, a diazonaphthoquinone derivative, an additive having a quaternary ammonium structure and the capability of interacting with the polysiloxane, and a solvent. The polysiloxane and the additive interact with each other before exposure, but they lose the interaction after exposure.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 19, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Naofumi Yoshida, Megumi Takahashi, Katsuto Taniguchi
  • 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: 20210317323
    Abstract: The present invention relates to a composition and to a method of manufacturing a composition.
    Type: Application
    Filed: July 31, 2019
    Publication date: October 14, 2021
    Applicant: Merck Patent GmbH
    Inventors: Tadashi KISHIMOTO, Yuko ARAI, Masayoshi SUZUKI, Daishi YOKOYAMA, Katsuto TANIGUCHI
  • Publication number: 20210208503
    Abstract: To provide a negative type photosensitive composition curable at a low temperature and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability, and also to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: an alkali-soluble resin, a compound having two or more (meth)acryloyloxy groups, a polysiloxane, a polymerization initiator, and a solvent. The alkali-soluble resin is a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 8, 2021
    Inventors: Motoki MISUMI, Daishi YOKOYAMA, Katsuto TANIGUCHI, Masahiro KUZAWA
  • 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
  • Publication number: 20210116811
    Abstract: [Object] To provide a positive type photosensitive composition capable of forming a cured film having high transparency [Means] The present invention provides a positive type photosensitive siloxane composition comprising: a polysiloxane, a diazonaphthoquinone derivative, an additive having a >N—C(?O)— or >N—C(?S)— structure and the capability of interacting with the polysiloxane, and a solvent. The polysiloxane and the additive interact with each other before exposure, but they lose the interaction after exposure.
    Type: Application
    Filed: April 25, 2018
    Publication date: April 22, 2021
    Inventors: Naofumi YOSHIDA, Megumi TAKAHASHI, Katsuto TANIGUCHI
  • 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: 20200301277
    Abstract: [Object] To provide a negative type photosensitive composition developable with a low concentration alkali developer and capable of forming a cured film excellent in transparency, in chemical resistance and in environmental durability; and further to provide a pattern-formation method employing the composition. [Means] The present invention provides a negative type photosensitive composition comprising: (I) an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit, (II) a polysiloxane, (III) a compound having two or more (meth)acryloyloxy groups, (IV) (i) a silicone derivative having a particular structure and/or (ii) a compound having two or more epoxy groups, (V) a polymerization initiator, and (VI) a solvent.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 24, 2020
    Inventors: MOTOKI MISUMI, Daishi YOKOYAMA, Katsuto TANIGUCHI, Masahiro KUZAWA
  • 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
  • Publication number: 20200201179
    Abstract: [Object] To provide a composition capable of forming a cured film having low permittivity and excellence in chemical resistance, in heat resistance and in resolution; and further to provide a production process employing the composition. [Means] The present invention provides a composition comprising: an alkali-soluble resin, namely, a polymer comprising a carboxyl-containing polymerization unit and an alkoxysilyl-containing polymerization unit; a polysiloxane; a diazonaphthoquinone derivative a compound generating acid or base when exposed to heat or light; and a solvent.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: MEGUMI TAKAHASHI, Daishi Yokoyama, Naofumi Yoshida, Katsuto Taniguchi, Masahiro Kuzawa