Patents by Inventor Changsoon Hwang

Changsoon Hwang 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: 10391233
    Abstract: Disclosed is a drug delivery kit, including an apparatus for preparing a drug delivery system, which includes therein a drug carrier in a gel phase or a solid phase under the airtight condition, and has therein a mixing space configured such that a drug for forming a drug delivery system with the drug carrier is injected from the outside and is mixed with the drug carrier, and a syringe for injecting the drug into the apparatus for preparing a drug delivery system. Also, an apparatus for preparing a drug delivery system, which can be applied to the drug delivery kit, and a method of preparing a drug delivery system using the apparatus are provided. The drug delivery system can be easily prepared on site, whereby the drug can be delivered in vivo.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 27, 2019
    Assignee: TGEL BIO CO., LTD.
    Inventors: Changsoon Hwang, Sun Jong Kim, Han Weon Cho, Sunhee Ham, Hyesook Chung
  • Publication number: 20170274137
    Abstract: Disclosed is a drug delivery kit, including an apparatus for preparing a drug delivery system, which includes therein a drug carrier in a gel phase or a solid phase under the airtight condition, and has therein a mixing space configured such that a drug for forming a drug delivery system with the drug carrier is injected from the outside and is mixed with the drug carrier, and a syringe for injecting the drug into the apparatus for preparing a drug delivery system. Also, an apparatus for preparing a drug delivery system, which can be applied to the drug delivery kit, and a method of preparing a drug delivery system using the apparatus are provided. The drug delivery system can be easily prepared on site, whereby the drug can be delivered in vivo.
    Type: Application
    Filed: April 19, 2016
    Publication date: September 28, 2017
    Inventors: Changsoon HWANG, Sun Jong KIM, Han Weon CHO, Sunhee HAM, Hyesook CHUNG
  • Patent number: 7138981
    Abstract: The present invention relates to a haptic joystick system that is used with a computer system. The system according to the present invention includes the mechanism comprising the first link work and the second link work that respectively conduct 3 degree-of-freedom independently and are serially connected to each other. Therefore the said mechanism conducts 6 degree-of-freedom. The said mechanism is provided at its base plane with sensors and actuators, whereby not being affected by the inertia of the sensors and the actuators. Also, in the system according to the present invention, the first link work conducts 3 degree-of-freedom among the overall 6 degree-of-freedom that are frequently used in its application, and the second link work conducts another 3 degree-of-freedom. Thereby, the system according to the present invention can achieve the enhanced performance related to the energy effectiveness and the controllability.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: November 21, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Munsang Kim, Dongseok Ryu, Changhyun Cho, Changsoon Hwang
  • Publication number: 20060066574
    Abstract: The present invention relates to a haptic joystick system that is used with a computer system. The system according to the present invention includes the mechanism comprising the first link work and the second link work that respectively conduct 3 degree-of-freedom independently and are serially connected to each other. Therefore the said mechanism conducts 6 degree-of-freedom. The said mechanism is provided at its base plane with sensors and actuators, whereby not being affected by the inertia of the sensors and the actuators. Also, in the system according to the present invention, the first link work conducts 3 degree-of-freedom among the overall 6 degree-of-freedom that are frequently used in its application, and the second link work conducts another 3 degree-of-freedom. Thereby, the system according to the present invention can achieve the enhanced performance related to the energy effectiveness and the controllability.
    Type: Application
    Filed: October 20, 2003
    Publication date: March 30, 2006
    Inventors: Munsang Kim, Dongseok Ryu, Changhyun Cho, Changsoon Hwang