Patents by Inventor Yongli Wang

Yongli Wang 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).

  • Piezo-Electric Ceramic Composition, Method for Producing the Composition, and Electric Component Comprising the Composition
    Publication number: 20120187325
    Abstract: A piezoelectric ceramic composition comprising: a matrix material comprising at least two matrix components having a perovskite structure or consisting of said matrix components; a first matrix component being selected from (Bi0.5A0.5)EO3 and BaEO3; and a further matrix component being Bi(Me0.5E0.5)O3, wherein A is selected from an alkali metal, particularly sodium or potassium, or a mixture of alkali metals; wherein E is independently selected from titanium, zirconium and mixtures of titanium and zirconium; and wherein Me is selected from bivalent metals.
    Type: Application
    Filed: July 29, 2010
    Publication date: July 26, 2012
    Inventors: Christian Hoffmann, Alain Kounga Njiwa, Yongli Wang
  • Ceramic Material, Method for Producing said Ceramic Material and Component Comprising said Ceramic Material
    Publication number: 20120098386
    Abstract: The invention relates to a ceramic material of the formula [(Bi0.5Na0.5TiO3)(1-y)(BaTiO3)y](1-x)(K0.5Na0.5NbO3)x, and also to a method for producing the same and to a component comprising said material.
    Type: Application
    Filed: November 6, 2009
    Publication date: April 26, 2012
    Applicant: Epcos AG
    Inventors: Alain Brice Kounga Njiwa, Yongli Wang, Irmgard Penzinger