Patents by Inventor Shojiro Yoshida

Shojiro Yoshida 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).

  • Patent number: 11510987
    Abstract: The present invention addresses the problem of providing an endocytosis enhancer comprising associates formed from a fluorescent protein. The fluorescent protein is preferably any one selected from the group consisting of a white fluorescent protein, a red fluorescent protein, a yellow fluorescent protein, a blue fluorescent protein and a green fluorescent protein. The endocytosis enhancer according to the present invention can enhance the cellular uptake of a drug, which is encapsulated in micelles each formed from a fluorescent-protein-supported carbosilane dendrimer, through endocytosis.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 29, 2022
    Assignees: Saitama University, QUARRYMEN & Co. Inc.
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Patent number: 11160877
    Abstract: The present invention relates to a targeting-type capsule for drug delivery systems. The present invention addresses the problem of providing a capsule for drug delivery systems by utilizing the reactivity of a thiol with an alkyl halide, wherein the capsule comprises a silole-containing carbosilane dendrimer and a labeling protein containing a target recognition site (e.g., green fluorescent protein), can include a biological polymer or another molecule therein, and can deliver the biological polymer or the like selectively into a target cell.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 2, 2021
    Assignees: Saitama University, QUARRYMEN & Co. Inc.
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Patent number: 10918726
    Abstract: The object of the present invention is to provide an aggregatable carrier material for drug delivery system and a micelle formed thereof. The present invention provides an aggregatable carrier material for drug delivery system, which is formed by utilizing the reaction between thiol group and alkyl halide. It is formed by using carbosilane dendrimers containing silole and labeled proteins such as green fluorescent protein in aqueous solvent or in mixed solvent of the aqueous solvent and organic solvent. The micelle composed of the material may incorporate compounds having a variety of molecular weight and biopolymers in the aqueous solvent.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 16, 2021
    Assignees: QUARRYMEN & Co. Inc., Saitama University
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Patent number: 10772973
    Abstract: The present invention is related to a targeted type shell for drug delivery system. The object of the present invention is to provide the targeted type shell for DDS, which comprises a carbosilane dendrimer containing a silole produced by which is formed by utilizing the reaction between thiol group and alkyl halide, and a targeted protein containing a labeled proteins such as green fluorescent protein with a target recognition site. The shell may incorporate compounds having a variety of molecular weight and biopolymers, and selectively deliver them into targeted cells.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: September 15, 2020
    Assignees: QUARRYMEN & Co. Inc., Saitama University
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Publication number: 20190358333
    Abstract: The present invention addresses the problem of providing an endocytosis enhancer comprising associates formed from a fluorescent protein. The fluorescent protein is preferably any one selected from the group consisting of a white fluorescent protein, a red fluorescent protein, a yellow fluorescent protein, a blue fluorescent protein and a green fluorescent protein. The endocytosis enhancer according to the present invention can enhance the cellular uptake of a drug, which is encapsulated in micelles each formed from a fluorescent-protein-supported carbosilane dendrimer, through endocytosis.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Publication number: 20190151467
    Abstract: The present invention relates to a targeting-type capsule for drug delivery systems. The present invention addresses the problem of providing a capsule for drug delivery systems by utilizing the reactivity of a thiol with an alkyl halide, wherein the capsule comprises a silole-containing carbosilane dendrimer and a labeling protein containing a target recognition site (e.g., green fluorescent protein), can include a biological polymer or another molecule therein, and can deliver the biological polymer or the like selectively into a target cell.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 23, 2019
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Publication number: 20180362718
    Abstract: The present invention is related to a targeted type shell for drug delivery system. The object of the present invention is to provide the targeted type shell for DDS, which comprises a carbosilane dendrimer containing a silole produced by which is formed by utilizing the reaction between thiol group and alkyl halide, and a targeted protein containing a labeled proteins such as green fluorescent protein with a target recognition site. The shell may incorporate compounds having a variety of molecular weight and biopolymers, and selectively deliver them into targeted cells.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 20, 2018
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita
  • Publication number: 20170281782
    Abstract: The object of the present invention is to provide an aggregatable carrier material for drug delivery system and a micelle formed thereof. The present invention provides an aggregatable carrier material for drug delivery system, which is formed by utilizing the reaction between thiol group and alkyl halide. It is formed by using carbosilane dendrimers containing silole and labeled proteins such as green fluorescent protein in aqueous solvent or in mixed solvent of the aqueous solvent and organic solvent. The micelle composed of the material may incorporate compounds having a variety of molecular weight and biopolymers in the aqueous solvent.
    Type: Application
    Filed: May 26, 2017
    Publication date: October 5, 2017
    Inventors: Miho Suzuki, Ken Hatano, Shojiro Yoshida, Yasuhiro Yamashita