Patents by Inventor Ramon Hegel

Ramon Hegel 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: 20060072445
    Abstract: An optical disc comprising a transparent substrate, an information recording layer, said optical disc comprising a read/write surface and an opposing surface, at least one surface of said disc comprising a surface coating, wherein said at least one surface of said disc shows a change of reflectivity after 100 taber abrasion cycles of no more than 20%, a resistivity no greater than about 9—1013 ohms/square, and a static decay of less than about 0.5 seconds when tested at about 20° C. and 50% relative humidity.
    Type: Application
    Filed: September 28, 2004
    Publication date: April 6, 2006
    Inventor: Ramon Hegel
  • Publication number: 20050214682
    Abstract: Holographic data storage media having a sandwiched construction are described in which a holographic recording material is sandwiched between two substrates. The holographic media formulation is often formed of two or more components mixed to obtain a homogeneous formulation. The holographic media formulation may include two or more components which are mixed together prior to injection between the substrates. Curing of the holographic media formulation is substantially avoided during mixing, yet accelerated after the formulation is injected between the substrates. Accordingly, the system and techniques can be used to improve the large scale manufacturability of such media by allowing for fabrication of such media within reasonable cycle times, such as less than one minute, while adhering to stringent requirements for optical clarity and parallelism.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 29, 2005
    Inventors: Jathan Edwards, Ramon Hegel, Thomas Adam
  • Publication number: 20050123855
    Abstract: The invention provides a lubricant useful in magnetic recording media and optical recording media comprising a functionalized perfluoropolyether comprising multiple acrylate endgroups. More specifically, the lubricant of the invention is a functionalized perfluoropolyether comprising at least about two acrylate groups. In one embodiment, the lubricant of the invention is a functionalized perfluoropolyether comprising a perfluoropolyether tetraacrylate. A magnetic recording medium is also provided comprising a thin metal magnetic recording layer, said layer having a coating of the functionalized perfluoropolyether lubricant comprising at least about three acrylate end groups.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Inventor: Ramon Hegel
  • Publication number: 20050041272
    Abstract: In one embodiment, holographic data storage medium includes a first thermoplastic substrate portion having a thickness less than approximately 2 millimeters and a second thermoplastic substrate portion having a thickness less than approximately 2 millimeters. A holographic recording material may be sandwiched between the first and second thermoplastic substrate portions. By making thermoplastic substrate portions sufficiently thin, edge wedge problems can be avoided.
    Type: Application
    Filed: October 11, 2004
    Publication date: February 24, 2005
    Inventors: Jathan Edwards, Frank Aspen, Ramon Hegel, Chad Sandstrom