Patents by Inventor Kai KITAMURA

Kai KITAMURA 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: 11984245
    Abstract: Provided is an amorphous alloy soft magnetic powder having a composition represented by the following formula: (FexCo(1?x))(100?(a+b))(SiyB(1?y)) aMb, [where M is at least one selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, 0.73?x?0.85, 0.02 ?y?0.10, 13.0 ?a?19.0, and 0?b?2.0], in which a coercive force is 24 [A/m] or more (0.3 [Oe] or more) and 199 [A/m] or less (2.5 [Oe] or less), and a saturation magnetic flux density is 1.60 [T] or more and 2.20 [T] or less.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: May 14, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takuma Enomoto, Kai Kitamura, Junya Abe
  • Publication number: 20240133008
    Abstract: An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula (Fe1-xCrx) a (Si1-yBy)100-a-bCb expressed by an atomic ratio, in which 0<x?0.06, 0.3?y?0.7, 70.0?a?81.0, and 0<b?3.0, and when XAFS measurement is performed with an analysis depth set to a bulk, an obtained Fe—K absorption edge XANES spectrum has a first absorption edge structure having a peak A present in a range of 7113±1 eV and a first continuous band structure positioned at a higher energy side than the first absorption edge structure, and an intensity of the peak A at 7113 eV is 0.60 or more and 0.90 or less when an intensity of the first continuous band structure is 1.
    Type: Application
    Filed: July 24, 2023
    Publication date: April 25, 2024
    Inventors: Atsushi NAKAMURA, Takuma ENOMOTO, Kai KITAMURA, Junya ABE, Masayuki OMOTO
  • Patent number: 11912679
    Abstract: [Problem] A compound which is useful as a STING inhibitor is provided. [Means for Solution] The present inventors have found aryl alkynamide derivatives having an inhibitory action on STING. The aryl alkynamide derivatives of the present invention have an inhibitory action on STING and can be used as an agent for treating an autoimmune disease, a neurodegenerative disease, a type I interferonopathy and/or other STING-mediated disease.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: February 27, 2024
    Assignees: Astellas Pharma, Inc., Mitobridge, Inc.
    Inventors: Junko Maeda, Ikumi Kuriwaki, Kai Kitamura, Yumi Yamashita, Kenichi Kakefuda, Akio Kamikawa, Kenji Negoro, Wataru Hamaguchi, Ryushi Seo, Jeffrey Ciavarri
  • Publication number: 20240043975
    Abstract: An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula Fea(Si1-xBx)bCc expressed by an atomic ratio, in which 76.0?a?81.0, 16.0?b?22.0, 0<c?3.0, and 0.5?x?0.9. When XAFS measurement is performed with an analysis depth set to a surface, an obtained Si—K absorption edge XANES spectrum has a peak A having an energy in a range of 1845±1 eV and a peak B having an energy in a range of 1848±1 eV, and an intensity ratio A/B is 0.25 or less where A is an intensity of the peak A and B is an intensity of the peak B.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 8, 2024
    Inventors: Atsushi NAKAMURA, Takuma ENOMOTO, Kai KITAMURA, Junya ABE, Masayuki OMOTO
  • Publication number: 20240018113
    Abstract: [Problem] A compound which is useful as a STING inhibitor is provided. [Means for Solution] The present inventors have found aryl alkynamide derivatives having an inhibitory action on STING. The aryl alkynamide derivatives of the present invention have an inhibitory action on STING and can be used as an agent for treating an autoimmune disease, a neurodegenerative disease, a type I interferonopathy and/or other STING-mediated disease.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Applicants: Astellas Pharma, Inc., Mitobridge, Inc.
    Inventors: Junko Maeda, Ikumi Kuriwaki, Kai Kitamura, Yumi Yamashita, Kenichi Kakefuda, Akio Kamikawa, Kenji Negoro, Wataru Hamaguchi, Ryushi Seo, Jeffrey Ciavarri
  • Publication number: 20230235436
    Abstract: An amorphous alloy soft magnetic powder has a composition represented by (FexCo1-x)100-(a+b)(SiyB1-y)aMb, where M is at least one selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, and x, y, a, and b satisfy 0.73?x?0.85, 0.02?y?0.10, 13.0?a?19.0, and 0?b?2.0. A Si—K absorption edge XANES spectrum obtained when performing an XAFS measurement on particles has a peak A present in a range of 1842±1 eV, a peak B present in a range of 1845±1 eV, and a peak C present in a range of 1848±1 eV. An intensity ratio A/C is 0.40 or less, and an intensity ratio B/C is 0.60 or less.
    Type: Application
    Filed: January 26, 2023
    Publication date: July 27, 2023
    Inventors: Mayu WATANABE, Takuma ENOMOTO, Kai KITAMURA, Junya ABE, Atsushi NAKAMURA, Masayuki OMOTO, Ichiro ASAOKA
  • Publication number: 20220230789
    Abstract: Provided is an amorphous alloy soft magnetic powder having a composition represented by the following formula: (FexCo(1?x))(100?(a+b))(SiyB(1?y)) aMb, [where M is at least one selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, 0.73?x?0.85, 0.02 ?y?0.10, 13.0 ?a?19.0, and 0?b?2.0], in which a coercive force is 24 [A/m] or more (0.3 [Oe] or more) and 199 [A/m] or less (2.5 [Oe] or less), and a saturation magnetic flux density is 1.60 [T] or more and 2.20 [T] or less.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 21, 2022
    Inventors: Takuma ENOMOTO, Kai KITAMURA, Junya ABE