Patents by Inventor Haihong Qiu

Haihong Qiu 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).

  • Electronic device including langasite structure compound and method for making such devices
    Patent number: 6455986
    Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14 wherein A is strontium, B is niobium, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: September 24, 2002
    Assignee: Crystal Photonics, Incorporated
    Inventors: Bruce H. T. Chai, Mitch M. C. Chou, Haihong Qiu, Shen Jen
  • Electronic device including langasite structure compounds and method for making same
    Patent number: 6424081
    Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is niobium or tantalum, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: July 23, 2002
    Assignee: Crystal Photonics, Incorporated
    Inventors: Bruce H. T. Chai, Mitch M. C. Chou, Haihong Qiu, Shen Jen
  • Electronic device including langasite structure compounds and method for making same
    Publication number: 20020027397
    Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is niobium or tantalum, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
    Type: Application
    Filed: May 3, 2001
    Publication date: March 7, 2002
    Applicant: Crystal Photonics, Incorporated
    Inventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen
  • Electronic filter including langasite structure compound and method for making same
    Publication number: 20020021193
    Abstract: An electronic filter includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is strontium, B is tantalum, C is gallium, D is silicon, and E is oxygen. A plurality of pairs of electrodes are connected to and cooperate with the piezoelectric layer to define a SAW or BAW filter, for example. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
    Type: Application
    Filed: May 3, 2001
    Publication date: February 21, 2002
    Applicant: Crystal Photonics, Incorporated
    Inventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen
  • Electronic device including langasite structure compound and method for making such devices
    Publication number: 20020015452
    Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14 wherein A is strontium, B is niobium, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
    Type: Application
    Filed: May 3, 2001
    Publication date: February 7, 2002
    Applicant: Crystal Photonics, Incorporated
    Inventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen