Patents by Inventor Alessandra Pistagna

Alessandra Pistagna 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).

  • Ink for thermal ink jet printing with high performance at high ejection frequencies
    Patent number: 7160373
    Abstract: This invention relates to a water-based ink for ink-jet thermal printing containing a surface-active agent having, at a certain concentration, a slow dynamic rearrangement. This surfactant system gives the ink a high surface tension under dynamic conditions which grants greater droplet ejection frequencies with respect to the inks usually employed. At the same time, the ink's low static surface tension value means that it has correct paper wettability properties.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: January 9, 2007
    Assignee: Telecom Italia S.p.A.
    Inventors: Alessandra Pistagna, Luigina Gino
  • Ink for thermal ink jet printing with high performance at high ejection frequencies
    Publication number: 20050204954
    Abstract: This invention relates to a water-based ink for ink-jet thermal printing containing a surface-active agent having, at a certain concentration, a slow dynamic rearrangement. This surfactant system gives the ink a high surface tension under dynamic conditions which grants greater droplet ejection frequencies with respect to the inks usually employed. At the same time, the ink's low static surface tension value means that it has correct paper wettability properties.
    Type: Application
    Filed: May 16, 2005
    Publication date: September 22, 2005
    Applicant: OLIVETTI TECNOST S.p.A.
    Inventors: Alessandra Pistagna, Luigina Gino
  • Ink for thermal ink jet printing with high performance at high ejection frequencies
    Patent number: 6926766
    Abstract: This invention relates to a water-based ink for ink-jet thermal printing containing a surface-active agent having, at a certain concentration, a slow dynamic rearrangement. This surfactant system gives the ink a high surface tension under dynamic conditions which grants greater droplet ejection frequencies with respect to the inks usually employed. At the same time, the ink's low static surface tension value means that it has correct paper wettability properties.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 9, 2005
    Assignee: Olivetti Technost S.p.A.
    Inventors: Alessandra Pistagna, Luigina Gino
  • Ink for thermal ink jet printing with high performance at high ejection frequencies
    Publication number: 20040046846
    Abstract: This invention relates to a water-based ink for ink-jet thermal printing containing a surface-active agent having, at a certain concentration, a slow dynamic rearrangement. This surfactant system gives the ink a high surface tension under dynamic conditions which grants greater droplet ejection frequencies with respect to the inks usually employed. At the same time, the ink's low static surface tension value means that it has correct paper wettability properties.
    Type: Application
    Filed: June 19, 2003
    Publication date: March 11, 2004
    Inventors: Alessandra Pistagna, Gino Luigina