Patents by Inventor Arpád Barna

Arpád Barna 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).

  • Patent number: 7224566
    Abstract: Electronic systems are described including semiconductor circuitry characterized by first signals and all-metal circuitry characterized by second signals and comprising a plurality of transpinnors. Each transpinnor includes a network of thin-film elements. At least one thin-film element in each transpinnor exhibits giant magnetoresistance. Each transpinnor includes a conductor inductively coupled to the at least one thin-film element for controlling operation of the transpinnor. Interface circuitry connects the semiconductor circuitry to the all-metal circuitry and converts between the first signals and the second signals.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: May 29, 2007
    Assignee: Integrated Magnetoelectronics Corporation
    Inventors: David Green Baskin, legal representative, Stephen J. Nuspl, Richard Spitzer, E. James Torok, Edward Wuori, Arpad Barna, deceased
  • Publication number: 20040075152
    Abstract: Electronic systems are described including semiconductor circuitry characterized by first signals and all-metal circuitry characterized by second signals and comprising a plurality of transpinnors. Each transpinnor includes a network of thin-film elements. At least one thin-film element in each transpinnor exhibits giant magnetoresistance. Each transpinnor includes a conductor inductively coupled to the at least one thin-film element for controlling operation of the transpinnor. Interface circuitry connects the semiconductor circuitry to the all-metal circuitry and converts between the first signals and the second signals.
    Type: Application
    Filed: April 17, 2003
    Publication date: April 22, 2004
    Applicant: Integrated Magnetoelectronics Corporation
    Inventors: Arpad Barna, Stephen J. Nuspl, Richard Spitzer, E. James Torok, Edward Wuori
  • Patent number: 6236054
    Abstract: An ion source for generating ions of a gas or vapor, especially for thinning solid state samples, includes a housing, an arrangement for introducing the gas or vapor into the housing and an anode positioned within the housing. The anode has a rotationally symmetrical cavity which is open at both sides along the axis of the source. First and second electrooptical mirrors are disposed along the source axis and define therebetween a space in which the anode is positioned The mirrors produce an electrostatic field to cause electrons to oscillate between them. At least one of the mirrors is apertured for exit therethrough of a fraction of ions generated in the space. An electron generating arrangement is disposed at one side of the cavity externally of the space between the mirrors and further, an arrangement causes the electrons to move into the cavity.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: May 22, 2001
    Inventors: Arpád Barna, Dezsö Szigethy
  • Patent number: 4739463
    Abstract: The invention relates to a stabilized high voltage source the output voltage of which may be regulated in wide range, whereby the adjusted output current is constant at variable load. The high voltage supply source comprises a high voltage rectifier fed by a push-pull driving circuit, a control circuit supplying push-pull width modulated control signals of the driving circuit and an error signal processing circuit working up the divided voltage and current signals taken from the output of the high voltage source. The output signal of the error signal processing circuit is applied to the control circuit as a control signal. The supply voltage of auxiliary circuits of the supply source is provided by a stabilized low voltage supply unit.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: April 19, 1988
    Assignee: MTA Muszaki Fizikai Kutato Intezete
    Inventors: Arpad Barna, Istvan Bodi