Patents by Inventor Takuji Maejima

Takuji Maejima 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: 10683335
    Abstract: Provided herein are freeze-dried preparations comprising a high-purity parathyroid hormone (PTH) peptide and one or more PTH analogs, and methods for the production thereof. Also provided is a test method for detecting PTH analogs to confirm the purity of a freeze-dried preparation containing PTH peptide, and the like.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 16, 2020
    Assignee: ASAHI KASEI PHARMA CORPORATION
    Inventors: Fumihide Nishio, Takuji Maejima, Yoshiro Mitome
  • Publication number: 20180265561
    Abstract: Provided herein are freeze-dried preparations comprising a high-purity parathyroid hormone (PTH) peptide and one or more PTH analogs, and methods for the production thereof. Also provided is a test method for detecting PTH analogs to confirm the purity of a freeze-dried preparation containing PTH peptide, and the like.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 20, 2018
    Inventors: Fumihide NISHIO, Takuji MAEJIMA, Yoshiro MITOME
  • Patent number: 10011643
    Abstract: [Problem] Provided is a freeze-dried preparation containing high-purity PTH peptide and a method for the production thereof. Also provided is a test method for PTH analogs to confirm the purity of a freeze-dried preparation containing PTH peptide, and the like. [Solution] In the present invention, the presence of PTH analogs produced during the manufacturing process of a freeze-dried preparation containing PTH peptide was confirmed. The production of these PTH analogs was also discovered to be markedly prevented or reduced by controlling exposure of the solution containing PTH peptide and the like to air environments within a pharmaceutical production facility.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 3, 2018
    Assignee: ASAHI KASEI PHARMA CORPORATION
    Inventors: Fumihide Nishio, Takuji Maejima, Yoshiro Mitome
  • Publication number: 20160145316
    Abstract: [Problem] Provided is a freeze-dried preparation containing high-purity PTH peptide and a method for the production thereof. Also provided is a test method for PTH analogs to confirm the purity of a freeze-dried preparation containing PTH peptide, and the like. [Solution] In the present invention, the presence of PTH analogs produced during the manufacturing process of a freeze-dried preparation containing PTH peptide was confirmed. The production of these PTH analogs was also discovered to be markedly prevented or reduced by controlling exposure of the solution containing PTH peptide and the like to air environments within a pharmaceutical production facility.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 26, 2016
    Inventors: Fumihide Nishio, Takuji Maejima, Yoshiro Mitome
  • Publication number: 20140088014
    Abstract: [Problem] Provided is a freeze-dried preparation containing high-purity PTH peptide and a method for the production thereof. Also provided is a test method for PTH analogs to confirm the purity of a freeze-dried preparation containing PTH peptide, and the like. [Solution] In the present invention, the presence of PTH analogs produced during the manufacturing process of a freeze-dried preparation containing PTH peptide was confirmed. The production of these PTH analogs was also discovered to be markedly prevented or reduced by controlling exposure of the solution containing PTH peptide and the like to air environments within a pharmaceutical production facility.
    Type: Application
    Filed: May 31, 2012
    Publication date: March 27, 2014
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventors: Fumihide Nishio, Takuji Maejima, Yoshiro Mitome
  • Patent number: 7718797
    Abstract: Fasudil-containing preparations that despite the us of a container excelling in the visibility of contents without particularly blocking of light, exhibit high stability against light; and a method of improving the stability of the preparations against light of storing the same. By regulating the pH value of aqueous solution of fasudil charged in a colorless transparent container to ?5.5, there can be provided fasudil-containing preparations excelling in stability against light; and can be provided a method of improving the stability of the aqueous solution of fasudil against light, or storing the same.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: May 18, 2010
    Assignee: Asahi Kasei Pharma Corporation
    Inventors: Takuji Maejima, Miki Ohshima
  • Publication number: 20080234483
    Abstract: Fasudil-containing preparations that despite the us of a container excelling in the visibility of contents without particularly blocking of light, exhibit high stability against light; and a method of improving the stability of the preparations against light of storing the same. By regulating the pH value of aqueous solution of fasudil charged in a colorless transparent container to ?5.5, there can be provided fasudil-containing preparations excelling in stability against light; and can be provided a method of improving the stability of the aqueous solution of fasudil against light, or storing the same.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 25, 2008
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventors: Takuji Maejima, Miki Ohshima