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: 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
  • Publication number: 20170348308
    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: August 18, 2017
    Publication date: December 7, 2017
    Inventors: Janusz W. KOSTANSKI, Takakuni MATSUDA, Manoj NERURKAR, Vijay H. NARINGREKAR
  • Patent number: 9809609
    Abstract: The present invention provides a benzoazepine compound represented by following general formula (1): or a salt thereof, wherein R represents a hydrogen atom, a hydroxy group optionally protected with a protecting group, etc., R1 represents a hydrogen atom or hydroxy-protecting group, and X represents an oxygen atom or a sulfur atom. The benzoazepine compound of the present invention and salts thereof have high solubility in water, and can be suitably used for injections.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: November 7, 2017
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Makoto Komatsu, Fumitaka Goto, Yasuhiro Menjo, Keigo Yamada, Takakuni Matsuda, Yusuke Kato
  • Patent number: 9763935
    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 thereof, 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: Grant
    Filed: October 6, 2014
    Date of Patent: September 19, 2017
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Janusz W. Kostanski, Takakuni Matsuda, Manoj Nerurkar, Vijay H. Naringrekar
  • Patent number: 9597283
    Abstract: This invention provides an injectable formulation to be administered intramuscularly or subcutaneously that is used for the prevention or treatment of polycystic kidney disease, and that can maintain a therapeutically effective blood concentration of tolvaptan for a long period of time; and a process for producing the same. More specifically, this invention relates to an injectable depot formulation comprising (1) a particle containing optically active tolvaptan as an active ingredient and (2) a pharmaceutically acceptable carrier for injection, and a process for producing the same.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: March 21, 2017
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Daiki Kaneko, Takakuni Matsuda, Kenichi Miyata, Kai Suzuki, Hiroyuki Fujiki, Shizuo Kinoshita, Koji Ohmoto, Miki Aihara