Patents by Inventor Nam Cho

Nam 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: 9096737
    Abstract: The present invention relates to synthetic resin composition containing nano silver particles, in which a silver complex having a specific structure that allows formation of the nano silver particles is dissolved in monomer for the resin composition and the organic silver complex is decomposed with polymerization to prepare the synthetic resin composition containing the nano silver particles. The present invention can provide a method for resin compositions, which has simple and economic preparation process and allows uniform dispersion of the nano silver particles in the resin composition.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: August 4, 2015
    Assignee: Inktec Co., Ltd.
    Inventors: Myoung Seon Gong, Kwang Choon Chung, Hyun Nam Cho
  • Patent number: 9090785
    Abstract: The present invention relates to a silver ink composition comprising: silver complexes obtained by reacting one or more silver compounds selected from chemical formula 1 with one or more ammonium carbamate-based compounds or ammonium carbonate-based compounds selected from chemical formula 2 to chemical formula 4; and oxime-based compounds.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: July 28, 2015
    Assignee: INKTEC CO., LTD.
    Inventors: Kwang-Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Dae Sang Han
  • Publication number: 20150162866
    Abstract: The present disclosure relates to a photovoltaic system and, more particularly, to a supporting device for a solar panel employed in a photovoltaic system. A supporting device for a solar panel includes a buoyant member including an upper body in which a plurality of protrusions are formed upwardly and first and second props are formed on the protrusions to prop a solar panel, respectively, and a lower body in which a wing part is formed to be protruded from the side thereof and a lower surface is formed to be protruded downwardly, and a connector formed to have a box shape and connecting the buoyant members in a vertical direction or horizontal direction, wherein the buoyant members are coupled to the connector as the wing parts are coupled to the connector.
    Type: Application
    Filed: December 31, 2013
    Publication date: June 11, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Deok Yong YUN, Yong Nam CHO
  • Publication number: 20150147747
    Abstract: The present invention relates to a composition in which a conducting polymer is doped with a dopant, and a diagnostic apparatus, and more particularly, to a composition which is used to diagnose a disease and detect a biomaterial and also used for qualification and diagnosis by effectively and non-destructively collecting a captured biomaterial. Further, the composition can maximize capturing efficiency by being attached to a surface of a nano-structured scaffold and can be used as an ultrahigh-sensitive sensor using various linked bodies.
    Type: Application
    Filed: December 26, 2013
    Publication date: May 28, 2015
    Applicant: National Cancer Center
    Inventor: Young-Nam Cho
  • Patent number: 8979972
    Abstract: Disclosed herein is a method of manufacturing a metal flake, including the steps of: applying metal ink containing an organic metal compound onto a substrate; calcining the metal ink applied on the substrate to form a thin metal film; separating the formed thin metal film from the substrate; and pulverizing the separated thin metal film. The method of manufacturing a metal flake is characterized in that the thickness and size of metal flakes can be easily adjusted, metal flakes having excellent conductivity and gloss can be obtained, and metal flakes can be mass-produced using environmentally friendly and economical methods.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: March 17, 2015
    Assignee: Inktec Co., Ltd.
    Inventors: Kwang Choon Chung, Hyun Nam Cho, Dong Rip Kim, Ji Hoon Yoo
  • Patent number: 8921453
    Abstract: A nonaqueous ink composition for an ink jet and a method of manufacturing ink comprising the same are provided. The nonaqueous ink composition for the ink jet includes: a glycol ether acetate solvent represented by a specific chemical formula; and a polypropylene glycol binder represented by a specific chemical formula. The nonaqueous ink composition for an ink jet has dynamic viscoelasticity obtained by a chemical interaction between the solvent and the binder, exhibits excellent print quality and is capable of high-speed printing.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: December 30, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Young Kim, Jae Woo Joung, Sung Nam Cho, Ha Yoon Song
  • Patent number: 8916213
    Abstract: A process for the production of animal feed additives from fermentation broth containing L-lysine is disclosed. The process does not require filtering of biomass in order to remove the biomass and produces granulated lysine of controllable lysine content with a high bulk density, low viscosity, and a low hygroscopic property which does not require the addition of an anti-absorptive substance. In this process, a lysine fermentation broth produced after slant culture, flask culture, seed process, and cultivation process is concentrated to a solid content of about 44˜52%. A product with low hygroscopicity, high bulk density, and the intended amount of contents is produced after being mixed with substances for controlling the amount of contents and granulated by coating the surface of the seeds. This process enables a production of animal feed additives having a lysine-HCl content of at least 65%, a water content of at most 3%, and a bulk density of 670±50 kg/m3.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: December 23, 2014
    Assignee: CJ Corporation
    Inventors: Youn Jae Lee, Yong Bum Seo, Seung Woo Han, Jae Hun Yu, Soon Won Hong, Gyu Nam Cho, Won Seop Choi
  • Publication number: 20140370297
    Abstract: Disclosed herein is a conductive polymer composition capable of deteriorating water-absorption property and maintaining electrical conductivity by neutralizing polyethylenedioxythiophene/polystyrenesulfonate (PEDOT/PSS) with dicyclohexylmethylamine which is lipid-soluble tertiary amine, and a conductive film using the same.
    Type: Application
    Filed: September 30, 2013
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Young Kim, Sung Nam Cho, Young Kwan Seo
  • Patent number: 8900697
    Abstract: This invention relates to a surface modified silica by an alkyl sulfonated tetrazole compound, a preparation method thereof, and a resin composition containing the same. The silica according to this invention can exhibit superior adhesion to a metal.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 2, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Kwan Seo, Jin Won Lee, Sung Nam Cho, Jun Young Kim, Hyun Jung Lee
  • Patent number: 8866128
    Abstract: The present invention relates to a method capable of considerably improving the characteristics of an organic electroluminescent device. The present invention provides a method capable of reducing operating voltage and improving efficiency by inserting an inorganic oxide interlayer configured of at least one layer between light-emitting layers.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 21, 2014
    Assignee: Inktec Co., Ltd.
    Inventors: Hyun-Nam Cho, Ji-Hoon Yoo, Kwang-Choon Chung
  • Publication number: 20140263185
    Abstract: The present invention provides an etching solution for silver or silver alloy comprising one at least ammonium compound represented by the formula (1), (2) or (3) below and an oxidant:
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: Inktec Co., Ltd.
    Inventors: Kwang Choon Chung, Hyun-Nam Cho, Young-Kwan Seo
  • Patent number: 8831533
    Abstract: An apparatus and method for non-calibrated Automatic Frequency Correction (AFC) of a portable terminal are provided. The method includes identifying, by the portable terminal, signal strengths of signals received from neighboring base stations of a cell in which the portable terminal is currently located; searching for a frequency burst serving that provides synchronization acquisition information for synchronization with a base station; determining to perform the AFC according to a result of the searching for the frequency burst; and storing AFC data extracted through the AFC.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: September 9, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: In-Tae Jun, Young-Nam Cho, Ho-Nam Kim, Jae-Young Roh, Jae-Young Yun
  • Patent number: 8828352
    Abstract: A process for preparation of silver oxide with various shape and size using a silver complex compound having a special structure, includes 1) step of preparing a precursor solution including a silver complex compound obtained by reacting a silver compound with one or more mixture selected from the group consisting of an ammonium carbamate-based compound, an ammonium carbonate-based compound or an ammonium bicarbonate-based compound in the presence of a solvent; and 2) step of preparing silver oxide by reacting the precursor solution including the silver complex compound of step 1) with an oxidant. The shape and particle size of the silver oxide prepared according to the preparation process can be changed.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 9, 2014
    Assignee: Inktec Co., Ltd.
    Inventors: Kwang Choon Chung, Hyun Nam Cho, Ji Hoon Yoo, Kee In Son
  • Patent number: 8821753
    Abstract: The present invention provides an etching solution for silver or silver alloy comprising one at least ammonium compound represented by the formula (1), (2) or (3) below and an oxidant:
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: September 2, 2014
    Assignee: Inktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Young-Kwan Seo
  • Publication number: 20140186593
    Abstract: Disclosed herein are a resin composition for a printed circuit board, an insulating film, a prepreg, and a printed circuit board, the resin composition including: a composite epoxy resin containing a bisphenol A type epoxy resin, a cresol novolac epoxy resin, a rubber-modified epoxy resin, a phosphorus based epoxy resin, and an alkyl sulfonated tetrazole-modified epoxy resin; and a curing agent. The insulating film and the prepreg according to the present invention may have basically low coefficient of thermal expansion, excellent heat resistance, a high glass transition temperature, and excellent adhesion force with the metal.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Kwan Seo, Jin Won Lee, Sung Nam Cho, Jun Young Kim, Hyun Jung Lee
  • Publication number: 20140187677
    Abstract: This invention relates to a surface modified silica by an alkyl sulfonated tetrazole compound, a preparation method thereof, and a resin composition containing the same. The silica according to this invention can exhibit superior adhesion to a metal.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Kwan Seo, Jin Won Lee, Sung Nam Cho, Jun Young Kim, Hyun Jung Lee
  • Patent number: 8764960
    Abstract: The present invention relates to the manufacturing method of metal clad laminates by forming a conductive layer on a single side or both sides of a material film that is made of an insulating material using the silver complexes having a unique structure and electroplating metals outside of said conductive layer. The present invention can provide the manufacturing method of metal clad laminates, which has a fast operation speed for mass production, simple process steps to minimize defective ratio and cheap production cost.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: July 1, 2014
    Assignee: Inktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Seong-Yong Uhm
  • Publication number: 20140179944
    Abstract: The present invention relates to a silver complex obtained by reacting at least one silver compound represented by the formula 2 below with at least one ammonium carbamate compound or ammonium carbonate compound represented by the formula 3, 4 or 5 below: wherein X, R1, R2, R3, R4, R5, and R6 are as defined herein.
    Type: Application
    Filed: October 22, 2013
    Publication date: June 26, 2014
    Applicant: Inktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yi-Sup Han, Jeong-Bin Park, Dong-Hun Nam, Seoung-Yong Uhm, Young-Kwan Seo
  • Publication number: 20140106492
    Abstract: The invention relates to methods for fabricating an optoelectronic device, including: directly applying a printing ink composition to a patterning process, wherein the printing ink composition includes (1) at least one compound selected from the group of compounds represented by Chemical Formula 1, Chemical Formula 2, Chemical Formula 3, and mixtures thereof as disclosed herein in an amount of 0.01-90 wt % based on the total weight of the composition and (2) at least one material for an optoelectronic device.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: Iinktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Hyun Nam Cho, Ji Hoon Yoo
  • Patent number: 8679242
    Abstract: The present invention relates to a silver complex obtained by reacting at least one silver compound represented by the formula 2 below with at least one ammonium carbamate compound or ammonium carbonate compound represented by the formula 3, 4 or 5 below:
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 25, 2014
    Assignee: Inktec Co., Ltd.
    Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yi-Sup Han, Jeong-Bin Park, Dong-Hun Nam, Seong-Yong Uhm, Young-Kwan Seo