Patents Assigned to Vatech Co., Ltd
  • Publication number: 20240064886
    Abstract: An X-ray source driving circuit and an X-ray generation device using the same are proposed. An objective of the present disclosure is to provide an X-ray source driving circuit having a low possibility of dielectric breakdown and capable of reducing an insulation distance between high voltage circuits, and to provide an X-ray generation device of which the size and weight may be reduced by using the same. To this end, the X-ray generation device includes an X-ray source including a cathode electrode, an anode electrode, and a gate electrode and configured to generate X-rays with a driving voltage applied to each electrode, a first voltage converter including a first transformer and at least one voltage multiplier for multiplying a first voltage output from the first transformer, and a second voltage converter including a second transformer and a voltage multiplier for multiplying a second voltage output from the second transformer.
    Type: Application
    Filed: December 31, 2021
    Publication date: February 22, 2024
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Seung Hun SHIN
  • Patent number: 11783482
    Abstract: The disclosure is related to a panoramic radiography device. The panoramic radiography device may include an image processor and a viewer module. The image processor may be configured to produce a primary panoramic image using a first image layer and a secondary panoramic image using a secondary image layer based on a plurality of image frame data, wherein the second image layer is different from the first image layer in at least one of a number, a position, a shape, an angle, and a thickness. The viewer module may be configured to i) provide a graphic user interface having a primary display area and a secondary display area arranged at a predetermined position of the primary display area, ii) display the primary panoramic image at the primary display area, and iii) display a part of the secondary panoramic image at the secondary display area, wherein the part of the secondary panoramic image corresponds to the predetermined position.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: October 10, 2023
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Publication number: 20220386971
    Abstract: An X-ray imaging apparatus is proposed. The X-ray imaging apparatus is configured to capture first and second X-ray images having examination object's alignment positions different from each other, the X-ray imaging apparatus including an imaging part configured to include a generator and a detector facing each other with an examination object interposed therebetween, and rotate the generator and the detector about a rotation axis therebetween to capture each of the first and second X-ray images, and an examination object alignment part configured to arrange the examination object between the generator and the detector, wherein a position of at least a part of the examination object alignment part is variable, so as to move and align the examination object to a first alignment position for capturing the first X-ray image and a second alignment position for capturing the second X-ray image, respectively.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 8, 2022
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Han Sik NA, Da Hea HAN
  • Publication number: 20220292678
    Abstract: The disclosure is related to a panoramic radiography device. The panoramic radiography device may include an image processor and a viewer module. The image processor may be configured to produce a primary panoramic image using a first image layer and a secondary panoramic image using a secondary image layer based on a plurality of image frame data, wherein the second image layer is different from the first image layer in at least one of a number, a position, a shape, an angle, and a thickness. The viewer module may be configured to i) provide a graphic user interface having a primary display area and a secondary display area arranged at a predetermined position of the primary display area, ii) display the primary panoramic image at the primary display area, and iii) display a part of the secondary panoramic image at the secondary display area, wherein the part of the secondary panoramic image corresponds to the predetermined position.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 15, 2022
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il CHOI
  • Publication number: 20220226089
    Abstract: Provided are a dental apparatus and a dental system using the dental apparatus, the dental apparatus including a signal detector configured to detect an electrical signal varying according to a distance between a file inserted into a tooth and an apical foramen, and a controller configured to execute a first mode for calculating the distance between the apical foramen and the file by using the electrical signal and for displaying the distance on a screen, and configured to execute a second mode for displaying root canal working length information and identification information received through a communication part or input part, on the screen, for generating identified root canal working length information by using the root canal working length information and the identification information, and for transmitting the identified root canal working length information to the external device through the communication part according to the input signal.
    Type: Application
    Filed: January 17, 2022
    Publication date: July 21, 2022
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Jin Kook ROH, Suk Bae SONG, Hyun Rak CHOI, Un Seok HAM
  • Patent number: 11373297
    Abstract: The disclosure is related to a panoramic radiography device. The panoramic radiography device may include an image processor and a viewer module. The image processor may be configured to produce a primary panoramic image using a first image layer and a secondary panoramic image using a secondary image layer based on a plurality of image frame data, wherein the second image layer is different from the first image layer in at least one of a number, a position, a shape, an angle, and a thickness. The viewer module may be configured to i) provide a graphic user interface having a primary display area and a secondary display area arranged at a predetermined position of the primary display area, ii) display the primary panoramic image at the primary display area, and iii) display a part of the secondary panoramic image at the secondary display area, wherein the part of the secondary panoramic image corresponds to the predetermined position.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: June 28, 2022
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Publication number: 20220192613
    Abstract: Disclosed is an X-ray imaging device, which is capable of providing a tomographic image of an image layer disposed between an axis of rotation and an X-ray source. The imaging device according to the present invention includes a radiography unit having an X-ray source and an X-ray sensor disposed to face each other with a rotating axis therebetween, wherein the X-ray sensor configured to obtain X-ray transmission images, a driver configured to rotate the X-ray source and the X-ray sensor about the rotating axis, and an image processor configured to provide a two-dimensional tomographic image of an image layer disposed between the rotating axis and the X-ray source, by shifting and overlapping the X-ray transmission images after reversing left and right at least some of the X-ray transmission images.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sungil CHOI
  • Patent number: 11298092
    Abstract: Disclosed is an X-ray imaging device, which is capable of providing a tomographic image of an image layer disposed between an axis of rotation and an X-ray source. The imaging device according to the present invention includes a radiography unit having an X-ray source and an X-ray sensor disposed to face each other with a rotating axis therebetween, wherein the X-ray sensor configured to obtain X-ray transmission images, a driver configured to rotate the X-ray source and the X-ray sensor about the rotating axis, and an image processor configured to provide a two-dimensional tomographic image of an image layer disposed between the rotating axis and the X-ray source, by shifting and overlapping the X-ray transmission images after reversing left and right at least some of the X-ray transmission images.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 12, 2022
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sungil Choi
  • Publication number: 20220061792
    Abstract: Proposed is an X-ray imaging apparatus including an imaging body configured to include an X-ray generation module and an X-ray sensing module that face each other with an object in between and acquire X-ray image data, an image formation module configured to reconfigure an X-ray image of the object on the basis of the X-ray image data, a size information acquisition module configured to acquire size information on the object using the X-ray image, and a control module configured to rotate the X-ray generation module and the X-ray sensing module about a rotation axis between the X-ray generation module and the X-ray sensing module and relatively move the object along a direction of the rotation axis with respect to the X-ray generation module and the X-ray sensing module when capturing the X-ray image, wherein the control module controls a relative moving speed of the object on the basis of the size information.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 3, 2022
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Tae Hee HAN, Yong Joo YANG, Sung Hwan LIM
  • Patent number: 11224114
    Abstract: The X-ray generator includes a booster for boosting a first DC voltage supplied from a voltage source to a second DC voltage higher than the first DC voltage, at least one capacitor for receiving the second DC voltage and generating a charging voltage on the basis of the second DC voltage, a converter for converting the charging voltage into a driving voltage, an X-ray source for receiving the driving voltage and emitting X-rays according to the driving voltage, and a controller for controlling the booster, the converter, and the X-ray source. The controller calculates a cooling time required for cooling the X-ray source to a predetermined temperature or lower, determines the magnitude of the second DC voltage according to the cooling time, and applies the second DC voltage to the capacitor for the cooling time.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 11, 2022
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Seung Hun Shin
  • Publication number: 20210204386
    Abstract: The X-ray generator includes a booster for boosting a first DC voltage supplied from a voltage source to a second DC voltage higher than the first DC voltage, at least one capacitor for receiving the second DC voltage and generating a charging voltage on the basis of the second DC voltage, a converter for converting the charging voltage into a driving voltage, an X-ray source for receiving the driving voltage and emitting X-rays according to the driving voltage, and a controller for controlling the booster, the converter, and the X-ray source. The controller calculates a cooling time required for cooling the X-ray source to a predetermined temperature or lower, determines the magnitude of the second DC voltage according to the cooling time, and applies the second DC voltage to the capacitor for the cooling time.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicants: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Seung Hun SHIN
  • Patent number: 11039525
    Abstract: Disclosed are a cartridge-type X-ray source apparatus and an X-ray emission apparatus using the same. The X-ray source includes: a cathode electrode provided with an electron emission source by using a nanostructure; an anode electrode having a target emitting X-rays by electron collision; and a housing forming an external appearance, and exposing a cathode electrode terminal connected to the cathode electrode and an anode electrode terminal connected to the anode electrode to an outside thereof, wherein the cathode electrode terminal and the anode electrode terminal differ from each other in at least one of exposure direction, height, size, and shape.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: June 15, 2021
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Tae Woo Kim, In Jae Baek, Soo Bong Lee
  • Patent number: 11012678
    Abstract: The disclosure is related to a method and apparatus of scanning a target object in three dimensions (3D). The method may include projecting a color dashed line pattern onto a target object, scanning the target object with the color dashed line pattern projected thereto, and producing a 3D data of the target object by processing the scanning result. The color dashed line pattern may include multiple dashed line patterns each of which is individually used to calculate the 3D data of the target object.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 18, 2021
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 10993679
    Abstract: Disclosed is a portable X-ray generation device, which uses an electric field emission X-ray source, and is thus advantageous in reducing weight and volume and has excellent reliability in X-ray emission performance. The portable X-ray generation device according to the present invention includes an electric field emission X-ray source, which includes a cathode electrode having an electron emitter, an anode electrode having an X-ray target surface, and a gate electrode between the cathode electrode and the anode electrode; and a driving signal generator configured to generate at least three driving signals applied to the cathode electrode, the anode electrode, and the gate electrode, respectively, by direct current power having a predetermined voltage, wherein the driving signal generator includes a current controller maintaining a tube current between the anode electrode and the cathode electrode to have a constant value during X-ray emission.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 4, 2021
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Seunghun Shin, Jinpyo Chun, Taewoo Kim
  • Patent number: 10932738
    Abstract: The present invention relates to an imaging device for an X-ray image and, particularly, to an imaging device for an X-ray image which enables a posture of a patient to be checked and corrected in real time when an X-ray image of a specific part of a patient's body is to be imaged.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 2, 2021
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Hyung Keun Lim, Jin Pyo Chun
  • Patent number: 10932734
    Abstract: Disclosed is a portable X-ray generation device, which uses an electric field emission-type X-ray source, and is thus advantageous in reducing weight and volume and has excellent reliability in X-ray emission performance.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 2, 2021
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Seunghun Shin, Jinpyo Chun, Taewoo Kim
  • Patent number: 10861150
    Abstract: The disclosure is related to a panoramic radiography device. The panoramic radiography device may include a memory, an image processor, and a display. The memory may be configured to store a plurality of image frame data. The image processor may be configured to i) reconfigure a first panoramic image associated with at least one first image layer using a first group image frame data among the stored plurality of image frame data and ii) reconfigure a second panoramic image associated with at least one second image layer using one of a) a part of the first group image frame data and b) a second group image frame data have at least one part different from the first group image frame data. The display may be configured to display the first and second panoramic images.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: December 8, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 10827987
    Abstract: The present invention relates to an X-ray image processing device and an X-ray image processing method using a small X-ray detector, in which the device includes a controller configured to control an X-ray source and an X-ray detector to obtain m (m is an integer of 2 or more) number of consecutive divided projection images at each of preset n (n is an integer of 1 or more) number of imaging angles while rotating around a rotary axis and facing each other, a projection image synthesizing unit configured to generate a synthetic projection image by synthesizing the m number of divided projection images obtained in correspondence to each imaging angle, and an image reconstructor configured to generate a reconstructed image by reconstructing the synthetic projection image.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 10, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Woong Bae, Sang Og Na, Sung Il Choi
  • Patent number: 10799198
    Abstract: Disclosed is an X-ray image radiographing apparatus being economical by using a small width sensor, occupying less space, and providing an X-ray CT image and an X-ray panoramic image without distortion and with high accuracy. An X-ray image radiographing apparatus according the present invention includes a rotation supporter rotating based on a rotation shaft; a generating unit including an X-ray generator radiating an X-ray beam; a sensing unit including a small width sensor moving in a width direction thereof; and a controller changing a rotation speed of the rotation supporter or a frame rate of the sensing unit to compensate changes in magnification ratio according to a distance change between an area of interest of the subject and the small width sensor when performing an X-ray image radiographing sequence obtaining a number of CT images by rotating the rotation supporter.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: October 13, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Byung-Jun Ahn, Sang-Og Na, Yong-Joo Yang, Sung-Il Choi, Dae-Ki Hong
  • Patent number: 10791998
    Abstract: The present invention relates to an X-ray image processing device and an X-ray image processing method using a small X-ray detector, in which the device includes a controller configured to control an X-ray source and an X-ray detector to obtain m (m is an integer of 2 or more) number of consecutive divided projection images at each of preset n (n is an integer of 1 or more) number of imaging angles while rotating around a rotary axis and facing each other, a projection image synthesizing unit configured to generate a synthetic projection image by synthesizing the m number of divided projection images obtained in correspondence to each imaging angle, and an image reconstructor configured to generate a reconstructed image by reconstructing the synthetic projection image.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: October 6, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Woong Bae, Sang Og Na, Sung Il Choi