Patents by Inventor Keiko Esaki

Keiko Esaki 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: 20230183363
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: October 28, 2022
    Publication date: June 15, 2023
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20200002429
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20170129950
    Abstract: The inventors successfully produced anti-Epiregulin antibodies showing cross-species reactivity between cynomolgus monkey (non-human animals) and human, anti-Epiregulin antibodies with suppressed chemical degradation, anti-Epiregulin antibodies with lowered isoelectric point, anti-Epiregulin antibodies with increased thermal denaturation midpoint temperature, and anti-Epiregulin antibodies with reduced amount of aggregate by performing appropriate amino acid residue substitutions in the variable-region sequences of the humanized EP27 antibody which inhibits growth of cancer cells by exhibiting cytotoxic activity and neutralizing activity against human Epiregulin-expressing cells.
    Type: Application
    Filed: September 15, 2016
    Publication date: May 11, 2017
    Inventors: Hirotake SHIRAIWA, Keiko Esaki, Tomoyuki Igawa, Taichi Kuramochi, Atsuhiko Maeda, Shigero Tamba, Hiroyuki Tsunoda, Tatsuhiko Tachibana, Yasuko Kinoshita, Masami Suzuki, Atsuhiko Kato, Etsuko Takeiri, Eri Hashimoto, Yoshinori Watanabe
  • Patent number: 9556264
    Abstract: The inventors successfully produced anti-Epiregulin antibodies showing cross-species reactivity between cynomolgus monkey (non-human animals) and human, anti-Epiregulin antibodies with suppressed chemical degradation, anti-Epiregulin antibodies with lowered isoelectric point, anti-Epiregulin antibodies with increased thermal denaturation midpoint temperature, and anti-Epiregulin antibodies with reduced amount of aggregate by performing appropriate amino acid residue substitutions in the variable-region sequences of the humanized EP27 antibody which inhibits growth of cancer cells by exhibiting cytotoxic activity and neutralizing activity against human Epiregulin-expressing cancer cells.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: January 31, 2017
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Hirotake Shiraiwa, Keiko Esaki, Tomoyuki Igawa, Taichi Kuramochi, Atsuhiko Maeda, Shigero Tamba, Hiroyuki Tsunoda, Tatsuhiko Tachibana, Yasuko Kinoshita, Masami Suzuki, Atsuhiko Kato, Etsuko Takeiri, Eri Hashimoto, Yoshinori Watanabe
  • Patent number: 9399680
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: July 26, 2016
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20150175704
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 25, 2015
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20150110793
    Abstract: The inventors successfully produced anti-Epiregulin antibodies showing cross-species reactivity between cynomolgus monkey (non-human animals) and human, anti-Epiregulin antibodies with suppressed chemical degradation, anti-Epiregulin antibodies with lowered isoelectric point, anti-Epiregulin antibodies with increased thermal denaturation midpoint temperature, and anti-Epiregulin antibodies with reduced amount of aggregate by performing appropriate amino acid residue substitutions in the variable-region sequences of the humanized EP27 antibody which inhibits growth of cancer cells by exhibiting cytotoxic activity and neutralizing activity against human Epiregulin-expressing cancer cells.
    Type: Application
    Filed: December 28, 2012
    Publication date: April 23, 2015
    Inventors: Hirotake Shiraiwa, Keiko Esaki, Tomoyuki Igawa, Taichi Kuramochi, Atsuhiko Maeda, Shigero Tamba, Hiroyuki Tsunoda, Tatsuhiko Tachibana, Yasuko Kinoshita, Masami Suzuki, Atsuhiko Kato, Etsuko Takeiri, Eri Hashimoto, Yoshinori Watanabe
  • Publication number: 20140039165
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Patent number: 8575317
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: November 5, 2013
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20110229459
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: December 4, 2009
    Publication date: September 22, 2011
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20110129459
    Abstract: The present inventors successfully obtained anti-NR10 antibodies having an effective neutralizing activity against NR10. The anti-NR10 antibodies provided by the present invention are useful as, for example, pharmaceuticals for treating or preventing inflammatory diseases.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 2, 2011
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Taichi Kuramochi, Keiko Kasutani, Souhei Ohyama, Hiroyuki Tsunoda, Tomoyuki Igawa, Tatsuhiko Tachibana, Hirotake Shiraiwa, Keiko Esaki
  • Publication number: 20070238128
    Abstract: The present invention provides a method for screening substances that promote oligomerization of receptor protein molecules or peptide fragments thereof, which comprises determining whether the receptor protein molecules or peptide fragments thereof are oligomerized when contacted with a test substance; a test kit for screening substances that promote the oligomerization of the receptor protein molecules or peptide fragments thereof, which comprises the receptor protein molecules or peptide fragments thereof and a buffer; and a substance identified by the above method, which promotes the oligomerization of the receptor protein molecules or peptide fragments thereof.
    Type: Application
    Filed: July 30, 2004
    Publication date: October 11, 2007
    Inventors: Masato Higuchi, Yasushi Shimonaka, Keiko Esaki
  • Publication number: 20060183153
    Abstract: The present invention provides a method for screening substances that promote oligomerization of receptor protein molecules or peptide fragments thereof, which comprises determining whether the receptor protein molecules or peptide fragments thereof are oligomerized when contacted with a test substance; a test kit for screening substances that promote the oligomerization of the receptor protein molecules or peptide fragments thereof, which comprises the receptor protein molecules or peptide fragments thereof and a buffer; and a substance identified by the above method, which promotes the oligomerization of the receptor protein molecules or peptide fragments thereof.
    Type: Application
    Filed: December 7, 2004
    Publication date: August 17, 2006
    Inventors: Masato Higuchi, Yasushi Shimonaka, Keiko Esaki
  • Publication number: 20050084908
    Abstract: A method for detecting the binding between a binding molecule and an immobilized low-molecular-weight compound is provided. The method comprises a step of measuring volume changes due to the binding of both compounds as an indicator. The use of immobilized low-molecular-weight compound produces highly reliable measuring results in terms of surface plasmon resonance, etc. The detection method of this invention is useful for screening for low-molecular-weight compounds that bind to binding molecules, or binding molecules that bind to low-molecular-weight compounds.
    Type: Application
    Filed: August 24, 2004
    Publication date: April 21, 2005
    Inventor: Keiko Esaki
  • Publication number: 20030138870
    Abstract: The present invention provides a convenient and highly accurate method of measuring the biological activity of a ligand. Namely, this method of evaluating the binding activity of a ligand to a ligand-binding protein comprises; measuring the binding activity value of the ligand to the ligand-binding protein, and measuring the binding activity value of the above-described ligand to a second ligand-binding substance binding to a site other than the binding site where the ligand binds to the above-described ligand-binding protein.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 24, 2003
    Inventors: Megumi Tanaka, Masaya Kakuta, Akiko Koga, Keiko Esaki