Patents by Inventor Takako Okumura

Takako Okumura 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: 20170253595
    Abstract: This invention provides a medicament for the treatment of cancer, which cause a reduction of cancer. This invention relates to use of a compound which has inhibitory activities against prostaglandin E2 receptor (EP4 receptor) and is represented by the following general formula (I), (II), (III), or (VI) or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt for the manufacture of a medicament for the treatment of cancer. The invention relates to a method for treatment of cancer comprising administering the compound or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt to humans or animals. The compound or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition may be used in combination with one or more second active agents.
    Type: Application
    Filed: May 23, 2017
    Publication date: September 7, 2017
    Applicant: AskAt Inc.
    Inventors: Yukinori TAKE, Shinichi KOIZUMI, Takako OKUMURA, Kazuhiko NONOMURA
  • Patent number: 9688674
    Abstract: This invention provides a medicament for the treatment of cancer, which cause a reduction of cancer. This invention relates to use of a compound which has inhibitory activities against prostaglandin E2 receptor (EP4 receptor) and is represented by the following general formula (I), (II), (III), or (IV), or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt for the manufacture of a medicament for the treatment of cancer. The invention relates to a method for treatment of cancer comprising administering the compound or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt to humans or animals. The compound or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition may be used in combination with one or more second active agents.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 27, 2017
    Assignee: AskAt Inc.
    Inventors: Yukinori Take, Shinichi Koizumi, Takako Okumura, Kazuhiko Nonomura
  • Patent number: 9561210
    Abstract: The purpose of this invention is to provide a compound for preventing or treating an ocular disease and a pharmaceutical composition comprising the same. This invention provides a pharmaceutical composition comprising a compound as defined by the formula (I?) or a pharmaceutically acceptable salt thereof. The pharmaceutical composition is useful for preventing or treating an ocular disease such as retinochoroidal degeneration.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: February 7, 2017
    Assignee: AskAt Inc.
    Inventors: Takako Okumura, Shinichi Koizumi, Hideaki Hara
  • Publication number: 20160317514
    Abstract: This invention relates to a compound with EP4 antagonistic activity, or a pharmaceutically acceptable salt with EP4 receptor antagonistic activities, which is useful in the treatment of cartilage disease. This invention also relates to a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof with EP4 receptor antagonistic activities, which is useful in the treatment of cartilage disease. This invention also relates to a pharmaceutical composition for the treatment of cartilage disease which comprises a therapeutically effective amount of a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof. Further this invention relates to a method for the treatment of cartilage disease in an animal subject including a mammalian subject, which comprises administering to the animal subject including a mammalian subject a compound of the formula (I), (II), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 19, 2014
    Publication date: November 3, 2016
    Applicant: AskAt Inc.
    Inventor: Takako OKUMURA
  • Patent number: 9457084
    Abstract: This invention relates to a compound with EP4 antagonistic activity, or a pharmaceutically acceptable salt with EP4 receptor antagonistic activities, which is useful in the treatment of immune disease or allergy. This invention also relates to a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof with EP4 receptor antagonistic activities, which is useful in the treatment of immune disease or allergy. This invention also relates to a pharmaceutical composition for the treatment of immune disease or allergy which comprises a therapeutically effective amount of a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: October 4, 2016
    Assignee: RAQUALIA PHARMA INC.
    Inventors: Kiyoshi Kanazawa, Kazuhiko Nonomura, Takako Okumura, Shinichi Koizumi
  • Patent number: 9447066
    Abstract: This invention relates to salts and crystal forms of (S)-6-chloro-7-(1,1-dimethylethyl)-2-trifluoromethyl-2H-1-benzopyran-3-carboxylic acid, Compound A, which is cyclooxygenase-2 inhibitor. The present invention provides a salt of compound A, a crystal form thereof, a process for preparing the said salt and a pharmaceutical composition thereof and its use. The salts and/or co-crystals of Compound A of the present invention show good formulation properties such as high aqueous solubility, good intrinsic dissolution, good crystallinity, good thermal stability or low hygroscopicity.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: September 20, 2016
    Assignee: AskAt Inc.
    Inventors: Yoshiyuki Okumura, Yasuhiro Iwata, Toyoharu Numata, Masaki Sudo, Takako Okumura
  • Publication number: 20160008317
    Abstract: The purpose of this invention is to provide a compound for preventing or treating an ocular disease and a pharmaceutical composition comprising the same. This invention provides a pharmaceutical composition comprising a compound as defined by the formula (I?) or a pharmaceutically acceptable salt thereof. The pharmaceutical composition is useful for preventing or treating an ocular disease such as retinochoroidal degeneration.
    Type: Application
    Filed: March 31, 2014
    Publication date: January 14, 2016
    Applicant: AskAt Inc.
    Inventors: Takako OKUMURA, Shinichi KOIZUMI, Hideaki HARA
  • Publication number: 20150353520
    Abstract: This invention relates to salts and crystal forms of (S)-6-chloro-7-(1,1-dimethylethyl)-2-trifluoromethyl-2H-1-benzopyran-3-carboxylic acid, Compound A, which is cyclooxygenase-2 inhibitor. The present invention provides a salt of compound A, a crystal form thereof, a process for preparing the said salt and a pharmaceutical composition thereof and its use. The salts and/or co-crystals of Compound A of the present invention show good formulation properties such as high aqueous solubility, good intrinsic dissolution, good crystallinity, good thermal stability or low hygroscopicity.
    Type: Application
    Filed: January 6, 2014
    Publication date: December 10, 2015
    Applicant: AskAt Inc.
    Inventors: Yoshiyuki OKUMURA, Yasuhiro IWATA, Toyoharu NUMATA, Masaki SUDO, Takako OKUMURA
  • Publication number: 20150111920
    Abstract: This invention provides a medicament for the treatment of cancer, which cause a reduction of cancer. This invention relates to use of a compound which has inhibitory activities against prostaglandin E2 receptor (EP4 receptor) and is represented by the following general formula (I), (II), (III), or (IV), or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt for the manufacture of a medicament for the treatment of cancer. The invention relates to a method for treatment of cancer comprising administering the compound or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt to humans or animals. The compound or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition may be used in combination with one or more second active agents.
    Type: Application
    Filed: November 19, 2014
    Publication date: April 23, 2015
    Inventors: Yukinori TAKE, Shinichi KOIZUMI, Takako OKUMURA, Kazuhiko NONOMURA
  • Patent number: 8921391
    Abstract: This invention provides a medicament for the treatment of cancer, which cause a reduction of cancer. This invention relates to use of a compound which has inhibitory activities against prostaglandin E2 receptor (EP4 receptor) and is represented by the following general formula (I), (II), (III), or (IV), or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt for the manufacture of a medicament for the treatment of cancer. The invention relates to a method for treatment of cancer comprising administering the compound or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt to humans or animals. The compound or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition may be used in combination with one or more second active agents.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: December 30, 2014
    Assignee: RaQualia Pharma Inc.
    Inventors: Yukinori Take, Shinichi Koizumi, Takako Okumura, Kazuhiko Nonomura
  • Publication number: 20120316197
    Abstract: This invention relates to a compound with EP4 antagonistic activity, or a pharmaceutically acceptable salt with EP4 receptor antagonistic activities, which is useful in the treatment of immune disease or allergy. This invention also relates to a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof with EP4 receptor antagonistic activities, which is useful in the treatment of immune disease or allergy. This invention also relates to a pharmaceutical composition for the treatment of immune disease or allergy which comprises a therapeutically effective amount of a compound of formula (I), (II), (III), (IV), (Va) or (Vb), or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 13, 2012
    Applicant: RAQUALIA PHARMA INC.
    Inventors: Kiyoshi Kanazawa, Kazuhiko Nonomura, Takako Okumura, Shinichi Koizumi
  • Publication number: 20120088723
    Abstract: This invention provides a medicament for the treatment of cancer, which cause a reduction of cancer. This invention relates to use of a compound which has inhibitory activities against prostaglandin E2 receptor (EP4 receptor) and is represented by the following general formula (I), (II), (III), or (IV), or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt for the manufacture of a medicament for the treatment of cancer. The invention relates to a method for treatment of cancer comprising administering the compound or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the compound or the salt to humans or animals. The compound or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition may be used in combination with one or more second active agents.
    Type: Application
    Filed: April 22, 2010
    Publication date: April 12, 2012
    Applicant: RAQUALIA PHARMA INC.
    Inventors: Yukinori Take, Shinichi Koizumi, Takako Okumura, Kazuhiko Nonomura
  • Publication number: 20020077329
    Abstract: The invention features a method of treating rheumatoid arthritis in a mammal comprising administering an agent that inhibits prostaglandin EP4 receptor (EP4) activity. Also featured is a method of identifying agents that selectively inhibit EP4 activity in vivo.
    Type: Application
    Filed: October 15, 2001
    Publication date: June 20, 2002
    Inventors: Laurent Audoly, Takako Okumura, Masato Shimojo