Patents by Inventor Shinya TAMAGAWA

Shinya TAMAGAWA 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 CATIONIC LIPID HAVING CYSTINE SKELETON
    Publication number: 20230127080
    Abstract: The present invention provides, a cationic lipid represented by the formula (1) (wherein each symbol is as defined in the specification), a lipid membrane structure using the aforementioned cationic lipid, a nucleic acid-introducing agent using the aforementioned cationic lipid, and a method for introducing a nucleic acid by using the aforementioned nucleic acid-introducing agent.
    Type: Application
    Filed: March 19, 2021
    Publication date: April 27, 2023
    Applicants: NOF CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Shinya TAMAGAWA, Kota TANGE, Yuta NAKAI, Masamichi TAMADA, Hidetaka AKITA, Hiroki TANAKA, Yu SAKURAI
  • LIPID NANOPARTICLE LYOPHILIZED COMPOSITION
    Publication number: 20220354793
    Abstract: A lyophilized composition capable of encapsulating any nucleic acid with high efficiency and easily is provided. A lyophilized composition of lipid nanoparticles not containing a nucleic acid but containing an ionic lipid, a sterol, a PEG lipid, an acidic buffer component that shows a buffering action at pH 1-6, and a cryoprotectant, wherein a weight ratio of the cryoprotectant and a total lipid is 10:1-1000:1.
    Type: Application
    Filed: September 25, 2020
    Publication date: November 10, 2022
    Applicants: NOF CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Kota TANGE, Yuta NAKAI, Shinya TAMAGAWA, Sakura TANEICHI, Hidetaka AKITA, Hiroki TANAKA, Daiki SHIRANE, Shinya HAGIWARA
  • CATIONIC LIPID EXHIBITING IMPROVED INTRACELLULAR DYNAMICS
    Publication number: 20220192981
    Abstract: The invention provides a cationic lipid, a lipid membrane structure containing same, and use thereof. The cationic lipid is represented by the formula (1) wherein R1a, R1b, R2a, R2b, R3a, R3b, Xa, Xb, Yb, Za, and Zb are as defined in the specification.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Applicants: NOF CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Yuta NAKAI, Kota TANGE, Hiroki YOSHIOKA, Shinya TAMAGAWA, Hidetaka AKITA, Hiroki TANAKA, Nae TAKATA, Manami KONISHI, Tatsunari TAKAHASHI
  • Hydrophilic polymer derivative having self-immolative acetal linker and conjugate using same
    Patent number: 11319408
    Abstract: To provide a hydrophilic polymer derivative having a novel linker technique which is able to from a hydrophilic polymer pro-drug of a drug containing an amino group or the like in order to overcome the restrictions of conventional hydrophilic polymer pro-drugs.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 3, 2022
    Assignee: NOF CORPORATION
    Inventors: Takuma Tsubusaki, Shinya Tamagawa
  • NOVEL CATIONIC LIPID EXHIBITING IMPROVED INTRACELLULAR DYNAMICS
    Publication number: 20210023008
    Abstract: The invention provides a cationic lipid, a lipid membrane structure containing same, and use thereof. The cationic lipid is represented by the formula (1) wherein R1a, R1b, R2a, R2b, R3a, R3b, Xa, Xb, Ya, Yb, Za, and Zb are as defined in the specification.
    Type: Application
    Filed: March 25, 2019
    Publication date: January 28, 2021
    Applicants: NOF CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Yuta NAKAI, Kota TANGE, Hiroki YOSHIOKA, Shinya TAMAGAWA, Hidetaka AKITA, Hiroki TANAKA, Nae TAKATA, Manami KONISHI, Tatsunari TAKAHASHI
  • HYDROPHILIC POLYMER DERIVATIVE HAVING SELF-IMMOLATIVE ACETAL LINKER AND CONJUGATE USING SAME
    Publication number: 20200010620
    Abstract: To provide a hydrophilic polymer derivative having a novel linker technique which is able to from a hydrophilic polymer pro-drug of a drug containing an amino group or the like in order to overcome the restrictions of conventional hydrophilic polymer pro-drugs.
    Type: Application
    Filed: March 22, 2018
    Publication date: January 9, 2020
    Applicant: NOF CORPORATION
    Inventors: Takuma TSUBUSAKI, Shinya TAMAGAWA