Patents by Inventor Jae-woo Chung

Jae-woo Chung 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: 20210289907
    Abstract: Provided is a cordless hair dryer. The cordless hair dryer includes a housing including a body part gripped by a user and a head part having a blower tube therein, a battery disposed inside the body part, a blower fan disposed in one end of the head part, a support which is inserted into the other end of the head part and fixed to an inner side of the blower tube, and a planar heating element which is formed as a carbon nanotube sheet and disposed on the support to receive power from the battery.
    Type: Application
    Filed: November 7, 2019
    Publication date: September 23, 2021
    Applicant: Foundation of Soongsil University-Industry Cooperation
    Inventors: Young Jin JEONG, Jae Woo CHUNG, Hyeon Jun SONG
  • Patent number: 11001676
    Abstract: Disclosed are a supramolecular structure including a plurality of first oligomers having a zwitterion at the terminal end and a plurality of second oligomers having a hydrogen-bondable functional group at the terminal end, wherein a supramolecule including the plurality of first oligomers and a supramolecule including the plurality of second oligomers form a three-dimensional network structure, and a method of manufacturing the same, a self-healing elastomer, a self-healing film, and an electronic device.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: May 11, 2021
    Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Jae Woo Chung, Junhaeng Lee, Seayoung Lim, Sunghoon Jung, Yong Chae Jung, Seokhoon Ahn
  • Publication number: 20200079914
    Abstract: Disclosed are a supramolecular structure including a plurality of first oligomers having a zwitterion at the terminal end and a plurality of second oligomers having a hydrogen-bondable functional group at the terminal end, wherein a supramolecule including the plurality of first oligomers and a supramolecule including the plurality of second oligomers form a three-dimensional network structure, and a method of manufacturing the same, a self-healing elastomer, a self-healing film, and an electronic device.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 12, 2020
    Inventors: Jae Woo CHUNG, Junhaeng LEE, Seayoung LIM, Sunghoon JUNG, Yong Chae JUNG, Seokhoon AHN
  • Patent number: 10193549
    Abstract: In one aspect, a modular sensing apparatus will be described. The modular sensing apparatus includes a flexible substrate and multiple sensors. The flexible substrate is reconfigurable into different shapes that conform to differently shaped structures. The multiple sensors are positioned on the substrate. Various embodiments relate to software, devices and/or systems that involve or communicate with the modular sensing apparatus.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nan-Wei Gong, Tobias Rick, Arun Rakesh Yoganandan, Henry Holtzman, Jae Woo Chung, Kumi Akiyoshi
  • Publication number: 20180315092
    Abstract: The present invention relates to an Internet content providing server and a computer-readable recording medium in which an Internet content providing method is implemented. The internet content providing server according to an exemplary embodiment of the present invention extracts an interest keyword by collecting and analyzing an action of a user of an Internet content and applies a weighted value based on an action of the user to the extracted interest keyword, and provides an Internet content having a high degree of interest of the user.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Inventor: Jae Woo CHUNG
  • Patent number: 10072196
    Abstract: Disclosed is a method of preparing a graphene-graphene fused material, including: forming a plurality of nano graphene-metal composites comprised of nano graphene and a nano metal provided on a surface of the nano graphene for bonding between the nano graphenes; forming a polydopamine layer on outer surfaces of the nano graphene-metal composites; and thermally treating the nano graphene-metal composites to prepare a graphene-graphene fused material in which the nano graphene-metal composites are melted and bonded to each other by the nano metal provided on the nano graphene-metal composites.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 11, 2018
    Assignee: AMOGREENTECH CO., LTD.
    Inventors: Jae Woo Chung, Jung Hyun Kim
  • Publication number: 20170187377
    Abstract: In one aspect, a modular sensing apparatus will be described. The modular sensing apparatus includes a flexible substrate and multiple sensors. The flexible substrate is reconfigurable into different shapes that conform to differently shaped structures. The multiple sensors are positioned on the substrate. Various embodiments relate to software, devices and/or systems that involve or communicate with the modular sensing apparatus.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 29, 2017
    Inventors: Nan-Wei Gong, Tobias Rick, Arun Rakesh Yoganandan, Henry Holtzman, Jae Woo Chung, Kumi Akiyoshi
  • Publication number: 20160272865
    Abstract: Disclosed is a method of preparing a graphene-graphene fused material, including: forming a plurality of nano graphene-metal composites comprised of nano graphene and a nano metal provided on a surface of the nano graphene for bonding between the nano graphenes; forming a polydopamine layer on outer surfaces of the nano graphene-metal composites; and thermally treating the nano graphene-metal composites to prepare a graphene-graphene fused material in which the nano graphene-metal composites are melted and bonded to each other by the nano metal provided on the nano graphene-metal composites.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Applicant: NANO CAST TECH Co., Ltd.
    Inventors: Jae Woo CHUNG, Jung Hyun KIM
  • Patent number: 9418769
    Abstract: An electrically conductive carbon nanotube-metal composite ink may include a carbon nanotube-metal composite in which metal nanoparticles are bound to a surface of a carbon nanotube by chemical self-assembly. The electrically conductive carbon nanotube-metal composite ink may have higher electrical conductivity than a commonly used metal nanoparticles-based conductive ink, and may also be used in deformable electronic devices that are flexible and stretchable, as well as commonly used electronic devices, due to the bending and stretching properties of the carbon nanotube itself.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-woo Chung, Seung-hyun Baik, Joong-hyuk Kim, Ru-jun Ma, Young-seok Oh, Dae-woo Suh
  • Patent number: 9409391
    Abstract: A method of driving a hybrid inkjet printing apparatus includes applying an electrostatic voltage to ink contained in a nozzle, applying a waveform voltage to ink contained in the nozzle, the waveform voltage being applied by a piezoelectric driving device, and applying an ejection voltage so as to eject the ink.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-hyuk Kim, Young-ki Hong, Jae-woo Chung
  • Patent number: 9385147
    Abstract: Thin film transistors (TFT) and methods of manufacturing the same. A TFT includes a line-shaped gate of uniform thickness. A cross-section of the gate is curved where a side surface and a top surface meet. The gate includes one, or two or more gate lines.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-ki Hong, Jae-woo Chung, Seung-ho Lee, Joong-hyuk Kim
  • Patent number: 9233540
    Abstract: A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ki Hong, Sung-gyu Kang, Jae-woo Chung, Seung-ho Lee, Joong-hyuk Kim, Yong-wan Jin
  • Patent number: 9153487
    Abstract: A method of forming a wiring may include forming a first wire on a substrate; forming a material layer on the substrate, except on the first wire; forming a surface treatment film on the material layer; and forming a second wire on the first wire. The surface treatment film has physical properties opposite to the first wire. A method of forming a wiring may include forming a first wire on a substrate; forming a material layer on the substrate and the first wire; removing a portion of the material layer from the first wire; forming a surface treatment film on the material layer and the first wire; removing a portion of the surface treatment film from the first wire; and forming a second wire on the first wire. A thickness of the material layer on the substrate is greater than a thickness of the first wire on the substrate.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-ho Lee, Young-ki Hong, Sung-gyu Kang, Joong-hyuk Kim, Jae-woo Chung
  • Publication number: 20150280207
    Abstract: The present invention relates to a method of preparing a graphene-substrate composite using a graphene-graphene fused material. The method of preparing a graphene-substrate composite includes (a) forming a nano graphene-metal fused material comprised of nano-graphene and nano metal, (b) thermally treating the plurality of nano graphene-metal fused materials at a temperature higher than a melting point of the nano metal to connect the plurality of nano graphene-metal fused materials to each other by a melting bonding of the nano metal to form a graphene-graphene fused material, (c) pulverizing the graphene-graphene fused material to form a graphene-graphene fused material powder, and (d) dispersing the graphene-graphene fused material powder in a substrate to form a graphene-substrate composite.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 1, 2015
    Applicant: NANO CAST TECH Co., Ltd.
    Inventors: Jae Woo CHUNG, Jung Hyun KIM
  • Patent number: 9050793
    Abstract: An inkjet printing device includes a flow path plate comprising a manifold to supply ink, a pressure chamber filled with the ink supplied from the manifold, and a nozzle via which the ink is ejected, a piezoelectric actuator which is disposed on a top surface of the flow path plate and includes a lower electrode, a piezoelectric layer, and an upper electrode that are stacked sequentially, a first electrostatic electrode to generate an electrostatic field, and a second electrostatic electrode which is disposed a predetermined distance apart from a bottom surface of the flow path plate to generate the electrostatic field between the first electrostatic electrode and the second electrostatic electrode.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-woo Chung, Young-ki Hong, Sung-gyu Kang
  • Patent number: 9018036
    Abstract: A method of forming patterns on a substrate, the method including: placing a mask having an opening defining a portion of one surface of a substrate on which patterns are to be formed on the substrate; forming a first modification layer in the opening by ejecting a surface modification ink onto a surface of the substrate through the opening; ejecting a target ink having droplets of sizes larger than those of a surface modification ink such that the target ink is distributed on the first modification layer in the opening; and removing the mask.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: April 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-hyuk Kim, Sung-gyu Kang, Seung-ho Lee, Jae-woo Chung, Young-ki Hong
  • Publication number: 20150035911
    Abstract: A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle.
    Type: Application
    Filed: October 21, 2014
    Publication date: February 5, 2015
    Inventors: Young-ki HONG, Sung-gyu KANG, Jae-woo CHUNG, Seung-ho LEE, Joong-hyuk KIM, Yong-wan JIN
  • Patent number: 8898902
    Abstract: A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-ki Hong, Sung-gyu Kang, Jae-woo Chung, Seung-ho Lee, Joong-hyuk Kim, Yong-wan Jin
  • Patent number: 8888244
    Abstract: A printing apparatus includes a first nozzle substrate having a first tapered nozzle unit aligned with a pressure chamber and a second nozzle substrate having a second tapered nozzle unit aligned with the first tapered nozzle unit and attached to the bottom of the first nozzle substrate.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-gyu Kang, Young-ki Hong, Joong-hyuk Kim, Seung-ho Lee, Jae-woo Chung, Yong-wan Jin
  • Patent number: 8813363
    Abstract: A method of manufacturing a piezoelectric inkjet printhead includes processing a lower silicon-on-insulator substrate having a sequentially stacked structure with a first silicon layer, an intervening oxide layer, and a second silicon layer, processing the lower silicon-on-insulator substrate by etching the second silicon layer to form a manifold, a plurality of pressure chambers arranged along at least one side of the manifold and connected with the manifold, and a plurality of dampers connected with the pressure chambers, and by etching the first silicon layer and the intervening oxide layer to form a plurality of vertical nozzles through the first silicon layer and the intervening oxide layer to corresponding ones of the plurality of dampers, stacking and bonding an upper substrate on the lower substrate, reducing the upper substrate to a predetermined thickness, and forming a piezoelectric actuator on the upper substrate.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-chang Lee, Jae-woo Chung, Kyo-yool Lee, Chang-seung Lee, Sung-gyu Kang