Patents by Inventor Nicolae Barsan

Nicolae Barsan 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).

  • Publication number: 20200393431
    Abstract: A highly stable gas sensor capable of detecting carbon dioxide is provided. A carbon dioxide gas sensor includes an insulating substrate and a gas sensing layer formed on one major surface of the insulating substrate via electrodes, in which the gas sensing layer comprises one or more rare earth oxides represented by Ln2O3, Ln being at least one rare earth metal element selected from Sc, Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Pr, Yb and Lu, and a method for producing the gas sensor are provided.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 17, 2020
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Takuya SUZUKI, Nicolae BARSAN, Udo WEIMAR
  • Patent number: 9091669
    Abstract: A gas sensor is used for detecting gas in the air, especially formaldehyde. The sensor comprises at least one gas-sensitive zone which is preferably a layer on a substrate and which contains the ternary compound In4Sn3O12 as the gas-sensitive material. In order to produce the gas-sensitive zone, a flame spray pyrolysis (FSP) is carried out, organometallic compounds of indium and tin being used as the reactants. The gas sensor is especially suitable for online gas detection.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 28, 2015
    Assignees: Eberghard Karls Universitat Tubingen, Universitat Breman
    Inventors: Nicolae Barsan, Udo Weimar, Jens Kemmler, Lutz Maedler, Suman Pokhrel
  • Publication number: 20130111974
    Abstract: The invention relates to a gas sensor for detecting gas in the air, especially formaldehyde. The sensor comprises at least one gas-sensitive zone which is preferably a layer on a substrate and which contains the ternary compound In4Sn3O12 as the gas-sensitive material. In order to produce the gas-sensitive zone, a flame spray pyrolysis (FSP) is carried out, organometallic compounds of indium and tin being used as the reactants. The gas sensor is especially suitable for online gas detection.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 9, 2013
    Applicants: UNIVERSITÄT BREMEN, EBERHARD KARLS UNIVERSITÄT TÜBINGEN
    Inventors: Nicolae Barsan, Udo Weimar, Jens Kemmler, Lutz Maedler, Suman Pokhrel
  • Publication number: 20130017471
    Abstract: To reduce degradation of a solid polymer fuel cell during startup and shutdown, a selectively conducting component is incorporated in electrical series with the anode components in the fuel cell. The component is characterized by a low electrical resistance in the presence of hydrogen or fuel and a high resistance in the presence of air. High cathode potentials can be prevented by integrating such a component into the fuel cell. A suitable selectively conducting component can comprise a layer of selectively conducting material, such as a metal oxide.
    Type: Application
    Filed: December 22, 2010
    Publication date: January 17, 2013
    Applicants: FORD MOTOR COMPANY, DAIMLER AG
    Inventors: Herwig Haas, Joy Roberts, Francine Berretta, Amy Shun-Wen Yang, Yvonne Hsieh, Guy Pepin, Andrew Leow, Richard Fellows, Nicolae Barsan
  • Publication number: 20120094030
    Abstract: Method of producing a gas sensor includes positioning a sensor substrate in a flame spray pyrolysis apparatus, generating an aerosol phase with sensing material nanoparticles by flame spray pyrolysis of a precursor substance, depositing the sensing material particles contained in the aerosol, in particular nanoparticles of the sensing material, onto the sensor substrate directly from the aerosol phase to form a porous sensing layer on the sensor substrate.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventors: Lutz Maedler, Sotiris Pratsinis, Albert Roessler, Udo Weimar, Nicolae Barsan, Aleksander Gurlo
  • Patent number: 7725268
    Abstract: Method and sensing module for sensing pollution of outside air. The sensing module (1) comprises an electro chemical sensing element (3), and a processor (2). A sensing module output signal is provided based on the measurement signal and a baseline signal level. The baseline signal level is adapted depending on two threshold levels (13-15). A pollution concentration value is determined from the measurement signal and a classification level of air pollution is provided as sensing module output signal. A classification level is determined using a plurality of classification threshold values and the pollution concentration values. The plurality of classification threshold values are dynamically adjustable.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: May 25, 2010
    Assignee: Sensata Technologies Holland B.V.
    Inventors: Roger Marcel Appelo, Tom Urban Artursson, Per Anders Holmberg, Nicolae Barsan, Heiko Eugen Ulmer
  • Publication number: 20090291024
    Abstract: The invention relates to a method of producing a gas sensor comprising the steps of a. Positioning a sensor substrate (7) in a flame spray pyrolysis apparatus (1); b. Generating an aerosol phase comprising sensing material nanoparticles by flame spray pyrolysis (FSP) of a precursor substance; c. Depositing the sensing material particles contained in the aerosol, in particular nanoparticles of the sensing material, onto the sensor substrate (7) directly from the aerosol phase to form a porous sensing layer (15).
    Type: Application
    Filed: November 25, 2005
    Publication date: November 26, 2009
    Inventors: Lutz Maedler, Sotiris Pratsinis, Albert Roessler, Udo Weimar, Nicolae Barsan, Aleksander Gurlo
  • Publication number: 20080051021
    Abstract: Method and sensing module for sensing pollution of outside air. The sensing module (1) comprises an electro chemical sensing element (3), and a processor (2). A sensing module output signal is provided based on the measurement signal and a baseline signal level. The baseline signal level is adapted depending on two threshold levels (13-15). A pollution concentration value is determined from the measurement signal and a classification level of air pollution is provided as sensing module output signal. A classification level is determined using a plurality of classification threshold values and the pollution concentration values. The plurality of classification threshold values are dynamically adjustable.
    Type: Application
    Filed: November 25, 2004
    Publication date: February 28, 2008
    Inventors: Roger Appelo, Tom Artursson, Per Holmberg, Nicolae Barsan, Heiko Ulmer