Patents by Inventor Zhen-Yan Deng

Zhen-Yan Deng 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).

  • Porous alumina fabrication procedures
    Patent number: 6565825
    Abstract: This invention relates to a method of producing an alumina porous material using a mixed powder of alumina powder and aluminum hydroxide represented by the chemical formula Al(OH)3 at different percentages as the starting material, comprising the steps of heating this mixed powder to decompose the aluminum hydroxide and further heat treating it within a temperature range of 1,000 to 1,600° C., and to the alumina porous material produced by the above-mentioned method with a porosity exceeding 40 volume % and its specific surface area of 8 to 40 m2/g, and further to a filter and catalyst carrier that are obtained using this alumina porous material.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: May 20, 2003
    Assignee: Japan as represented by Secretary of Agency of Industrial Science and Technology
    Inventors: Tatsuki Ohji, Zhen-Yan Deng
  • Porous alumina and its fabrication procedures
    Publication number: 20020043734
    Abstract: This invention relates to a method of producing an alumina porous material using a mixed powder of alumina powder and aluminum hydroxide represented by the chemical formula Al(OH)3 at different percentages as the starting material, comprising the steps of heating this mixed powder to decompose the aluminum hydroxide and further heat treating it within a temperature range of 1,000 to 1,600° C., and to the alumina porous material produced by the above-mentioned method with a porosity exceeding 40 volume % and its specific surface area of 8 to 40 m2/g, and further to a filter and catalyst carrier that are obtained using this alumina porous material.
    Type: Application
    Filed: December 27, 2000
    Publication date: April 18, 2002
    Inventors: Tatsuki Ohji, Zhen-Yan Deng