Patents by Inventor Jung-Ho Choi

Jung-Ho 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).

  • Publication number: 20210142848
    Abstract: A semiconductor device includes an error check and scrub (ECS) command generation circuit and an ECS control circuit. The ECS command generation circuit is configured to generate an ECS command by controlling a speed of a first counting operation that is performed based on a refresh command or a bank refresh command, according to a temperature and a refresh mode of the semiconductor device, or is configured to generate the ECS command by performing a second counting operation based on a periodic signal. The ECS control circuit is configured to sequentially generate an ECS active command, an ECS read command, an ECS write command, an ECS pre-charge command, and an end signal based on the ECS command. The refresh mode includes a fine granularity refresh (FGR) mode, and the temperature includes a high temperature that is a temperature above a certain temperature.
    Type: Application
    Filed: August 3, 2020
    Publication date: May 13, 2021
    Applicant: SK hynix Inc.
    Inventors: Jung Ho LIM, Byeong Chan CHOI
  • Publication number: 20210135216
    Abstract: A lithium complex oxide includes a mixture of first particles of n1 (n1>40) aggregated primary particles and second particles of n2 (n2?20) aggregated primary particles, the lithium complex oxide represented by Chemical Formula 1 and having FWHM (deg., 2?) of 104 peak in XRD, defined by a hexagonal lattice having R-3m space group, in a range of Formula 1: LiaNixCoyMnzM1-x-y-zO2,??[Chemical Formula 1] where M is selected from: B, Ba, Ce, Cr, F, Mg, Al, Cr, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, Sr, and any combination thereof, 0.9?a?1.3, 0.6?x?1.0, 0.0?y?=0.4, 0.0?z?0.4, and 0.0?1?x?y?z?0.4, ?0.025?FWHM(104)?{0.04+(xfirst particle?0.6)×0.25}?0.025,??[Formula 1] where FWHM(104) is represented by Formula 2, FWHM(104)={(FWHMChemical Formula 1 powder(104)?0.1×mass ratio of second particles)/mass ratio of first particles}?FWHMSi powder(220).
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Jung Han LEE, Seung Woo CHOI, Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Mi Hye YUN, Kwang Seok CHOI, Joong Ho BAE, Jin Oh SON
  • Publication number: 20210135212
    Abstract: The present invention relates to a lithium composite oxide capable of improving capacity and lifetime characteristics of a lithium secondary battery and a lithium secondary battery including the same. According to the present invention, since the atomic ratio of boron (B) and nickel (Ni) in the surface region of the lithium composite oxide including primary particles enabling lithium intercalation and deintercalation and secondary particles formed by aggregating the primary particles is in a specific range, the stability of the lithium composite oxide may be improved, and thus it is possible to improve the capacity and lifetime characteristics of the lithium secondary battery using the lithium composite oxide as a positive electrode active material.
    Type: Application
    Filed: September 29, 2020
    Publication date: May 6, 2021
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Publication number: 20210135222
    Abstract: The present invention relates to a device and a method of preparing a SiOx, and a SiOx anode material, and more particularly, to a device and a method of preparing a SiOx, in which a SiOx is prepared by reacting liquid silicon and solid silicon dioxide in one or more crucibles, and a metal raw material is simultaneously supplied during SiOx preparing to continuously prepare a metal-SiOx in a single process, and a SiOx anode material.
    Type: Application
    Filed: December 11, 2020
    Publication date: May 6, 2021
    Applicant: TERA TECHNOS CO., LTD
    Inventors: Jae Woo LEE, Jin Gee PARK, Sun Ho CHOI, Jung Hoon CHEON
  • Publication number: 20210134892
    Abstract: A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.
    Type: Application
    Filed: July 2, 2020
    Publication date: May 6, 2021
    Inventors: Young-In HWANG, Eung Taek Kim, Yong Ho YANG, Seong Min WANG, Joo Hyeon JO, Jung-Mi CHOI, Seong Baik CHU
  • Patent number: 10991938
    Abstract: The present invention relates to a lithium complex oxide, and more specifically, to a lithium complex oxide of which a range of FWHM(104) values maintains a constant relationship with a molar fraction of nickel when measuring XRD defined by a hexagonal lattice having a R-3m space group. The lithium complex oxide according to the present invention exhibits an effect of improving lifetime properties of the cells including high Ni-based cathode active materials accordingly by enabling a range of the FWHM(104) values at (104) peaks defined b the hexagonal lattice having the R-3m space group to maintain a constant relationship with the molar fraction of nickel, thereby maintaining the primary particles in a predetermined size range.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: April 27, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Jung Han Lee, Moon Ho Choi, Jun Won Suh, Sung Jin Jang, Ji Hyun Nam, Seung Woo Choi
  • Patent number: 10992626
    Abstract: An instant messaging service providing method and a user terminal for performing the instant messaging service providing method including receiving and displaying a first message that is created by a message transmitter; determining whether a message switching condition is met after the first message is displayed; and displaying a second message that is created by the message transmitter when the message switching condition is determined to be met.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: April 27, 2021
    Assignee: KAKAO CORP.
    Inventors: So Young Choi, Bo Mi Kim, Un Bong Kang, Jung Ho Song, Ji Na Kim, Jun Hyuk Jang, Ji Won Suh
  • Publication number: 20210120677
    Abstract: A method of manufacturing a printed circuit board includes providing an insulating layer, forming a plating seed layer on the insulating layer, forming a first circuit pattern on the plating seed layer and a second circuit pattern on the first circuit pattern, and forming a top metal layer on the second circuit pattern. The second circuit pattern can be thinner than the first circuit pattern, and the top metal layer can be wider than the second circuit pattern.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Jung Ho HWANG, Han Su LEE, Dae Young CHOI, Soon Gyu KWON, Dong Hun JEONG, In Ho JEONG, Kil Dong SON, Sang Hwa KIM, Sang Young LEE, Jae Hoon JEON, Jin Hak LEE, Yun Mi BAE
  • Publication number: 20210117052
    Abstract: A method and system for providing information that enables easier and quicker access to an item related to a context of a device, and a computer-readable recording medium thereof are provided. The method includes detecting a context of a device, and displaying at least one virtual space corresponding to the detected context on a screen of the device. The virtual space is a Graphic User Interface (GUI) that is configured to register the detected context and information related to at least one item.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 22, 2021
    Inventors: Hee-chul JEON, Jung-ho KIM, Yong-gook PARK, Seung-eok CHOI
  • Publication number: 20210119205
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 22, 2021
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Patent number: 10942389
    Abstract: A color conversion element includes a base substrate, and a first color filter layer, a second color conversion layer, and a third color conversion layer disposed on the base substrate, wherein the first color filter layer, the second color conversion layer, and the third color conversion layer are sequentially arranged on a plane, and wherein an interval between the first color filter layer and the second color conversion layer or an interval between the first color filter layer and the third color conversion layer is different from an interval between the second color conversion layer and the third color conversion layer.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: June Woo Lee, Ji Hyun Kim, Young Hee Lee, Young Joo Jeon, Byoung Seong Jeong, Jung Ho Choi
  • Publication number: 20210057278
    Abstract: Methods of manufacturing a semiconductor chip are provided. The methods may include providing a semiconductor substrate including integrated circuit regions and a cut region. The cut region may be between the integrated circuit regions. The methods may also include forming a modified layer by emitting a laser beam into the semiconductor substrate along the cut region, polishing an inactive surface of the semiconductor substrate to propagate a crack from the modified layer, and separating the integrated circuit regions along the crack. The cut region may include a plurality of multilayer metal patterns on an active surface of the semiconductor substrate, which is opposite to the inactive surface of the semiconductor substrate. The plurality of multilayer metal patterns may form a pyramid structure when viewed in cross section.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Inventors: Byung-moon Bae, Yoon-sung Kim, Yun-hee Kim, Hyun-su Sim, Jun-ho Yoon, Jung-ho Choi
  • Patent number: 10886234
    Abstract: A semiconductor device is provided. The semiconductor device includes: a substrate which includes a semiconductor chip region and a scribe line region surrounding the semiconductor chip region; an insulating film arranged over the semiconductor chip region and the scribe line region on the substrate, and including a first surface, a second surface opposite to the first surface, a third surface connecting the first surface and the second surface, and a fourth surface opposite to the third surface and connecting the first surface and the second surface; and an opening portion formed on the second surface of the insulating film and the fourth surface of the insulating film to expose the substrate, wherein the opening portion is formed in the scribe line region, and the first surface of the insulating film and the third surface of the insulating film do not include an opening portion which expose the substrate.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: January 5, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Ho Yoon, Yoon Sung Kim, Yun Hee Kim, Byung Moon Bae, Hyun Su Sim, Jung Ho Choi
  • Publication number: 20200411799
    Abstract: A display device includes a base substrate, an organic layer on the base substrate and including a pattern region having an uneven pattern formed thereon, and a non-pattern region having a substantially flat surface, a light-emitting element on the organic layer, and a color conversion pattern on the light-emitting element and overlapping the pattern region and the non-pattern region.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventors: Jung Ho CHOI, June Woo LEE
  • Patent number: 10866669
    Abstract: There is provided a flat panel display device and a method of manufacturing the same. A flexible and transparent material is coated on a supporting substrate to a small thickness so that film substrates are easily formed. Step differences are formed in the film substrates so that a distance between pads of the two film substrates is reduced. Since conductive balls with reduced diameters are used so that the pads may be electrically connected, the distance between pads is reduced so that it is possible to easily miniaturize a high resolution flat panel display device, to prevent electrical connection defect between the pads, and to reduce manufacturing expenses.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: December 15, 2020
    Inventor: Jung Ho Choi
  • Publication number: 20200385876
    Abstract: Provided are an anode for electrolysis, which includes a metal base, and a catalyst layer disposed on at least one surface of the metal base, wherein the catalyst layer includes a composite metal oxide of ruthenium, iridium, titanium, and platinum, and a metal in the composite metal oxide does not include palladium, wherein, when the catalyst layer is equally divided into a plurality of pixels, a standard deviation of iridium compositions of the plurality of equally divided pixels is 0.40 or less, and a method of preparing the same.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 10, 2020
    Inventors: Hun Min PARK, Jung Ho CHOI, In Sung HWANG, Kwang Hyun KIM, Jung Up BANG, Dong Chul LEE, Gyo Hyun HWANG
  • Patent number: 10854517
    Abstract: Methods of manufacturing a semiconductor chip are provided. The methods may include providing a semiconductor substrate including integrated circuit regions and a cut region. The cut region may be between the integrated circuit regions. The methods may also include forming a modified layer by emitting a laser beam into the semiconductor substrate along the cut region, polishing an inactive surface of the semiconductor substrate to propagate a crack from the modified layer, and separating the integrated circuit regions along the crack. The cut region may include a plurality of multilayer metal patterns on an active surface of the semiconductor substrate, which is opposite to the inactive surface of the semiconductor substrate. The plurality of multilayer metal patterns may form a pyramid structure when viewed in cross section.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-moon Bae, Yoon-sung Kim, Yun-hee Kim, Hyun-su Sim, Jun-ho Yoon, Jung-ho Choi
  • Patent number: 10811637
    Abstract: A display device includes a base substrate, an organic layer on the base substrate and including a pattern region having an uneven pattern formed thereon, and a non-pattern region having a substantially flat surface, a light-emitting element on the organic layer, and a color conversion pattern on the light-emitting element and overlapping the pattern region and the non-pattern region.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: October 20, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Ho Choi, June Woo Lee
  • Publication number: 20200270132
    Abstract: The present invention relates to a method of purifying waste hydrochloric acid, and more particularly, to a method of purifying waste hydrochloric acid which includes preparing an extraction solution by dissolving an extractant in an organic solvent (S1), extracting metallic components with the organic solvent by adding the extraction solution to the waste hydrochloric acid (S2), separating a waste hydrochloric acid layer and the organic solvent containing the metallic components (S3), and obtaining purified hydrochloric acid by recovering the separated (fractionated) waste hydrochloric acid layer (S4), wherein the extractant is used in an amount of 40 moles or more based on 1 mole of iron (Fe) included in the waste hydrochloric acid, and the waste hydrochloric acid and the extraction solution are mixed in a volume ratio of 1:0.1 to 1:1.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 27, 2020
    Inventors: Hee Jun EOM, Dong Chul LEE, Yeon Yi KIM, Jung Ho CHOI
  • Publication number: 20200253353
    Abstract: The disclosure relates to a container including a spinning formulation structure, the container including a rotating unit including a central axis having a bar shape and a first gear coupled to the central axis and rotating together with the central axis; a plurality of formulation structures coupled to the rotating unit; a housing having a storage space through which the plurality of formulation structures are inserted, the storage space being open toward the outside and a second gear being formed along an inner peripheral surface of the storage space; and a controller being inserted in one side and another side of the central axis and located on an upper portion of the housing to be rotatable along the inner peripheral surface of the housing, wherein, when the controller is located on the upper portion of the housing, the first gear is engaged with the second gear.
    Type: Application
    Filed: September 9, 2019
    Publication date: August 13, 2020
    Applicant: COSMAX INC.
    Inventors: Jung Su KIM, Jung Ku YUN, Hyun Seung JUN, Hyun Soo KIM, Jung Ho CHOI