Patents by Inventor Seiji Takae

Seiji Takae 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: 20220152020
    Abstract: Provided is a pharmaceutical composition containing 6-ethyl-3-{3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]anilino}-5-[(oxan-4-yl)amino]pyrazine-2-carboxamide or a pharmaceutically acceptable salt thereof and a sweetener for reducing the bitterness of gilteritinib, suppressing the decrease in dissolution stability of gilteritinib due to, for example, stress such as heat and/or humidity over time, and having excellent dissolution stability. The pharmaceutical composition contains gilteritinib or a pharmaceutically acceptable salt thereof, a sweetener, and sugars and/or sugar alcohols.
    Type: Application
    Filed: April 2, 2020
    Publication date: May 19, 2022
    Inventors: Akihiko SASAKI, Ko TANAKA, Masakazu MIYAZAKI, Seiji TAKAE
  • Patent number: 10058536
    Abstract: To provide: (1) a modified release liquid (suspension) containing mirabegron, (2) a ready-to-suspend pharmaceutical composition containing mirabegron, and (3) a mirabegron-containing pharmaceutical composition that does not generate undissolved lumps, even when it is suspended at the time of use. The present invention relates to a pharmaceutical composition containing a complex of mirabegron or a pharmaceutically acceptable salt thereof with sodium polystyrene sulfonate.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: August 28, 2018
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Seiji Takae, Toshiro Sakai, Yuki Kasashima, Yurina Ansei, Tsuyoshi Kiyota
  • Publication number: 20180036288
    Abstract: To provide: (1) a modified release liquid (suspension) containing mirabegron, (2) a ready-to-suspend pharmaceutical composition containing mirabegron, and (3) a mirabegron-containing pharmaceutical composition that does not generate undissolved lumps, even when it is suspended at the time of use. The present invention relates to a pharmaceutical composition containing a complex of mirabegron or a pharmaceutically acceptable salt thereof with sodium polystyrene sulfonate.
    Type: Application
    Filed: March 31, 2016
    Publication date: February 8, 2018
    Applicant: ASTELLAS PHARMA INC.
    Inventors: SEIJI TAKAE, TOSHIRO SAKAI, YUKI KASASHIMA, YURINA ANSEI, TSUYOSHI KIYOTA
  • Patent number: 9408835
    Abstract: A pharmaceutical composition containing, as the active ingredient, 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide, of which the solubility in an acidic pH region is different from that in a neutral pH region, with rapid disintegration property and rapid drug dissolution property as well as the expectation of a good drug dosing compliance, is provided. The pharmaceutical composition for oral administration of the present invention contains 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide or a pharmaceutically acceptable salt thereof, and a hydrophilic lubricant, and is useful as a pharmaceutical composition for oral administration with rapid disintegration property and rapid drug dissolution property as well as the expectation of a good drug dosing compliance.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 9, 2016
    Assignee: ASTELLAS PHARMA INC.
    Inventors: Seiji Takae, Hiroyuki Kojima, Atsushi Sakurai, Tetsuya Tamura, Hiroaki Tasaki, Atsushi Muro
  • Publication number: 20160045479
    Abstract: A pharmaceutical composition containing, as the active ingredient, 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide, of which the solubility in an acidic pH region is different from that in a neutral pH region, with rapid disintegration property and rapid drug dissolution property as well as the expectation of a good drug dosing compliance, is provided. The pharmaceutical composition for oral administration of the present invention contains 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide or a pharmaceutically acceptable salt thereof, and a hydrophilic lubricant, and is useful as a pharmaceutical composition for oral administration with rapid disintegration property and rapid drug dissolution property as well as the expectation of a good drug dosing compliance.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 18, 2016
    Applicant: ASTELLAS PHARMA INC.
    Inventors: SEIJI TAKAE, HIROYUKI KOJIMA, ATSUSHI SAKURAI, TETSUYA TAMURA, HIROAKI TASAKI, ATSUSHI MURO
  • Patent number: 8592385
    Abstract: It is an object of the present invention to provide a polyion complex used as a non-viral gene vector, which achieves sufficiently high gene expression efficiency to a target cell. The polyion complex of the present invention comprises a block copolymer formed by binding polyethylene glycol to polycation via a disulfide group and a nucleic acid.
    Type: Grant
    Filed: September 4, 2006
    Date of Patent: November 26, 2013
    Assignee: The University of Tokyo
    Inventors: Kazunori Kataoka, Yuichi Yamasaki, Seiji Takae
  • Publication number: 20090258416
    Abstract: It is an object of the present invention to provide a polyion complex used as a non-viral gene vector, which achieves sufficiently high gene expression efficiency to a target cell. The polyion complex of the present invention comprises a block copolymer formed by binding polyethylene glycol to polycation via a disulfide group and a nucleic acid.
    Type: Application
    Filed: September 4, 2006
    Publication date: October 15, 2009
    Applicant: The University of Tokyo
    Inventors: Kazunori Kataoka, Yuichi Yamasaki, Seiji Takae
  • Publication number: 20050106570
    Abstract: The invention provides high sensitivity bioassay sensor systems in which non-specific adsorption of impurities such as, for example, proteins, in biological samples is inhibited. Polyethylene glycolated particles enclosing metal or semi-conductor which is in common with the sensor material are used for amplification.
    Type: Application
    Filed: March 24, 2003
    Publication date: May 19, 2005
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kazunori Kataoka, Yukio Nagasaki, Hidenori Otsuka, Katsumi Uchida, Takehiko Ishii, Yuko Suzuki, Yoshitsugu Akiyama, Seiji Takae