Patents by Inventor Chang Hwan Lee

Chang Hwan 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).

  • Patent number: 11763066
    Abstract: A method determines a degree of compatibility of a web content with a vehicle display device. The method includes steps of: (a) the compatibility-determining server generating a specific render tree by referring to specific web content information; (b) the compatibility-determining server determining whether the specific web page is compatible with the vehicle display device according to a verifying scenario, wherein the verifying scenario is configured as a predetermined program by referring to at least part of (i) at least one first component included in the specific render tree and (ii) at least one second component included in the specific specification information; and (c) in response to determining that the specific web page is compatible, the compatibility-determining server performing or supporting another device to perform a process of displaying the specific web page on a display of the vehicle display device.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: September 19, 2023
    Inventors: Chang Hwan Lee, Young Min Kim
  • Patent number: 11692890
    Abstract: A torque index sensor including a substrate; a first cover which accommodates the circuit board; a first hall sensor and a second hall sensor which are disposed on the circuit board; a magnet seating member which is coupled to the stator; a second magnet which is coupled to the magnet seating member; and a second cover made of a metal material coupled with the first cover. Further, the magnet seating member and the second magnet are disposed between the first cover and the second cover, the second cover comprises: an upper plate on which a through hole is formed; and a side plate which extends in the rotational axis direction from the upper plate, and the side plate comprises a groove formed at a position corresponding to the hall sensor.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: July 4, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan Lee, Sung Wook Byun
  • Publication number: 20230169258
    Abstract: A method determines a degree of compatibility of a web content with a vehicle display device. The method includes steps of: (a) the compatibility-determining server generating a specific render tree by referring to specific web content information; (b) the compatibility-determining server determining whether the specific web page is compatible with the vehicle display device according to a verifying scenario, wherein the verifying scenario is configured as a predetermined program by referring to at least part of (i) at least one first component included in the specific render tree and (ii) at least one second component included in the specific specification information; and (c) in response to determining that the specific web page is compatible, the compatibility-determining server performing or supporting another device to perform a process of displaying the specific web page on a display of the vehicle display device.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 1, 2023
    Applicant: Obigo Inc.
    Inventors: Chang Hwan LEE, Young Min KIM
  • Patent number: 11626306
    Abstract: A method for analyzing a semiconductor device includes repeatedly etching an entire surface of a wafer at a same etch rate by a target depth to expose a next surface of the wafer. The method includes obtaining two-dimensional structure information from each repeatedly etched surface of the wafer and serially stacking the repeatedly obtained two-dimensional structure information to generate a three-dimensional image.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: April 11, 2023
    Assignee: SK hynix Inc.
    Inventors: Jin Hee Han, Byoung Ho Lee, Chang Hwan Lee, Jung Min Lee, Seong Min Ma
  • Publication number: 20220297753
    Abstract: The present invention provides a sensing device comprising: a rotor; and a stator in which the rotor is disposed, wherein the stator comprises a stator tooth and a stator body, the stator tooth comprises a first stator tooth and a second stator tooth disposed inside the first stator tooth, at least one of the first stator tooth and the second stator tooth includes a tip protruding toward the center axis of the stator, and the tip is disposed at one surface of the stator body.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 22, 2022
    Inventors: Chang Hwan LEE, Ye Won KWON
  • Publication number: 20220277975
    Abstract: A method for analyzing a semiconductor device includes repeatedly etching an entire surface of a wafer at a same etch rate by a target depth to expose a next surface of the wafer. The method includes obtaining two-dimensional structure information from each repeatedly etched surface of the wafer and serially stacking the repeatedly obtained two-dimensional structure information to generate a three-dimensional image.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 1, 2022
    Applicant: SK hynix Inc.
    Inventors: Jin Hee HAN, Byoung Ho LEE, Chang Hwan LEE, Jung Min LEE, Seong Min MA
  • Patent number: 11385077
    Abstract: An embodiment provides a sensing device comprising: a first cover; a second cover coupled with the first cover; a rotor disposed at the second cover; a first magnet disposed between the second cover and the rotor; a stator disposed between the first magnet and the second cover; a seating part disposed between the first cover and the rotor; a second magnet disposed on the seating part; a circuit board disposed on a bottom surface of the second cover; and a first hall sensor and a second hall sensor disposed on the circuit board, wherein the first cover comprises an upper plate having an opening and a side plate extending downward from the upper plate, and the side plate of the first cover comprises a first groove formed at a position corresponding to the second hall sensor and a second groove spaced apart from the first groove.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: July 12, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan Lee, Sung Wook Byun
  • Patent number: 11295970
    Abstract: A system for analyzing a semiconductor device includes an etching module, an analyzing module, and a computing module. The etching module may repeatedly etch an entire surface of a wafer at a same etch rate to expose a next surface of the wafer at a next depth where an object to be analyzed exits. The analyzing module may obtain two-dimensional structure information from each repeatedly etched surface of the wafer. The computing module may serially stack the repeatedly obtained two-dimensional structure information to generate a three-dimensional image.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: April 5, 2022
    Assignee: SK hynix Inc.
    Inventors: Jin Hee Han, Byoung Ho Lee, Chang Hwan Lee, Jung Min Lee, Seong Min Ma
  • Publication number: 20210262880
    Abstract: A torque index sensor may be provided which comprises: a substrate; a first cover which accommodates the circuit board; a first hall sensor and a second hall sensor which are disposed on the circuit board; a magnet seating member which is coupled to the stator; a second magnet which is coupled to the magnet seating member; and a second cover made of a metal material coupled with the first cover, wherein the magnet seating member and the second magnet are disposed between the first cover and the second cover, wherein the second cover comprises: an upper plate on which a through hole is formed; and a side plate which extends in the rotational axis direction from the upper plate, and wherein the side plate comprises a groove formed at a position corresponding to the hall sensor.
    Type: Application
    Filed: May 4, 2021
    Publication date: August 26, 2021
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan LEE, Sung Wook BYUN
  • Patent number: 11045990
    Abstract: The present invention relates to a three-dimensional (3D) pen with a novel structure which enables filaments having various colors to be easily selected and used. According to the 3D pen according to the present invention, a user laterally rotates the adjustment lever (25) to allow the driving motor (24) to be connected to different transfer rollers (22), thereby selectively transferring and discharging a plurality of different filaments (1) forward. Therefore, the 3D pen has a very simple structure and has an advantage in that the filaments (1) having various colors can be easily selected to manufacture objects having various colors.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: June 29, 2021
    Inventor: Chang Hwan Lee
  • Patent number: 11022510
    Abstract: A torque index sensor may be provided which comprises: a substrate; a first cover which accommodates the circuit board; a first hall sensor and a second hall sensor which are disposed on the circuit board; a magnet seating member which is coupled to the stator; a second magnet which is coupled to the magnet seating member; and a second cover made of a metal material coupled with the first cover, wherein the magnet seating member and the second magnet are disposed between the first cover and the second cover, wherein the second cover comprises: an upper plate on which a through hole is formed; and a side plate which extends in the rotational axis direction from the upper plate, and wherein the side plate comprises a groove formed at a position corresponding to the hall sensor.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: June 1, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan Lee, Sung Wook Byun
  • Publication number: 20210080288
    Abstract: An embodiment provides a sensing device comprising: a first cover; a second cover coupled with the first cover; a rotor disposed at the second cover; a first magnet disposed between the second cover and the rotor; a stator disposed between the first magnet and the second cover; a seating part disposed between the first cover and the rotor; a second magnet disposed on the seating part; a circuit board disposed on a bottom surface of the second cover; and a first hall sensor and a second hall sensor disposed on the circuit board, wherein the first cover comprises an upper plate having an opening and a side plate extending downward from the upper plate, and the side plate of the first cover comprises a first groove formed at a position corresponding to the second hall sensor and a second groove spaced apart from the first groove.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 18, 2021
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan LEE, Sung Wook BYUN
  • Publication number: 20210028033
    Abstract: A system for analyzing a semiconductor device includes an etching module, an analyzing module, and a computing module. The etching module may repeatedly etch an entire surface of a wafer at a same etch rate to expose a next surface of the wafer at a next depth where an object to be analyzed exits. The analyzing module may obtain two-dimensional structure information from each repeatedly etched surface of the wafer. The computing module may serially stack the repeatedly obtained two-dimensional structure information to generate a three-dimensional image.
    Type: Application
    Filed: October 29, 2019
    Publication date: January 28, 2021
    Applicant: SK hynix Inc.
    Inventors: Jin Hee HAN, Byoung Ho LEE, Chang Hwan LEE, Jung Min LEE, Seong Min MA
  • Patent number: 10762096
    Abstract: Mail service method for searching for mail in a mail service system. At least one of a plurality of items configuring a format of mail data is set as at least one card item. A keyword is received, and for mail data that includes the keyword is searched for. A separate mail list for the at least one card item is configured by selecting mail data including the keyword in the at least one card item, and creating a mail card including a tag indicating the at least one card item and a link to the configured separate mail list. A search result that including the created mail card is provided.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: September 1, 2020
    Assignee: NAVER CORPORATION
    Inventors: Jung Sub Shin, Chang Hwan Lee, Eungyo Jung, Jinsu Park, Yeon Ah Park, Myungpyo Shim, Sungwoo Choo, Hye Ryun An
  • Patent number: 10739215
    Abstract: The present invention provides a sensor apparatus including a rotor, a stator disposed outside the rotor, a sensing part configured to measure a magnetic field generated between the rotor and the stator, a housing which accommodates the rotor and the stator, a sensor module disposed in the housing, and a protrusion which protrudes from an outer circumferential surface of the housing and includes a spherical surface in point contact with an external fixing part.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: August 11, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Chang Hwan Lee
  • Patent number: 10583858
    Abstract: Provided is a power steering sensor assembly which is capable of maintaining a stable coupling between a sensing device and a housing without using a separate auxiliary member, and is mounted in an electric power steering system. The power steering sensor assembly includes a sensing device including a plurality of coupling projections formed on an outer circumferential surface thereof, and a first housing having the sensing device housed therein and including a plurality of coupling grooves formed on an inner circumferential surface thereof, the coupling grooves each having an upper end which is opened. When the sensing device is housed in the first housing, the coupling projections of the sensing device are inserted into the coupling grooves of the first housing, respectively, such that the sensing device is coupled to the first housing without being moved in a radial direction and an axial direction.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 10, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Chang Hwan Lee
  • Publication number: 20190301954
    Abstract: A torque index sensor may be provided which comprises: a substrate; a first cover which accommodates the circuit board; a first hall sensor and a second hall sensor which are disposed on the circuit board; a magnet seating member which is coupled to the stator; a second magnet which is coupled to the magnet seating member; and a second cover made of a metal material coupled with the first cover, wherein the magnet seating member and the second magnet are disposed between the first cover and the second cover, wherein the second cover comprises: an upper plate on which a through hole is formed; and a side plate which extends in the rotational axis direction from the upper plate, and wherein the side plate comprises a groove formed at a position corresponding to the hall sensor.
    Type: Application
    Filed: November 8, 2017
    Publication date: October 3, 2019
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Chang Hwan LEE, Sung Wook BYUN
  • Publication number: 20190178733
    Abstract: The present invention provides a sensor apparatus including a rotor, a stator disposed outside the rotor, a sensing part configured to measure a magnetic field generated between the rotor and the stator, a housing which accommodates the rotor and the stator, a sensor module disposed in the housing, and a protrusion which protrudes from an outer circumferential surface of the housing and includes a spherical surface in point contact with an external fixing part.
    Type: Application
    Filed: May 17, 2017
    Publication date: June 13, 2019
    Inventor: Chang Hwan LEE
  • Patent number: 10315694
    Abstract: The disclosure relates to a torque sensor module comprising: a rotor (including a rotor holder and a first magnet); and a stator formed by a plurality of unit stators to be divided. Each of the unit stators separately includes a head part and a tooth that extends in a bent direction from the corresponding head part.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 11, 2019
    Assignee: LG Innotek Co., Ltd.
    Inventor: Chang Hwan Lee
  • Patent number: D1003946
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: November 7, 2023
    Assignee: Netmarble Corporation
    Inventor: Chang Hwan Lee