Patents by Inventor Joseph Loiseau

Joseph Loiseau 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).

  • Cooled photodetector
    Patent number: 7253396
    Abstract: Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and the screen. The table (50) and the screen (80) are cooled by convection, the table (50) being provided with apertures (55) for passage of the cooling flow, which communicate with an annular cavity (63) for cooling of the screen (80).
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: August 7, 2007
    Assignee: Sagem SA
    Inventor: Joseph Loiseau
  • Cooled photodetector
    Publication number: 20050218316
    Abstract: Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and the screen. The table (50) and the screen (80) are cooled by convection, the table (50) being provided with apertures (55) for passage of the cooling flow, which communicate with an annular cavity (63) for cooling of the screen (80).
    Type: Application
    Filed: December 23, 2002
    Publication date: October 6, 2005
    Applicant: SAGEM SA
    Inventor: Joseph Loiseau