Patents by Inventor Dong-Hun Lee

Dong-Hun 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).

  • Publication number: 20210271680
    Abstract: Despite the increase of memory capacity and CPU computing power, memory performance remains the bottleneck of in-memory database management systems due to ever-increasing data volumes and application demands. Because the scale of data workloads has out-paced traditional CPU caches and memory bandwidth, one can improve data movement from memory to computing units to improve performance in in-memory database scenarios. A near-memory database accelerator framework offloads data-intensive database operations via or to a near-memory computation engine. The database accelerator's system architecture can include a database accelerator software module/driver and a memory module with a database accelerator engine. An application programming interface (API) can be provided to support database accelerator functionality. Memory of the database accelerator can be directly accessible by the CPU.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 2, 2021
    Applicant: SAP SE
    Inventors: Dong Hun Lee, Minseon Ahn, Jungmin Kim, Kang Woo Choi, Oliver Rebholz
  • Publication number: 20210222350
    Abstract: A multi-functional storage system includes a storage compartment and a machine compartment provided at one side of the storage compartment. The multi-functional storage system also includes a door provided at a foreside of the storage compartment and the machine compartment. The machine compartment includes an intake port and an exhaust port communicating with outside air, and a blower unit for drawing in the outside air through the intake port and exhausting it through the exhaust port. While the door is closed and the intake port and the exhaust port are open, the blower unit is operated so as to dry an inner side of the door.
    Type: Application
    Filed: June 21, 2019
    Publication date: July 22, 2021
    Applicant: COWAY CO., LTD.
    Inventors: Tae Kyung KANG, In Kyu BACK, Hyo Sung KIM, Kyung Su LEE, Gyeongcheol SIN, Il Song PARK, Dong Hun LEE, Jin Min KIM, Sung Hwan HEO, Hyun Kuk CHOI, Byung Soo YUN
  • Patent number: 11067998
    Abstract: Provided are a cleaning robot and a method of controlling the same, and more specifically, a cleaning robot provided to detect an obstacle in various directions and a method of controlling the same. The cleaning robot includes a light emitter configured to radiate light, a plurality of light receivers configured to receive a radiation of the light in a predetermined direction among radiations of the light reflected from an obstacle when the radiated light is reflected from the obstacle, a support plate to which the light emitter and the light receiver are fixed and which is rotatably provided, and a controller configured to detect the obstacle on the basis of output signals transmitted from the light emitter and the plurality of light receivers and rotation information of the support plate.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Hun Lee, Young Do Kwon, Heum Yong Park, Min Jae Kim, Min Woo Ryu
  • Publication number: 20210196610
    Abstract: The present invention relates to a composition comprising adiponectin-derived peptide fragments and, more specifically, to a cosmetic composition and pharmaceutical composition for promoting hair growth comprising, as an active ingredient, one or more adiponectin-derived peptides selected from the group consisting of amino acid sequences of SEQ ID NOS: 1 to 21. The adiponectin-derived peptides activate the cell division of dermal papilla cells and outer root sheath cells of hair follicles, promote hair growth in the hair follicles, and also increase the expression of hair growth factors in the dermal papilla cells, and thus a composition of the present invention comprising the adiponectin-derived peptides can be effectively used to promote hair growth and inhibit hair loss.
    Type: Application
    Filed: September 3, 2018
    Publication date: July 1, 2021
    Applicant: JUNGJINHO EFFECT INC.
    Inventors: Jin Ho CHUNG, Oh Sang KWON, Eun Ju KIM, Jin Yong KIM, Dong Hun LEE
  • Patent number: 11031632
    Abstract: The present invention relates to a method for recovering a positive electrode active material from a lithium secondary battery including: 1) separating a positive electrode into a collector and a positive electrode part; 2) removing an organic substance by firing the separated positive electrode part; 3) washing the fired resultant and removing remaining fluorine (F); 4) adding a lithium-containing material into the washed resultant and firing to recover a lithium transition metal oxide.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 8, 2021
    Inventors: Dong Hun Lee, Dae Jin Lee, Ji Hoon Ryu, Gi Beom Han, Dong Hwi Kim, Wang Mo Jung, Sang Wook Lee, Eun Sol Lho
  • Publication number: 20210167365
    Abstract: A positive electrode material for a lithium secondary battery according to the present invention includes a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material are lithium composite transition metal oxides containing transition metals such as nickel (Ni), cobalt (Co) and manganese (Mn), the first positive electrode active material has a larger average particle size (D50) than the second positive electrode active material, a ratio (Li/Me)1 of the mole number of lithium with respect to the total mole number of transition metals of the first positive electrode active material is more than 1 to 1.5 or less, a ratio (Li/Me)2 of the mole number of lithium (Li) with respect to the total mole number of transition metals of the second positive electrode active material is 0.9 to 1, and the second positive electrode active material has a crystallite size of 180 nm or more.
    Type: Application
    Filed: May 22, 2019
    Publication date: June 3, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Dong Hwi Kim, Dong Hun Lee, Wang Mo Jung, Sung Bin Park, Gi Beom Han
  • Patent number: 11019972
    Abstract: Disclosed herein are a cleaning robot and a method of controlling the same. The cleaning robot according to one embodiment includes a modular in which one or more modules configured to support different functions are integrated, and a controller configured to control the overall operation of the cleaning robot.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 1, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Hun Lee, Heum Yong Park, Min Jae Kim, Min Woo Ryu, Young Do Kwon
  • Publication number: 20210146798
    Abstract: A driving control system of a fuel cell vehicle includes a fuel cell configured to receive hydrogen and air and generate power by a reaction between hydrogen and oxygen, a driving determiner configured to determine a driving state of a vehicle equipped with the fuel cell, a power calculator configured to calculate required power required to be supplied from the fuel cell, and a supply controller configured to control supply of air supplied to the fuel cell based on the driving state determined by the driving determiner and the required power calculated by the power calculator.
    Type: Application
    Filed: June 4, 2020
    Publication date: May 20, 2021
    Inventors: Jae Kwon Jung, Dong Hun Lee
  • Publication number: 20210151754
    Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1. LiaM1bOc??[Formula 1] wherein, M1 is at least one selected from the group consisting of boron (B), aluminum (Al), silicon (Si), titanium (Ti), and phosphorus (P), and 1?a?4, 1?b?8, and 1?c?20.
    Type: Application
    Filed: January 23, 2019
    Publication date: May 20, 2021
    Applicant: LG Chem, Ltd.
    Inventors: So Ra Baek, Min Suk Kang, Sang Wook Lee, Wang Mo Jung, Dong Hun Lee, Hye Lim Jeon, Eun Sol Lho
  • Publication number: 20210146783
    Abstract: A motor driving control method for controlling a motor speed so that a speed measured value of a motor follows a speed command value is provided. The method includes driving the motor by repeating an on section where a torque is generated in the motor and an off section where a torque is not generated in the motor at a regular period, based on the speed command value, wherein the driving includes applying a phase voltage to only one of multiple phases of the motor in the on section by a pulse width modulation scheme.
    Type: Application
    Filed: July 7, 2020
    Publication date: May 20, 2021
    Inventors: Min Su Kang, Chang Seok You, Sung Do Kim, Dong Hun Lee
  • Publication number: 20210135195
    Abstract: A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 6, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Dong Hwi Kim, Wang Mo Jung, Dong Hun Lee, Sung Bin Park, Ji Hye Kim, Hyung Man Cho, Jung Min Han
  • Publication number: 20210135187
    Abstract: The present invention relates to a positive electrode active material for a secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol % or more and the manganese (Mn) in an amount of 5 mol % or more based on a total amount of transition metals, and wherein the electrode positive active material is composed of a single particle, having a crystallite size of 180 nm or more.
    Type: Application
    Filed: May 15, 2019
    Publication date: May 6, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Sung Bin PARK, Dong Hun LEE, Hyung Man CHO, Jung Min HAN, Jin Tae HWANG, Wang Mo JUNG
  • Publication number: 20210130655
    Abstract: The present application relates to an optical laminate. The present application can provide an optical laminate that stable durability is secured even at a high temperature, particularly an ultrahigh temperature of about 100° C. or higher, a foaming phenomenon or the like in a pressure-sensitive adhesive layer is also suppressed or prevented, other physical properties required for the optical laminate are also excellent, and even in the case of being disposed adjacent to the electrode, corrosion of the relevant electrode or the like is not induced.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 6, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Seul Ki Han, Dong Hun Lee, Hyun Hee Son
  • Publication number: 20210126270
    Abstract: Disclosed is a system for determining a hydrogen supply failure of a fuel cell, the system including: a fuel cell, a plurality of hydrogen tanks having hydrogen, a hydrogen supply line connected to the hydrogen tanks and supplying hydrogen from the hydrogen tanks to the fuel cell, a plurality of tank valves mounted on the hydrogen tanks, respectively, and discharging hydrogen in the hydrogen tanks to the hydrogen supply line when opening, a pressure sensor sensing pressure in the hydrogen supply line, and a determiner determining poor opening of the hydrogen tanks on the basis of pressure information sensed by the pressure sensor.
    Type: Application
    Filed: March 24, 2020
    Publication date: April 29, 2021
    Inventors: Boung Ho Min, Dong Hun Lee, Soon Woo Kwon
  • Patent number: 10978724
    Abstract: A method for removing residual water in a fuel cell stack includes: blocking, by an air compressor, air supply to a fuel cell stack upon shutting down of fuel cell; measuring a cell voltage of the fuel cell stack while the air supply is blocked; estimating an amount of residual water in the fuel cell stack based on the measured cell voltage of the fuel cell stack; and removing, by a driving controller, the residual water in the fuel cell stack by driving the air compressor based on the estimated amount of water.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: April 13, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang Seok You, Sung Do Kim, Min Su Kang, Soon Woo Kwon, Dong Hun Lee
  • Patent number: 10972693
    Abstract: An image sensor and an image processing system including the same are provided. The image sensor includes a pixel array including a plurality of pixels each connected to one of first through m-th column lines to output a pixel signal, where “m” is an integer of at least 2; analog-to-digital converters each configured to receive the pixel signal corresponding to one of the first through m-th column lines, to compare the pixel signal with a ramp signal, and to convert the pixel signal to a digital pixel signal; and a blocking circuit connected to an input terminal of at least one of the analog-to-digital converters to block an influence of an operation of others among the analog-to-digital converters.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Hong Kim, Seung Hyun Lim, Han Kook Cho, Dong Hun Lee, Seog Heon Ham
  • Patent number: 10947982
    Abstract: A method of determining a state of cooling water is provided. The method includes operating, by a controller, a driving motor of a cooling water-circulating pump that is configured to circulate cooling water at a fixed current, a fixed torque, or a fixed power. In addition, the controller is configured to calculate an average rotation speed of the driving motor for a preset first period of time during the operation of the driving motor. Whether the circulation state of the cooling water is normal is determined based on an error between the calculated average rotation speed and a preset reference rotation speed.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hun Lee, Kang Sik Jeon
  • Publication number: 20210068523
    Abstract: A portable toothbrush is provided with a deployed toothbrush member with a thin thickness in a support plate to be carried conveniently and includes a toothbrush head and a toothbrush bar by a configuration in which a deployed toothbrush member is bent and assembled. The portable toothbrush includes: a toothbrush head assembly in which toothbrush head portions facing each other at a specific interval are formed on opposite sides of a surface of a lengthwise upper end of the support plate to be divided and first coupling holes are formed on sides of the toothbrush head portions; and a toothbrush bar assembly in which support bosses facing opposite side ends of a lower end of the support plate are formed at opposite side ends of a surface of the support plate contacting the toothbrush head portions and second coupling holes are formed on sides of the support bosses.
    Type: Application
    Filed: December 6, 2017
    Publication date: March 11, 2021
    Inventor: Dong Hun LEE
  • Publication number: 20210068606
    Abstract: A cleaning robot having an improved structure capable of improving a user convenience and method for controlling the same are disclosed herein. A cleaning robot includes a main body to form an outer appearance and having an inlet port provided to suck a foreign matter present in a cleaning area, an operation unit detachably coupled to the main body and provided to be gripped, at least one motion sensor provided to detect a motion of the operation unit, and a control unit electrically connected to the at least one motion sensor to drive a driving motor of the main body based on the motion of the operation unit detected by the at least one motion sensor.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Hun LEE, Heum Yong PARK, Chang Yeong KIM, Jae Youl JEONG, Young Do KWON, Jin Wook YOON
  • Patent number: RE48604
    Abstract: A scanner module and an image scanning apparatus employing the same. The scanner module comprises an illuminator for illuminating light on an object to be scanned. The illuminator includes a light emitting diode, a light guide extending in a main scanning direction to change a direction of the light received from the light emitting diode, and at least one elastic member to elastically support at least one longitudinal end of the light guide. As the light guide is elastically supported by the elastic member, convex deformation or bowing of an emission face of the light guide due to thermal expansion can be reduced.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: June 22, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jung Kwon Kim, Dong Hun Lee, Hyun Surk Kim, Kyung Rok Kim