Patents by Inventor Woo Cha

Woo Cha 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: 11992562
    Abstract: A percutaneous absorption preparation is disclosed. The percutaneous absorption preparation contains donepezil for treatment of dementia, wherein the preparation includes: (a) donepezil or its pharmaceutically acceptable salt as active component, (b) propylene glycol monocaprylate as solubilizer, and (c) styrene-isoprene-styrene block copolymer (“SIS”) as adhesive. The percutaneous absorption preparation has low skin irritation and high skin penetration.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 28, 2024
    Assignees: DONG-A ST CO., LTD., KM TRANSDERM LTD.
    Inventors: Sun-Woo Jang, Chang-Yell Shin, Jeong-Soo Kim, Hae-Sun Kim, Kwang-Ho Cha, Hyun-Jung Kim, Masaoki Goto
  • Publication number: 20240125442
    Abstract: A vehicle light includes: a light lens having a base panel made of a transparent plastic material, an outer paint layer disposed on an outer surface of the base panel, and an inner paint layer disposed on an inner surface of the base panel and including a light-transmitting hole formed therein; and a light source installed to be spaced apart from the light lens, in which light from the light source is transmitted out of the light lens through the light-transmitting hole and the base panel.
    Type: Application
    Filed: July 25, 2023
    Publication date: April 18, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, SL Corporation
    Inventors: Sung Ho PARK, Dong Eun CHA, Dong Woo KIM, Young Ho JO, Tae Seok SEO
  • Publication number: 20240075534
    Abstract: A coated cutting tool having excellent wear resistance and controlled brittleness is provided. An embodiment of the present disclosure provides a coated cutting tool including: a substrate; and a cutting layer disposed on the substrate, wherein: the cutting layer includes a brittleness suppressing layer and a wear-resistant layer disposed on the brittleness suppressing layer; the substrate includes a hard alloy body such as cemented carbide, cermet, ceramic, cubic boron nitride-based materials, or high-speed steel; the brittleness suppressing layer includes a first layer and a second layer disposed on the first layer; the first layer and the second layer each independently includes any one of (AlbTi1-b)X (where 0.6<b<0.8, and X is at least one selected from N, C, CN, NO, CO, and CNO) and (TicAl1-c)X (where 0.4<c?0.5, and X is at least one selected from N, C, CN, NO, CO, and CNO); and the first layer and the second layer include materials different from each other.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 7, 2024
    Inventors: SOO HYUN CHA, GEUN WOO PARK, SANG YOUNG JO, TAE YANG HAN
  • Patent number: 11925098
    Abstract: A display device includes a first transistor including a first active layer, a first gate electrode overlapping the first active layer, a gate insulating layer between the first active layer and the first gate electrode, a first source electrode, and a first drain electrode; a second transistor including a second active layer, a second gate electrode overlapping the second active layer, a second source electrode and a second drain electrode; a capacitor including a first capacitor electrode connected to the second transistor; a lower electrode disposed under the first active layer; a connecting member connecting the first active layer to the lower electrode; and a first metal pattern contacting the connecting member and disposed on a same layer with the first gate electrode.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myoung Geun Cha, Sang Gun Choi, Joon Woo Bae, Ji Yeong Shin, Yong Su Lee
  • Patent number: 11503268
    Abstract: A real-time broadcasting device includes a plurality of image capturing units arranged to capture images at the same time in different directions from the same point; an image selection unit for comparing the angle of view covered by each of the plurality of image capturing units and the gaze direction of a user terminal, and selecting an image of the image capturing unit, among the plurality of image capturing units, capturing images corresponding to the gaze direction of the user terminal; an image transmission unit for transmitting virtual reality images captured by the image capturing unit selected by the image selection unit to the user terminal in real time; and a gaze direction reception unit for receiving feedback about which direction the gaze direction of the user terminal viewing the virtual reality images is, and transmitting same to the image selection unit.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: November 15, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo Cha, Ta sik Chung
  • Patent number: 11492568
    Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: November 8, 2022
    Assignees: KEPCO NUCLEAR FUEL CO., LTD., SHL CO., LTD.
    Inventors: Min Young Park, Sang Jin Han, Ki Bum Park, Jung Woo Cha, Duk Hee Lee, Kyung Tae Kim, Pyeong Mo Yeo, Jeong Jin Jang, Sang Soon Choi
  • Publication number: 20220295035
    Abstract: A real-time broadcasting device includes a plurality of image capturing units arranged to capture images at the same time in different directions from the same point; an image selection unit for comparing the angle of view covered by each of the plurality of image capturing units and the gaze direction of a user terminal, and selecting an image of the image capturing unit, among the plurality of image capturing units, capturing images corresponding to the gaze direction of the user terminal; an image transmission unit for transmitting virtual reality images captured by the image capturing unit selected by the image selection unit to the user terminal in real time; and a gaze direction reception unit for receiving feedback about which direction the gaze direction of the user terminal viewing the virtual reality images is, and transmitting same to the image selection unit.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo CHA, Ta sik CHUNG
  • Patent number: 11412199
    Abstract: Present Invention provides a method of virtual reality image transition configured to implement frame synchronization by controlling transit time among image segmentation expressing virtual reality comprises, (a) determining a key frame distance (KFD) of image segmentation expressing a part of original image for implementing virtual reality, (b) implementing frame synchronization between image segmentation before and after transition by executing a transition of image segmentation only in a key frame among frames composing image segmentation, when reproduced image segmentation is transited as the user's gaze changes.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 9, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Ta Sik Chung, Dong Woo Cha
  • Publication number: 20220210390
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Patent number: 11325032
    Abstract: The present invention provides a virtual reality image playing device, the device comprising: a streaming image input unit for receiving, through streaming, one streaming image including multiple virtual reality images captured in different directions at an identical time and at an identical point; a streaming time operation unit for adding a play position of a currently playing virtual reality image to a reference time of a virtual reality image to be newly played; and an image playing unit for playing a streaming image, which has been streamed, on a display device. When virtual reality images captured in different directions are to be played as a gaze of a user changes, the virtual reality image playing device plays multiple virtual reality images by using one streaming image by performing a streaming time jump of a streaming image, using a reference time at which an individual virtual reality image starts.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: May 10, 2022
    Assignee: APLHACIRCLE CO., LTD.
    Inventors: Dong Woo Cha, Ta sik Chung
  • Patent number: 11321845
    Abstract: A method of virtual reality image segmentation and a virtual reality image reproducing device are disclosed. The method provides a step of determining the Play FOV of the image segmentation by adding a Guard FOV to the Temporary FOV covered by the temporary image segmentation, in the temporary image segmentation that divides the original image into Nth regions, a step of determining a Virtual Device FOV wider than a Device FOV of the head-mounted display by a predetermined Additional FOV and a step of starting a transit procedure of reproduced image segmentation among a plurality of image segmentation when a predetermined transit standard calculated using the Virtual Device FOV and Play FOV of reproduced image segmentation is satisfied.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: May 3, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Ta Sik Chung, Dong Woo Cha
  • Patent number: 11310476
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 19, 2022
    Assignees: ALPHACIRCLE CO., LTD., UNIVERSITY-INDUSTRY COLLABORATION & CONSULTING FOUNDATION
    Inventors: Eui Hyun Shin, Ta Sik Chung, Dong Woo Cha
  • Patent number: 11301667
    Abstract: A smart user equipment (UE) connected to a head mounted display (HMD) worn on a user's head, for playing a video is disclosed. The smart UE includes an operation control module configured to recognize a predetermined user action by a sensor or a camera included in the smart UE and perform a control operation mapped to the user action. The smart UE enables the user to control an operation of the smart UE regardless of whether the HMD includes a separate control means by controlling the smart UE without removing the HMD through the operation control module.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 12, 2022
    Inventors: Eui Hyun Shin, Ta Sik Chung, Dong Woo Cha
  • Publication number: 20210394055
    Abstract: The present invention provides a virtual reality image playing device, the device comprising: a streaming image input unit for receiving, through streaming, one streaming image including multiple virtual reality images captured in different directions at an identical time and at an identical point; a streaming time operation unit for adding a play position of a currently playing virtual reality image to a reference time of a virtual reality image to be newly played; and an image playing unit for playing a streaming image, which has been streamed, on a display device. When virtual reality images captured in different directions are to be played as a gaze of a user changes, the virtual reality image playing device plays multiple virtual reality images by using one streaming image by performing a streaming time jump of a streaming image, using a reference time at which an individual virtual reality image starts.
    Type: Application
    Filed: September 2, 2021
    Publication date: December 23, 2021
    Applicant: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo CHA, Ta sik CHUNG
  • Publication number: 20210360220
    Abstract: Present Invention provides a method of virtual reality image transition configured to implement frame synchronization by controlling transit time among image segmentation expressing virtual reality comprises, (a) determining a key frame distance (KFD) of image segmentation expressing a part of original image for implementing virtual reality, (b) implementing frame synchronization between image segmentation before and after transition by executing a transition of image segmentation only in a key frame among frames composing image segmentation, when reproduced image segmentation is transited as the user's gaze changes.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210358131
    Abstract: A method of virtual reality image segmentation and a virtual reality image reproducing device are disclosed. The method provides a step of determining the Play FOV of the image segmentation by adding a Guard FOV to the Temporary FOV covered by the temporary image segmentation, in the temporary image segmentation that divides the original image into Nth regions, a step of determining a Virtual Device FOV wider than a Device FOV of the head-mounted display by a predetermined Additional FOV and a step of starting a transit procedure of reproduced image segmentation among a plurality of image segmentation when a predetermined transit standard calculated using the Virtual Device FOV and Play FOV of reproduced image segmentation is satisfied.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210312160
    Abstract: A smart user equipment (UE) connected to a head mounted display (HMD) worn on a user's head, for playing a video is disclosed. The smart UE includes an operation control module configured to recognize a predetermined user action by a sensor or a camera included in the smart UE and perform a control operation mapped to the user action. The smart UE enables the user to control an operation of the smart UE regardless of whether the HMD includes a separate control means by controlling the smart UE without removing the HMD through the operation control module.
    Type: Application
    Filed: October 24, 2019
    Publication date: October 7, 2021
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210238495
    Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
    Type: Application
    Filed: December 11, 2020
    Publication date: August 5, 2021
    Applicants: KEPCO NUCLEAR FUEL CO., LTD., SHL CO., LTD.
    Inventors: Min Young Park, Sang Jin Ham, Ki Bum Park, Jung Woo Cha, Duk Hee Lee, Kyung Tae Kim, Pyeong Mo Yeo, Jeong Jin Jang, Sang Soon Choi
  • Publication number: 20210211631
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Application
    Filed: June 27, 2019
    Publication date: July 8, 2021
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Patent number: 10575194
    Abstract: Systems, methods, and computer-readable media, for facilitating control of network loads are provided. In embodiments of the present invention, network data associated with a plurality of base stations within a communications network are monitored. Upon identifying that a network load associated with a base station exceeds a network load threshold, an indication that a user device utilizing the base station that exceeds the network load threshold to communicate should transfer to another base station that fails to exceed the network load threshold is provided.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 25, 2020
    Assignee: Sprint Communications Company L.P.
    Inventors: Bejoy Pankajakshan, Warren Bruce Cope, Jamie Paul Brocket, Tae-Woo Cha