Patents by Inventor Jae Choi

Jae Choi 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: 11656399
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light source including a plurality of light emitting devices disposed on the substrate; a resin layer disposed on the substrate; and a first diffusion layer disposed on the resin layer, wherein the resin layer includes a first resin portion disposed on the light source, and a second resin portion adjacent to the first resin portion and disposed on the substrate. The upper surface of the first resin portion has an inclination and is spaced apart from the first diffusion layer, the second resin portion includes a material different from that of the first resin portion, and the second resin portion based on the upper surface of the substrate. The height of the upper surface may be greater than the lowermost height of the upper surface of the first resin portion.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: May 23, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Jae Choi
  • Patent number: 11658499
    Abstract: A battery diagnosis apparatus determines whether a battery may be reused and includes a data obtaining device configured to output a perturbation signal, a signal regulating device configured to generate a current by applying the perturbation signal to a battery and performing feedback of a current signal output from the battery, and a noise canceling device configured to cancel noises of the current signal and a voltage signal received from the battery. The data obtaining device outputs the perturbation signal while changing a frequency, obtains an impedance spectrum based on the noise-canceled current signal and voltage signal for each frequency, and determines whether to reuse the battery based on the obtained impedance spectrum.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: May 23, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Bohyun Lee, Won Jae Choi, Ju Seok Kim, Jaekyung Oh, Sangwon Lee, Hee Yeon Ryu, Chulkyu Lee, Woojin Choi, Seungjune Lee, Farhan Farooq
  • Patent number: 11658259
    Abstract: A light emitting device is provided. The light emitting device includes a first semiconductor layer; a second semiconductor layer provided on a bottom surface of the first semiconductor layer; an active layer interposed between the first semiconductor layer and the second semiconductor layer; a dielectric layer provided on a bottom surface of the second semiconductor layer; a plurality of first n-contacts provided on a first etched surface of the first semiconductor layer; and a plurality of first p-contacts and a plurality of second p-contacts provided on the bottom surface of the second semiconductor layer. One first n-contact is disposed along a first edge region of the first semiconductor layer, one first p-contact is closer to the one first n-contact than one second p-contact, and an area of the one first p-contact is greater than an area of each of the second p-contacts.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: May 23, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeonghwan Jang, Jae-Yoon Kim, Sungwon Ko, Junghee Kwak, Sangseok Lee, Suyeol Lee, Seungwan Chae, Pun Jae Choi
  • Publication number: 20230144488
    Abstract: The present disclosure relates to novel cell penetrating peptides and uses thereof. Since 12 types of cell-penetrating peptides according to the present disclosure were confirmed to have excellent cell permeability and an excellent substance delivery effect in vitro and in vivo, the cell-penetrating peptides are expected to be useful in the field of research, and in the field of diagnosis or treatment of various diseases, by being capable of effectively delivering a substance with biological activity into the body, such as cells and tissues.
    Type: Application
    Filed: April 28, 2020
    Publication date: May 11, 2023
    Inventors: Han Joo KIM, Minah SUH, Yong Ho KIM, Jae Cheol LEE, Euna LEE, Ji Young NAM, Ho Jae CHOI
  • Publication number: 20230135095
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a reflective layer disposed on the substrate; a light source passing through the reflective layer and disposed on the substrate; a resin layer disposed on the reflective layer; and an optical pattern disposed on the resin layer, wherein the light source includes a first light emitting device and a second light emitting device spaced apart from the first light emitting device, wherein the optical pattern may include a first optical pattern disposed on an upper portion of the first light emitting device and a second optical pattern disposed on an upper portion of the second light emitting device, and the first optical pattern and the second optical pattern may have different areas.
    Type: Application
    Filed: March 15, 2021
    Publication date: May 4, 2023
    Inventor: Young Jae CHOI
  • Publication number: 20230115509
    Abstract: A travel robot for moving a substrate transfer robot in a transfer chamber includes: an elevating part for driving an elevating drive shaft installed in the transfer chamber, a first travel link arm engaged with the elevating drive shaft, a second and a third travel link arm respectively having a first and a second driving motors installed therein, wherein two travel drive shafts are interlocked with the first driving motor and their corresponding travel output shafts, wherein the travel drive shafts and the travel output shafts are installed on the first travel link arm, wherein a rotation drive shaft interlocked with the second driving motor and a rotation output shaft interlocked with the rotation drive shaft and the substrate transfer robot are installed on the third travel link arm, and wherein the travel output shafts are engaged with the first and the third travel link arm.
    Type: Application
    Filed: August 30, 2022
    Publication date: April 13, 2023
    Inventors: Soo Jong Lee, Eun Jae Choi, Hyeon Ju Kim, Jun Young Kim
  • Patent number: 11614208
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; light sources disposed on the substrate; and a resin layer disposed on the substrate and the light sources. a first reflective layer disposed on the resin layer, wherein the resin layer includes an exit surface facing the light sources, and the exit surface of the resin layer includes convex portions facing each of the light sources and recess portions respectively disposed between the plurality of convex portions, concave surfaces disposed in each of the plurality of recess portions may have a curvature, and a radius of curvature of the concave surfaces may increase in one direction.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 28, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Jae Choi, Dong Hyun Lee, Ki Chang Lee, Gyeong Il Jin, Moo Ryong Park
  • Patent number: 11609606
    Abstract: A display apparatus includes a display panel which is foldable at a folding area thereof; a foldable support which faces the display panel and is foldable together with the display panel; an elastic sheet between the foldable support and the display panel; a lower adhesive layer which is between the foldable support and the elastic sheet, and attaches the foldable support to the elastic sheet; and an upper adhesive layer which is between the elastic sheet and the display panel and attaches the elastic sheet to the display panel. Each of the foldable support, the elastic sheet, the lower adhesive layer and the upper adhesive layer is disconnected at the folding area.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: March 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Man Sik Myeong, Heung Seok Go, Chang Min Park, Gil Jae Choi
  • Publication number: 20230077537
    Abstract: An ultrasonic linear motor according to one embodiment is disclosed. The vibrating body includes an elastic body and a first piezoelectric element and a second piezoelectric element which are attached to two surfaces of the elastic body, a first weight and a second weight which are disposed on two side end portions of the vibrating body, a moving shaft which is coupled to a central portion of the vibrating body and moves according to a displacement of each of the piezoelectric elements, and a moving body which is fitted to the moving shaft and moves on the moving shaft.
    Type: Application
    Filed: June 9, 2020
    Publication date: March 16, 2023
    Inventors: Sang Young LEE, Kab Young KIM, Yong Jae CHOI
  • Publication number: 20230072738
    Abstract: Proposed is a method of manufacturing an antibacterial mobile phone case using a TPU antibacterial masterbatch. The method includes: (a) preparing an antibacterial masterbatch by dispersing an antibacterial agent and an additive in thermoplastic polyurethane and then performing extrusion molding; (b) preparing an antibacterial masterbatch by dispersing an antibacterial agent and an additive in thermoplastic polyurethane and then performing extrusion molding; (c) dispersing and mixing the color masterbatch prepared in step (a) in thermoplastic polyurethane; (d) dispersing and mixing the antibacterial masterbatch prepared in step (b) in thermoplastic polyurethane; and (e) dispersing the material mixed in step (c) and the material mixed in step (d) and then performing injection molding.
    Type: Application
    Filed: May 20, 2022
    Publication date: March 9, 2023
    Inventors: Seung Suk CHO, Jung Jae CHOI, Kwang Won JUNG, Byung Hoon HWANG, Chang Soo CHOI
  • Publication number: 20230075367
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.
    Type: Application
    Filed: November 15, 2022
    Publication date: March 9, 2023
    Inventors: Dong Hyun LEE, Moo Ryong Park, Young Jae CHOI
  • Patent number: 11592155
    Abstract: A light-emitting device includes an emission array including a plurality of light-emitting elements and a partition wall. The emission array includes a first region and a second region adjacent to each other. The partition wall is configured to isolate the first region and the second region from each other, such that the partition wall at least partially defines the first region in the emission array. The first region is associated with a first emission factor and the second region is associated with a second emission factor, the second emission factor different from the first emission factor.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: February 28, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-min Kwon, Pun-jae Choi, Geun-woo Ko, Jong-hyun Lee
  • Publication number: 20230058873
    Abstract: To prevent vertical vibration of track rollers as much as possible when transferring between overhanging portions of each core metal while securing the flexibility of a crawler main body. The present invention includes core metals 10 embedded in a crawler main body 9 at substantially equal intervals, and rolling paths 12, 13 for track rollers arranged on both sides in a crawler width direction of an anti-tread side of the crawler main body 9, and includes overhanging portions 24 to 27 on both sides in a crawler rotation direction of each core metal 10, overhanging from each core metal 10 toward both sides in the crawler rotation direction to support each of the rolling paths 12, 13. The respective overhanging portions 24 to 27 corresponding to the respective rolling paths 12, 13 of each core metal 10 are arranged such that at least tip portions are arranged so as to shift in the crawler width direction within a width of each rolling path 12, 13.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 23, 2023
    Inventor: Yong Jae CHOI
  • Patent number: 11573006
    Abstract: A light source module including: a printed circuit board; a light emitting device mounted on the printed circuit board and including a plurality of subarrays each of the plurality of subarrays including a plurality of light emitting cells; and a plurality of driving chips mounted on the printed circuit board, wherein each of the plurality of driving chips respectively drives a corresponding one of the plurality of subarrays, wherein the plurality of subarrays are electrically isolated from each other.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geun-woo Ko, Seung-woo Lee, Jun-ho Lee, Pun-jae Choi
  • Publication number: 20230024668
    Abstract: A memory device including a plurality of memory cells, a peripheral circuit, and control logic. The peripheral circuit is configured to generate a plurality of operating voltages used in a memory operation, based on a target pump clock, and perform the memory operation by using the plurality of operating voltages. The control logic is configured to select the target pump clock among a plurality of pump clocks, based on a number of data bits which selected memory cells on which the memory operation is to be performed among the plurality of memory cells store, and control the peripheral circuit to perform the memory operation on the selected memory cells.
    Type: Application
    Filed: December 14, 2021
    Publication date: January 26, 2023
    Applicant: SK hynix Inc.
    Inventors: Won Jae CHOI, Min Su KIM, Hyun Chul CHO
  • Publication number: 20230019057
    Abstract: Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG not compressed by the compressor as a refrigerant; a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger; and a second oil filter disposed downstream of the pressure reducer, wherein the compressor includes at least one oil-lubrication type cylinder and the second oil filter is a cryogenic oil filter.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 19, 2023
    Inventors: Jae Hyeoung JANG, Sung Kak LYU, Jin Yeol YU, Won Jae CHOI
  • Publication number: 20230003801
    Abstract: An apparatus for estimating a state of a battery includes a memory configured to store a program of a neural network including a plurality of pre-trained predictive models and an adaptive hidden layer; and includes at least one processor configured to execute the program. The program includes an instruction for receiving battery data of a target battery, inputting the battery data to the adaptive hidden layer, selecting one predictive model from the plurality of pre-trained predictive models through the adaptive hidden layer, inputting the battery data to the selected predictive model, and outputting prediction data for a remaining useful life of the target battery through the selected predictive model.
    Type: Application
    Filed: April 26, 2022
    Publication date: January 5, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jaekyung Oh, Won Jae Choi, Ju Seok Kim, Chulkyu Lee, Hee Yeon Ryu, Bohyun Lee, Yun Young Choi, Seongyoon Kim, Jung-Il Choi
  • Patent number: 11531153
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 20, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dong Hyun Lee, Moo Ryong Park, Young Jae Choi
  • Patent number: 11527986
    Abstract: An apparatus includes a servo motor being configured to drive a traveling part for transferring an object along a traveling rail, a servo driver being configured to control an operation of the servo motor with adjusting a torque of the servo motor according to a load level, an overload determination unit being configured to check a degree of overload of the servo driver and a motion controller being configured to generate a speed signal and a speed profile according to a transfer command which a control unit of controlling an operation of the traveling part transmits thereto, the motion controller generating either a normal speed profile when the servo driver is not at an overload state or a corrected speed profile when the servo driver is at the overload state, and transmitting the speed signal and the speed profile to the servo driver.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: December 13, 2022
    Assignee: SEMES CO., LTD.
    Inventors: Jun Beom Lee, Yeong Jae Choi
  • Patent number: 11519835
    Abstract: A method of predicting joining strength of joined dissimilar materials, includes performing a joining strength test on a plurality of specimens of joined dissimilar materials each having different joining information, and acquiring force-displacement data on a basis of the joining information; constructing, in a prediction system, an artificial neural network model for predicting the force-displacement data and the joining strengths from the joining information; learning the artificial neural network model by inputting the force-displacement data to the prediction system, the force-displacement data obtained through the joining strength test; inputting joining information to be predicted to the prediction system by using a computer running a software for performing prediction for the joining strength and connected to a host computer of the prediction system through a network; and predicting, by the learned artificial neural network model, force-displacement value and joining strength.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 6, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Sogang University
    Inventors: Yu Jin Bae, Jae Ho Kim, Heung Jae Choi, Dong Choul Kim