Patents by Inventor Ho Maeng

Ho Maeng 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: 20250010693
    Abstract: An air vent device for a vehicle includes an air guide configured to protrude towards a passage through which air flows, wherein a length of the air guide protruding into the passage is adjustable by rotation with respect to the passage.
    Type: Application
    Filed: November 15, 2023
    Publication date: January 9, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, ITW EF&C KOREA LLC.
    Inventors: Yu Mi Kim, Yoon Hyung Lee, Myung Hoe Kim, Byeol Han, Jin Hu Kim, Joong Ho Maeng, Yong Seok Park
  • Publication number: 20250002386
    Abstract: Systems and methods are disclosed for treating wastewater, such as food and beverage industry wastewater, pulp and paper wastewater, textile wastewater, tannery wastewater, pharmaceutical wastewater, etc., which contains high concentration of COD along with high concentrations of nitrogen and phosphorus to yield a low COD output along with a low phosphorous output and a low nitrogen output. One system comprises a buffer tank, an anoxic tank, an oxic tank, and a membrane bioreactor tank fluidically connected in series with pure oxygen blown into the oxic tank.
    Type: Application
    Filed: May 31, 2022
    Publication date: January 2, 2025
    Applicant: AMERICAN AIR LIQUIDE, INC.
    Inventors: Min Ho MAENG, Rovshan MAHMUDOV
  • Publication number: 20240408895
    Abstract: An inkjet printing equipment includes a work holder which fixes the object to be printed, a work holder moving part which allows the work holder to be linearly movable in a Y-axis direction, a base on which the work holder moving part is installed, a head part which is installed on the base and sprays an ink onto the object to be printed, a head part moving part which moves the head part in an X-axis direction and is installed above the base, an ink curing part installed above the work holder and on a moving path of the work holder in the Y-axis direction, and an enclosure which covers all of the work holder, the head part, and the ink curing part.
    Type: Application
    Filed: October 17, 2022
    Publication date: December 12, 2024
    Inventors: SUNG JIN LEE, WON SEOK LEE, SUK GYU LEE, HO MAENG, JUNG HUN PARK, CHANG WOO SEO, SE HYUN SIM, YEON JIN JUNG
  • Publication number: 20240117285
    Abstract: Raw biogas from an anaerobic digester is fed to a membrane separation unit that produces methane rich biomethane and a CO2 rich permeate that is recycled to the anaerobic digester where it is mixed with the digestate.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Sudhir KULKARNI, Min Ho MAENG, Shu FANG
  • Publication number: 20240115988
    Abstract: A system for upgrading biogas through a membrane separation process comprises an anaerobic digester, operated under an operation pressure higher than atmosphere pressure, preferably greater than 4 baba, generating the biogas, a first membrane stage and a second membrane stage, separating the biogas into a residue stream, enriched in CH4, and a permeate stream, enriched in CO2, a compressor compressing the permeate stream to a pressure slightly greater than the operation pressure, and recycling the permeate stream back to the bottom volume of the anaerobic digester.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Inventors: Min Ho MAENG, Sudhir KULKARNI, Shu FANG
  • Publication number: 20240025192
    Abstract: An apparatus for inspecting an inkjet head nozzle is capable of rapidly inspecting a jetting state of ink droplets sprayed from a head nozzle of inkjet equipment provided in a glove box. The apparatus for inspecting the inkjet head nozzle according to an embodiment includes a cartridge fastening portion which is installed in the glove box having the built-in inkjet equipment, and a cartridge portion which is provided with a testbed for the inspection of the jetting state of ink droplets from the head nozzle of the inkjet equipment, which has an inspection film supply roll and an inspection film recovery roll that are installed therein and replaceable so as to supply an inspection film onto the upper portion of the testbed, and which is attachable to/detachable from the cartridge fastening portion.
    Type: Application
    Filed: September 2, 2021
    Publication date: January 25, 2024
    Inventors: Sung Jin LEE, Jung Hun PARK, Ho MAENG, Se Hyun SIM
  • Publication number: 20230407822
    Abstract: A fuel ionization apparatus according to the present Invention comprises: a first electrode unit and a second electrode unit provided in a fuel supply pipe through which fuel flows; and a pulse generation unit for applying electricity (pulses) of different polarities to the first electrode unit and the second electrode unit, wherein the first electrode unit and the second electrode unit are provided to be separated from each other so as not to overlap in the longitudinal direction of the fuel supply pipe, and can form an electric field over a predetermined length range of the fuel supply pipe.
    Type: Application
    Filed: October 6, 2020
    Publication date: December 21, 2023
    Inventor: Chun Ho MAENG
  • Patent number: 11781346
    Abstract: A latch structure according to an embodiment includes a body, a locking body, a latch head, a plunger, and a latch stopper. The body is disposed inside a door. The locking body moves in response to an external operation. The latch head protrudes from the body to maintain the door in a closed position, and rotates when the locking body is spaced apart at least a predetermined distance. The plunger retracts into the body to prevent the latch head from rotating while the door is being closed. The latch stopper prevents the protruding latch head from retracting into the body when the plunger is maintained within the body.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: October 10, 2023
    Assignee: ZIGBANG CO., LTD.
    Inventor: Chul Ho Maeng
  • Patent number: 11660724
    Abstract: A manufacturing method of a pad conditioner by reverse plating is disclosed. The method comprises: forming a first plating layer on a temporary substrate to have multiple recesses; forming a second adhesive photosensitive film on the first plating layer; putting grains into the recesses; forming a first filling layer to support the grains; forming a second filling layer to support the grains; removing the second adhesive photosensitive film and forming a second boundary layer on the entire surface; forming a second plating layer on the second boundary layer; removing the temporary substrate and attaching a final substrate to the second plating layer; removing the first boundary layer and the first plating layer; removing the second boundary layer excluding a portion not exposed to the outside; and forming a third plating layer on an entire surface opposite to the final substrate to support the grains.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 30, 2023
    Assignee: Saesol Diamond Ind. Co., Ltd.
    Inventor: Ju-Ho Maeng
  • Publication number: 20230134604
    Abstract: Provided is a multiple laser pulse oscillation method using multiple Q-switching capable of reducing peak power of laser and increasing energy efficiency. A multiple laser pulse oscillation method using multiple Q-switching includes: forming one period of light energy; exciting electrons of a gain medium by the light energy; performing first Q-switching during one period of the light energy; oscillating a first laser pulse by the first Q-switching; performing second Q-switching during one period of the light energy; and oscillating a second laser pulse by the second Q-switching.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 4, 2023
    Applicant: LTRAGLOBAL Co., Ltd.
    Inventors: Chan Ho MAENG, Kil Sung SU
  • Patent number: 11577214
    Abstract: The present invention provides a nanoparticle synthesis device capable of improving productivity of nanoparticles by increasing the size of a reaction region of laser pyrolysis of a source gas.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: February 14, 2023
    Assignees: LG CHEM, LTD., KNU-INDUSTRY COOPERATION FOUNDATION
    Inventors: Jin Mi Jung, Bu Gon Shin, Seong Beom Kim, Seok Ho Maeng
  • Publication number: 20220349213
    Abstract: A latch structure according to an embodiment includes a body, a locking body, a latch head, a plunger, and a latch stopper. The body is disposed inside a door. The locking body moves in response to an external operation. The latch head protrudes from the body to maintain the door in a closed position, and rotates when the locking body is spaced apart at least a predetermined distance. The plunger retracts into the body to prevent the latch head from rotating while the door is being closed. The latch stopper prevents the protruding latch head from retracting into the body when the plunger is maintained within the body.
    Type: Application
    Filed: October 29, 2021
    Publication date: November 3, 2022
    Inventor: Chul Ho MAENG
  • Publication number: 20220119916
    Abstract: In described embodiments, a process for recovery of a metal from a grounded ore comprises leaching the grounded ore with a leaching reagent, an oxidant and an oxygen vector. In particular, a process for recovery of gold from a grounded gold ore, comprises leaching the grounded gold ore with a cyanide salt, an oxidant and an oxygen vector. The oxygen vector is selected from dodecane, decane, hexadecane, or the like.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 21, 2022
    Inventors: Sumedh GOSTU, Min Ho MAENG, Timothy L. MURRAY
  • Publication number: 20200338520
    Abstract: The present invention provides a nanoparticle synthesis device capable of improving productivity of nanoparticles by increasing the size of a reaction region of laser pyrolysis of a source gas.
    Type: Application
    Filed: July 16, 2019
    Publication date: October 29, 2020
    Inventors: Jin Mi Jung, Bu Gon Shin, Seong Beom Kim, Seok Ho Maeng
  • Publication number: 20190232461
    Abstract: A manufacturing method of a pad conditioner by reverse plating is disclosed. The method comprises: forming a first plating layer on a temporary substrate to have multiple recesses; forming a second adhesive photosensitive film on the first plating layer; putting grains into the recesses; forming a first filling layer to support the grains; forming a second filling layer to support the grains; removing the second adhesive photosensitive film and forming a second boundary layer on the entire surface; forming a second plating layer on the second boundary layer; removing the temporary substrate and attaching a final substrate to the second plating layer; removing the first boundary layer and the first plating layer; removing the second boundary layer excluding a portion not exposed to the outside; and forming a third plating layer on an entire surface opposite to the final substrate to support the grains.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventor: Ju-Ho Maeng
  • Publication number: 20190112835
    Abstract: A present invention relates to a digital doorlock including a latch bolt self-loosening structure which includes an authenticator which receives an authentication signal and performs authentication; a motor which is driven in a predetermined direction when authentication is performed by the authenticator; a latch operator which can be operated through driving of the motor; and a shaft which is rotated according to operation of the latch operator and operates a latch bolt, wherein the latch operator releases the latch bolt by operating according to the authentication and rotating the shaft in one direction.
    Type: Application
    Filed: September 7, 2018
    Publication date: April 18, 2019
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Seong-Jong YOO, Chul-Ho MAENG, Jin JEONG
  • Patent number: 10090402
    Abstract: The method includes steps for improving gate cut isolation region critical dimension (CD) control. Prior to replacement metal gate (RMG) formation, a first sacrificial gate adjacent to first and second channel regions and made of a first sacrificial material (e.g., polysilicon or amorphous silicon) is replaced with a second sacrificial gate made of a second sacrificial material (e.g., amorphous carbon) that is more selectively and anisotropically etchable. A cut is made, dividing the second sacrificial gate into first and second sections, and the cut is then filled with a dielectric to form the gate cut isolation region. The second sacrificial material ensures that, when an opening in a mask pattern used to form the cut extends over a gate sidewall spacer and interlayer dielectric (ILD) material, recesses are not form within the spacer or ILD. Thus, the CD of the isolation region can be controlled.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: October 2, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Chanro Park, Chang Ho Maeng, Pei Liu, Junsic Hong, Laertis Economikos, Ruilong Xie
  • Patent number: 10056458
    Abstract: Methods of MOL S/D contact patterning of RMG devices without gouging of the Rx area or replacement of the dielectric are provided. Embodiments include forming a SOG layer around a RMG structure, the RMG structure having a contact etch stop layer and a gate cap layer; forming a lithography stack over the SOG and gate cap layers; patterning first and second TS openings through the lithography stack down to the SOG layer; removing a portion of the SOG layer through the first and second TS openings, the removing selective to the contact etch stop layer; converting the SOG layer to a SiO2 layer; forming a metal layer over the SiO2 layer; and planarizing the metal and SiO2 layers down to the gate cap layer.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: August 21, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Chang Ho Maeng, Andy Wei, Anthony Ozzello, Bharat Krishnan, Guillaume Bouche, Haifeng Sheng, Haigou Huang, Huang Liu, Huy M. Cao, Ja-Hyung Han, SangWoo Lim, Kenneth A. Bates, Shyam Pal, Xintuo Dai, Jinping Liu
  • Patent number: 9922972
    Abstract: A lithography method and accompanying structure for decreasing the critical dimension (CD) and improving the CD uniformity within semiconductor devices uses a layer of silicon carbide as an embedded blocking mask for defining semiconductor architectures, including contact trench openings to form trench silicide contacts.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: March 20, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Xiaofeng Qiu, Haigou Huang, Chang Ho Maeng
  • Publication number: 20180010367
    Abstract: A door locking device including a rotary part including a first rotary part and a second rotary part allowed to be changed into a locked state or an unlocked state through rotation; an elastic rotary part rotated by movement of a locking body moved by a key; a cam lever moved by rotation of the elastic rotary part; a clutch pushed and moved by movement of the cam lever; and an interlocking member inserted into the rotary part by movement of the clutch to interlock the first rotary part and the second rotary part is provided.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 11, 2018
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Chul-Ho MAENG, Sang-Han LEE