Patents by Inventor Naoko Ohtani

Naoko Ohtani 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: 10583129
    Abstract: This invention is directed to prostaglandin E2 receptor 4 (EP4) antagonists useful in the treatment of nonalcoholic steatohepatitis (NASH)-associated liver cancer in a human or animal. The method comprises administering one or more of Compound A, Compound B or Compound C, or pharmaceutically acceptable salts thereof, as the EP4 antagonist(s). The method may include a pharmaceutical composition comprising the EP4 antagonist, and may include one or more other active agents and/or therapies.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 10, 2020
    Assignee: AskAt Inc.
    Inventors: Naoko Ohtani, Fumitaka Kamachi, Tze Mun Loo, Shinichi Koizumi, Takako Okumura
  • Publication number: 20190365680
    Abstract: This invention is directed to prostaglandin E2 receptor 4 (EP4) antagonists useful in the treatment of nonalcoholic steatohepatitis (NASH)-associated liver cancer in a human or animal. The method comprises administering one or more of Compound A, Compound B or Compound C, or pharmaceutically acceptable salts thereof, as the EP4 antagonist(s). The method may include a pharmaceutical composition comprising the EP4 antagonist(s), and may include one or more other active agents and/or therapies.
    Type: Application
    Filed: November 2, 2017
    Publication date: December 5, 2019
    Inventors: Naoko OHTANI, Fumitaka KAMACHI, Tze Mun LOO, Shinichi KOIZUMI, Takako OKUMURA
  • Publication number: 20190269663
    Abstract: This invention is directed to prostaglandin E2 receptor 4 (EP4) antagonists useful in the treatment of nonalcoholic steatohepatitis (NASH)-associated liver cancer in a human or animal. The method comprises administering one or more of Compound A, Compound B or Compound C, or pharmaceutically acceptable salts thereof, as the EP4 antagonist(s). The method may include a pharmaceutical composition comprising the EP4 antagonist, and may include one or more other active agents and/or therapies.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: Naoko OHTANI, Fumitaka KAMACHI, Tze Mun LOO, Shinichi KOIZUMI, Takako OKUMURA
  • Patent number: 10342785
    Abstract: This invention is directed to prostaglandin E2 receptor 4 (EP4) antagonists useful in the treatment of nonalcoholic steatohepatitis (NASH)-associated liver cancer in a human or animal. The method comprises administering one or more of Compound A, Compound B or Compound C, or pharmaceutically acceptable salts thereof, as the EP4 antagonist(s). The method may include a pharmaceutical composition comprising the EP4 antagonist, and may include one or more other active agents and/or therapies.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 9, 2019
    Assignee: AskAt Inc.
    Inventors: Naoko Ohtani, Fumitaka Kamachi, Tze Mun Loo, Shinichi Koizumi, Takako Okumura
  • Publication number: 20180125832
    Abstract: This invention is directed to prostaglandin E2 receptor 4 (EP4) antagonists useful in the treatment of nonalcoholic steatohepatitis (NASH)-associated liver cancer in a human or animal. The method comprises administering one or more of Compound A, Compound B or Compound C, or pharmaceutically acceptable salts thereof, as the EP4 antagonist(s). The method may include a pharmaceutical composition comprising the EP4 antagonist, and may include one or more other active agents and/or therapies.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 10, 2018
    Inventors: Naoko OHTANI, Fumitaka KAMACHI, Tze Mun LOO, Shinichi KOIZUMI, Takako OKUMURA
  • Patent number: 9856507
    Abstract: The present invention provides a method for screening for a food ingredient or a food composition that reduces a cancer risk and inhibits cancer development. A substance that reduces a cancer risk is screened by administering a candidate substance and analyzing alteration in gut microbiota or a metabolite produced by an intestinal bacterium. Also, candidate substances are screened by adding each candidate substance to a bacterial culture system and analyzing its effect on a bacterium involved in cancer development.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: January 2, 2018
    Assignee: JAPANESE FOUNDATION FOR CANCER RESEARCH
    Inventors: Eiji Hara, Naoko Ohtani, Shin Yoshimoto, Tze Mun Loo
  • Patent number: 9670550
    Abstract: The present invention provides a method capable of detecting a cancer and/or a carcinogenic risk, and a reagent for the detection thereof. The present invention also provides a method for screening for a pharmaceutical drug for reducing a carcinogenic risk and a pharmaceutical composition. Since cancer development closely correlates with alteration in gut microbiota, cancer development and/or a risk of cancer development are detected by detecting alteration in gut microbiota and a secondary bile acid produced by an intestinal bacterium. The present invention further provides a method for screening for a pharmaceutical drug with a gut microbiota as an index, and a pharmaceutical composition.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: June 6, 2017
    Assignee: JAPANESE FOUNDATION FOR CANCER RESEARCH
    Inventors: Eiji Hara, Naoko Ohtani, Shin Yoshimoto, Tze Mun Loo
  • Publication number: 20160002699
    Abstract: The present invention provides a method for screening for a food ingredient or a food composition that reduces a cancer risk and inhibits cancer development. A substance that reduces a cancer risk is screened by administering a candidate substance and analyzing alteration in gut microbiota or a metabolite produced by an intestinal bacterium. Also, candidate substances are screened by adding each candidate substance to a bacterial culture system and analyzing its effect on a bacterium involved in cancer development.
    Type: Application
    Filed: February 10, 2014
    Publication date: January 7, 2016
    Inventors: Eiji Hara, Naoko Ohtani, Shin Yoshimoto, Tze Mun Loo
  • Publication number: 20150376716
    Abstract: The present invention provides a method capable of detecting a cancer and/or a carcinogenic risk, and a reagent for the detection thereof. The present invention also provides a method for screening for a pharmaceutical drug for reducing a carcinogenic risk and a pharmaceutical composition. Since cancer development closely correlates with alteration in gut microbiota, cancer development and/or a risk of cancer development are detected by detecting alteration in gut microbiota and a secondary bile acid produced by an intestinal bacterium. The present invention further provides a method for screening for a pharmaceutical drug with a gut microbiota as an index, and a pharmaceutical composition.
    Type: Application
    Filed: February 10, 2014
    Publication date: December 31, 2015
    Inventors: Eiji Hara, Naoko Ohtani, Shin Yoshimoto, Tze Mun Loo
  • Patent number: 6524796
    Abstract: The promoter of the human p27Kip1 gene is provided. The promoter region is useful to screen a compound that regulates the promoter of the human p27Kip1 gene or regulates the activity of the promoter. It enables the gene therapy utilizing the promoter.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 25, 2003
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Toshiyuki Sakai, Naoko Ohtani
  • Patent number: 5850149
    Abstract: A part of a gate insulation film between a semiconductor substrate and an exposed gate electrode of a semiconductor device is partially and stepwise etched away. A voltage is applied between the semiconductor substrate and the gate electrode in a chemical wet etching system at each step. An anode oxide film is formed on the surface of the gate electrode in a step, when a defect is included in a gate oxide film. The gate electrode is etched away in another step, when a defect is not included in the gate oxide film. A position of a defect in the gate insulation film is detected from the difference in the area of the gate insulation film when an anode oxide film is formed on the gate electrode, and when the gate electrode is etched away.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: December 15, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiharu Katayama, Naoko Ohtani, Yukari Imai