Patents by Inventor Takakuni Matsuda

Takakuni Matsuda 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).

  • Publication number: 20250121065
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: May 13, 2024
    Publication date: April 17, 2025
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20240261280
    Abstract: A controlled release sterile freeze-dried aripiprazole formulation is provided which is formed of aripiprazole of a desired mean particle size and a vehicle therefor, which upon constitution with water and intramuscular injection releases aripiprazole over a period of at least about one week and up to about eight weeks. A method for preparing the controlled release freeze-dried aripiprazole formulation, and a method for treating schizophrenia employing the above formulation are also provided.
    Type: Application
    Filed: April 10, 2024
    Publication date: August 8, 2024
    Inventors: Janusz W. KOSTANSKI, Takakuni MATSUDA, Manoj NERURKAR, Vijay NARINGREKAR
  • Patent number: 12016927
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 end having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1.000 s?1, as measured.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: June 25, 2024
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki Kaneko, Takakuni Matsuda, Yusuke Hoshika
  • Publication number: 20240139177
    Abstract: Disclosed are a method for producing an aripiprazole suspension, wherein the aripiprazole has a mean particle size of 1 to 10 ?m, the method comprising the steps of: (a) combining bulk aripiprazole and a vehicle to form a primary suspension; (b) subjecting the primary suspension to first pulverization using e.g., a high shear pulverizing machine, a dispersion machine that applies shear force to a material to be processed, a colloid mill, an ultrasonic dispersion machine, or a high-pressure jet type emulsifying dispersion machine to form a secondary suspension; and (c) subjecting the secondary suspension to second pulverization using e.g., a high-pressure jet type emulsifying dispersion machine to form a sterile final suspension; and a method for producing a freeze-dried formulation from the aripiprazole suspension.
    Type: Application
    Filed: December 26, 2023
    Publication date: May 2, 2024
    Inventors: Shogo HIRAOKA, Takakuni MATSUDA, Junichi HATANAKA
  • Publication number: 20230390399
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 end having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1.000 s?1, as measured.
    Type: Application
    Filed: December 30, 2022
    Publication date: December 7, 2023
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Patent number: 11638757
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: May 2, 2023
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Daiki Kaneko, Takakuni Matsuda, Yusuke Hoshika
  • Publication number: 20220249523
    Abstract: A formulation stably comprising a tolvaptan prodrug is provided. Specifically, a freeze-dried composition comprising a compound represented by Formula (1): or a metal salt thereof and a disaccharide is provided.
    Type: Application
    Filed: March 27, 2020
    Publication date: August 11, 2022
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Takakuni MATSUDA, Nobutomo SAKO
  • Publication number: 20220096638
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: August 4, 2021
    Publication date: March 31, 2022
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20210361646
    Abstract: Disclosed are a method for producing an aripiprazole suspension, wherein the aripiprazole has a mean particle size of 1 to 10?m, the method comprising the steps of: (a) combining bulk aripiprazole and a vehicle to form a primary suspension; (b) subjecting the primary suspension to first pulverization using e.g., a high shear pulverizing machine, a dispersion machine that applies shear force to a material to be processed, a colloid mill, an ultrasonic dispersion machine, or a high-pressure jet type emulsifying dispersion machine to form a secondary suspension; and (c) subjecting the secondary suspension to second pulverization using e.g., a high-pressure jet type emulsifying dispersion machine to form a sterile final suspension; and a method for producing a freeze-dried formulation from the aripiprazole suspension.
    Type: Application
    Filed: August 3, 2021
    Publication date: November 25, 2021
    Inventors: Shogo Hiraoka, Takakuni Matsuda, Junichi Hatanaka
  • Publication number: 20210338663
    Abstract: A controlled release sterile freeze-dried aripiprazole formulation is provided which is formed of aripiprazole of a desired mean particle size and a vehicle therefor, which upon constitution with water and intramuscular injection releases aripiprazole over a period of at least about one week and up to about eight weeks. A method for preparing the controlled release freeze-dried aripiprazole formulation, and a method for treating schizophrenia employing the above formulation are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: Janusz W. KOSTANSKI, Takakuni MATSUDA, Manoj NERURKAR, Vijay H. NARINGREKAR
  • Patent number: 11097007
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: August 24, 2021
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki Kaneko, Takakuni Matsuda, Yusuke Hoshika
  • Publication number: 20210085794
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 25, 2021
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20200246333
    Abstract: Disclosed are a method for producing an aripiprazole suspension, wherein the aripiprazole has a mean particle size of 1 to 10 ?m, the method comprising the steps of: (a) combining bulk aripiprazole and a vehicle to form a primary suspension; (b) subjecting the primary suspension to first pulverization using e.g., a high shear pulverizing machine, a dispersion machine that applies shear force to a material to be processed, a colloid mill, an ultrasonic dispersion machine, or a high-pressure jet type emulsifying dispersion machine to form a secondary suspension; and (c) subjecting the secondary suspension to second pulverization using e.g., a high-pressure jet type emulsifying dispersion machine to form a sterile final suspension; and a method for producing a freeze-dried formulation from the aripiprazole suspension.
    Type: Application
    Filed: December 6, 2019
    Publication date: August 6, 2020
    Applicant: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Shogo Hiraoka, Takakuni Matsuda, Junichi Hatanaka
  • Publication number: 20200179517
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 11, 2020
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20200061057
    Abstract: A controlled release sterile freeze-dried aripiprazole formulation is provided which is formed of aripiprazole of a desired mean particle size and a vehicle therefor, which upon constitution with water and intramuscular injection releases aripiprazole over a period of at least about one week and up to about eight weeks. A method for preparing the controlled release freeze-dried aripiprazole formulation, and a method for treating schizophrenia employing the above formulation are also provided.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Inventors: Janusz W. KOSTANSKI, Takakuni MATSUDA, Manoj NERURKAR, Vijay H. NARINGREKAR
  • Patent number: 10517951
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 31, 2019
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki Kaneko, Takakuni Matsuda, Yusuke Hoshika
  • Publication number: 20190336607
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20190099494
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 4, 2019
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA
  • Publication number: 20180185358
    Abstract: Disclosed are a method for producing an aripiprazole suspension, wherein the aripiprazole has a mean particle size of 1 to 10 ?m, the method comprising the steps of: (a) combining bulk aripiprazole and a vehicle to form a primary suspension; (b) subjecting the primary suspension to first pulverization using e.g., a high shear pulverizing machine, a dispersion machine that applies shear force to a material to be processed, a colloid mill, an ultrasonic dispersion machine, or a high-pressure jet type emulsifying dispersion machine to form a secondary suspension; and (c) subjecting the secondary suspension to second pulverization using e.g., a high-pressure jet type emulsifying dispersion machine to form a sterile final suspension; and a method for producing a freeze-dried formulation from the aripiprazole suspension.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 5, 2018
    Inventors: Shogo Hiraoka, Takakuni Matsuda, Junichi Hatanaka
  • Publication number: 20180055941
    Abstract: An object of the present invention is to provide a storage-stable injectable preparation comprising a composition comprising a poorly soluble drug as an active ingredient and a dispersion medium. Another object of the present invention is to provide a compact, lightweight prefilled syringe by filling a syringe with the injectable preparation. The present invention provides an injectable preparation comprising a composition comprising a poorly soluble drug, a dispersion medium, and a specific suspending agent, the composition having a viscosity of 40 pascal-seconds or more in at least one point in the shear rate range of 0.01 to 0.02 s?1 and having a viscosity of 0.2 pascal-seconds or less in at least one point in the shear rate range of 900 to 1,000 s?1, as measured.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 1, 2018
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki KANEKO, Takakuni MATSUDA, Yusuke HOSHIKA