Patents by Inventor Wan Cheol Park

Wan Cheol Park 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: 10760174
    Abstract: The present invention relates to a leveling agent and electroplating composition comprising the same. When features are plated using the electroplating composition of the present invention, excellently leveled plated surfaces with minimized defects may be obtained.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: September 1, 2020
    Inventors: Min Jung Jang, Jong Cheol Yun, Wan Joong Kim, Hee Jeong Ryu, Seung Min Park
  • Publication number: 20200123671
    Abstract: The present invention relates to a electroplating composition and an electroplating method using the same.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 23, 2020
    Inventors: Jong Cheol YUN, Wan Joong KIM, Hee Jeong RYU, Seung Min PARK
  • Publication number: 20190161878
    Abstract: The present invention relates to a leveling agent and electroplating composition comprising the same. When features are plated using the electroplating composition of the present invention, excellently leveled plated surfaces with minimized defects may be obtained.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 30, 2019
    Inventors: Min Jung JANG, Jong Cheol YUN, Wan Joong KIM, Hee Jeong RYU, Seung Min PARK
  • Patent number: 8298416
    Abstract: The present invention relates to a deodorizing apparatus using native microorganisms. Specifically, the present invention relates to a deodorizing apparatus using native microorganisms for removal of malodors of sewage treatment plant sludge, comprising a native microorganism activating tank, where a colony of the native microorganisms in a spore state is germinated and activated through a proliferation process under conditions where oxygen and organic materials are supplied, and the native microorganisms returned from a second deodorizing tank is further activated; and a first and a second deodorizing tanks which remove malodorants from untreated matter under conditions where oxygen and the activated native microorganisms are continuously supplied.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 30, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Wan Cheol Park, Tae Hyung Kim, Mi Ae Lee, Kyung Lyong Choi
  • Publication number: 20110203984
    Abstract: The present invention relates to a deodorizing apparatus using native microorganisms. Specifically, the present invention relates to a deodorizing apparatus using native microorganisms for removal of malodors of sewage treatment plant sludge, comprising a native microorganism activating tank, where a colony of the native microorganisms in a spore state is germinated and activated through a proliferation process under conditions where oxygen and organic materials are supplied, and the native microorganisms returned from a second deodorizing tank is further activated; and a first and a second deodorizing tanks which remove malodorants from untreated matter under conditions where oxygen and the activated native microorganisms are continuously supplied.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 25, 2011
    Inventors: Wan Cheol Park, Tae Hyung Kim, Mi Ae Lee, Kyung Lyong Choi
  • Publication number: 20100015689
    Abstract: The present invention relates to a method of composting and treating food waste by using wood chips and an apparatus therefor. The method and apparatus for the composting and treatment of food waste in accordance with the present invention can recycle food waste as an organic compost by using wood chips in an eco-friendly manner and convert effluents generated from said food waste into an effluent satisfying water quality suitable for discharging by a combined biological and chemical process. Therefore, the present invention can be effectively used for recycling and treating food waste.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 21, 2010
    Inventors: Wan Cheol Park, Tae Hyung Kim, Mi Ae Lee
  • Patent number: 7033503
    Abstract: Disclosed are efficient municipal wastewater treatment apparatus and process characterized in that the nitrogen is removed by nitrification and denitrification reaction in the cyclic aeration reactor wherein Anaerobic state, Anoxic state and Oxic state are change into time concept in a single reactor, and the untreated organic materials are further removed by the 24-hour-continuous reactor.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 25, 2006
    Assignee: Korean Institute of Science and Technology
    Inventors: Wan Cheol Park, Tae Hyung Kim, Seung Ho Lee, Chang Ju Lee, Mi Ae Lee
  • Patent number: 6616844
    Abstract: The present invention is related to a method for treating high-concentrated organic wastewater, such as night soil or livestock wastewater, which has high levels of nitrogen and phosphorous. In particular, it is related to a method for treating night soil or livestock wastewater having high levels of nitrogen and phosphorous, comprising an anaerobic ammonium oxidizing (Anammox) step and a biopond step. The process for treating wastewater according to the present invention provides good efficiency in removing organic material and nutrients.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: September 9, 2003
    Assignee: Korea Institute of Science and Technology
    Inventors: Wan Cheol Park, Tae Hyung Kim, Chang Ju Lee, Hun Jung
  • Publication number: 20020074287
    Abstract: The present invention is related to a method for treating high-concentrated organic wastewater, such as night soil or livestock wastewater, which has high levels of nitrogen and phosphorous. In particular, it is related to a method for treating night soil or livestock wastewater having high levels of nitrogen and phosphorous, comprising an anaerobic ammonium oxidizing (Anammox) step and a biopond step. The process for treating wastewater according to the present invention provides good efficiency in removing organic material and nutrients.
    Type: Application
    Filed: October 9, 2001
    Publication date: June 20, 2002
    Inventors: Wan Cheol Park, Tae Hyung Kim, Chang Ju Lee, Hun Jung