Patents by Inventor Hyun-jun Cho

Hyun-jun Cho 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: 11168073
    Abstract: The present technology provides 3,3-difluoroallylamines or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and uses thereof. The 3,3-difluoroallylamines or their pharmaceutically acceptable salts exhibit potent inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 9, 2021
    Assignee: YUHAN CORPORATION
    Inventors: Tae Dong Han, Hee Jae Tak, Eun Kyung Kim, Eui Chul Lee, Sol Park, Hyok Jun Cho, Cheol Hee Lim, So Young Kim, Hyun Ho Choi, Da Na Jeong, Na Yeon Yang, Na Ry Ha
  • Publication number: 20210332805
    Abstract: The present invention relates to an actuator using a photo-responsive shape-changing construct, the actuator comprising: a 1-1 polymer film and a 1-2 polymer film, configured to undergo a bending deformation in response to a light irradiation; a first restricting member provided between the 1-1 polymer film and the 1-2 polymer film so as to allow the 1-1 polymer film and the 1-2 polymer film to be connected to each other; and a rotation member configured to rotate as the rotation member, at least in part, is pushed by an end of the 1-1 polymer film along with the bending deformation of the 1-1 polymer film.
    Type: Application
    Filed: October 30, 2018
    Publication date: October 28, 2021
    Inventors: Maeng Hyo CHO, Hee Jun SUNG, Hong Seok KIM, Hyun Su KIM
  • Patent number: 11117284
    Abstract: Disclosed is a line catcher-type waterjet cutting apparatus in which a workpiece is subjected to the waterjet processing in a state of being clamped by a workpiece edge clamping device and a separate driving unit for the workpiece edge clamping device is provided, and in which the workpiece is clamped by the workpiece edge clamping device during the waterjet processing, while the workpiece is easily decoupled from the workpiece edge clamping device after the waterjet processing is completed, so that the waterjet processing is carried out while reciprocally conveying the workpiece in an X-direction, thereby increasing the processing accuracy of the waterjet processing and easily automating the waterjet processing.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 14, 2021
    Assignee: TOPS CO., LTD.
    Inventors: Chang Hoon Choi, Tae Il Cho, Min Soo Song, Hyun Jung Kwon, Jang Sung Kim, Dong Jun Park, Mohamed Ahmed Hashish
  • Publication number: 20210281182
    Abstract: Disclosed are a phase current control device for a DAB converter and a method therefor. The device includes a DAB converter having at least one leg including a switching element, a phase current measuring unit for measuring a phase current for each of the legs, and a phase current phase controller for performing phase control by setting one of the phase currents of the respective legs as a reference phase current, comparing each of the other phase currents with the reference phase current to derive a phase difference for each of the phase currents, and compensating each of the phase currents for a corresponding one of the phase differences.
    Type: Application
    Filed: November 11, 2016
    Publication date: September 9, 2021
    Inventors: Jae-Han KIM, Ju-Yong KIM, Jin-Tae CHO, Young-Pyo CHO, Jee-Hoon JUNG, Hyun-Jun CHOI
  • Patent number: 11111347
    Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: September 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
  • Patent number: 11096921
    Abstract: The present invention relates to a compound of Formula 1, and an SIRT 1 activator including, as an active ingredient, derivatives thereof or pharmaceutically acceptable salts thereof. The present invention also relates to a composition including the SIRT 1 activator for detoxification, for the improvement of metabolic disorders, for the prevention or improvement of eye diseases, or the prevention or improvement of immune diseases.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 24, 2021
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Byung Gyu Kim, Hyun Woo Jeong, Su Kyung Kim, Si Young Cho, Chan Woong Park, Dae Bang Seo, Wan Gi Kim, Sang Jun Lee
  • Publication number: 20200277437
    Abstract: Provided are a polytrimethylene ether glycol and a preparation method thereof, wherein various by-products and oligomers may be effectively removed from a polytrimethylene ether glycol product without exposing to a high temperature for a long period of time, and therefore, a molecular weight variation may be reduced due to the removal of various by-products and low molecular weight oligomers.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Inventors: Jae-IL CHUNG, Hyun Jun CHO, Han-Seok KIM, Deug-Soo KIM
  • Publication number: 20200235347
    Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 23, 2020
    Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
  • Patent number: 10658626
    Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 19, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
  • Patent number: 10625086
    Abstract: Apparatus and methods are provided for the generation of electrical power from acousto-mechanical vibrations originating from the vocal folds of the human body. The apparatus and methods can include one or more beams comprising a piezoelectric material, such as lead zirconate titanate (PZT), coupled to a power circuitry. Each of the one or more beams can also have a predetermined resonance frequency that is within the dominant frequency range of the human voice. The power circuitry can be adapted to receive the electrical charge received by the one or more piezoelectric beams and to convert the electrical charge into an electric current. The power circuitry can also be coupled to a battery for the storage of the converted energy, which in turn can provide power to implantable medical electronic devices (e.g., neurostimulators or cochlear implants) and/or wearable electronics.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 21, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Hyuck Choo, Hyun Jun Cho
  • Patent number: 9938487
    Abstract: Disclosed is a method for preparing fatty acid alkyl ester for bio-diesel fuels by reacting a raw material containing fat with water to prepare fatty acid, and then reacting the prepared fatty acid with alcohol. The method for preparing fatty acid alkyl ester for bio-diesel fuels includes the steps of: preparing fatty acid and glycerin by an hydrolysis reaction of a raw material containing fat and water at the temperature of 200 to 280° C. and the pressure of 30 to 80 bar; carrying out a phase separation of the fatty acid and the glycerin; and carrying out an esterification reaction of the separated fatty acid and alcohol at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 35 bar.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 10, 2018
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Soo-Hyun Kim, Hyun Jun Cho, Mi-Ran Lee
  • Patent number: 9925756
    Abstract: A method for fabricating a display device is provided. A laser having a power density is provided to a substrate coupling body. The substrate coupling body includes a first substrate and a second substrate coupled to the first substrate. The second substrate is separated from the first substrate. An optical property of the first substrate separated from the second substrate is measured. The power density of the laser is adjusted based on the optical property of the first substrate.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyung Chul Lim, Young Gu Kim, Hyun Jun Cho
  • Publication number: 20170346045
    Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.
    Type: Application
    Filed: August 18, 2017
    Publication date: November 30, 2017
    Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
  • Patent number: 9673014
    Abstract: A method of manufacturing a display panel includes forming a mother panel on a base substrate, attaching an upper passivation film to the mother panel, detaching the base substrate from the mother panel, attaching a lower film to the mother panel, and cutting the mother panel to which the upper passivation film and the lower film are attached to form the display panel, the display panel being in a form of a cell unit. The display panel includes a display substrate, a display device layer, and a thin film encapsulation layer.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Ji Kim, Young-Gu Kim, Hyun-Jun Cho, Hyo-Young Mun
  • Publication number: 20170120571
    Abstract: A method for fabricating a display device is provided. A laser having a power density is provided to a substrate coupling body. The substrate coupling body includes a first substrate and a second substrate coupled to the first substrate. The second substrate is separated from the first substrate. An optical property of the first substrate separated from the second substrate is measured. The power density of the laser is adjusted based on the optical property of the first substrate.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 4, 2017
    Inventors: HYUNG CHUL LIM, YOUNG GU KIM, HYUN JUN CHO
  • Publication number: 20170084815
    Abstract: Apparatus and methods are provided for the generation of electrical power from acousto-mechanical vibrations originating from the vocal folds of the human body. The apparatus and methods can include one or more beams comprising a piezoelectric material, such as lead zirconate titanate (PZT), coupled to a power circuitry. Each of the one or more beams can also have a predetermined resonance frequency that is within the dominant frequency range of the human voice. The power circuitry can be adapted to receive the electrical charge received by the one or more piezoelectric beams and to convert the electrical charge into an electric current. The power circuitry can also be coupled to a battery for the storage of the converted energy, which in turn can provide power to implantable medical electronic devices (e.g., neurostimulators or cochlear implants) and/or wearable electronics.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 23, 2017
    Inventors: Hyuck Choo, Hyun Jun Cho
  • Publication number: 20160152908
    Abstract: Disclosed is a method for preparing fatty acid alkyl ester for bio-diesel fuels by reacting a raw material containing fat with water to prepare fatty acid, and then reacting the prepared fatty acid with alcohol. The method for preparing fatty acid alkyl ester for bio-diesel fuels includes the steps of: preparing fatty acid and glycerin by an hydrolysis reaction of a raw material containing fat and water at the temperature of 200 to 280° C. and the pressure of 30 to 80 bar; carrying out a phase separation of the fatty acid and the glycerin; and carrying out an esterification reaction of the separated fatty acid and alcohol at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 35 bar.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 2, 2016
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Soo-Hyun KIM, Hyun Jun CHO, Mi-Ran LEE
  • Patent number: 9324968
    Abstract: A manufacturing method of an organic light emitting diode (OLED) display is disclosed. The manufacturing method in accordance with an exemplary embodiment includes: preparing a flexible substrate and a display panel including a thin film encapsulation (TFE) layer for covering and protecting an OLED formed on the flexible substrate; attaching a first protection film to the TFE layer by using a first adhesive to be opposite to the TFE layer; heating a second protection film; and pressing and attaching a second protection film onto the flexible substrate by using a second adhesive.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: April 26, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun Soo Lee, Young Gu Kim, Hyun Jun Cho, Young Ji Kim, Jeong Yong Eom
  • Publication number: 20150079707
    Abstract: A manufacturing method of an organic light emitting diode (OLED) display is disclosed. The manufacturing method in accordance with an exemplary embodiment includes: preparing a flexible substrate and a display panel including a thin film encapsulation (TFE) layer for covering and protecting an OLED formed on the flexible substrate; attaching a first protection film to the TFE layer by using a first adhesive to be opposite to the TFE layer; heating a second protection film; and pressing and attaching a second protection film onto the flexible substrate by using a second adhesive.
    Type: Application
    Filed: November 27, 2013
    Publication date: March 19, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Keun Soo LEE, Young Gu Kim, Hyun Jun Cho, Young Ji Kim, Jeong Yong Eom
  • Patent number: 8895765
    Abstract: A method for preparing fatty acid alkyl ester for bio-diesel fuel is disclosed wherein fatty acid, specifically fatty acid distillate reacts with alcohol. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuel comprises the step of carrying out a counter current type esterification reaction of fatty acid and alcohol in each tray of a counter current column reactor at a temperature of 200 to 350° C. and a pressure of 1 to 35 bar. Here the raw material of the fatty acid is fed to an upper part of the counter current column reactor and the alcohol is fed to a lower part of the counter current column reactor. The counter current column reactor has a number of trays which are installed horizontally to have a number of vertical compartments. Each of the number of trays has an opening part at one end thereof to communicate one compartment with an adjoining compartment.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 25, 2014
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Soo-Hyun Kim, Hyun-Jun Cho, Chan-Woo Moon, Byoung-Kyung Ham, Jae-Bong Lim