Patents by Inventor Ko Kikuzato

Ko Kikuzato 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).

  • Publication number: 20230127046
    Abstract: A compound represented by the general formula (I) given below or a pharmacologically acceptable salt thereof has been found to have a strong G9a inhibitory effect. The compound (I) or the pharmacologically acceptable salt thereof inhibits G9a and thereby has high usefulness for the treatment, prevention or suppression of various pathological conditions (proliferative disease such as cancer, ?-globin abnormality, fibrosis, pain, neurodegenerative disease, Prader-Willi syndrome, malaria, viral infection, myopathy, autism, etc.).
    Type: Application
    Filed: November 26, 2020
    Publication date: April 27, 2023
    Applicants: RIKEN, TOKYO UNIVERSITY OF PHARMACY AND LIFE SCIENCES, MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Tatsunobu SUMIYA, Yosuke NISHIGAYA, Ryosuke NAMIE, Noriaki HASHIMOTO, Akihiro ITO, Fumiyuki SHIRAI, Ko KIKUZATO, Minoru YOSHIDA
  • Publication number: 20230024778
    Abstract: The strigolactone receptor inhibitor for plants contains at least one kind of triazole urea compounds represented by the following formula (I) as an active ingredient. It can be applicable to an agricultural composition; a method for using the agricultural composition as, for example, a branching enhancer for plants; a germination inhibitor for Striga seeds, the germination inhibitor containing the triazole urea compound; and a novel triazole urea compound that is useful as a strigolactone receptor inhibitor for plants. In the formula, A represents a group represented by (A-1) or (A-2). R1 and R2 represent a hydrogen atom and so forth. R3 and R4 represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms and so forth. R3 and R4 may form a ring together.
    Type: Application
    Filed: March 2, 2018
    Publication date: January 26, 2023
    Applicant: The University of Tokyo
    Inventors: Tadao Asami, Hidemitsu Nakamura, Ko Kikuzato, Wenqian Hu
  • Publication number: 20230017537
    Abstract: The present invention aims to provide a novel compound having a high mPTP-opening inhibitory activity and/or a useful therapeutic effect on various diseases. An aspect of the present invention relates to a mitochondrial permeability transition pore (mPTP)-opening inhibitor, a medicament or a pharmaceutical composition comprising a compound represented by formula (I), wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are the same as defined in the specification and the claims, a stereoisomer thereof, a prodrug thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, as an active ingredient. Another aspect of the present invention relates to a compound represented by formula (Ia), wherein R1a, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are the same as defined in the specification and the claims, a stereoisomer thereof, a prodrug thereof, or a salt thereof, or a solvate thereof.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 19, 2023
    Applicant: RIKEN
    Inventors: Tadafumi KATO, Mie SAKASHITA, Hirochika KAWAKAMI, Ko KIKUZATO, Fumiyuki SHIRAI
  • Patent number: 9259000
    Abstract: An object of the present invention is to provide an auxin biosynthesis inhibitor superior to L-AOPP. The object can be attained by a compound represented by general formula (I): wherein, R1 to R5 and X are the same as defined in the specification or a salt or solvate thereof.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 16, 2016
    Assignees: Riken, Public University Corporation Yokohama City University
    Inventors: Yukihisa Shimada, Ko Kikuzato, Megumi Narukawa, Tadao Asami, Kazuo Soeno
  • Publication number: 20140031230
    Abstract: An object of the present invention is to provide an auxin biosynthesis inhibitor superior to L-AOPP. The object can be attained by a compound represented by general formula (I): wherein, R1 to R5 and X are the same as defined in the specification or a salt or solvate thereof.
    Type: Application
    Filed: February 28, 2012
    Publication date: January 30, 2014
    Inventors: Yukihisa Shimada, Ko Kikuzato, Megumi Narukawa, Tadao Asami, Kazuo Soeno