Patents by Inventor Philippe Raulin

Philippe Raulin 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).

  • Method of manufacturing a magnetic transducer including a plurality of heads
    Patent number: 4811476
    Abstract: A method for manufacturing a magnetic transducer including a plurality of heads. This method comprises placing p magnetic cores (such as 17-4) on a support plate (20), each core being provided with a winding (such as E4) extending over the entire length of the core, coating these cores within an insulating film (25), removing the turns located at the ends of each core, and connecting the turns (29, 30) located at the ends of the remaining turns to contact zones (37c, P-1, P-2, etc.). The method applies to the manufacture of transducers with which magnetic printing machines are equipped.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: March 14, 1989
    Assignee: Bull, S.A.
    Inventors: Philippe Raulin, Jean-Pierre Messer, Bernard Cherbuy, Jacques Estavoyer