Patents by Inventor Wook Chang

Wook Chang 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: 20260163086
    Abstract: A master cell for pressurized data acquisition including a cell body inserted between pressurization panels on behalf of a pressurization target, a pair of measuring electrodes to measure resistance, which protrude from both ends of the cell body, respectively, and are connected to resistors with known resistance values for calibration, an electronic pressure mapping film installed flat on one side surface of the cell body to make surface contact with the pressurization target and output distribution of a pressurizing force by the pressurization panel as an electrical signal, a communication unit to transmit the electrical signal output from the electronic pressure mapping film as a wireless signal, and a battery provided in the cell body to provide power to the electronic pressure mapping film and the communication unit, in which the battery is charged by charging power supplied through charging electrodes provided in the cell body.
    Type: Application
    Filed: December 9, 2025
    Publication date: June 11, 2026
    Inventors: Gi Young KWAK, Wook CHANG
  • Publication number: 20250253162
    Abstract: A method of manufacturing a semiconductor device may include preparing a semiconductor structure; forming a slit recessed downward in a vertical direction from a top surface of the semiconductor structure, wherein a length of the slit in the vertical direction may be greater than a width of the slit in a horizontal direction; forming a conductive layer filling at least a portion of the slit, wherein the conductive layer may include titanium nitride, and a seam may be included in the conductive layer; and performing a first etching process using an etchant composition to etch the conductive layer. A conductive pattern may be formed inside the slit from the conductive layer due to the first etching process. The oxidizing agent may include periodic acid. The additive may include nitric acid, acetic acid, or a combination thereof.
    Type: Application
    Filed: August 29, 2024
    Publication date: August 7, 2025
    Applicants: Samsung Electronics Co., Ltd., OCI Company Ltd.
    Inventors: Sangwan KIM, Geonmin RO, Gayoung SONG, Younsug YOO, Jungmin OH, Wook CHANG, Sangwon BAE
  • Publication number: 20240336839
    Abstract: A titanium nitride etchant composition and a method of forming a semiconductor device using the same are provided. The titanium nitride etchant composition includes hydrogen peroxide, phosphoric acid, and an amine compound, wherein the amine compound includes two or more nitrogen atoms.
    Type: Application
    Filed: November 14, 2023
    Publication date: October 10, 2024
    Applicants: Samsung Electronics Co,. Ltd., OCI Company Ltd.
    Inventors: GAYOUNG SONG, JUNG-MIN OH, TAE SOO KWON, JUN-EUN LEE, SANG WON BAE, Minjae SUNG, YOUN SUG YOO, WOOK CHANG
  • Patent number: 10423221
    Abstract: Provided is an apparatus and method for controlling a portable terminal. The apparatus includes a contact sensing unit which senses an area of an external surface of the portable terminal contacted by a user as the user holds the portable terminal, a recognizing unit which recognizes a function mode of the portable terminal based on information about the contacted area sensed by the contact sensing unit, and a control unit which changes the portable terminal to a function mode recognized by the recognizing unit. Since a function mode of the portable terminal is controlled according to the way a user holds the portable terminal, convenience of changing a function mode of the portable terminal is provided through a single manipulation.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Shim, Kee-eung Kim, Hyun-jin Kim, Joon-ah Park, Ho-yeal Lee, Hyun-jeong Lee, Wook Chang, Seung-nyang Chung, Sung-jung Cho
  • Publication number: 20190250760
    Abstract: A method of controlling the operation of a mobile terminal is provided. By dynamically selecting or setting a specific function of a mobile terminal according to a change in pressure or contact areas sensed by a plurality of touch sensors which cover the mobile terminal, a user can easily select or set a specific function of the mobile terminal according to his or her intention, and easily recognize information displayed on a screen of the mobile terminal.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 15, 2019
    Inventors: Wook CHANG, Joon-Ah PARK, Hyun-Jeong LEE
  • Patent number: 10268311
    Abstract: A method of controlling the operation of a mobile terminal is provided. By dynamically selecting or setting a specific function of a mobile terminal according to a change in pressure or contact areas sensed by a plurality of touch sensors which cover the mobile terminal, a user can easily select or set a specific function of the mobile terminal according to his or her intention, and easily recognize information displayed on a screen of the mobile terminal.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: April 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wook Chang, Joon-Ah Park, Hyun-Jeong Lee
  • Publication number: 20190025908
    Abstract: Provided is an apparatus and method for controlling a portable terminal. The apparatus includes a contact sensing unit which senses an area of an external surface of the portable terminal contacted by a user as the user holds the portable terminal, a recognizing unit which recognizes a function mode of the portable terminal based on information about the contacted area sensed by the contact sensing unit, and a control unit which changes the portable terminal to a function mode recognized by the recognizing unit. Since a function mode of the portable terminal is controlled according to the way a user holds the portable terminal, convenience of changing a function mode of the portable terminal is provided through a single manipulation.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 24, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung-hyun SHIM, Kee-eung KIM, Hyun-jin KIM, Joon-ah PARK, Ho-yeal LEE, Hyun-jeong LEE, Wook CHANG, Seung-nyang CHUNG, Sung-jung CHO
  • Patent number: 10167425
    Abstract: The present disclosure relates to an etching solution capable of suppressing particle appearance including a first silane compound in which three or more hydrophilic functional groups are independently bonded to a silicon atom and a second silane compound in which one or two hydrophilic functional groups are independently bonded to a silicon atom.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: January 1, 2019
    Assignee: OCI COMPANY LTD.
    Inventors: Hoseong Yoo, Seunghyun Han, Wook Chang, Yongil Kim
  • Patent number: 10114509
    Abstract: A multi-touch device detecting a touch input by using a passive element comprises a plurality of driving electrodes; a plurality of detection electrodes; a plurality of impedances positioned at an intersecting point of the plurality of driving electrodes and the plurality of detection electrodes; and a control unit selecting a first driving electrode and a first detection electrode from the plurality of driving electrodes and the plurality of detection electrodes, outputting a first voltage on the first driving electrode, outputting a second voltage on at least one of the remaining driving electrodes and at least one of the remaining detection electrodes, and detecting a touch input on a first intersecting point of the first driving electrode and the first detection electrode on the basis of a detection voltage detected from the first detection electrode.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 30, 2018
    Inventor: Wook Chang
  • Patent number: 10108255
    Abstract: Provided is an apparatus and method for controlling a portable terminal. The apparatus includes a contact sensing unit which senses an area of an external surface of the portable terminal contacted by a user as the user holds the portable terminal, a recognizing unit which recognizes a function mode of the portable terminal based on information about the contacted area sensed by the contact sensing unit, and a control unit which changes the portable terminal to a function mode recognized by the recognizing unit. Since a function mode of the portable terminal is controlled according to the way a user holds the portable terminal, convenience of changing a function mode of the portable terminal is provided through a single manipulation.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Shim, Kee-eung Kim, Hyun-jin Kim, Joon-ah Park, Ho-yeal Lee, Hyun-jeong Lee, Wook Chang, Seung-nyang Chung, Sung-jung Cho
  • Patent number: 9845241
    Abstract: The present invention relates to a method of purifying yellow phosphorus, and more particularly, to a method of effectively removing impurities from yellow phosphorus used as raw materials of a phosphoric acid to increase purity of the phosphoric acid, the method including: removing impurities from the phosphoric acid by adding an oxidizing agent to the yellow phosphorus, followed by stirring; and adding a solution including an additive having a specific functional group in a chemical structure to the yellow phosphorus from which the impurities are removed, followed by stirring.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 19, 2017
    Assignee: OCI COMPANY LTD.
    Inventors: Seung-Hyun Han, Wook Chang, Yeon-Hee Lee
  • Publication number: 20170321121
    Abstract: The present disclosure relates to an etching solution capable of suppressing particle appearance including a first silane compound in which three or more hydrophilic functional groups are independently bonded to a silicon atom and a second silane compound in which one or two hydrophilic functional groups are independently bonded to a silicon atom.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 9, 2017
    Inventors: Hoseong Yoo, Seunghyun Han, Wook Chang, Yongil Kim
  • Publication number: 20170285856
    Abstract: A method of controlling the operation of a mobile terminal is provided. By dynamically selecting or setting a specific function of a mobile terminal according to a change in pressure or contact areas sensed by a plurality of touch sensors which cover the mobile terminal, a user can easily select or set a specific function of the mobile terminal according to his or her intention, and easily recognize information displayed on a screen of the mobile terminal.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Wook CHANG, Joon-Ah PARK, Hyun-Jeong LEE
  • Publication number: 20170277354
    Abstract: A multi-touch device detecting a touch input by using a passive element comprises: a plurality of driving electrodes; a plurality of detection electrodes; a plurality of impedances positioned at an intersecting point of the plurality of driving electrodes and the plurality of detection electrodes; and a control unit selecting a first driving electrode and a first detection electrode from the plurality of driving electrodes and the plurality of detection electrodes, outputting a first voltage on the first driving electrode, outputting a second voltage on at least one of the remaining driving electrodes and at least one of the remaining detection electrodes, and detecting a touch input on a first intersecting point of the first driving electrode and the first detection electrode on the basis of a detection voltage detected from the first detection electrode.
    Type: Application
    Filed: August 12, 2015
    Publication date: September 28, 2017
    Inventor: Wook CHANG
  • Patent number: 9733757
    Abstract: A method of controlling the operation of a mobile terminal is provided. By dynamically selecting or setting a specific function of a mobile terminal according to a change in pressure or contact areas sensed by a plurality of touch sensors which cover the mobile terminal, a user can easily select or set a specific function of the mobile terminal according to his or her intention, and easily recognize information displayed on a screen of the mobile terminal.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wook Chang, Joon-Ah Park, Hyun-Jeong Lee
  • Patent number: 9552019
    Abstract: A portable terminal including: a controller receiving signals corresponding to a plurality of input buttons and outputting image data to be displayed on the plurality of input buttons using the received signals; and a plurality of buttons for inputting a key from a user and outputting a signal corresponding to the key pressed, and for receiving the image data from the controller and displaying the received image data. By using the display buttons for displaying variable images corresponding to specific functions as well as an essential function of inputting keys from a user when a specific function is input in the portable terminal, a plurality of functions can be input with only a few buttons, providing speed and convenience to the user for function input.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-kyu Choi, Wook Chang, Sun-gi Hong, Won-chul Bang, Jung-hyun Shim, Soon-joo Kwon, Seong-woon Kim
  • Patent number: 9529497
    Abstract: Disclosed are an apparatus, method, and medium for providing a user interface for file transmission. The apparatus includes a motion perception (recognition) module perceiving (recognizing) a motion input to the user interface and identifying a position of the perceived (recognized) motion, a motion execution module executing a motion corresponding to the perceived motion and the identified position of the perceived motion and modifying components of the user interface according to the executed motion, and a communication module transmitting a file to a transmission target based on the perceived motion and the identified position of the perceived motion. The components of the user interface may include a file list region, a transmission target region, and an execution region.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: December 27, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-jeong Lee, Joon-ah Park, Wook Chang
  • Patent number: 9454222
    Abstract: An object manipulation apparatus and method model an object for manipulation of a virtual object, suggest object operation schema, define a physical and mental condition of an avatar, and set motion data of the avatar.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: September 27, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Jeong Lee, Seung Ju Han, Joon Ah Park, Wook Chang, Jeong Hwan Ahn
  • Patent number: 9454223
    Abstract: Provided is an apparatus and method for controlling a portable terminal. The apparatus includes a contact sensing unit which senses an area of an external surface of the portable terminal contacted by a user as the user holds the portable terminal, a recognizing unit which recognizes a function mode of the portable terminal based on information about the contacted area sensed by the contact sensing unit, and a control unit which changes the portable terminal to a function mode recognized by the recognizing unit. Since a function mode of the portable terminal is controlled according to the way a user holds the portable terminal, convenience of changing a function mode of the portable terminal is provided through a single manipulation.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Shim, Kee-eung Kim, Hyun-jin Kim, Joon-ah Park, Ho-yeal Lee, Hyun-jeong Lee, Wook Chang, Seung-nyang Chung, Sung-jung Cho
  • Publication number: 20160259409
    Abstract: An object manipulation apparatus and method model an object for manipulation of a virtual object, suggest object operation schema, define a physical and mental condition of an avatar, and set motion data of the avatar.
    Type: Application
    Filed: January 29, 2010
    Publication date: September 8, 2016
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun Jeong Lee, Seung Ju Han, Joon Ah Park, Wook Chang, Jeong Hwan Ahn