Patents by Inventor Ryohei KAJINO

Ryohei KAJINO 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).

  • Nucleoside derivative and use thereof
    Patent number: 11780874
    Abstract: A nucleoside that is more practical for RNA pharmaceuticals and other applications and use thereof is represented by formula (1) or (2) below, or a salt thereof: (In formula (1), R1 represents a hydrogen atom, a hydroxyl group, a hydroxyl group in which a hydrogen atom is substituted by an alkyl group or alkenyl group, or a protected group, and in formula (2), X represents a halogen atom. In formula (1) and formula (2), R2 and R3 may be the same or different, and each represents a hydrogen atom etc., R4 represents NHR7 (in which R7 represents a hydrogen atom etc., and B represent represents any of a purine-9-yl group, 2-oxo-pyrimidin-1-yl group, substituted purine-9-yl group or substituted 2-oxo-pyrimidin-1-yl group).
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 10, 2023
    Assignees: YAMASA CORPORATION, NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
    Inventors: Yoshihito Ueno, Yusuke Maeda, Ryohei Kajino
  • NUCLEOSIDE DERIVATIVE AND USE THEREOF
    Publication number: 20200385419
    Abstract: A nucleoside that is more practical for RNA pharmaceuticals and other applications and use thereof is represented by formula (1) or (2) below, or a salt thereof: (In formula (1), R1 represents a hydrogen atom, a hydroxyl group, a hydroxyl group in which a hydrogen atom is substituted by an alkyl group or alkenyl group, or a protected group, and in formula (2), X represents a halogen atom. In formula (1) and formula (2), R2 and R3 may be the same or different, and each represents a hydrogen atom etc., R4 represents NHR7 (in which R7 represents a hydrogen atom etc., and B represent represents any of a purine-9-yl group, 2-oxo-pyrimidin-1-yl group, substituted purine-9-yl group or substituted 2-oxo-pyrimidin-1-yl group).
    Type: Application
    Filed: October 31, 2018
    Publication date: December 10, 2020
    Applicants: YAMASA CORPORATION, National University Corporation Tokai National Higher Education and Research System
    Inventors: Yoshihito UENO, Yusuke MAEDA, Ryohei KAJINO