Patents by Inventor Jae Do Nam

Jae Do Nam 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: 11631774
    Abstract: Disclosed are a substrate for a solar cell and a method for manufacturing the same. The method include putting negative and positive electrodes facing away from each other into suspension in which at least two different types of negatively charged cellulose nanofibers are dispersed; applying a voltage across the positive and negative electrodes such that the cellulose fibers are adsorbed onto a surface of the negative electrode; and drying the negative electrode having the cellulose fibers adsorbed thereon.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: April 18, 2023
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Do Nam, Jun Young Kim, Ui Seok Hwang
  • Publication number: 20220359773
    Abstract: Disclosed are a substrate for a solar cell and a method for manufacturing the same. The method include putting negative and positive electrodes facing away from each other into suspension in which at least two different types of negatively charged cellulose nanofibers are dispersed; applying a voltage across the positive and negative electrodes such that the cellulose fibers are adsorbed onto a surface of the negative electrode; and drying the negative electrode having the cellulose fibers adsorbed thereon.
    Type: Application
    Filed: March 7, 2022
    Publication date: November 10, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jae Do NAM, Jun Young KIM, Ui Seok HWANG
  • Publication number: 20220235252
    Abstract: The inorganic particle according to the present invention is composed of aggregation of crystalline and amorphous small particles and has a spherical and smooth surface. The spherical appearance, low crystallinity and narrow particle size distribution of inorganic particle are more advantageous in reducing scratch defects in the CMP process. In addition, since the small particles on the surface of the inorganic particle provide more active sites, the inorganic particle has an excellent removal rate, so it is advantageous as a next-generation CMP abrasive.
    Type: Application
    Filed: February 26, 2021
    Publication date: July 28, 2022
    Inventors: Jae-Do NAM, Na-Yeon KIM, In-Kyung PARK, Uiseouk HWANG, Donghak KIM
  • Publication number: 20220225550
    Abstract: Disclosed are an electromagnetic interference shielding composite that selectively absorbs and shields an electromagnetic wave, and an electronic device using the same. The electromagnetic interference shielding composite includes a first composite layer, wherein the first composite layer includes: a matrix; and reflective particles and absorbent particles dispersed in the matrix, wherein the reflective particles reflect an electromagnetic wave, wherein the absorbent particles absorb the electromagnetic wave and convert the absorbed electromagnetic wave to heat energy and emit the heat energy.
    Type: Application
    Filed: September 9, 2021
    Publication date: July 14, 2022
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Do NAM, Ui Seok HWANG, Na Yeon KIM, In Kyung PARK
  • Patent number: 11130853
    Abstract: The present invention relates to a cellulose-containing polypropylene composite resin which is environmentally friendly, and can reduce emission of carbon dioxide and contribute to improvement in fuel efficiency, based on reduced vehicle weight, and a vehicle thin film pillar trim including the same.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: September 28, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Research & Business Foundation Sungkyunkwan University
    Inventors: Jin Ho Hwang, Dae Ig Jung, Seung Hyeok Chang, Min Ho Cho, Sung Hoon Kim, Jae Do Nam
  • Publication number: 20190177521
    Abstract: The present invention relates to a cellulose-containing polypropylene composite resin which is environmentally friendly, and can reduce emission of carbon dioxide and contribute to improvement in fuel efficiency, based on reduced vehicle weight, and a vehicle thin film pillar trim including the same.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 13, 2019
    Inventors: Jin Ho Hwang, Dae Ig Jung, Seung Hyeok Chang, Min Ho Cho, Sung Hoon Kim, Jae Do Nam
  • Patent number: 9346904
    Abstract: The present invention provides a thermoplastic lignin polycondensate. The thermoplastic lignin polycondensate produces no fumes and odor even at a normal melt processing temperature. The melt viscosity of the thermoplastic lignin polycondensate can be measured even when heated to 200° C. or more. The thermoplastic lignin polycondensate can be prepared by selectively activating the hydroxyl reactive groups of lignin to suppress the crosslinking reaction of the hydroxyl reactive groups, which allows a linear or grafted linear growth of the lignin polycondensate.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: May 24, 2016
    Inventors: Jae-Do Nam, Dong Kwan Kim
  • Publication number: 20150225498
    Abstract: The present invention provides a thermoplastic lignin polycondensate. The thermoplastic lignin polycondensate produces no fumes and odor even at a normal melt processing temperature. The melt viscosity of the thermoplastic lignin polycondensate can be measured even when heated to 200° C. or more. The thermoplastic lignin polycondensate can be prepared by selectively activating the hydroxyl reactive groups of lignin to suppress the crosslinking reaction of the hydroxyl reactive groups, which allows a linear or grafted linear growth of the lignin polycondensate.
    Type: Application
    Filed: September 6, 2013
    Publication date: August 13, 2015
    Inventors: Dong Kwan Kim, Jae-Do Nam
  • Patent number: 9007072
    Abstract: There is provided a capacitor sensor capable of controlling sensitivity, wherein the capacitor sensor measures the magnitude and direction of a shear force applied to the sensor, as well as the magnitude of a normal force applied on the surface of the sensor, and consists of a single cell including a pattern electrode capable of varying its shape to control the sensitivity of the sensor.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 14, 2015
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Ja Choon Koo, Hyouk Ryeol Choi, Hyung Pil Moon, Young Kwan Lee, Jae Do Nam, Baek Chul Kim, Jin Ah Chung, Sung Gi Kim
  • Publication number: 20130093437
    Abstract: There is provided a capacitor sensor capable of controlling sensitivity, wherein the capacitor sensor measures the magnitude and direction of a shear force applied to the sensor, as well as the magnitude of a normal force applied on the surface of the sensor, and consists of a single cell including a pattern electrode capable of varying its shape to control the sensitivity of the sensor.
    Type: Application
    Filed: August 8, 2012
    Publication date: April 18, 2013
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Ja Choon KOO, Hyouk Ryeol CHOI, Hyung Pil MOON, Young Kwan LEE, Jae Do NAM, Baek Chul KIM, Jin Ah CHUNG, Sung Gi KIM
  • Publication number: 20120237692
    Abstract: A method for coating a substrate with a plate type nanomaterial is provided. The method involves preparing a dispersed solution containing the plate type nanomaterial and a surface active agent, dipping the substrate into the dispersed solution, and drying the substrate after withdrawing the substrate from the dispersed solution. Also provided herein are a dipping solution used for coating the substrate, and a method of preparing a dipping solution for coating a substrate with a plate type nanomaterial.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 20, 2012
    Inventors: Jae Do NAM, Joon Suk Oh, Tae Seon Hwang
  • Publication number: 20110284388
    Abstract: According to an example embodiment a method of plating resin using a graphene thin layer includes forming a graphene thin layer on a resin substrate and electroplating the resin substrate having the graphene thin layer fog on the resin substrate.
    Type: Application
    Filed: April 1, 2011
    Publication date: November 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ah Hyun Bae, Sang Ik Son, Jae Do Nam, Jun Ho Lee, Tae Seon Hwang, Joon Suk Oh
  • Patent number: 8053023
    Abstract: In a method of forming a conductive layer, a conductive layer formed using the method, an organic electroluminescent device including the conductive layer, and a method of manufacturing the organic electroluminescent device, the method of forming the conductive layer comprises: pre-treating a substrate in order to improve adhesive force; coating a mixture solution which contains a sulfonate-based catalyst and a solvent on the substrate, and then drying the coated product; and performing vapor-phase polymerization by contacting the substrate on which the catalyst is coated with monomers which make up a conductive polymer in a vapor phase. The conductive layer obtained using the method of forming a conductive layer has high conductivity, high transmittance with respect to light having a wavelength of 300 nm to 700 nm, uniform thickness, and thermal-chemical stability.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: November 8, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Jin Park, Tae-Woo Lee, Eun-Sil Han, Lyong-Sun Pu, Young-Kwan Lee, Jae-Do Nam
  • Publication number: 20110269872
    Abstract: Provided is a method for preparing a polymer nano-composite, more particularly, an economical method for preparing a polymer nano-composite with improved properties via a single process of organic treatment of a layered clay mineral and dispersion in a rubber latex material at a pH where both the rubber latex material and the layered clay mineral are stabilized. The provided method for preparing a polymer nano-composite allows effective dispersion without using an organic modification process for improving dispersibility of the layered clay mineral in resin. Thus prepared polymer nano-composite exhibits superior mechanical property and may be usefully applied for automobile interior and exterior materials.
    Type: Application
    Filed: October 28, 2010
    Publication date: November 3, 2011
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jae-Do Nam, Chan-Woo Lee, Jong Min Park, Wan Sul Lee, Seong Hoon Lee
  • Publication number: 20110215282
    Abstract: A method of adsorbing dye to a metal oxide particle by using a supercritical fluid, and a solar cell prepared using the method.
    Type: Application
    Filed: July 21, 2010
    Publication date: September 8, 2011
    Inventors: Byong-Cheol Shin, Ji-Won Lee, Moon-Sung Kang, Jae-Do Nam, Jun-Ho Lee
  • Publication number: 20110201242
    Abstract: Provided is a fiber for detecting a target, a method of preparing the fiber for detecting the target, a method of detecting the target in a sample, a fiber complex including the fiber for detecting the target, and a kit including the fiber for detecting the target. The fiber may include a polymer, a target detecting material, and a metal nanoparticle, wherein the target material and the metal nanoparticle are fixed to the polymer. The method of preparing a fiber may include preparing a composition that includes a polymer, a target detecting material, and a metal nanoparticle and spinning the composition to prepare the fiber.
    Type: Application
    Filed: August 25, 2010
    Publication date: August 18, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-hyun Hur, Jong-jin Park, Hyung-bin Son, Jae-do Nam
  • Publication number: 20100132175
    Abstract: The present invention provides an electroactive solid-state actuator, including a solid polymer electrolyte film having first and second main surfaces facing each other, and first and second conductive polymer layers infiltrated into the first and second main surfaces of the solid polymer electrolyte film. Further, a method of manufacturing the electroactive solid-state actuator is provided, the method including preparing a solid polymer film having first and second main surfaces facing each other, infiltrating a monomer of a conductive polymer into the first and second main surfaces of the solid polymer film, followed by polymerization, to form first and second conductive polymer layers, and immersing the solid polymer film into an ionic liquid or liquid electrolyte to be converted to an electrically conductive polymer.
    Type: Application
    Filed: January 20, 2010
    Publication date: June 3, 2010
    Applicants: SAMSUNG ELECTRO-MECHANICS CO. LTD., SUNGKYUNKWAN UNIVERSITY
    Inventors: Kwi Jong Lee, Young Kwan Lee, Jae Do Nam, Hyouk Ryeol Choi, Mi Suk Cho, Ja Choon Koo
  • Patent number: 7671514
    Abstract: The present invention provides an electroactive solid-state actuator, including a solid polymer electrolyte film having first and second main surfaces facing each other, and first and second conductive polymer layers infiltrated into the first and second main surfaces of the solid polymer electrolyte film. Further, a method of manufacturing the electroactive solid-state actuator is provided, the method including preparing a solid polymer film having first and second main surfaces facing each other, infiltrating a monomer of a conductive polymer into the first and second main surfaces of the solid polymer film, followed by polymerization, to form first and second conductive polymer layers, and immersing the solid polymer film into an ionic liquid or liquid electrolyte to be converted to an electrically conductive polymer.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: March 2, 2010
    Assignees: Samsung Electro-Mechanics. Co. Ltd, Sungkyunkwan University
    Inventors: Kwi Jong Lee, Young Kwan Lee, Jae Do Nam, Hyouk Ryeol Choi, Mi Suk Cho, Ja Choon Koo
  • Patent number: 7588853
    Abstract: The present invention relates to a direct methanol fuel cell having reduced methanol crossover. The fuel cell includes a layer of material for controlling the diffusion rate of fuel.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 15, 2009
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Chan-Hwa Chung, Woo-Jae Kim, Hoo-Gon Choi, Young-Kwan Lee, Sung-Min Cho, Jae-Do Nam
  • Patent number: 7276091
    Abstract: A method of producing a polymer capacitor includes forming a first electrode on a surface of a first ion exchange resin solid and coating a mixture of an ion exchange resin solution and a salt on the other surface of the first resin; putting a second ion exchange resin solid which has a second electrode formed on a surface thereof on the coated layer and conducting lamination of the resulting structure to produce a composite; dissolving the salt to form pores; and filling the pores with an electrolytic solution.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: October 2, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Choong Nam Park, Young Kwan Lee, Jae Do Nam, Kwi Jong Lee