Patents by Inventor Daniel Stubbs

Daniel Stubbs 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).

  • Publication number: 20070154674
    Abstract: The invention is directed to a recordable optical data storage medium that includes a thermal buffer layer formed between a substrate and a recording dye layer of the recordable optical data storage medium. In addition, multi-recording-layer optical media are described, which incorporate such thermal buffer layers between a recording dye and a substrate, and also between another recording dye layer and a spacer layer. In accordance with the invention, the thermal buffer layer or layers comprise a silicon-oxi-nitride (SiOXN(2/3)(2-X)), wherein X is between approximately 0.1 and 1.9.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: Stanley Busman, Daniel Stubbs, Richard Willson
  • Publication number: 20060273419
    Abstract: The invention is directed to a magnetic field sensing device (FSD) capable of visually indicating exposure to a magnetic field with a strength that exceeds a threshold value. The magnetic FSD comprises a magnetic layer magnetized to define a pattern. The threshold value is approximately equal to a coercivity of the magnetic layer of the FSD, which is at least approximately 3000 Oersteds. The pattern becomes visible when a finely divided magnetic material is applied over the magnetic layer. Then, when the FSD is exposed to a magnetic field with a strength that exceeds the threshold, the pattern visibly alters (e.g., typically disappears altogether). Accordingly, upon re-application of the finely divided magnetic material, the alteration of the pattern is evidence of successful degaussing.
    Type: Application
    Filed: April 28, 2006
    Publication date: December 7, 2006
    Inventors: Steven Lindblom, Michael Hintz, Richard Jewett, Kellan Pauly, Dean Sitz, Daniel Stubbs
  • Publication number: 20060273785
    Abstract: The invention is directed to a magnetic field sensing device (FSD) capable of visually indicating exposure to a magnetic field with a strength that exceeds a threshold value. The magnetic FSD comprises a magnetic layer magnetized in a pattern and a material positioned adjacent the magnetic layer to render the pattern visible. When the FSD is exposed to a magnetic field with a strength that exceeds the threshold, the pattern visibly alters. The threshold value is approximately equal to a coercivity of the magnetic layer of the FSD, which is at least approximately 3000 Oersteds.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 7, 2006
    Inventors: Steven Lindblom, Michael Hintz, Richard Jewett, Kellan Pauly, Dean Sitz, Daniel Stubbs
  • Publication number: 20050134986
    Abstract: In general, the invention provides two-sided magnetic data storage tape comprising azimuthal magnetic transition layouts that can substantially reduce demagnetization of recorded magnetic transitions on the surfaces of the tape. The invention specifically balances the goal of simplified media manufacture with the goal of reducing or avoiding media degradation when the tape is spooled. The two-sided magnetic data storage tape defines a substantially similar easy axis of magnetic anisotropy on a first and a second side of the tape, which can simplify media manufacture. Recorded magnetic transitions on the opposing sides of the tape define azimuths that are substantially different, which can help avoid media degradation when the tape is spooled.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Daniel Stubbs, Yung Yip