Patents by Inventor Dana S. Bailey

Dana S. Bailey 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).

  • Temperature compensated orientations of berlinite for surface acoustic wave devices
    Patent number: 4525643
    Abstract: A piezoelectric wafer of single crystal berlinite, having a surface defined by an X-axis boule cut at an angle in the range from about 94.degree.-104.degree., provides an improved substrate for a surface acoustic wave device. These cut angles are relatively easy to fabricate, provide excellent temperature compensation in a range from -55.degree. C. to 125.degree. C., and have high piezoelectric coupling coefficient.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: June 25, 1985
    Assignee: Allied Corporation
    Inventors: Bruce H. Chai, Dana S. Bailey, John F. Vetelino, Donald L. Lee, Jeffrey C. Andle
  • Temperature compensated orientation of berlinite for surface acoustic wave devices
    Patent number: 4511817
    Abstract: A piezoelectric wafer of single crystal berlinite, having a surface defined by an X-axis boule cut at about 85.degree., provides a improved substrate for a surface acoustic wave device. The 85.degree. cut angle is relatively easy to fabricate, provides excellent temperature compensation in a range form 20.degree. C. to 100.degree. C., and has high piezoelectric coupling coefficient.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: April 16, 1985
    Assignee: Allied Corporation
    Inventors: Bruce H. Chai, Dana S. Bailey, John F. Vetelino, Donald L. Lee, Jeffrey C. Andle