Patents by Inventor Chang-Wook Lee

Chang-Wook 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: 11930986
    Abstract: A dishwasher having a structure to prevent deformation of an accommodating container includes a main body, a tub provided inside the main body and including an opening, a door provided to open and close the opening of the tub, a guide rail mounted on an inner wall of the tub, an accommodating container provided to accommodate tableware and be movable along the guide rail, and including a front portion facing the opening and a rear portion, at least one roller rotatably mounted on the rear portion of the accommodating container so that the accommodating container is movable along the guide rail, and a support holder formed on the front portion of the accommodating container to be supported on at least one of the guide rail and the inner wall of the tub.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Johannes Büsing, Woo Jin Shin, Chang Wook Lee, Sang Soo Choi
  • Patent number: 11933207
    Abstract: Exhaust systems are described. In examples, an exhaust flow path couples exhaust ports with one or more turbochargers of an engine. The exhaust flow path may have a portion flowing through a cylinder head (e.g., couplable to the exhaust ports) and a portion flowing through an exhaust manifold (couplable to the cylinder head and the turbocharger(s)). The flow paths may be shaped to reduce the sharpness of turns between the exhaust ports and the turbocharger(s). For example, curves along the flow path may be less than 90 degrees or have a minimum curve radius, which may vary along the flow path. Additionally, at least two, independent flow paths may exist between the exhaust ports and the turbocharger(s). The cross-sectional shape of any part of the flow path may be elliptical, including at inlets and outlets.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: March 19, 2024
    Assignee: PACCAR Inc
    Inventors: Greg Bonsen, Paul Hancock, Huateng Yang, Chang-Wook Lee, Olivier Lebastard
  • Publication number: 20240086603
    Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
  • Publication number: 20240072423
    Abstract: An antenna assembly for use with a wireless communication wearable device. The antenna assembly includes a circuit board with components extending from a surface thereof. The antenna assembly has a first radiator antenna and a second radiator antenna which extends about the perimeter of the first antenna. A first slot is provided between the first radiator antenna and the second radiator antenna. The first slot separates the first radiator antenna from the second radiator antenna.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Applicants: TE Connectivity Solutions GmbH, Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Chang Hyun LEE, Jung-Hoon Kim, Dong Wook Park, Kiran Vanjani
  • Publication number: 20240060443
    Abstract: Exhaust systems are described. In examples, an exhaust flow path couples exhaust ports with one or more turbochargers of an engine. The exhaust flow path may have a portion flowing through a cylinder head (e.g., couplable to the exhaust ports) and a portion flowing through an exhaust manifold (couplable to the cylinder head and the turbocharger(s)). The flow paths may be shaped to reduce the sharpness of turns between the exhaust ports and the turbocharger(s). For example, curves along the flow path may be less than 90 degrees or have a minimum curve radius, which may vary along the flow path. Additionally, at least two, independent flow paths may exist between the exhaust ports and the turbocharger(s). The cross-sectional shape of any part of the flow path may be elliptical, including at inlets and outlets.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: PACCAR Inc
    Inventors: Greg BONSEN, Paul HANCOCK, Huateng YANG, Chang-Wook LEE, Olivier LEBASTARD
  • Publication number: 20230417168
    Abstract: Exhaust systems are described. In examples, an exhaust flow path couples exhaust ports with one or more turbochargers of an engine. The exhaust flow path may have a portion flowing through a cylinder head (e.g., couplable to the exhaust ports) and a portion flowing through an exhaust manifold (couplable to the cylinder head and the turbocharger(s)). The flow paths may be shaped to reduce the sharpness of turns between the exhaust ports and the turbocharger(s). For example, curves along the flow path may be less than 90 degrees or have a minimum curve radius, which may vary along the flow path. Additionally, at least two, independent flow paths may exist between the exhaust ports and the turbocharger(s). The cross-sectional shape of any part of the flow path may be elliptical, including at inlets and outlets.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Applicant: PACCAR Inc
    Inventors: Greg BONSEN, Paul HANCOCK, Huateng YANG, Chang-Wook LEE, Olivier LEBASTARD
  • Publication number: 20230347444
    Abstract: A hot-stamped article and a method of manufacturing same use a tailor welded blank (TWB) method capable of controlling the microstructure of a weld portion to prevent fracture of the weld portion. The method includes: preparing a first sheet and a second sheet having different upper austenite transformation temperatures (A3 temperatures); welding the first sheet and the second sheet using a TWB method to prepare a welded sheet obtained as a result of the first sheet and the second sheet being welded to each other via a weld portion; and hot-stamping the welded sheet heated within a temperature range between an A3 temperature of the first sheet and an A3 temperature of the second sheet.
    Type: Application
    Filed: June 7, 2023
    Publication date: November 2, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Wook Lee, Yeon Jung Hwang
  • Patent number: 11737639
    Abstract: A dishwasher includes a main body, a tub provided in the inside of the main body, a basket provided in the inside of the tub to store dishes, an injection unit configured to spray wash water to wash dishes in the basket, and a circulation pump configured to circulate wash water, a sump arranged on a lower surface of the tub, and a connector provided to connect the circulation pump to the injection unit and having a tubular shape. The sump includes a coupling portion extending upward from the lower surface of the tub, and the connector and the injection unit are connected to each other in the inside of the tub by being coupled to the coupling portion.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Johannes Büsing, Chang Wook Lee, Kyu Ha Lee
  • Patent number: 11724338
    Abstract: A hot-stamped article and method of manufacturing same use a tailor welded blank (TWB) method capable of controlling the microstructure of a weld portion to prevent fracture of the weld portion. The hot-stamped article is manufactured by welding a first sheet and a second sheet made of different kinds of materials to each other using the TWB method and hot-stamping a welded sheet. The first sheet and the second sheet have different upper austenite transformation temperatures (A3 temperatures), the first sheet and the second sheet are welded to each other via a weld portion, each of the first sheet and the weld portion has a composite structure comprising ferrite, bainite, and martensite, and the second sheet has a martensite structure.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 15, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Wook Lee, Yeon Jung Hwang
  • Publication number: 20230193417
    Abstract: Disclosed is a hot stamped part, which has improved toughness while maintaining high strength and high hardness, and a method for manufacturing the same. The hot stamped part is formed by performing hot stamping using an iron-based alloy, and includes a reinforced portion formed to have a martensite structure, a softened portion formed to have ferrite and bainite structures, and a transition portion formed between the reinforced portion and the softened portion. The reinforced portion, the transition portion and the softened portion are formed in the thickness direction of the hot stamped part.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Inventors: Yeon Jung Hwang, Jae Ik Yoon, Chang Wook Lee
  • Patent number: 11649521
    Abstract: A hot stamping component and a manufacturing method thereof include: (a) preparing a blank including 0.27 to 0.33 wt % of carbon (C), more than 0 and 0.40 wt % or less of silicon (Si), 1.10 to 1.60 wt % of manganese (Mn), more than 0 and 0.030 wt % or less of phosphorus (P), more than 0 and 0.015 wt % or less of sulfur (S), 0.10 to 0.60 wt % of chromium (Cr), more than 0 and 0.1 wt % or less of titanium (Ti), and 0.0008 to 0.0050 wt % of boron (B); (b) heat-treating the blank; and (c) molding the heat-treated blank and cooling the molded blank. The component and method may stably provide high strength by minimizing hydrogen charging in a hot stamping manufacturing process and preventing hydrogen delayed fracture due to the hydrogen charging.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: May 16, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang-Wook Lee, Yeon-Jung Hwang
  • Patent number: 11471023
    Abstract: Provided is a dishwasher with a structure capable of improving ease of use. The dishwasher may be installed in a built-in type in a system kitchen including a cabinet having an accommodating space and a counter positioned on the cabinet and including an opening. The dishwasher may include: a tub including a front opening; a front door configured to open or close the front opening; a top door configured to open or close the opening; a basket positioned in the inside of the tub, the basket being taken out through the front opening; and an additional basket being taken out through the opening.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Soo Choi, Sung Jin Kim, Chang Wook Lee, Seung Gee Hong
  • Patent number: 11412915
    Abstract: A dish washer includes: a main body; a tub positioned in the inside of the main body, wherein an object that is to be washed is washed in the tub; and an accommodating container positioned in the inside of the tub and accommodating the object that is to be washed, wherein the accommodating container includes: a frame forming an accommodating space in which the object that is to be washed is accommodated; and a shaft rotatably supporting a roller configured to move the accommodating container, wherein both ends of the shaft are supported on the frame.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 16, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Johannes Büsing, Woo Jin Shin, Chang Wook Lee, Sang Soo Choi
  • Publication number: 20220161360
    Abstract: A hot-stamped article and method of manufacturing same use a tailor welded blank (TWB) method capable of controlling the microstructure of a weld portion to prevent fracture of the weld portion. The hot-stamped article is manufactured by welding a first sheet and a second sheet made of different kinds of materials to each other using the TWB method and hot-stamping a welded sheet. The first sheet and the second sheet have different upper austenite transformation temperatures (A3 temperatures), the first sheet and the second sheet are welded to each other via a weld portion, each of the first sheet and the weld portion has a composite structure comprising ferrite, bainite, and martensite, and the second sheet has a martensite structure.
    Type: Application
    Filed: April 30, 2021
    Publication date: May 26, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Wook Lee, Yeon Jung Hwang
  • Publication number: 20220162722
    Abstract: A hot stamping component and a manufacturing method thereof include: (a) preparing a blank including 0.27 to 0.33 wt % of carbon (C), more than 0 and 0.40 wt % or less of silicon (Si), 1.10 to 1.60 wt % of manganese (Mn), more than 0 and 0.030 wt % or less of phosphorus (P), more than 0 and 0.015 wt % or less of sulfur (S), 0.10 to 0.60 wt % of chromium (Cr), more than 0 and 0.1 wt % or less of titanium (Ti), and 0.0008 to 0.0050 wt % of boron (B); (b) heat-treating the blank; and (c) molding the heat-treated blank and cooling the molded blank. The component and method may stably provide high strength by minimizing hydrogen charging in a hot stamping manufacturing process and preventing hydrogen delayed fracture due to the hydrogen charging.
    Type: Application
    Filed: May 7, 2021
    Publication date: May 26, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang-Wook Lee, Yeon-Jung Hwang
  • Publication number: 20220154305
    Abstract: Disclosed is a hot stamped part, which has improved toughness while maintaining high strength and high hardness, and a method for manufacturing the same. The hot stamped part is formed by performing hot stamping using an iron-based alloy, and includes a reinforced portion formed to have a martensite structure, a softened portion formed to have ferrite and bainite structures, and a transition portion formed between the reinforced portion and the softened portion. The reinforced portion, the transition portion and the softened portion are formed in the thickness direction of the hot stamped part.
    Type: Application
    Filed: May 4, 2021
    Publication date: May 19, 2022
    Inventors: Yeon Jung Hwang, Jae Ik Yoon, Chang Wook Lee
  • Patent number: 11324381
    Abstract: A dish washer including: a main body; a tub; a basket configured to receive dishes; a first sprayer and a second sprayer configured to spray water toward the basket; a circulating pump configured to circulate water; and an alternating device configured to provide water from the circulating pump to at least one of the first sprayer or the second sprayer, wherein the alternating device includes a housing including a communicating portion to receive water, and a distributor rotatably positioned inside the housing and formed in the shape of a cylinder, and the distributor includes an inlet portion corresponding to the communicating portion, and at least one distributing hole formed in an outer circumference of the distributor, providing water to at least the one sprayer or the second sprayer, and a guide positioned inside of the distributor including a curved surface for guiding water to the at least one distributing hole.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Johannes Büsing, Chang Wook Lee, Ji Sun Yang
  • Patent number: 11324383
    Abstract: A dishwasher including a nozzle capable of widening an injection region of washing water includes a main body, a washing tub provided inside the main body, and a nozzle configured to inject washing water into the inside of the washing tub, wherein the nozzle includes an injection port through which the washing water is injected, a guide portion configured to spirally guide the washing water injected through the injection port, and a leg portion configured to connect the guide portion and the injection port.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Wook Lee, Eun Seok Kim
  • Patent number: 11272827
    Abstract: A dish washing machine including a cabinet configured to form an exterior, a washing tub provided in the cabinet to wash dishes, and a jet nozzle configured to jet washing water to the washing tub, wherein the jet nozzle includes a plurality of nozzle inner walls provided therein to form a passage through which the washing water passes and having a plurality of passage inner walls provided to have arc shapes in section vertical to a flow direction of the washing water. Due to such configuration, a jetting force may be enhanced and washing efficiency may be also improved.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Wook Lee, Min Ho Jung, Hyun Dong Jung, Chan Young Park, Soo Hyung Yoo, Seung Gee Hong
  • Patent number: D1019504
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: March 26, 2024
    Assignee: PACCAR Inc
    Inventors: Greg Bonsen, Paul Hancock, Huateng Yang, Chang-Wook Lee, Olivier Lebastard