Patents by Inventor Seiji Shirakawa

Seiji Shirakawa 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).

  • Synthetic Polymer and Method for Producing Same, Molding Material, and Molded Body
    Publication number: 20230128695
    Abstract: An aspect of the present disclosure provides a synthetic polymer containing a first segment containing a polypeptide skeleton and one or a plurality of second segments bonded directly to the first segment, in which the second segment contains a molecular group having a plasticizing function for the polypeptide skeleton.
    Type: Application
    Filed: March 16, 2021
    Publication date: April 27, 2023
    Applicant: Spiber Inc.
    Inventors: Kazuki Sakata, Nao Kitahara, Seiji Shirakawa, Kentaro Takahashi, Leona Muto, Oliver Syed Shafaat, Hideki Kagata
  • Silacycle compounds and methods of use thereof
    Patent number: 8642798
    Abstract: The present invention relates to a diastereomeric mixture of Silacycle Compounds and methods for using the diastereomeric mixture of Silacycle Compounds for stereoselective synthesis.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: February 4, 2014
    Assignee: The Trustee of Columbia University in the City of New York
    Inventors: James Lincoln Leighton, Richard Berger, Seiji Shirakawa, Gregory T. Notte
  • Silacycle compounds and methods of use thereof
    Publication number: 20080167468
    Abstract: The present invention relates to a diastereomeric mixture of Silacycle Compounds and methods for using the diastereomeric mixture of Silacycle Compounds for stereoselective synthesis.
    Type: Application
    Filed: June 6, 2007
    Publication date: July 10, 2008
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: James Lincoln Leighton, Richard Berger, Seiji Shirakawa, Gregory T. Notte