Patents by Inventor Yui Sudaka

Yui Sudaka 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).

  • Stable production of virulent enterovirus 71 and use thereof
    Patent number: 11339376
    Abstract: Provided is a host cell for stably propagating a virulent hand, foot and mouth disease virus, the host cell expressing no heparan sulfate and overexpressing primate scavenger receptor class B member 2 (SCARB2). Also provided is a method for screening for an anti-hand, foot and mouth disease virus vaccine or an anti-hand, foot and mouth disease virus drug using a stably cultured virulent hand, foot and mouth disease virus.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: May 24, 2022
    Assignee: Tokyo Metropolitan Institute of Medical Science
    Inventors: Satoshi Koike, Kyousuke Kobayashi, Yui Sudaka, Ayumi Imura
  • Water soluble O-glycosyl flavonoid compositions and methods for preparing same
    Patent number: 11110109
    Abstract: A water-soluble composition including an O-glycosyl flavonoid compound, L-arginine, a sugar alcohol, and ascorbic acid or an alkali salt of ascorbic acid. The O-glycosyl flavonoid compound is rutin, isoquercitrin, or hesperidin, and a molar ratio between the O-glycosyl flavonoid compound and the sugar alcohol is 1:4.0-12.0. Also provided is a method for making the above-described water-soluble composition by combining the O-glycosyl flavonoid compound, L-arginine, the sugar alcohol, and ascorbic acid or an alkali salt thereof to form a mixture, and heating it at 110° C.-140° C. to melt the mixture.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: September 7, 2021
    Assignee: ALPS Pharmaceutical Ind. Co., Ltd.
    Inventors: Naoto Yamaguchi, Yui Sudaka, Mitsunori Ono
  • WATER SOLUBLE O-GLYCOSYL FLAVONOID COMPOSITIONS AND METHODS FOR PREPARING SAME
    Publication number: 20210113599
    Abstract: A water-soluble composition including an O-glycosyl flavonoid compound, L-arginine, a sugar alcohol, and ascorbic acid or an alkali salt of ascorbic acid. The O-glycosyl flavonoid compound is rutin, isoquercitrin, or hesperidin, and a molar ratio between the O-glycosyl flavonoid compound and the sugar alcohol is 1:4.0-12.0. Also provided is a method for making the above-described water-soluble composition by combining the O-glycosyl flavonoid compound, L-arginine, the sugar alcohol, and ascorbic acid or an alkali salt thereof to form a mixture, and heating it at 110° C.-140° C. to melt the mixture.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 22, 2021
    Inventors: Naoto Yamaguchi, Yui Sudaka, Mitsunori Ono
  • STABLE PRODUCTION OF VIRULENT ENTEROVIRUS 71 AND USE THEREOF
    Publication number: 20200032222
    Abstract: Provided is a host cell for stably propagating a virulent hand, foot and mouth disease virus, the host cell expressing no heparan sulfate and overexpressing primate scavenger receptor class B member 2 (SCARB2). Also provided is a method for screening for an anti-hand, foot and mouth disease virus vaccine or an anti-hand, foot and mouth disease virus drug using a stably cultured virulent hand, foot and mouth disease virus.
    Type: Application
    Filed: March 27, 2018
    Publication date: January 30, 2020
    Inventors: Satoshi Koike, Kyousuke Kobayashi, Yui Sudaka, Ayumi Imura