Patents by Inventor In-Chul Hwang

In-Chul Hwang 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: 11699784
    Abstract: A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: July 11, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Jik Soo Kim, Sang Bok Kim, Hyo Shin Kwak, Myoung Lae Kim, Se Rah Moon, Jin Seok Seo, Mi Jung Noh, Duck Chul Hwang
  • Patent number: 11678531
    Abstract: A display device includes a substrate including a display region and a non-display region including sub-non-display regions extending from sides of the display region and separated from each other, a display layer provided on a surface of the substrate in the display region and including pixels, and wiring lines provided in the sub-non-display regions on the substrate and electrically connected to the pixels. The sub-non-display regions each includes a display connection region connected to the display region and at least one extension region extending from a part of the display connection region. The sub-non-display regions are bent and are disposed on a surface opposite to a surface, on which the display layer is disposed, in the display region. When the sub-non-display regions are bent, an extension region of one of the sub-non-display regions overlaps another extension region of another of the sub-non-display regions.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Se Ja Chul Hwang
  • Publication number: 20230107279
    Abstract: A lithium secondary battery includes a cathode formed of a cathode active material including a lithium metal oxide particle having a concentration gradient, and a coating formed on the lithium metal oxide particle, the coating including aluminum, titanium and zirconium, an anode, and a separator interposed between the cathode and the anode. The cathode active material includes 2,000 ppm to 4,000 ppm of aluminum, 4,000 ppm to 9,000 ppm of titanium and 400 ppm to 700 ppm of zirconium, based on the total weight of the cathode active material. The performance of the secondary battery may be maintained under a high temperature condition.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Inventors: Kyung Bin YOO, Duck Chul HWANG
  • Publication number: 20230101261
    Abstract: Disclosed are a photosensitive resin composition including (A) a colorant including a xanthene-based dye and a blue pigment having an average particle diameter (D50) of less than 100 nm; (B) a binder resin including a radically polymerizable double bond; (C) a photopolymerizable compound; (D) a photopolymerization initiator; (E) a matting agent; and (F) a solvent, a photosensitive resin layer manufactured using the photosensitive resin composition, and a color filter including the photosensitive resin layer.
    Type: Application
    Filed: July 13, 2021
    Publication date: March 30, 2023
    Inventors: Kyoungsoo PARK, Sunghoon PARK, Se Il OH, Youngmin JEON, Juho JUNG, Seyoung CHOI, Han Chul HWANG
  • Patent number: 11605081
    Abstract: An example device includes a memory configured to store at least one program; a microphone configured to receive a voice; and at least one processor configured to execute the at least one program to control the device to perform operations for sending money to a recipient. The operations include determining a payment intention of a user based on analyzing the received voice input; retrieving contact information from a stored contact list based on the name of the recipient; transmitting the name and the contact information of the recipient to a bank server together with an amount of money specified in the voice input; receiving remittance details from the bank server; and approving the remittance details. The device may analyze the received voice input by using an artificial intelligence (AI) algorithm.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-hak Yu, Min-seo Kim, In-chul Hwang
  • Patent number: 11605958
    Abstract: A method for preventing an inrush current of an electric vehicle charger may include the steps of determining whether there is a need for an increase or decrease in a charging current level while currently supplied to an electric vehicle to be charged; decreasing the charging current level at a predetermined ratio when it is determined that there is the need for the increase or decrease in the charging current level; checking whether an inrush current occurs for a first time; activating or deactivating at least one charging module to increase or decrease the charging current level according to the request of the electric vehicle to be charged, when the inrush current does not occur for the first time; checking whether the inrush current occurs for a second time; and increasing the charging current level by the charging current level requested by the electric vehicle to be charged, when the inrush current does not occur for the second time.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: March 14, 2023
    Assignee: SK SIGNET INC.
    Inventors: Ho Chul Hwang, Chung Youl Lee, Ho Byung Chae, Kyung Se Moon, Jae Uk Ham
  • Patent number: 11597484
    Abstract: An underwater vehicle having a hovering system using a tube type launcher. The underwater vehicle includes a streamlined body and a hovering system connected to a rear of the streamlined body to generate a kinetic force of the streamlined body. The hovering system includes an extension shaft extended to be connected to the rear, a connection assembly connected to the rear through the extension shaft, and an auxiliary propeller assembly connected to the connection assembly.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 7, 2023
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Kun Chul Hwang, Dong Hoon Lee, Jun Ho Lee, Jae Moon Yoon
  • Patent number: 11581533
    Abstract: A lithium secondary battery includes a cathode formed of a cathode active material including a lithium metal oxide particle having a concentration gradient, and a coating formed on the lithium metal oxide particle, the coating including aluminum, titanium and zirconium, an anode, and a separator interposed between the cathode and the anode. The cathode active material includes 2,000 ppm to 4,000 ppm of aluminum, 4,000 ppm to 9,000 ppm of titanium and 400 ppm to 700 ppm of zirconium, based on the total weight of the cathode active material. The performance of the secondary battery may be maintained under a high temperature condition.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: February 14, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Kyung Bin Yoo, Duck Chul Hwang
  • Patent number: 11568036
    Abstract: A display device including a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and a fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.
    Type: Grant
    Filed: November 7, 2021
    Date of Patent: January 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Sang Park, Jin Oh Kwag, Il Nam Kim, Ji Hun Ryu, Seung Hyun Moon, Bong Hyun You, Jong Hyun Lee, Hee Chul Hwang
  • Publication number: 20220416241
    Abstract: A lithium secondary battery according to an embodiment of the present invention comprises a cathode and an anode. The cathode comprises lithium metal oxide particles that contains lithium and metal elements. The lithium metal oxide particles have a concentration gradient region formed in at least one region between a center and a surface. A concentration of at least one of the metal elements is changed in the concentration gradient region. The anode comprises an anode active material that contains a silicon-based active material and a carbon-based active material. A content of the carbon-based active material in the anode active material is greater than a content of the silicon-based active material.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 29, 2022
    Inventors: Kook Hyun HAN, Eun Jun Park, Kyung Bin Yoo, Duck Chul Hwang
  • Patent number: 11538807
    Abstract: A semiconductor device and a method for fabricating the same, the device including an active pattern extending in a first direction on a substrate; a field insulating film surrounding a part of the active pattern; a first gate structure extending in a second direction on the active pattern and the field insulating film, a second gate structure spaced apart from the first gate structure and extending in the second direction on the active pattern and the field insulating film; and a first device isolation film between the first and second gate structure, wherein a side wall of the first gate structure facing the first device isolation film includes an inclined surface having an acute angle with respect to an upper surface of the active pattern, and a lowermost surface of the first device isolation film is lower than or substantially coplanar with an uppermost surface of the field insulating film.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eui Chul Hwang, Ju Youn Kim, Hyung Joo Na, Bong Seok Suh, Sang Min Yoo, Joo Ho Jung, Sung Moon Lee
  • Publication number: 20220376384
    Abstract: Proposed is a smart antenna module for a vehicle in which a plurality of cellular antennas are mounted in a non-ground area and spaced apart from a ground pattern to minimize mutual interference. In the proposed smart antenna module for a vehicle, a first antenna is disposed in a ground area of a base substrate, the cellular antennas are disposed in a non-ground area of the base substrate, and the cellular antennas are electrically connected to the ground area of the lower surface of the base substrate.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 24, 2022
    Applicant: AMOTECH CO., LTD.
    Inventor: Chul HWANG
  • Patent number: 11487323
    Abstract: Disclosed is an electronic device. The electronic device according to an embodiment may include an ultrasonic sensor and a processor electrically connected to the ultrasonic sensor. The processor may be configured to obtain a noise signal at a periphery of the electronic device, via the ultrasonic sensor, to determine an attribute of a first ultrasonic signal oscillated by the ultrasonic sensor, based on the obtained noise signal, and to obtain fingerprint information based on the second ultrasonic signal obtained via the ultrasonic sensor and the determined attribute. Moreover, various embodiment found through the disclosure are possible.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: November 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Geol Baek, Moon Soo Kim, Jae Hyung Park, Chi Hyun Cho, Yun Jang Jin, Ho Chul Hwang
  • Patent number: 11488412
    Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Dae Lee, Seung Hyun Moon, Dong Wook Yang, Hee Chul Hwang, Deok Hwa Woo, Young Eun Lee
  • Publication number: 20220336788
    Abstract: A lithium secondary battery comprises a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separator interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide including a continuous concentration gradient in at least one region between a central portion and a surface portion. The second cathode active material particle includes a constant concentration composition.
    Type: Application
    Filed: May 9, 2022
    Publication date: October 20, 2022
    Inventors: Duck Chul HWANG, Kyung Bin YOO, Kook Hyun HAN
  • Publication number: 20220311142
    Abstract: The present invention suggests a multi-band patch antenna in which an antenna pin is inserted into a single-band patch antenna, so that the multi-band patch antenna requires a minimum mounting space and can resonate in both the existing frequency bands and the V2X frequency band. The suggested multi-band patch antenna comprises: a base substrate through which a first through-hole and a second through-hole are formed; an upper patch and a lower patch arranged on the upper and lower surfaces of the base substrate, respectively; an inner conductor disposed on the inner wall surface of the first through-hole to electrically connect the upper patch to the lower patch; an antenna pin extending through the first through-hole, and including an end part disposed above the base substrate; and a first feed pin extending through the second through-hole.
    Type: Application
    Filed: August 25, 2020
    Publication date: September 29, 2022
    Applicant: AMOTECH CO., LTD.
    Inventors: Chul HWANG, Sango KIM, Injo JEONG, Habin BONG, Yechan CHOI, Injoo KIM, Hangyeul KIM, Piljung JEONG, Hong-Woo KIM
  • Publication number: 20220255225
    Abstract: Presented is a UWB antenna module configured to implement omni-directional characteristics with respect to bearings even when mounted on a metal ground plane. The presented UWB antenna module comprises: a base sheet; a radiation pattern formed on a front surface of the base sheet; and a ground pattern formed on the front surface of the base sheet and arranged to surround the radiation pattern.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 11, 2022
    Applicant: AMOTECH CO., LTD.
    Inventor: Chul HWANG
  • Patent number: 11390053
    Abstract: A display device in one example includes a display panel, a supporting frame supporting the display panel, and an adhesive between the display panel and the supporting frame. The supporting frame includes a case, and a thermal shape changing part constituting a portion of the case. The thermal shape changing part includes a shape memory material.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 19, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: A-Ram Sohn, Jae-Chul Hwang, Won-Bong Jang, Hye-Ran Park
  • Patent number: D961502
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 23, 2022
    Assignee: SIGNET EV INC.
    Inventor: Ho Chul Hwang
  • Patent number: D976812
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: January 31, 2023
    Assignee: SIGNET EV INC.
    Inventor: Ho Chul Hwang