Patents by Inventor Keiichi Masuya

Keiichi Masuya 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: 20200291061
    Abstract: A method for producing a peptide by conducting steps (1) condensing an N-protected amino acid or an N-protected peptide to an N-terminus of a C-protected amino acid or a C-protected peptide represented by formula (II): wherein Y represents an amino acid or a peptide with an unprotected N-terminus; R1, R2 and R3 each independently represent an optionally substituted aliphatic hydrocarbon group, an optionally substituted aromatic hydrocarbon group, or —OR4 (wherein R4 represents an optionally substituted aliphatic or aromatic hydrocarbon group; two of R1, R2 and R3 may form a 5- to 7-membered ring together with the Si atom to which they are bonded; and the R1R2R3Si group has 8 or more carbon atoms and is bonded to a C-terminus of an amino acid or a peptide in Y, and (2) removing the protective group at the N-terminus of the peptide obtained in step (1).
    Type: Application
    Filed: October 3, 2018
    Publication date: September 17, 2020
    Applicants: NISSAN CHEMICAL CORPORATION, PeptiDream Inc.
    Inventors: Akihiro NAGAYA, Michiharu HANDA, Naohiko YASUDA, Madoka YOSHINO, Yutaka KOBAYASHI, Keiichi MASUYA
  • Patent number: 10632187
    Abstract: Disclosed is a hemagglutinin-binding peptide producing an anti-influenza virus effect higher than that of existing peptides. Also disclosed are hemagglutinin-binding peptides comprising a polypeptide having any of the following amino acid sequences (i) to (iv): (i) Thr-MeGly-Asp-MePhe-MePhe-Ser-MeSer-His-Tyr-Thr-Val-Pro-Arg (SEQ ID NO: 1); (ii) Arg-Val-Ser-MePhe-Thr-Tyr-MePhe-MeSer-Tyr-Thr-Pro-Ser (SEQ ID NO: 2); (iii) an amino acid sequence with deletions, additions, or substitutions of one or several amino acids in SEQ ID NO: 1 or 2; and (iv) an amino acid sequence having 90% or more sequence identity to that of SEQ ID NO: 1 or 2.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: April 28, 2020
    Assignees: PeptiDream Inc., Tokyo Metropolitan Institute of Medical Science
    Inventors: Kiichi Kubota, Patrick Reid, Michinori Kohara, Keiichi Masuya, Masaki Ohuchi
  • Publication number: 20190282688
    Abstract: Disclosed is a hemagglutinin-binding peptide producing an anti-influenza virus effect higher than that of existing peptides. Also disclosed are hemagglutinin-binding peptides comprising a polypeptide having any of the following amino acid sequences (i) to (iv): (i) Thr-MeGly-Asp-MePhe-MePhe-Ser-MeSer-His-Tyr-Thr-Val-Pro-Arg (SEQ ID NO: 1); (ii) Arg-Val-Ser-MePhe-Thr-Tyr-MePhe-MeSer-Tyr-Thr-Pro-Ser (SEQ ID NO: 2); (iii) an amino acid sequence with deletions, additions, or substitutions of one or several amino acids in SEQ ID NO: 1 or 2; and (iv) an amino acid sequence having 90% or more sequence identity to that of SEQ ID NO: 1 or 2.
    Type: Application
    Filed: May 3, 2019
    Publication date: September 19, 2019
    Inventors: Kiichi Kubota, Patrick Reid, Michinori Kohara, Keiichi Masuya, Masaki Ohuchi
  • Patent number: 10328143
    Abstract: Object of the present invention is to provide a hemagglutinin-binding peptide producing an anti-influenza virus effect higher than that of existing peptides. The present invention provides, for example, a hemagglutinin-binding peptide comprising a polypeptide having any of the following amino acid sequences (i) to (iv): (i) Thr-MeGly-Asp-MePhe-MePhe-Ser-MeSer-His-Tyr-Thr-Val-Pro-Arg (SEQ ID NO: 1); (ii) Arg-Val-Ser-MePhe-Thr-Tyr-MePhe-MeSer-Tyr-Thr-Pro-Ser (SEQ ID NO: 2); (iii) an amino acid sequence with deletions, additions, or substitutions of one or several amino acids in SEQ ID NO: 1 or 2; and (iv) an amino acid sequence having 90% or more sequence identity to that of SEQ ID NO: 1 or 2.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: June 25, 2019
    Assignees: PeptiDream Inc., Tokyo Metropolitan Institute of Medical Science
    Inventors: Kiichi Kubota, Patrick Reid, Michinori Kohara, Keiichi Masuya, Masaki Ohuchi
  • Publication number: 20170333549
    Abstract: Object of the present invention is to provide a hemagglutinin-binding peptide producing an anti-influenza virus effect higher than that of existing peptides. The present invention provides, for example, a hemagglutinin-binding peptide comprising a polypeptide having any of the following amino acid sequences (i) to (iv): (i) Thr-MeGly-Asp-MePhe-MePhe-Ser-MeSer-His-Tyr-Thr-Val-Pro-Arg (SEQ ID NO: 1); (ii) Arg-Val-Ser-MePhe-Thr-Tyr-MePhe-MeSer-Tyr-Thr-Pro-Ser (SEQ ID NO: 2); (iii) an amino acid sequence with deletions, additions, or substitutions of one or several amino acids in SEQ ID NO: 1 or 2; and (iv) an amino acid sequence having 90% or more sequence identity to that of SEQ ID NO: 1 or 2.
    Type: Application
    Filed: October 23, 2015
    Publication date: November 23, 2017
    Inventors: Kiichi Kubota, Patrick Reid, Michinori Kohara, Keiichi Masuya, Masaki Ohuchi
  • Patent number: 9556180
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 31, 2017
    Assignee: Novartis AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Robert Mah, Keiichi Masuya, Achim Schlapbach, Andrea Vaupel
  • Patent number: 9403827
    Abstract: The invention relates to compounds of formula (I): (I) as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of as MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: August 2, 2016
    Assignee: NOVARTIS AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Robert Mah, Keiichi Masuya, Achim Schlapbach, Andrea Vaupel
  • Patent number: 9365576
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: June 14, 2016
    Assignee: Novartis AG
    Inventors: Simona Cotesta, Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Robert Mah, Keiichi Masuya, Achim Schlapbach, Stefan Stutz, Andrea Vaupel
  • Publication number: 20150353563
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Inventors: Pascal FURET, Vito GUAGNANO, Philipp HOLZER, Joerg KALLEN, Robert MAH, Keiichi MASUYA, Achim SCHLAPBACH, Andrea VAUPEL
  • Publication number: 20150353551
    Abstract: The invention relates to compounds of formula (I): (I) as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of as MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Applicant: NOVARTIS AG
    Inventors: Pascal FURET, Vito GUAGNANO, Philipp HOLZER, Joerg KALLEN, Robert MAH, Keiichi MASUYA, Achim SCHLAPBACH, Andrea VAUPEL
  • Patent number: 9051279
    Abstract: The invention relates to substituted nitrogen containing bicyclic heterocycles of the formula (I) wherein Z is CH2 or N—R4 and X, R1, R2, R4, R6, R7 and n are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of MDM2 and/or MDM4, or variants thereof.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: June 9, 2015
    Assignee: Novartis AG
    Inventors: Joerg Berghausen, Nicole Buschmann, Pascal Furet, Francois Gessier, Joanna Hergovich Lisztwan, Philipp Holzer, Edgar Jacoby, Joerg Kallen, Keiichi Masuya, Carole Pissot Soldermann, Haixia Ren, Stefan Stutz
  • Patent number: 8969341
    Abstract: The invention relates to compounds of formula (I) as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 3, 2015
    Assignee: Novartis AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Robert Mah, Keiichi Masuya, Achim Schlapbach, Stefan Stutz, Andrea Vaupel
  • Publication number: 20140350010
    Abstract: The invention relates to compounds of formula (I) as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Application
    Filed: November 28, 2012
    Publication date: November 27, 2014
    Applicant: NOVARTIS AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Robert Mah, Keiichi Masuya, Achim Schlapbach, Stefan Stutz, Andrea Vaupel
  • Publication number: 20140343084
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Application
    Filed: July 10, 2014
    Publication date: November 20, 2014
    Inventors: Pascal FURET, Vito GUAGNANO, Philipp HOLZER, Joerg KALLEN, Lv LIAO, Robert MAH, Liang MAO, Keiichi MASUYA, Achim SCHLAPBACH, Stefan STUTZ, Andrea VAUPEL
  • Patent number: 8859535
    Abstract: The invention relates to compounds of formula (I): as defined in the application. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of MDM2 and/or MDM4, or variants thereof.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 14, 2014
    Assignee: Novartis AG
    Inventors: Nicole Buschmann, Pascal Furet, Philipp Holzer, Joerg Kallen, Keiichi Masuya, Stefan Stutz
  • Patent number: 8859586
    Abstract: The invention relates to compounds of formula (I): as defined in the application. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of MDM2 and/or MDM4, or variants thereof.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 14, 2014
    Assignee: Novartis AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Keiichi Masuya, Stefan Stutz
  • Publication number: 20140275158
    Abstract: The invention relates to compounds of formula (I): as defined in the application. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of MDM2 and/or MDM4, or variants thereof.
    Type: Application
    Filed: June 19, 2012
    Publication date: September 18, 2014
    Applicant: Novartis AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Keiichi Masuya, Stefan Stutz
  • Patent number: 8815926
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: August 26, 2014
    Assignee: Novartis AG
    Inventors: Pascal Furet, Vito Guagnano, Philipp Holzer, Joerg Kallen, Lv Liao, Robert Mah, Liang Mao, Keiichi Masuya, Achim Schlapbach, Stefan Stutz, Andrea Vaupel
  • Publication number: 20140135306
    Abstract: The invention relates to compounds of formula (I): as defined in the application. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of MDM2 and/or MDM4, or variants thereof.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 15, 2014
    Applicant: Novartis AG
    Inventors: Nicole Buschmann, Pascal Furet, Philipp Holzer, Joerg Kallen, Keiichi Masuya, Stefan Stutz
  • Publication number: 20140011798
    Abstract: The invention relates to compounds of formula (I): as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 9, 2014
    Applicant: NOVARTIS AG
    Inventors: Pascal FURET, Vito GUAGNANO, Philipp HOLZER, Joerg KALLEN, Lv LIAO, Robert MAH, Liang MAO, Keiichi MASUYA, Achim SCHLAPBACH, Stefan STUTZ, Andrea VAUPEL