Patents by Inventor Sun-hwa Yang

Sun-hwa Yang 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: 20240125706
    Abstract: A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 18, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: SOOCHEOL KIM, JeongKyun KIM, Hyunseok KIM, Jin Hwa RYU, SO YUNG PARK, Hoe-Sung YANG, KANG BOK LEE, Sun-Hwa LIM, Kwang-Soo CHO, Kyu Won HAN, Sang Gi HONG
  • Patent number: 8562938
    Abstract: The present invention relates to a composite sintering materials using a carbon nanotube (including carbide nano particles, hereinafter the same) and a manufacturing method thereof, the method comprises the steps of: combining or generating carbon nanotubes in metal powders, a compacted product, or a sintered product; growing and alloying the carbon nanotubes by compacting or sintering the metal powders, the compacted product, or the sintered product; and strengthening the mechanical characteristics by repeatedly performing the sintering process and the combining process or the generating process of the carbon nanotubes.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 22, 2013
    Inventors: Sang-chul Ahn, Sun-hwa Yang, Hyeung-eun Ahn
  • Patent number: 8506922
    Abstract: The present invention relates to a composite sintering materials using a carbon nanotube (including carbide nano particles, hereinafter the same) and a manufacturing method thereof, the method comprises the steps of: combining or generating carbon nanotubes in metal powders, a compacted product, or a sintered product; growing and alloying the carbon nanotubes by compacting or sintering the metal powders, the compacted product, or the sintered product; and strengthening the mechanical characteristics by repeatedly performing the sintering process and the combining process or the generating process of the carbon nanotubes.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: August 13, 2013
    Assignee: C & Tech Co., Ltd.
    Inventors: Sang-chul Ahn, Sun-hwa Yang, Hyeung-eun Ahn
  • Publication number: 20120134869
    Abstract: The present invention relates to a manufacturing method of composite sintering materials using a carbon nanotube comprises the steps of; dipping diluted HF solution, natal, or phosphoric acid along with a carbon nanotube solution dispersed to metal power, forming a predetermined form by pressing the master alloys, sintering the predetermined form in an atmosphere of nitrogen gas to grow the carbon nanotube, generating the carbon nanotube in the pores of the predetermined form by inserting ammonia, carbon dioxide carbonated water, acetylene, methane, methanol, or benzene to the sintered product in an inert gas atmosphere of a temperature about 1200° C. to add a toughness; and re-sintering the sintered product in which the carbon nanotube is generated in the atmosphere of nitrogen gas to growth the carbon nanotube.
    Type: Application
    Filed: January 5, 2012
    Publication date: May 31, 2012
    Applicant: C & TECH CO., LTD.
    Inventors: Sang-chul Ahn, Sun-Hwa Yang, Hyung-eun Ahn
  • Publication number: 20120134870
    Abstract: The present invention relates to a manufacturing method of composite sintering materials using a carbon nanotube comprises the steps of; pressing metal power to obtain a predetermined form, heating the predetermined form in an atmosphere of nitrogen gas for sintering, dipping and heating a sintered product obtained by the sintering process to an organic solution dispersed with a carbon nanotube to combine the carbon nanotube for generating the carbon nanotube, and sintering the sintered product in an atmosphere of nitrogen gas for re-sintering to grow the generated carbon nanotube. The composite sintering materials using carbon nanotubes of the present invention have excellent mechanical, thermal, and electric and electronic characteristics as well as have effects of material cost reduction and manufacturing cost reduction due to reduced sintering temperature.
    Type: Application
    Filed: January 5, 2012
    Publication date: May 31, 2012
    Applicant: C & TECH CO., LTD.
    Inventors: Sang-chul Ahn, Sun-hwa Yang, Hyung-eun Ahn
  • Patent number: 8119095
    Abstract: The present invention relates to a composite sintering materials using a carbon nanotube (including carbide nano particles, hereinafter the same) and a manufacturing method thereof, the method comprises the steps of: combining or generating carbon nanotubes in metal powers, a compacted product, or a sintered product; growing and alloying the carbon nanotubes by compacting or sintering the metal powers, the compacted product, or the sintered product; and strengthening the mechanical characteristics by repeatedly performing the sintering process and the combining process or the generating process of the carbon nanotubes.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 21, 2012
    Assignee: C & Tech Co., Ltd.
    Inventors: Sang-chul Ahn, Sun-hwa Yang, Hyeung-eun Ahn
  • Publication number: 20100051881
    Abstract: The present invention relates to a composite sintering materials using a carbon nanotube (including carbide nano particles, hereinafter the same) and a manufacturing method thereof, the method comprises the steps of: combining or generating carbon 5 nanotubes in metal powers, a compacted product, or a sintered product; growing and alloying the carbon nanotubes by compacting or sintering the metal powers, the compacted product, or the sintered product; and strengthening the mechanical characteristics by repeatedly performing the sintering process and the combining process or the generating process of the carbon nanotubes.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 4, 2010
    Applicant: C & TECH CO., LTD.
    Inventors: Sang-chul Ahn, Sun-hwa Yang, Hyeung-eun Ahn