Patents by Inventor Won-Sik Lee

Won-Sik 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: 10881257
    Abstract: The present disclosure includes a main body, a cleaning tool assembly connected to the main body to be movable in at least one axial direction, a handle part connected to the main body and configured to receive an applied force of a user, a detection part provided in the handle part and configured to detect a magnitude and a direction of the force applied to the handle part, and a control part configured to control the movement direction of the cleaning tool assembly based on the detected direction of the force and to control the movement distance of the cleaning tool assembly based on the detected magnitude of the force. In this way, the steering performance may be improved by reducing a horizontal load felt by a user when the user holds and moves the handle of the cleaner, fatigue felt when performing the cleaning operation may be removed by removing a vertical load applied by the handle, and convenience may be improved.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: January 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung Chan Kim, Kyung Han Jeong, Shin Kim, Won Min Lee, Eun Sung Kim, Sang Sik Yoon, Byoung In Lee, Woo Ram Oh, Yeon Kyu Jeong, Jae Young Jung
  • Publication number: 20200411826
    Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the separator includes a crosslinked polyolefin porous membrane having a shutdown temperature of 125 to 145° C., a difference between the shutdown temperature and a meltdown temperature ranging between 20 and 80° C., and a meltdown temperature that is higher by 5 to 35° C. than a self-heating temperature of the positive electrode. The lithium secondary battery according to the present disclosure has improvements in both safety and processing.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 31, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Joo-Sung Lee, Heon-Sik Song, Won-Sik Bae, Bi-Oh Ryu
  • Publication number: 20200407223
    Abstract: The present invention relates to a preparation method of trifluoroamine oxide comprising the steps of producing an intermediate product by reacting nitrogen trifluoride and nitrous oxide in the presence of a reaction catalyst; and producing trifluoroamine oxide by reacting the intermediate product with sodium fluoride in vacuum condition up to 100 mmHg.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 31, 2020
    Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, SK-MATERIALS CO., LTD., SK-MATERIALS CO., LTD.
    Inventors: Hong Suk Kang, In Joon Park, Soo Bok Lee, Won Wook So, Shin Hong Yook, Eun-ho Sohn, Beom Sik Kim, Junghun Kwak, Byunghyang Kwon
  • Publication number: 20200401129
    Abstract: A cleaning robot includes a navigator to move a main body, a remote controller to output a modulated infrared ray in accordance with a control command of a user and to form a light spot, a light receiver to receive the infrared ray from the remote controller, and a controller to control the navigator such that the main body tracks the light spot when the modulated infrared ray is received in accordance with the control command. Because the cleaning robot tracks a position indicated by the remote controller, a user may conveniently move the cleaning robot.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jea Yun So, Jin Hee Kim, Won Min Lee, Gwang Jin Jung, Sang Hwa Choi, Shin Kim, Sang Sik Yoon, Byoung In Lee, Hyun Soo Jung
  • Patent number: 10866694
    Abstract: An electronic device according to various embodiments of the present invention comprises: a first main body including a first surface and a second surface which faces the opposite direction to the first surface; a second main body including a third surface which faces the first surface of the first main body part when being folded in a first direction, and a fourth surface which faces the second surface of the first main body part when being folded in a second direction; a rotatable connection unit which connects at least a part of one side of the first main body part and at least a part of one side of the second main body part; a first display which is exposed to the first surface of the first main body part; a second display which is exposed to the third surface of the second main body part; a processor which is electrically connected to the first display and the second display; and a memory which is electrically connected to the processor.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 15, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hwan Kim, Yo-Han Lee, Hyun-Yeul Lee, Kyung-Wha Hong, Sun-Hee Moon, Won-Sik Lee, Seung-Yeon Chung, Hye-Min Ha
  • Patent number: 10854836
    Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Ho Kim, Won Sik Yoon, Jeong Hee Lee, Eun Joo Jang, Oul Cho
  • Publication number: 20200360725
    Abstract: Disclosed are an oral fixation device for radiation therapy and an oral fixation method in treatment of a lip cancer. The oral fixation device for radiation therapy includes a first spacer including a first insert inserted between a first lip portion and a first gum portion, and a teeth support coupled to the first spacer at a side of the first spacer disposed inwardly of an oral cavity, wherein teeth or a gum of a patient is supported on the teeth support, wherein a first spacer has a specific thickness to maintain a specific spacing between the first lip portion and the first gum portion, wherein the first lip portion includes a treatment target portion to be subjected to the radiation therapy.
    Type: Application
    Filed: January 18, 2020
    Publication date: November 19, 2020
    Applicant: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION
    Inventors: Won Sik CHOI, Woo Sang AHN, Seong Soo SHIN, Woo Suk LEE
  • Publication number: 20200365860
    Abstract: The present disclosure relates to a A method for manufacturing a crosslinked polyolefin separator and the crosslinked polyolefin separator obtained by the method are provided. The method includes (S1) mixing polyolefin, a diluting agent, an initiator and alkoxysilane containing a carbon-carbon double bonded group to an extruder, and then carrying out extrusion to obtain a silane-grafted polyolefin composition; (S2) molding and orienting the extruded silane-grafted polyolefin composition in the form of a sheet; (S3) introducing the oriented sheet to an extraction water bath containing a crosslinking catalyst to extract the diluting agent and perform aqueous crosslinking; and (S4) thermally fixing a resultant aqueous crosslinked product. The method can provide a separator having a high meltdown temperature and improved heat shrinkage.
    Type: Application
    Filed: September 3, 2019
    Publication date: November 19, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Bi-Oh Ryu, Won-Sik Bae, Joo-Sung Lee, A-Young Lee
  • Patent number: 10840225
    Abstract: A package-on-package and a package connection system including the same are provided. The package-on-package includes a first semiconductor package including a first semiconductor chip, and a second semiconductor package disposed on the first semiconductor package and including a second semiconductor chip electrically connected to the first semiconductor chip. The first semiconductor chip includes an application processor (AP) including a first image signal processor (ISP), and the second semiconductor chip includes a second image signal processor (ISP).
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 17, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Kwan Lee, Young Sik Hur, Won Wook So
  • Publication number: 20200357777
    Abstract: A package-on-package and a package connection system including the same are provided. The package-on-package includes a first semiconductor package including a first semiconductor chip, and a second semiconductor package disposed on the first semiconductor package and including a second semiconductor chip electrically connected to the first semiconductor chip. The first semiconductor chip includes an application processor (AP) including a first image signal processor (ISP), and the second semiconductor chip includes a second image signal processor (ISP).
    Type: Application
    Filed: August 5, 2019
    Publication date: November 12, 2020
    Inventors: Young Kwan LEE, Young Sik HUR, Won Wook SO
  • Publication number: 20200348553
    Abstract: A liquid crystal display includes: a first display panel including a transistor; a second display panel disposed facing the first display panel, the second display panel including: a light blocking member overlapping the transistor, the light blocking member including: a first portion having a first thickness; and a second portion having a second thickness; and a liquid crystal layer disposed between the first display panel and the second display panel, wherein the second thickness is thinner than the first thickness.
    Type: Application
    Filed: February 13, 2020
    Publication date: November 5, 2020
    Inventors: Won Jun LEE, You Sik SHIN, Youn Hak JEONG, Hak Sun CHANG, Jin Joo HA
  • Publication number: 20200342869
    Abstract: An electronic device according to various embodiments may include: a microphone; a speaker; a wireless communication circuit set to support wireless fidelity (Wi-Fi); a processor operatively connected to the microphone, the speaker, and the wireless communication circuit, and a memory operatively connected to the processor, wherein the memory can store instructions which upon being executed cause the processor to: receive first user utterances through the microphone; transmit first data, including first voice data related to the first user utterances and first metadata related to the first voice data, to an external server through the wireless communication circuit; and receive, from the external server through the wireless communication circuit, a response related to the electronic device selected as an input device for a voice-based service.
    Type: Application
    Filed: October 16, 2018
    Publication date: October 29, 2020
    Inventors: Yo-Han LEE, Won-Sik SONG, Jung-Kyun RYU, Jun Ho PARK, Jong Chan WON, Seungyong LEE, Young-Su LEE
  • Patent number: 10809714
    Abstract: A cleaning robot includes a navigator to move a main body, a remote controller to output a modulated infrared ray in accordance with a control command of a user and to form a light spot, a light receiver to receive the infrared ray from the remote controller, and a controller to control the navigator such that the main body tracks the light spot when the modulated infrared ray is received in accordance with the control command. Because the cleaning robot tracks a position indicated by the remote controller, a user may conveniently move the cleaning robot.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jea Yun So, Jin Hee Kim, Won Min Lee, Gwang Jin Jung, Sang Hwa Choi, Shin Kim, Sang Sik Yoon, Byoung In Lee, Hyun Soo Jung
  • Patent number: 10792982
    Abstract: An air vent structure may include spacers mounted at sides of an outlet of an air duct; a single horizontal wing, and an upper and lower horizontal wings that have hinge grooves to which hinge pins of the spacer are inserted and formed in front side portions of the horizontal wings and positioned in horizontally in the outlet, the upper and lower horizontal wings being disposed above and below the single horizontal wing; a main link having a front end portion which a first hinge end portion hinged to a rear portion of both side surfaces of the respective horizontal wings and a rear end portion in which a second hinge end portion is formed at upper and lower portions in the rear end portion; an auxiliary wing connected to the slot of the spacer and the second hinge end portion of the main link; and a dummy wing covering the spacer.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 6, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Mobis Co., Ltd., NIFCO KOREA Inc.
    Inventors: Young Ju Lee, Jang Hyeok Ahn, Choong Yeul Kim, Young Rok Lee, Keun Sig Lim, Dae Ig Jung, Jae Seob Choi, Won Sik Kim, Woo Hyuk Kim
  • Patent number: 10791313
    Abstract: Disclosed is a method and apparatus for providing an omni-directional stereoscopic image based on layer projection. According to an embodiment of the present disclosure, there is provided a method of providing an omni-directional stereoscopic image based on layer projection, the method including: obtaining a spatial-information-point set; and generating a layer image based on a spatial-information-point subset constructed for each of multiple layers, the layer image corresponding to each of the multiple layers, wherein the spatial-information-point subset constructed for each of two consecutive layers includes one or more duplicate spatial information points.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: September 29, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Joung Il Yun, Sang Woon Kwak, Kug Jin Yun, Jin Hwan Lee, Won Sik Cheong
  • Publication number: 20200302575
    Abstract: Disclosed herein is a method of creating an image stitching workflow including acquiring 360-degree virtual reality (VR) image parameters necessary to makes a request for image stitching and create the image stitching workflow, acquiring a list of functions applicable to the image stitching workflow, creating the image stitching workflow based on functions selected from the list of functions, determining the number of media processing entities necessary to perform tasks configuring the image stitching workflow and generating a plurality of media processing entities according to the determined number of media processing entities, and allocating the tasks configuring the image stitching workflow to the plurality of media processing entities.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 24, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hee Kyung LEE, Gi Mun UM, Jeong Il SEO, Seong Yong LIM, Joung Il YUN, Won Sik CHEONG
  • Publication number: 20200294917
    Abstract: A package-on-package includes a first semiconductor package including a first semiconductor chip and a second semiconductor package, disposed on the first semiconductor package, including a second semiconductor chip electrically connected to the first semiconductor chip. Each of the first and second semiconductor chips includes one or more units. The number of units of the first semiconductor chip is greater than the number of units of the second semiconductor chip. The one or more units of the first semiconductor chip and the one or more units of the second semiconductor chip implement a function of an application processor chip.
    Type: Application
    Filed: May 15, 2019
    Publication date: September 17, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Kwan LEE, Yun Tae LEE, Young Sik HUR, Ho Kwon YOON, Won Wook SO
  • Patent number: 10777742
    Abstract: Methods, systems, and devices are disclosed for implementing semiconductor memory using variable resistance elements for storing data. In one aspect, an electronic device is provided to comprise a semiconductor memory unit including: a substrate; an interlayer dielectric layer disposed over the substrate; and a variable resistance element including a seed layer formed over the interlayer dielectric layer, a first magnetic layer formed over the seed layer, a tunnel barrier layer formed over the first magnetic layer, and a second magnetic layer formed over the tunnel barrier layer, wherein the seed layer includes a conductive material having a metallic property and an oxygen content of 1% to approximately 10%.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 15, 2020
    Assignee: SK hynix Inc.
    Inventors: Won-Joon Choi, Ki-Seon Park, Cha-Deok Dong, Bo-Mi Lee, Guk-Cheon Kim, Seung-Mo Noh, Min-Suk Lee, Chan-Sik Park, Jae-Heon Kim, Choi-Dong Kim, Jae-Hong Kim, Yang-Kon Kim, Jong-Koo Lim
  • Patent number: 10763950
    Abstract: Provided are a 5G in-building relay system and a 5G in-building relay method for sharing an RF cable to provide a 5G communication service in the building. The 5G in-building relay system includes: a 5G signal providing device for converting RF signals of a 5G into IF signals and providing the IF signals through a pre-built RF cable of the building; an MHU for receiving and transmitting the IF signals; a coupling device for combining the IF signals with radio signals other than the 5G received from an ROU pre-built in the building and providing the combined signals through the RF cable; a distribution device for receiving the combined signals and separating and distributing the IF signals of the 5G from the combined signals; and a DRU for converting the distributed IF signals into millimeter-wave RF signals and wirelessly transmitting the RF signals to a 5G terminal.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 1, 2020
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Jong-Sik Lee, Won-Yeol Lee
  • Publication number: 20200265838
    Abstract: Various embodiments of the present invention pertain to an electronic device and an operation method therefor.
    Type: Application
    Filed: October 16, 2018
    Publication date: August 20, 2020
    Inventors: Yo-Han LEE, Jung-Kyun RYU, Jun Ho PARK, Won-Sik SONG, Jong Chan WON, Seungyong LEE, Young-Su LEE