Patents by Inventor Chang Joon Ro

Chang Joon Ro 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: 10499862
    Abstract: The present invention relates to a panoramic X-ray imaging apparatus capable of obtaining more accurate panoramic X-ray images while minimizing the rotation of a rotation arm, the panoramic X-ray imaging apparatus includes at least one X-ray source configured to irradiate X-rays and an X-ray sensor configured to receive the X-rays, a rotating arm configured to position the X-ray sensor and the X-ray source to face each other, a driver configured to rotate the rotating arm about a rotating shaft, a guide configured to provide directions for moving the X-ray sensor or the X-ray source, and wherein the at least one X-ray source is of an electric field emission type adopting an emitter of a nanostructure material and the X-ray source or the X-ray sensor is relatively movable along the guide in conjunction with a movement of the rotating arm.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: December 10, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Chang-Joon Ro
  • Publication number: 20170231582
    Abstract: The present invention relates to a panoramic X-ray imaging apparatus capable of obtaining more accurate panoramic X-ray images while minimizing the rotation of a rotation arm, the panoramic X-ray imaging apparatus includes at least one X-ray source configured to irradiate X-rays and an X-ray sensor configured to receive the X-rays, a rotating arm configured to position the X-ray sensor and the X-ray source to face each other, a driver configured to rotate the rotating arm about a rotating shaft, a guide configured to provide directions for moving the X-ray sensor or the X-ray source, and wherein the at least one X-ray source is of an electric field emission type adopting an emitter of a nanostructure material and the X-ray source or the X-ray sensor is relatively movable along the guide in conjunction with a movement of the rotating arm.
    Type: Application
    Filed: October 13, 2015
    Publication date: August 17, 2017
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Chang-Joon RO
  • Patent number: 7995704
    Abstract: Disclosed herein is a panoramic X-ray photographing apparatus and a method for photographing using the same. The present invention relates to the panoramic X-ray photographing apparatus capable of conducting a panoramic photographing without generating X-ray in neck cervical vertebrae part employing a rotary arm driven in 3-axis direction. In case of scanning the neck cervical vertebrae part, a photographing can be conduct without X-ray. As a result, it is possible to prevent an image acquired by the neck cervical vertebrae part from being unclear. Also, an angle of incidence of X-ray at a photographing point can be controlled to be vertical, so that an image distortion phenomenon can be prevented. Furthermore, tempromandibular joint can be photographed at optimum enlargement ratio, thereby acquiring clear image.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: August 9, 2011
    Assignees: Vatech Co., Ltd., Vatech Ewoo Holdings Co., Ltd.
    Inventors: Chang Joon Ro, Tae Woo Kim, Hyo Sung Cho, Sung il Choi
  • Patent number: 7961841
    Abstract: The present invention relates to an X-ray photographing apparatus that is capable of being automatically transformed to panoramic, CT, and cephalometric photographing apparatuses having corresponding modes in accordance with the mounting or demounting of a panoramic sensor, a CT sensor, or a cephalometric sensor thereon/therefrom, thereby at once performing the photographing for the images being the corresponding modes.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 14, 2011
    Assignees: Vatech Co., Ltd., Vatech Ewoo Holdings Co., Ltd.
    Inventors: Chang Joon Ro, Tae Woo Kim
  • Publication number: 20110044517
    Abstract: The present invention relates to a panoramic image acquisition apparatus and method, and, more particularly, to a multilayer panoramic image acquisition apparatus and method, which is capable of acquiring images of a plurality of image layers at a single time by synchronizing sections where X-rays are radiated onto the plurality of image layers located in the areas of interest of a subject.
    Type: Application
    Filed: January 15, 2009
    Publication date: February 24, 2011
    Inventor: CHANG JOON RO
  • Publication number: 20100195786
    Abstract: The present invention relates to an X-ray photographing apparatus that is capable of being automatically transformed to panoramic, CT, and cephalometric photographing apparatuses having corresponding modes in accordance with the mounting or demounting of a panoramic sensor, a CT sensor, or a cephalometric sensor thereon/therefrom, thereby at once performing the photographing for the images being the corresponding modes.
    Type: Application
    Filed: October 10, 2007
    Publication date: August 5, 2010
    Inventors: Chang Joon Ro, Tae Woo Kim
  • Publication number: 20100054403
    Abstract: Disclosed herein is a panoramic X-ray photographing apparatus and a method for photographing using the same. The present invention relates to the panoramic X-ray photographing apparatus capable of conducting a panoramic photographing without generating X-ray in neck cervical vertebrae part employing a rotary arm driven in 3-axis direction. In case of scanning the neck cervical vertebrae part, a photographing can be conduct without X-ray. As a result, it is possible to prevent an image acquired by the neck cervical vertebrae part from being unclear. Also, an angle of incidence of X-ray at a photographing point can be controlled to be vertical, so that an image distortion phenomenon can be prevented. Furthermore, tempromandibular joint can be photographed at optimum enlargement ratio, thereby acquiring clear image.
    Type: Application
    Filed: February 22, 2007
    Publication date: March 4, 2010
    Inventors: Chang Joon Ro, Tae Woo Kim, Hyo Sung Cho, Sung il Choi