Patents by Inventor Tsukasa Chida

Tsukasa Chida 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).

  • NOVEL COPOLYMER
    Publication number: 20240092953
    Abstract: The present invention provides a novel copolymer available for a drug delivery technique. More particularly, a novel copolymer for a drug delivery carrier targeting a tumor is provided. The present invention relates to a copolymer comprising structural units represented by the following formulas (A), (B), and (C): wherein R1, R2, and R3 are the same or different and represent a hydrogen atom or a C1-3 alkyl group, R4 represents a C1-3 alkyl group, R5 represents a hydrogen atom, a C1-18 alkyl group, a 3- to 8-membered cycloalkyl group optionally having a substituent, an adamantyl group, a C6-18 aryl group optionally having a substituent, or a 5- to 10-membered heteroaryl group optionally having a substituent, X1, X2, and X3 are the same or different and represent an oxygen atom, a sulfur atom, or N—R7, R6 represents a hydrogen atom, a leaving group, or a linker, R7 represents a hydrogen atom or a C1-3 alkyl group, m represents an integer of 1 to 100, and n represents an integer of 0 to 3.
    Type: Application
    Filed: February 7, 2022
    Publication date: March 21, 2024
    Applicant: KOWA COMPANY, LTD.
    Inventors: Ryo KANAYA, Kenichi SUZUKI, Tsukasa CHIDA, Nobuhiro FUJIMAKI, Marina ECHIGO, Seiji MIURA
  • Micelle containing epirubicin-complexed block copolymer and anti-cancer agent, and pharmaceutical composition containing said micelle applicable to treatment of cancer, resistant cancer or metastatic cancer
    Patent number: 10220026
    Abstract: The problem addressed by the present invention is to develop a pharmaceutical having therapeutic efficacy against epirubicin-resistant tumors. The present invention provides a micelle having an anti-cancer agent disposed inside the core of the micelle formed by an epirubicin-conjugated copolymer.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: March 5, 2019
    Assignees: THE UNIVERSITY OF TOKYO, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Hiroaki Kinoh, Kazunori Kataoka, Horacio Cabral, Yutaka Miura, Shigeto Fukushima, Nobuhiro Nishiyama, Tsukasa Chida
  • MICELLE CONTAINING EPIRUBICIN-COMPLEXED BLOCK COPOLYMER AND ANTI-CANCER AGENT, AND PHARMACEUTICAL COMPOSITION CONTAINING SAID MICELLE APPLICABLE TO TREATMENT OF CANCER, RESISTANT CANCER OR METASTATIC CANCER
    Publication number: 20170258922
    Abstract: The problem addressed by the present invention is to develop a pharmaceutical having therapeutic efficacy against epirubicin-resistant tumors. The present invention provides a micelle having an anti-cancer agent disposed inside the core of the micelle formed by an epirubicin-conjugated copolymer.
    Type: Application
    Filed: August 11, 2015
    Publication date: September 14, 2017
    Inventors: Hiroaki Kinoh, Kazunori Kataoka, Horacio Cabral, Yutaka Miura, Shigeto Fukushima, Nobuhiro Nishiyama, Tsukasa Chida