Patents by Inventor Bernard Rodmacq

Bernard Rodmacq 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).

  • Three-layered stacked magnetic spin polarization device with memory
    Patent number: 6603677
    Abstract: A magnetic device including at least a memory cell having a first magnetic layer with a fixed magnetization direction. The first magnetic layer spin polarizes a writing current of electrons. The memory cell includes a second magnetic layer having a three-layered stack with a variable magnetization direction. An insulating or semi-conduction layer is formed between the first and second magnetic layers. The variable magnetization direction is oriented by spins of a spin polarized writing current. The three-layered stack includes two magnetic layers separated by a non-magnetic conducting layer. The first magnetic layer aligns the variable magnetization direction with the fixed magnetization direction by directing an incident writing current of electrons perpendicular through the first magnetic layer and then perpendicular through the second magnetic layer.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 5, 2003
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Olivier Redon, Bernard Dieny, Bernard Rodmacq
  • Magnetic spin polarization and magnetization rotation device with memory and writing process, using such a device
    Patent number: 6532164
    Abstract: A magnetic spin polarizing a magnetization rotation device with a memory and a writing process using such a device. The device is configured to include an apparatus for polarizing the spin of electrons, including a magnetic layer having magnetization perpendicular to the plane of magnetization of respective first and second magnetic layers. The magnetization of the second magnetic layer rotates within a plane, which is either the plane of the layer or a perpendicular plane.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: March 11, 2003
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Olivier Redon, Bernard Dieny, Bernard Rodmacq
  • Magnetic spin polarisation and magnetisation rotation device with memory and writing process, using such a device
    Publication number: 20020105823
    Abstract: Magnetic spin polarising and magnetisation rotation device with memory and writing process, using such a device.
    Type: Application
    Filed: November 23, 2001
    Publication date: August 8, 2002
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Olivier Redon, Bernard Dieny, Bernard Rodmacq
  • Three-layered stacked magnetic spin polarisation device with memory, using such a device
    Publication number: 20020105827
    Abstract: Three-layered stacked magnetic spin polarisation device with memory, using such a device.
    Type: Application
    Filed: November 20, 2001
    Publication date: August 8, 2002
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Olivier Redon, Bernard Dieny, Bernard Rodmacq
  • Multilayer magnetic transducer and structure having a high magnetoresistance and process for the production of the structure
    Patent number: 6165329
    Abstract: Multilayer magnetic transducer and structure and process for the production of the structure. The magnetic structure only has one stack of layers of a magnetic material separated by layers of a non-magnetic metallic material having a thickness such that there is an anti-ferromagnetic coupling between the magnetic layers, the magnetic material being chosen from among the alloys FeNi, FeNiCo, and NiCo and the non-magnetic material is silver.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: December 26, 2000
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Bernard Rodmacq, Andre Pierrot, Philippe Gerard, Jean Mouchot