Patents by Inventor Jeffrey A. Wallhoff

Jeffrey A. Wallhoff 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).

  • Optical path for a thermal-assisted magnetic recording head
    Patent number: 7944647
    Abstract: An optical path or waveguide for a laser-assisted transducing head is disclosed. The optical path extends between the poles of the transducing head to near the write gap. A solid-state laser is attached to or incorporated into the slider or head and is positioned to direct thermal energy through a waveguide and onto a track of a read/write surface to lower the coercivity of the recording medium to facilitate the write process.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: May 17, 2011
    Assignee: Advanced Research Corporation
    Inventors: Matthew P. Dugas, Jeffrey A. Wallhoff
  • Optical Path for a Thermal-Assisted Magnetic Recording Head
    Publication number: 20100002332
    Abstract: An optical path or waveguide for a laser-assisted transducing head is disclosed. The optical path extends between the poles of the transducing head to near the write gap. A solid-state laser is attached to or incorporated into the slider or head and is positioned to direct thermal energy through a waveguide and onto a track of a read/write surface to lower the coercivity of the recording medium to facilitate the write process.
    Type: Application
    Filed: May 11, 2009
    Publication date: January 7, 2010
    Inventors: Matthew P. Dugas, Jeffrey A. Wallhoff
  • Optical path for a thermal-assisted magnetic recording head
    Patent number: 7532435
    Abstract: An optical path or waveguide for a laser-assisted transducing head is disclosed. The optical path extends between the poles of the transducing head to near the write gap. A solid-state laser is attached to or incorporated into the slider or head and is positioned to direct thermal energy through a waveguide and onto a track of a read/write surface to lower the coercivity of the recording medium to facilitate the write process.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: May 12, 2009
    Assignee: Advanced Research Corporation
    Inventors: Matthew P. Dugas, Jeffrey A. Wallhoff
  • Optical path for a thermal-assisted magnetic recording head
    Patent number: 6996033
    Abstract: An optical path or waveguide for a laser-assisted transducing head is disclosed. The optical path extends between the poles of the transducing head to near the write gap. A solid-state laser is attached to or incorporated into the slider or head and is positioned to direct thermal energy through a waveguide and onto a track of a read/write surface to lower the coercivity of the recording medium to facilitate the write process.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: February 7, 2006
    Assignee: Advanced Research Corporation
    Inventors: Matthew P. Dugas, Jeffrey A. Wallhoff
  • Optical path for a thermal-assisted magnetic recording head
    Publication number: 20040120064
    Abstract: An optical path or waveguide for a laser-assisted transducing head is disclosed. The optical path extends between the poles of the transducing head to near the write gap. A solid-state laser is attached to or incorporated into the slider or head and is positioned to direct thermal energy through a waveguide and onto a track of a read/write surface to lower the coercivity of the recording medium to facilitate the write process.
    Type: Application
    Filed: June 19, 2003
    Publication date: June 24, 2004
    Inventors: Matthew P. Dugas, Jeffrey A. Wallhoff