Patents by Inventor Olivier Acher

Olivier Acher 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).

  • Anisotropic microwave composite
    Patent number: 5726655
    Abstract: The composite according to the invention comprises a stack of alternately ferromagnetic and insulating, thin layers (12, 14) receiving on their edge the electromagnetic field to be transformed.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: March 10, 1998
    Assignee: Commissariat A L'Energe Atomique
    Inventors: Olivier Acher, Jean-Luc Vermeulen, Jean-Marie Fontaine
  • Process for determining intrinsic magnetic permeability of elongated ferromagnetic elements and electromagnetic properties of composites using such elements
    Patent number: 5691645
    Abstract: A process for determining the intrinsic magnetic permeability of elongated ferromagnetic elements and the electromagnetic properties of composites using such elements are disclosed. According to the process, an annular core or torus is produced, which torus is wound with ferromagnetic elements. The core is placed in a coaxial line, the properties of the torus are measured, and permeability of the elements and the properties of an equivalent composite for a given polarization are deduced from such measurement. Particular utility is found in the area of study of composite charges for use at microwave frequencies.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: November 25, 1997
    Assignee: Commissariat a L'Energie Atomique
    Inventors: Olivier Acher, Pierre Marie Jacquart, Alfred Schaal