Patents by Inventor Shouqi Wang

Shouqi 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).

  • Langasite single crystal ingot, substrate for piezoelectric device and method for manufacture thereof, and surface acoustic wave device
    Patent number: 7090724
    Abstract: The contents by weight ratio of lanthanum oxide, gallium oxide, and silicon oxide, which are components, in the longitudinal cross-section and transverse cross-section of the straight part, excluding the shoulder part, of a Langasite single crystal ingot grown by pulling-up Langasite is within a range of ±0.05% with respect to the target amounts at all measured locations, and because of having a superior homogeneity in the content of components over the entire ingot, when used, for example, in a piezoelectric device such as an surface acoustic wave filter, has properties for industrial application that contribute to the stabilization of characteristics as well as reducing the costs.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 15, 2006
    Assignee: Mitsubishi Materials Corporation
    Inventors: Shouqi Wang, Satoshi Uda
  • Langasite single crystal ingot, substrate for piezoelectric device and method for manufacture thereof, and surface coustic wave device
    Publication number: 20040137727
    Abstract: The contents by weight ratio of lanthanum oxide, gallium oxide, and silicon oxide, which are components, in the longitudinal cross-section and transverse cross-section of the straight part, excluding the shoulder part, of a Langasite single crystal ingot grown by pulling-up Langasite is within a range of ±0.05% with respect to the target amounts at all measured locations, and because of having a superior homogeneity in the content of components over the entire ingot, when used, for example, in a piezoelectric device such as an surface acoustic wave filter, has properties for industrial application that contribute to the stabilization of characteristics as well as reducing the costs.
    Type: Application
    Filed: August 11, 2003
    Publication date: July 15, 2004
    Inventors: Shouqi Wang, Satoshi Uda