Patents by Inventor Takashi Kobunai

Takashi Kobunai 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: 9345767
    Abstract: A method for predicting a therapeutic effect of chemotherapy with a combination drug containing tegafur, gimeracil, and oteracil potassium in a gastric cancer patient by: (1) measuring an expression level of epidermal growth factor receptor (EGFR) in a biological sample obtained from the patient; (2) comparing the expression level of EGFR obtained in step (1) with a corresponding predetermined cut-off point; and (3) predicting that the patient is likely to sufficiently respond to chemotherapy when a tegafur, gimeracil, and oteracil potassium combination drug is used with an EGFR inhibitor, when the step (2) comparison reveals that the expression level of EGFR is greater than the cut-off point, or predicting that the patient is likely to sufficiently respond to chemotherapy when a tegafur, gimeracil, and oteracil potassium combination drug is used alone, when the step (2) comparison reveals that the expression level of EGFR is not greater than the cut-off point.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 24, 2016
    Assignee: TAIHO PHARMACEUTICAL CO., LTD.
    Inventors: Takashi Kobunai, Hitoshi Saito, Teiji Takechi
  • Publication number: 20140105893
    Abstract: A method for predicting a therapeutic effect of chemotherapy with a combination drug containing tegafur, gimeracil, and oteracil potassium in a gastric cancer patient by: (1) measuring an expression level of epidermal growth factor receptor (EGFR) in a biological sample obtained from the patient; (2) comparing the expression level of EGFR obtained in step (1) with a corresponding predetermined cut-off point; and (3) predicting that the patient is likely to sufficiently respond to chemotherapy when a tegafur, gimeracil, and oteracil potassium combination drug is used with an EGFR inhibitor, when the step (2) comparison reveals that the expression level of EGFR is greater than the cut-off point, or predicting that the patient is likely to sufficiently respond to chemotherapy when a tegafur, gimeracil, and oteracil potassium combination drug is used alone, when the step (2) comparison reveals that the expression level of EGFR is not greater than the cut-off point.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 17, 2014
    Applicant: TAIHO PHARMACEUTICAL CO., LTD.
    Inventors: Takashi Kobunai, Hitoshi Saito, Teiji Takechi
  • Patent number: 8440398
    Abstract: A factor affecting sensitivities to anticancer agents is analyzed and the validity of the factor is demonstrated. The present invention provides a method for predicting sensitivities to 5-fluorouracil-based anticancer agents using the copy number of dihydropyrimidine dehydrogenase gene as an indicator. Also disclosed are a kit and primers for use in predicting sensitivities to 5-fluorouracil-based anticancer agents.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: May 14, 2013
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Takashi Kobunai, Akio Ooyama
  • Publication number: 20090197264
    Abstract: A factor affecting sensitivities to anticancer agents is analyzed and the validity of the factor is demonstrated. The present invention provides a method for predicting sensitivities to 5-fluorouracil-based anticancer agents using the copy number of dihydropyrimidine dehydrogenase gene as an indicator. Also disclosed are a kit and primers for use in predicting sensitivities to 5-fluorouracil-based anticancer agents.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 6, 2009
    Inventors: Takashi Kobunai, Akio Ooyama
  • Patent number: 5571914
    Abstract: A 4-desoxy-4-epipodophyllotoxin derivative of the following formula ##STR1## wherein R and R.sub.1 are as defined in the specification or a pharmaceutically acceptable salt thereof as well as an antitumor composition comprising such derivative or salt as an active ingredient.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Taiho Pharmaceutical Co. Ltd.
    Inventors: Tadafumi Terada, Katsuhiko Fujimoto, Makoto Nomura, Junichi Yamashita, Setsuo Takeda, Takashi Kobunai, Hideo Yamaguchi, Konstanty Wierzba
  • Patent number: 5536847
    Abstract: A 4-desoxy-4-epipodophyllotoxin derivative of the following formula ##STR1## wherein R and R.sub.1 are as defined in the specification or a pharmaceutically acceptable salt thereof as well as an antitumor composition comprising such derivative or salt as an active ingredient.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 16, 1996
    Assignee: Taiho Pharmaceutical Co. Ltd.
    Inventors: Tadafumi Terada, Katsuhiko Fujimoto, Makoto Nomura, Junichi Yamashita, Setsuo Takeda, Takashi Kobunai, Hideo Yamaguchi, Konstanty Wierzba
  • Patent number: 5489698
    Abstract: A 4-desoxy-4-epipodophyllotoxin derivative of the following formula ##STR1## wherein R and R.sub.1 are as defined in the specification or a pharmaceutically acceptable salt thereof as well as an antitumor composition comprising such derivative or salt as an active ingredient.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: February 6, 1996
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Tadafumi Terada, Katsuhiko Fujimoto, Makoto Nomura, Junichi Yamashita, Setsuo Takeda, Takashi Kobunai, Hideo Yamaguchi, Konstanty Wierzba