Patents by Inventor Corine Despax

Corine Despax 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).

  • Magneto-optical recording medium, manufacturing method thereof and magneto-optical data recording and playback device
    Patent number: 7368146
    Abstract: A magneto-optical recording medium has a recording layer and a reflective layer on a substrate. The recording layer has a layered structure in which at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled together. It is preferable that the layered structure is formed on tracks where data are recorded. A manufacturing method comprises the steps of heat treatment in the range of 500-700° C., preferably 600-630° C., after the formation of the recording layer. In the magneto-optical recording and playback device to record and play back data, the wavelength of light for recording data is different from that for reading data, which is preferable for a magneto-optical recording medium comprising a garnet ferrite layer.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: May 6, 2008
    Assignees: Nippon Telegraph and Telephone Corporation, The Centre National de la Recherche Scientifique
    Inventors: Akinori Furuya, Hiroshi Yoshikawa, Takaya Tanabe, Manabu Yamamoto, Toshifumi Ohkubo, Laurence Bouet, Philippe Tailhades, Corine Despax, Abel Rousset
  • Magneto-optical recording medium, manufacturing method thereof and magneto-optical data recording and playback device
    Publication number: 20060286411
    Abstract: This invention relates to magneto-optical recording media such as magneto-optical disks and cards, manufacturing methods of the medium and a magneto-optical recording and playback device to record and play back data using the magneto-optical recording media. The magneto-optical recording medium of the present invention has a recording layer and a reflective layer on a substrate, and the recording layer has a layered structure in which at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled together. It is preferable that the layered structure is formed on tracks where data are recorded. The manufacturing method of the present invention comprises the steps of heat treatment in the range of 500-700° C., preferably 600-630° C., after the formation of the recording layer.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 21, 2006
    Inventors: Akinori Furuya, Hiroshi Yoshikawa, Takaya Tanabe, Manabu Yamamoto, Toshifumi Ohkubo, Laurence Bouet, Philippe Tailhades, Corine Despax-Bonningue, Abel Rousset
  • Magneto-optical recording medium, manufacturing method thereof and magneto-optical data recording and playback device
    Publication number: 20040197604
    Abstract: This invention relates to magneto-optical recording media such as magneto-optical disks and cards, manufacturing methods of the medium and a magneto-optical recording and playback device to record and play back data using the magnetic-optical recording media. The magneto-optical recording medium has a recording layer and a reflective layer on a substrate, and the recording layer has a layered structure in which at least on spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled together. The manufacturing method comprises the steps of heat treatment after the formation of the recording layer. In the magneto-optical recording and playback device to record and playback data, the wavelength of light for recording data is different from that for reading data, which is preferable for a magneto-optical recording medium comprising a garnet ferrite layer.
    Type: Application
    Filed: September 22, 2003
    Publication date: October 7, 2004
    Inventors: Akinori Furuya, Hiroshi Yoshikawa, Takaya Tanabe, Manabu Yamamoto, Toshifumi Ohkubo, Laurence Bouet, Philippe Tailhades, Corine Despax-Bonningue, Abel Rousset
  • Opto-magnetic recording medium with a garnet ferrite recording layer, and opto-magnetic information recording/reproducing device
    Patent number: 6759137
    Abstract: This invention relates to magneto-optical recording media such as magneto-optical disks and cards, manufacturing methods of the medium and a magneto-optical recording and playback device to record and play back data using the magneto-optical recording media. The magneto-optical recording medium of the present invention has a recording layer and a reflective layer on a substrate, and the recording layer has a layered structure in which at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled together. It is preferable that the layered structure is formed on tracks where data are recorded. The manufacturing method of the present invention comprises the steps of heat treatment in the range of 500-700° C., preferably 600-630° C., after the formation of the recording layer.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: July 6, 2004
    Assignee: Centre National de la Recherche Scientifique, Inc.
    Inventors: Akinori Furuya, Hiroshi Yoshikawa, Takaya Tanabe, Manabu Yamamoto, Toshifumi Ohkubo, Laurence Bouet, Philippe Tailhades, Corine Despax, Abel Rousset