Patents by Inventor Jean L. Larguier

Jean L. Larguier 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).

  • Process for manufacturing capacitive keyboards and new keyboards obtained by this process
    Patent number: 4743464
    Abstract: According to the process, there is applied to one face of a relatively rigid isolating support (1) a first matrix arrangement of areas (3) connected by conductor tracks of lines (4). Said arrangement is coated with a thin layer of isolating lacquer (5) and a second matrix arrangement of areas (6) is set in place on the lacquer layer with their conductor tracks of columns (7) to obtain, by bringing together an armature towards each stud comprised of two areas (3, 6), a capacitive connection.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: May 10, 1988
    Inventors: Jean L. Larguier, Daniel Duchalet