Patents by Inventor Yohai Y. Dayagi

Yohai Y. Dayagi 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).

  • Sensitive and selective method and device for the detection of trace amounts of a substance
    Patent number: 7795008
    Abstract: A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of a inverted mesa structure, which has a membrane-like region and has a certain resonance frequency value. A surface region of the crystal resonator is modified by reactive molecules of a kind capable of interacting with the foreign material to yield a reaction product that effects a change in the resonance frequency of the crystal resonator from said certain resonance frequency value. This change is indicative of the identity and quantity of the foreign material.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 14, 2010
    Assignee: M.S. Tech Ltd.
    Inventors: Yohai Y. Dayagi, Lev Dayan, Moshe Shalom
  • Sensitive and selective method and device for the detection of trace amounts of a substance
    Patent number: 7159463
    Abstract: A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of an inverted mesa structure, which has a membrane-like region and has a certain resonance frequency value. A surface region of the crystal resonator is modified by reactive molecules of a kind capable of interacting with the foreign material to yield a reaction product that effects a change in the resonance frequency of the crystal resonator from said certain resonance frequency value. This change is indicative of the identity and quantity of the foreign material.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 9, 2007
    Assignee: M.S. Tech Ltd.
    Inventors: Yohai Y. Dayagi, Lev Dayan, Moshe Shalom
  • Sensitive and selective method and device for the detection of trace amounts of a substance
    Publication number: 20040194548
    Abstract: A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of an inverted mesa structure, which has a membrane-like region and has a certain resonance frequency value. A surface region of the crystal resonator is modified by reactive molecules of a kind capable of interacting with the foreign material to yield a reaction product that effects a change in the resonance frequency of the crystal resonator from said certain resonance frequency value. This change is indicative of the identity and quantity of the foreign material.
    Type: Application
    Filed: March 17, 2004
    Publication date: October 7, 2004
    Inventors: Yohai Y Dayagi, Lev Dayan, Moshe Shalom
  • Sensitive and selective method and device for the detection of trace amounts of a substance
    Patent number: 6526828
    Abstract: A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of an inverted mesa structure, which has a membrane-like region and is characterized by a certain resonance frequency value. A surface region of the crystal resonator is modified by reactive molecules of a kind capable of interacting with the foreign material to yield a reaction product that effects a change in the resonance frequency of the crystal resonator from said certain resonance frequency value. This change is indicative of the identity and quantity of the foreign material.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: March 4, 2003
    Assignee: M.S. Tech Ltd.
    Inventors: Lev Dayan, Yohai Y. Dayagi, Moshe Shalom