Patents by Inventor Woo-Joo Lee

Woo-Joo Lee 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).

  • Publication number: 20250145860
    Abstract: A polishing composition for a semiconductor process includes polishing particles, a polishing pad protectant, and a fluorinated surfactant. The polishing composition for the semiconductor process has an Rm/e value of 2.5% or less, which is a ratio of a number of defects derived from an organic substance as calculated by Equation 1 below. Rm / e = Dm De × 100 ? ( % ) [ Equation ? 1 ] In the Equation 1, a De value is a number of defects detected from a top surface of a substrate after polishing the top surface with the polishing composition for the semiconductor process and etching back the top surface, and a Dm value is a number of defects derived from the organic substance among 100 defects randomly selected from the defects detected from the top surface after the polishing and etching back of the top surface. In these cases, polished and etched surfaces can prevent contamination by particles, especially organic particles.
    Type: Application
    Filed: November 6, 2024
    Publication date: May 8, 2025
    Applicants: SK enpulse Co., Ltd., SK HYNIX INC.
    Inventors: Deok Su HAN, Jong Young CHO, Woo Joo KIM, Hyun Goo KANG, Dong Kyun LEE
  • Publication number: 20250143695
    Abstract: A surgical instrument includes an end tool including one or more jaws, wherein one of the one or more jaws includes a reciprocating assembly disposed in the jaw and formed to be movable in a first direction, which is a longitudinal direction of jaw, an operation member formed to be in contact with the reciprocating assembly and movable forward toward a distal end of the jaw from a proximal end side of the jaw in the first direction by the reciprocating assembly, and a backward-moving wire disposed adjacent to the operation member and movable in the first direction, wherein the backward-moving wire includes one or more coupling members fixed to the backward-moving wire, wherein the one or more coupling members are allowed to move the operation member backward toward the proximal end of the jaw.
    Type: Application
    Filed: November 6, 2024
    Publication date: May 8, 2025
    Inventors: Jung Joo LEE, Woo Jung CHOI
  • Publication number: 20250145861
    Abstract: A polishing composition for a semiconductor process according to one embodiment of the present disclosure includes a polishing particle and a corrosion inhibitor. The corrosion inhibitor includes a first corrosion inhibitor, which is an amino azole-based compound and a second corrosion inhibitor, which is a diazole-based compound. The polishing composition for a semiconductor process has a pH of 2 to 5. A static etch rate for a tungsten film of the polishing composition for a semiconductor process is 6 ?/min or less. When polishing a substrate comprising a tungsten film and the silicon oxide film, such a polishing composition may provide a defect-reduced polished surface while exhibiting excellent polishing rate for a silicon oxide film.
    Type: Application
    Filed: November 5, 2024
    Publication date: May 8, 2025
    Applicants: SK enpulse Co., Ltd., SK HYNIX INC.
    Inventors: Deok Su HAN, Jong Young CHO, Woo Joo KIM, Hyun Goo KANG, Dong Kyun LEE
  • Patent number: 12276555
    Abstract: A conductive yarn pressure sensor is proposed. The pressure sensor may include a porous fiber layer having predetermined cavities formed therein. The pressure sensor may also include a first sensing electrode made of a first conductive yarn formed on one surface of the porous fiber layer, and a second sensing electrode made of a second conductive yarn formed on the other surface of the porous fiber layer. The first sensing electrode or the second sensing electrode may be provided so as to be in contact with each other in the cavities of the porous fiber layer due to external pressure. According to an embodiment, by having conductive yarn in flexible clothing or textile material, pressure can be sensed by effectively responding to deformation due to external pressure.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: April 15, 2025
    Assignee: Korea Electronics Technology Institute
    Inventors: Won Hyo Kim, Woo Kyeong Seong, Kook Nyung Lee, Su Mi Yoon, Dong Ki Hong, Young Joo Kim, Hye Lim Kang
  • Publication number: 20250093100
    Abstract: In one aspect, an electric furnace is provided with a double type melting furnace, which includes: a first upper cell that forms a first upper space of a first melting furnace in which a first iron source is introduced and molten; a second upper cell that is disposed in a horizontal direction of the first upper cell and forms a second upper space of a second melting furnace in which a second iron source is introduced and molten; a lower cell that is combined with lower portions of the first upper cell and the second upper cell and forms a single integrated space in which a first lower space of the first melting furnace and a second lower space of the second melting furnace are integrated; and a partition wall unit that is installed to vertically move up and down between the first upper cell and the second upper cell, and separates the first lower space of the first melting furnace and the second lower space of the second melting furnace, although both of the lower spaces are integrally formed by the lower cel
    Type: Application
    Filed: December 3, 2024
    Publication date: March 20, 2025
    Inventors: Dae Hoon Shin, Kyun Tae Kim, Yong Hee Kim, Young Joo Park, Woo Seok Song, Myoung Cheol Shin, June Yong Eom, Jae Rang Lee, Jae Min Lee, Jong Oh Jo
  • Publication number: 20250086097
    Abstract: The present invention relates to an embedded device testing method. Preferably, the present invention relates to a function testing method for an embedded device designed to execute a specific function. The embedded device testing method having a hierarchical host structure executed on a computing device according to the present invention includes: receiving, by a main host, setting information for an execution environment of a target device; constructing a virtualized execution environment on a sub host according to the setting information; executing specific software or a specific test case in the constructed execution environment; and monitoring a result of the execution. According to the present invention, resources may be utilized efficiently because there is no need to newly configure and prepare physical hardware resources every time during the development and testing of an embedded device.
    Type: Application
    Filed: November 23, 2023
    Publication date: March 13, 2025
    Applicant: TESTWORKS Co., Ltd.
    Inventors: Jin Suk LEE, Jung Hyun IM, Seung Won LEE, Yeon Jae LEE, Woo Joo KIM, Suk Won YOON
  • Patent number: 10977988
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 13, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum
  • Publication number: 20200234635
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Woo Joo LEE, Suk Ho LEE, Kyung Jin BYUN, Nak Woong EUM
  • Patent number: 10650732
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 12, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo Lee, Suk Ho Lee, Kyung Jin Byun, Nak Woong Eum
  • Publication number: 20190209430
    Abstract: The present invention relates to an integrated liquid-circulating dual pipe lamp comprising: a lamp unit which has a plurality of coils and filaments thereinside, and which has a position-fixing ring for fixing positions of the filaments; a lamp housing which has the lamp unit thereinside, and which has a circulation hole formed thereon so that liquid circulates outside the lamp unit at a predetermined temperature; watertight members which seal both end parts of the lamp housing, and into/through which both end parts of the lamp unit are inserted and penetrate; a liquid-circulation member which is coupled to the watertight member, which supplies a predetermined amount of liquid towards the circulation hole so as to circulate the same, and which discharges the circulating liquid according to the temperature of the liquid; and a reflection member in which the lamp housing is mounted.
    Type: Application
    Filed: February 1, 2018
    Publication date: July 11, 2019
    Inventor: Woo Joo Lee
  • Patent number: 10262608
    Abstract: A display device includes a display unit including a plurality of pixels, a plurality of gate lines and a plurality of data lines which are connected to the plurality of pixels, a data driver applying data voltages to the plurality of data lines, and a gate driver delaying and outputting first gate signals applied to gate lines among the plurality of gate lines in a first sub-frame included in one frame and advancing and outputting second gate signals which are applied to remaining gate lines among the plurality of gate lines in a second sub-frame.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ik Hyun Ahn, Woo Joo Lee, Hyun Sik Hwang, Bong Im Park
  • Patent number: 10121425
    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik-Hyun Ahn, Yoon-Gu Kim, Woo-Joo Lee, Bong-Im Park
  • Publication number: 20180293935
    Abstract: Provided is a display device including a display panel, a power delivery network (PDN), an image controller, and a PDN controller. The display panel may include a plurality of sub-panels. The PDN may be controlled by a control signal, respectively deliver voltages determined by the control signal to the plurality of sub-panels, and generate state information for determining the control signal. The image controller may receive to store frame image data, determine a number of frames to be integrated according to a window size, and integrate the frame image data of frames in the determined number into one image to generate integrated image data. The PDN controller may generate the control signal and a size adjusting signal based on the state information and the integrated image data, provide the generated control signal to the PDN, and may provide the generated size adjusting signal to the image controller. The size adjusting signal may adjust the window size.
    Type: Application
    Filed: January 25, 2017
    Publication date: October 11, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Woo Joo LEE, Suk Ho LEE, Kyung Jin BYUN, Nak Woong EUM
  • Patent number: 9959798
    Abstract: A display panel driving apparatus includes a data processing circuit, a data driver, and a gate driver. The data processing circuit increases a first gamma value of input image data of which the gamma value is 0, according to a second gamma value of the input image data of which the second gamma value is not 0. The data driving part outputs a data signal based on the output image data to a data line. The gate driving part outputs a gate signal to a gate line.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 1, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yoon-Gu Kim, Bong-Im Park, Ik-Hyun Ahn, Hyun-sik Hwang, Woo-Joo Lee, Jin-Young Lee
  • Publication number: 20160196799
    Abstract: A display device includes a display unit including a plurality of pixels, a plurality of gate lines and a plurality of data lines which are connected to the plurality of pixels, a data driver applying data voltages to the plurality of data lines, and a gate driver delaying and outputting first gate signals applied to gate lines among the plurality of gate lines in a first sub-frame included in one frame and advancing and outputting second gate signals which are applied to remaining gate lines among the plurality of gate lines in a second sub-frame.
    Type: Application
    Filed: September 14, 2015
    Publication date: July 7, 2016
    Inventors: Ik Hyun AHN, Woo Joo LEE, Hyun Sik HWANG, Bong Im PARK
  • Publication number: 20160180816
    Abstract: A liquid crystal display has a first transistor, a first capacitor, a second transistor, a liquid crystal element, and a third transistor. A controller may be configured to alternately, based on a period of a horizontal signal, apply a common voltage through a common voltage line at a high level and a low level.
    Type: Application
    Filed: May 13, 2015
    Publication date: June 23, 2016
    Inventors: Hyun Sik HWANG, Bong Im Park, Ik Hyun Ahn, Woo Joo Lee
  • Publication number: 20160118001
    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.
    Type: Application
    Filed: August 13, 2015
    Publication date: April 28, 2016
    Inventors: Ik-Hyun AHN, Yoon-Gu KIM, Woo-Joo LEE, Bong-Im PARK
  • Publication number: 20150046152
    Abstract: A method for generating a set of concept blocks is presented, wherein the concept blocks are words in a corpus of documents that can be processed to extract trends, build an efficient inverted search index, or generate a summary report of the content. The method entails generating a plurality of target words from the corpus, determining context strings for the target words, obtaining pattern types that are based on number of words and position of words relative to the target words, and assigning weights to each of the context strings having a particular pattern type. The target words are then expressed as vectors that reflect the weights of the context strings. The vectors are compared and grouped into clusters based on similarity. Target words in the resulting clusters are concept blocks. A subgroup of clusters may be selected for another iteration of the process to catch new concept blocks.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventor: Woo Joo LEE
  • Publication number: 20050010814
    Abstract: System for preventing and delaying distribution of computer viruses through electronic mails, includes a virus checking module and a curing inducement module for inducing a virus transmitting client. In system and method of this invention, an IP address of the virus transmitting client is stored as an infected IP address and a predetermined blocking time is imposed to the infected IP address. Until the blocking time has passed, normal messages having no virus from the infected IP address are not allowed to be processed.
    Type: Application
    Filed: October 1, 2002
    Publication date: January 13, 2005
    Inventors: Sung-Yeop Lim, Woo-joo Lee
  • Publication number: 20030069933
    Abstract: A connection request from a remote host is denied by an e-mail service system, if the number of connection request from the remote host exceeds a predetermined reference number, and the responsibility to re-send the denied e-mail is transferred to the requesting host. For the determination of connection permission or denial, the number of connection requests from the remote host is calculated with reference to corresponding to an IP address. By the IP filtering scheme, traffic of the e-mail service system can be effectively managed and controlled.
    Type: Application
    Filed: July 12, 2002
    Publication date: April 10, 2003
    Inventors: Sung-Yeop Lim, Woo-Joo Lee