Patents by Inventor Hyojin Cha

Hyojin Cha 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).

  • 18F-labeled precursor of PET radioactive medical supplies, and preparation method thereof
    Patent number: 9505799
    Abstract: The present invention relates to a precursor of positron emission tomography (PET) radioactive medical supplies, a preparation method thereof, and an application thereof, and more specifically, to a precursor having a tetravalent organic salt leaving group, a preparation method, and a method for preparing desired PET radioactive medical supplies in a high radiochemical yield within a short preparation time by introducing 18F using the same through a single step. The precursor having a tetravalent organic salt leaving group of the present invention can simplify the known complex multistep preparation of radioactive medical supplies into a single step, can save production costs because an excessive amount of a phase transfer catalyst is not required, facilitates separation of a compound after reaction, and enables rapid reaction velocity. The features are appropriate for the mass production of PET radioactive medical supplies by an automated synthesis system.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 29, 2016
    Assignee: Futurechem Co., Ltd.
    Inventors: Dae-Yoon Chi, Byoung-Se Lee, Chansoo Park, Min-Hyung Lee, Hyojin Cha, Woojin Cho, Heewon Kang, Kyunghun Kim
  • 18F-LABELED PRECURSOR OF PET RADIOACTIVE MEDICAL SUPPLIES, AND PREPARATION METHOD THEREOF
    Publication number: 20140194620
    Abstract: The present invention relates to a precursor of positron emission tomography (PET) radioactive medical supplies, a preparation method thereof, and an application thereof, and more specifically, to a precursor having a tetravalent organic salt leaving group, a preparation method, and a method for preparing desired PET radioactive medical supplies in a high radiochemical yield within a short preparation time by introducing 18F using the same through a single step. The precursor having a tetravalent organic salt leaving group of the present invention can simplify the known complex multistep preparation of radioactive medical supplies into a single step, can save production costs because an excessive amount of a phase transfer catalyst is not required, facilitates separation of a compound after reaction, and enables rapid reaction velocity. The features are appropriate for the mass production of PET radioactive medical supplies by an automated synthesis system.
    Type: Application
    Filed: May 11, 2012
    Publication date: July 10, 2014
    Applicant: FUTURECHEM CO., LTD.
    Inventors: Dae-Yoon Chi, Byoung-Se Lee, Chansoo Park, Min-Hyung Lee, Hyojin Cha, Woojin Cho, Heewon Kang, Kyunghun Kim