Patents by Inventor Cheong-Hwan Lim

Cheong-Hwan Lim 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).

  • Collimator for radiation generating apparatus
    Patent number: 11311253
    Abstract: The present disclosure relates to a collimator for radiation generating apparatus, attached to a radiation generating apparatus, the collimator comprising: a frame fixed to the radiation generating apparatus and formed in a ring shape; and a shielding adjustment part provided with a plurality of shielding wings, one end of the shielding wings being hinged to the frame such that, when rotated, the other end of the shielding wings enters into a center of the frame, and the each one end of the shielding wings being disposed to be spaced apart on the frame, wherein the shielding wing is made of a radiation shielding metal. Accordingly, it is possible to easily adjust the diameter of radiation field made in a circular shape.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: April 26, 2022
    Assignee: HANSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION
    Inventors: Hong-Ryang Jung, Cheong-Hwan Lim, In Seog Kang, Ki-Jeong Kim
  • COLLIMATOR FOR RADIATION GENERATING APPARATUS
    Publication number: 20210153822
    Abstract: The present disclosure relates to a collimator for radiation generating apparatus, attached to a radiation generating apparatus, the collimator comprising: a frame fixed to the radiation generating apparatus and formed in a ring shape; and a shielding adjustment part provided with a plurality of shielding wings, one end of the shielding wings being hinged to the frame such that, when rotated, the other end of the shielding wings enters into a center of the frame, and the each one end of the shielding wings being disposed to be spaced apart on the frame, wherein the shielding wing is made of a radiation shielding metal. Accordingly, it is possible to easily adjust the diameter of radiation field made in a circular shape.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 27, 2021
    Inventors: Hong-Ryang JUNG, Cheong-Hwan LIM, In Seog KANG, Ki-Jeong KIM
  • Radiation shield
    Patent number: 10497483
    Abstract: Disclosed is a radiation shield for a radiotherapy apparatus including guide grooves formed at widthwise opposite ends of a bed in a lengthwise direction, the radiation shield including a shielding body including a sheet-type lower shielding portion made of a radiation shielding material and sheet-type upper shielding portions extending from widthwise opposite ends of the lower shielding portion, respectively, and made of a radiation shielding material; and guide members formed at the widthwise opposite ends of the lower shielding portion on one surface of the lower shielding portion and inserted into the guide grooves of the radiotherapy apparatus, respectively. Therefore, the disclosed radiation shield can demonstrate an excellent radiation shielding effect and is easily manageable during radiotherapy treatment.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: December 3, 2019
    Assignees: HANSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION
    Inventors: Hong-Ryang Jung, Cheong-Hwan Lim, Ki-Jeong Kim