Patents by Inventor Hisako IBARAKI

Hisako IBARAKI 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).

  • Composition for delivering nucleic acid and nucleic acid-containing composition
    Patent number: 11345914
    Abstract: This is to provide a composition for delivering a nucleic acid and a nucleic acid-containing composition which ensure stability of a nucleic acid drug, have a high intracellular introduction rate, can efficiently express the function of a nucleic acid drug, and have low cytotoxicity. Disclosed is a composition for delivering a nucleic acid and a nucleic acid-containing composition each comprises a block copolymer in which a polyethylene glycol segment and a hydrophobic polyester segment are linked, and a peptide having 4 to 30 residues containing at least one selected from the group consisting of arginine and lysine.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: May 31, 2022
    Assignee: TOKYO UNIVERSITY OF PHARMACY AND LIFE SCIENCES
    Inventors: Takanori Kanazawa, Yuuki Takashima, Hisako Ibaraki, Shunsuke Shiraishi, Ei Nakata, Yusuke Iriyama, Keiichiro Otsuka
  • NUCLEIC ACID DELIVERY COMPOSITION, AND NUCLEIC ACID-CONTAINING COMPOSITION
    Publication number: 20210115440
    Abstract: This is to provide a composition for delivering a nucleic acid and a nucleic acid-containing composition which ensure stability of a nucleic acid drug, have a high intracellular introduction rate, can efficiently express the function of a nucleic acid drug, and have low cytotoxicity. Disclosed is a composition for delivering a nucleic acid and a nucleic acid-containing composition each comprises a block copolymer in which a polyethylene glycol segment and a hydrophobic polyester segment are linked, and a peptide having 4 to 30 residues containing at least one selected from the group consisting of arginine and lysine.
    Type: Application
    Filed: July 11, 2018
    Publication date: April 22, 2021
    Applicant: TOKYO UNIVERSITY OF PHARMACY AND LIFE SCIENCES
    Inventors: Takanori KANAZAWA, Yuuki TAKASHIMA, Hisako IBARAKI, Shunsuke SHIRAISHI, Ei NAKATA, Yusuke IRIYAMA, Keiichiro OTSUKA