Patents by Inventor Yuki NISHIJIMA

Yuki NISHIJIMA 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: 11814454
    Abstract: To provide a curable composition that is readily modeled with low viscosity and excellent curing capability in modeling by stereolithography, and provides a cured article excellent in toughness and water resistance, and a resin composition for stereolithography prepared therefrom. To provide a resin composition for stereolithography that is favorable particularly for a dental mouthpiece and a denture base material. A curable composition containing 79.0 to 99.0% by mass of a polymerizable monomer (a), 0.1 to 10.0% by mass of a photopolymerization initiator (b), and 0.01 to 20.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 14, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Kenji Suzuki, Yuki Nishijima, Daiki Noguchi, Takashi Fukumoto
  • Publication number: 20230287199
    Abstract: A composition containing a compound (A) containing a structure represented by the following general formula (I) as a first component, at least one of an antioxidant (B1) different from a phosphorus-based antioxidant and a light stabilizer (B2) as a second component, and a resin component (C) as a third component: wherein R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group; and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group.
    Type: Application
    Filed: July 30, 2021
    Publication date: September 14, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Yuki NISHIJIMA, Daiki NOGUCHI, Takashi FUKUMOTO
  • Publication number: 20230073744
    Abstract: A curable composition includes, per 100 parts by mass of a curable compound, 0.1 to 10.0 parts by mass of a compound (A) including a structure represented by the following general formula (I), and 0.01 to 10.0 parts by mass of a base (B): where X represents a chalcogen atom, R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group, and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 9, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Yuki NISHIJIMA, Daiki NOGUCHI, Takashi FUKUMOTO
  • Publication number: 20230060171
    Abstract: To provide a metal particle composition having excellent oxidation resistance, which does not require a transition metal catalyst and can be applied to existing metal particles, a method for producing the metal particle composition, and a paste. The metal particle composition contains, with respect to 100 parts by mass of metal particles, 0.1 to 5 parts by mass of a compound (A) having a structure represented by the following general formula (I): in which R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group, an alkenyl group having 2 to 6 carbon atoms, an alkenyloxy group, an aryl group, or an aralkyl group.
    Type: Application
    Filed: June 30, 2021
    Publication date: March 2, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Yuki NISHIJIMA, Daiki NOGUCHI, Takashi FUKUMOTO
  • Publication number: 20220242978
    Abstract: To provide a curable composition that is readily modeled with low viscosity and excellent curing capability in modeling by stereolithography, and provides a cured article excellent in toughness and water resistance, and a resin composition for stereolithography prepared therefrom. To provide a resin composition for stereolithography that is favorable particularly for a dental mouthpiece and a denture base material. A curable composition containing 79.0 to 99.0% by mass of a polymerizable monomer (a), 0.1 to 10.0% by mass of a photopolymerization initiator (b), and 0.01 to 20.
    Type: Application
    Filed: June 25, 2020
    Publication date: August 4, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Kenji SUZUKI, Yuki NISHIJIMA, Daiki NOGUCHI, Takashi FUKUMOTO
  • Publication number: 20220152582
    Abstract: A polymer represented by the following general formula (I): wherein X1, X2, and X3 each represent a chalcogen atom, R1 and R2 each independently represent any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, and an aralkyl group, R3 and R4 each independently represent any one selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, R5 and R6 each independently represent any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, R7 represents a hydrogen atom or a methyl group, R8 represents any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, n
    Type: Application
    Filed: February 20, 2020
    Publication date: May 19, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Daiki NOGUCHI, Takashi FUKUMOTO, Yuki NISHIJIMA