Patents by Inventor Junsuke Igarashi

Junsuke Igarashi 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).

  • Cyclobutyl purine derivative, angiogenesis promoting agent, lumen formation promoting agent, neurocyte growth promoting agent, and drug
    Patent number: 9273050
    Abstract: Provided is a compound having at least one selected from the group consisting of cell growth promoting activity, angiogenesis promoting activity, lumen formation promoting activity, cell migration promoting activity, and neurocyte growth promoting activity, which is a chemically stable low-molecular-weight substance that has high absorbability and can be supplied stably at a low cost because of its low molecular weight. A cyclobutyl purine derivative, a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof according to the present invention is a cyclobutyl purine derivative represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 1, 2016
    Assignee: National University Corporation Kagawa University
    Inventors: Ikuko Tsukamoto, Ryoji Konishi, Masaaki Tokuda, Yasuo Kubota, Tokumi Maruyama, Hiroaki Kosaka, Junsuke Igarashi
  • CYCLOBUTYL PURINE DERIVATIVE, ANGIOGENESIS PROMOTING AGENT, LUMEN FORMATION PROMOTING AGENT, NEUROCYTE GROWTH PROMOTING AGENT, AND DRUG
    Publication number: 20110230659
    Abstract: Provided is a compound having at least one selected from the group consisting of cell growth promoting activity, angiogenesis promoting activity, lumen formation promoting activity, cell migration promoting activity, and neurocyte growth promoting activity, which is a chemically stable low-molecular-weight substance that has high absorbability and can be supplied stably at a low cost because of its low molecular weight. A cyclobutyl purine derivative, a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof according to the present invention is a cyclobutyl purine derivative represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 22, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Ikuko Tsukamoto, Ryoji Konishi, Masaaki Tokuda, Yasuo Kubota, Tokumi Maruyama, Hiroaki Kosaka, Junsuke Igarashi