Patents Assigned to Vatech Ewoo Holdings Co., Ltd.
  • 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
  • Patent number: 10786336
    Abstract: The present invention relates to a combined model scanning and oral cavity scanning apparatus. The combined model scanning and oral cavity scanning apparatus includes an optical three-dimensional measurement unit configured to generate light, acquire intraoral shape information, and acquire model shape information, a data processor configured to generate three-dimensional tooth data, a data transmission unit configured to transmit the three-dimensional tooth data, a main body accommodating the optical three-dimensional measurement unit, the data processor, and the data transmission unit, and at least two intraoral scanning tips configured to be alternately detachable to the main body and provide light paths, wherein the at least two intraoral scanning tips includes a model scanning tip for scanning a dental model.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 29, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: An O Moon, Yeong Kyun Kim
  • Patent number: 10772586
    Abstract: Disclosed are a backscattered ray shielding mechanism and a portable X-ray generating device comprising the same. The backscattered ray shielding mechanism according to the present invention is mounted on a portable X-ray generating hand-held device to emit X-rays and blocking backscattered X-rays during X-ray emission and includes a lead-free lightweight shielding member, which is detachably or foldably mounted as a convertible form on an X-ray emitting unit of the portable X-ray generating device and partially supported by the X-ray emitting unit.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: September 15, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Yeong Kyun Kim, Tae Woo Kim, Min Seok Yun
  • Patent number: 10709405
    Abstract: Disclosed is an X-ray CT radiographing apparatus capable of selecting various FOVs, simplifying radiographing motion, and reducing X-ray exposure dose, and a method thereof. An X-ray CT radiographing apparatus according to the present invention includes a rotation supporter rotating by a rotation driver, a generating unit including an X-ray generator emitting X-rays and a collimator so as to radiate a collimated X-ray beam, a sensing unit including a small width X-ray sensor moving in a tangential direction of a rotation trajectory, and a controller controlling operations of the rotation driver, the generating unit, and the sensing unit when performing X-ray radiographing, and configuring movement trajectories of an X-ray beam for radiographing FOVs different from each other to be the same, and controlling the generating unit to turn OFF the X-ray beam in sections different from each other of the movement trajectory of the X-ray beam according to the FOV.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 14, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Byung-Jun Ahn
  • Patent number: 10713825
    Abstract: A medical image processing device is disclosed. The disclosed medical image processing device may include: an input interface through which a depth adjusting command is input from a user; an image processor and controller generating a two-dimensional reconstruction image by overlapping a part or all of CT image data in a view direction, and changing a contrast of at least a part of the two-dimensional reconstruction image according to the depth adjusting command; and a display part displaying the two-dimensional reconstruction image.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 14, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Woong Bae, Sung Il Choi
  • Patent number: 10695008
    Abstract: The present invention provides an X-ray imaging device including an X-ray emitter and an X-ray detector rotating while facing each other with an imaging subject interposed therebetween, a device controller controlling the X-ray imaging device such that a first X-ray imaging is performed with a first dose in a partial section of a rotation locus of the X-ray emitter and the X-ray detector and a second X-ray imaging is performed with a second dose lower than the first dose in a remaining section, and an image processor producing an X-ray image by receiving first and second X-ray image data of the first and the second X-ray imaging from the X-ray detector.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: June 30, 2020
    Assignees: VATECH Co. Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Yong-Joo Yang, Keun-Yeoung Kim, Tae-Woo Kim, Sung-Il Choi
  • Patent number: 10687775
    Abstract: The present invention relates generally to a cephalometric X-ray image acquisition device. More particularly, the present invention relates to a cephalometric X-ray image acquisition device capable of providing a three-dimensional facial optical image and a cephalometric X-ray image of a subject.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: June 23, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Yeong Kyun Kim, Tae Woo Kim, Sung Il Choi
  • Patent number: 10687768
    Abstract: Disclosed is an X-ray image forming device is disclosed. The device includes an X-ray imaging unit including a rotating member rotatable about a rotating shaft and linearly movable, and an X-ray source and an X-ray sensor disposed at opposite ends of the rotating member to face each other with a region of interest therebetween, a penetration data acquisition unit configured to acquire X-ray penetration data from multiple directions crossing through an image layer in the region of interest by controlling the X-ray imaging unit and an image reconstructor configured to generate projection data in a predetermined angle range at each section of the image layer from the X-ray penetration data, and reconstruct a two-dimensional X-ray panoramic image of the image layer based on the projection data.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 23, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Sung Il Choi, Woong Bae
  • Patent number: 10674971
    Abstract: Disclosed is an X-ray image display apparatus with improved depth resolution, the display apparatus including a storage storing a plurality of X-ray frame data about a subject, an image processor reconstructing a first X-ray image by using a first group of X-ray frame data constituted by at least a portion of the plurality of X-ray frame data and reconstructing a second X-ray image by using a second group of X-ray frame data constituted by at least a portion of the plurality of X-ray frame data, a display configured to provide a screen, and a viewer module displaying a background image display part and a partial image display part disposed at a portion of the background image display part on the screen, displaying the first X-ray image on the background image display part, and displaying a portion of the second X-ray image corresponding to the first X-ray image on the partial image display part.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: June 9, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 10674988
    Abstract: Disclosed are a charging cradle and a portable radiography device including the same, which is capable of displaying the residual battery capacity when the portable radiography device is being charged and even when not being charged and, more specifically, displaying the possible number of times of radiography in real time by using the residual battery capacity, such that a user can exactly determine when to charge. The portable radiography device includes a radiography device main body having a rechargeable battery, a first communication unit provided in the main body to transmit battery charging state information, a charging cradle configured to receive external power to supply charging power to the battery, a second communication unit provided in the charging cradle to receive the battery charging state information from the first communication unit, and a display unit provided in the charging cradle to display the battery charging state information.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: June 9, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Yeong Kyun Kim, Tae Woo Kim
  • Patent number: 10638984
    Abstract: The present invention relates to an X-ray collimator capable of adjusting a field of view during X-ray imaging and an X-ray imaging apparatus using the same, the apparatus including an X-ray light source configured to emit X-rays, an X-ray detector configured to detect the X-rays, and a collimator configured to provide an opening to determine an FOV of the X-rays between the X-ray light source and the X-ray detector, wherein the opening is configured such that at least one of a first edge at an entrance side facing the X-ray light source, and a second edge at an exit side facing the X-ray detector is formed in a curved shape.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: May 5, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 10617373
    Abstract: Disclosed is a dental X-ray imaging apparatus having a radiographing housing so as to provide a stable radiographing environment to an examinee. The dental X-ray radiographing apparatus includes a radiographing unit including a rotary arm, an X-ray generator, and an X-ray sensor, and a radiographing housing for covering an upper part, an outside and an inside of an operating range of the radiographing unit. The imaging apparatus further includes a lifter configured to move the radiographing housing, and a handle frame disposed at a lower part of the radiographing housing with a variable height and including a chin rest, wherein the lifter moves the radiographing housing such that the distance between the chin rest and the radiographing housing is constant.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: April 14, 2020
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Byung Jun Ahn, Jung In Lee, Yeong Kyun Kim, Chi Taek Oh
  • Patent number: D888246
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 23, 2020
    Assignees: Rayence Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Keum Chul Kim, Nam Hyeong Kim, Yong Kyoung Jeon