Patents by Inventor Hey Zoo Hwang

Hey Zoo Hwang 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: 7097706
    Abstract: The object of this invention is to provide a non-calcined clay composite used as building materials capable of promoting humans' health and being desirably used irrespective of location, which is improved in terms of strength without calcining clay. Because the non-calcined clay composite is produced without calcining clay, the process of producing it is simplified and its productivity is improved. The non-calcined clay composite includes 50 to 90 wt % clay, 2 to 30 wt % lime, 4 to 48 wt % blast furnace slag, 0.04 to 0.9 wt % alkaline chemical, and water as a balance, and has high compression strength due to an ionic coagulation reaction, a pozzolan reaction, and a latent hydraulic reaction.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 29, 2006
    Assignee: G Plus Co., Ltd.
    Inventors: Hee-Yong Choi, Hey-Zoo Hwang, Min-Chol Cho, Tae-Sung Park, Yu-Son Chu
  • Publication number: 20050164868
    Abstract: The object of this invention is to provide a non-calcined clay composite used as building materials capable of promoting humans' health and being desirably used irrespective of location, which is improved in terms of strength without calcining clay. Because the non-calcined clay composite is produced without calcining clay, the process of producing it is simplified and its productivity is improved. The non-calcined clay composite includes 50 to 90 wt % clay, 2 to 30 wt % lime, 4 to 48 wt % blast furnace slag, 0.04 to 0.9 wt % alkaline chemical, and water as a balance, and has high compression strength due to an ionic coagulation reaction, a pozzolan reaction, and a latent hydraulic reaction.
    Type: Application
    Filed: April 14, 2003
    Publication date: July 28, 2005
    Inventors: Hee-Yong Choi, Hey-Zoo Hwang, Min-Chol Cho, Tae-Sung Park, Yu-Son Chu
  • Patent number: 6290771
    Abstract: The activated kaolin powder compound is prepared from naturally-existing kaolin (hereinafter “natural kaolin”). The activated kaolin powder compound is prepared by heating natural kaolin to 480° C. within at most one hour, calcinating the heated natural kaolin at high temperature by heating in the range of 800˜950° C. over at least 15 minutes, quenching the calcinated kaolin with water or air, and pulverizing the quenched activated kaolin to give powder having particle sizes of 2 &mgr;m or less, wherein the natural kaolin is primarily composed of halloysite (Al2O3.2SiO2.4H2O). The activated kaolin powder compound is employed in an amount of about 5 to 15% by weight of cement for preparing mortar or cement. The cement composition containing the activated kaolin powder compound can provide a mortar or concrete having excellent properties in compressive strength, flexural strength and water permeability.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: September 18, 2001
    Inventors: Moon Han Kim, Hey Zoo Hwang, Jung Ha Hwang, Hee Sung Cha, Kwang Choon Kim, Jong Kuk Lee
  • Patent number: 5976241
    Abstract: The activated kaolin powder compound is prepared from naturally-existing kaolin (hereinafter "natural kaolin"). The activated kaolin powder compound is prepared by heating natural kaolin to 480.degree. C. within at most one hour, calcinating the heated kaolin at high temperature by heating to 980.degree. C. over at least one hour, quenching the calcinated kaolin with water or air, and pulverizing the quenched kaolin to give particle sizes of 2 .mu.m or less. The activated kaolin powder compound is employed in an amount of about 5 to 15% by weight of cement for preparing mortar or cement. The cement composition containing the activated kaolin powder compound can provide a mortar or concrete having superior properties in compressive strength, flexural strength and water permeability.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: November 2, 1999
    Assignees: Moon Han Kim, Jeong Hwan Kwak
    Inventors: Moon Han Kim, Hey Zoo Hwang, Jung Ha Hwang, Hee Sung Cha, Kwang Choon Kim, Jong Kuk Lee