Patents by Inventor Keiichiro Yagi

Keiichiro Yagi 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).

  • Thiosulfonate compound, reversible cationization agent for protein and/or peptide, and method for solubilization
    Patent number: 8653240
    Abstract: The object of the present invention is to provide a novel thiosulfonate compound, a reversible cationization agent for protein and/or peptide, which can reversibly cationize a wider range of proteins and peptides with high stability of quality and accuracy and which are useful for a high degree of purification and recovery, as well as, a method for solubilization for protein and/or peptide using the agent. The present invention is a thiosulfonate compound having three or more cations derived from a quaternary ammonium group within one molecule.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 18, 2014
    Assignee: National University Corporation Okayama University
    Inventors: Junichiro Futami, Hidenori Yamada, Go Kyuragi, Keiichiro Yagi
  • THIOSULFONATE COMPOUND, REVERSIBLE CATIONIZATION AGENT FOR PROTEIN AND/OR PEPTIDE, AND METHOD FOR SOLUBILIZATION
    Publication number: 20130096278
    Abstract: The object of the present invention is to provide a novel thiosulfonate compound, a reversible cationization agent for protein and/or peptide, which can reversibly cationize a wider range of proteins and peptides with high stability of quality and accuracy and which are useful for a high degree of purification and recovery, as well as, a method for solubilization for protein and/or peptide using the agent. The present invention is a thiosulfonate compound having three or more cations derived from a quaternary ammonium group within one molecule.
    Type: Application
    Filed: March 24, 2011
    Publication date: April 18, 2013
    Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
    Inventors: Junichiro Futami, Hidenori Yamada, Go Kyuragi, Keiichiro Yagi