Patents by Inventor Michel Ayel

Michel Ayel 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).

  • Connection lugs in the form of a comb for power transistors
    Patent number: 4013337
    Abstract: A connection lug comb configuration for power semiconductor devices wherein bent lugs are drawn toward the semiconductor body resting on a heat sink base by pins having heads that engage slots in the lugs.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: March 22, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Bernard Roger, Michel Ayel, Francis Debar
  • Method of producing single crystals of semiconductor material by floating-zone melting
    Patent number: 3935059
    Abstract: In a floating-zone melting process for producing single crystals of a semi-conductor material from a semi-conductor rod and a seed crystal, the rod is heated by high-frequency induction from an inductance coil which is spaced from a short-circuited annular conductor. The spacing between the inductance coil and the short-circuited conductor is varied during passage of the molten zone to correspond with variations in the diameter of the growing crystal.
    Type: Grant
    Filed: June 28, 1972
    Date of Patent: January 27, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Michel Ayel