Patents by Inventor Takenori Maehasi

Takenori Maehasi 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).

  • Information recording method and information recording apparatus for recording medium
    Patent number: 8134904
    Abstract: A recording method for recording data in basic reproduction unit to a recording medium having a first recording layer and a second recording layer, includes detecting a size of an unrecorded region of the first recording layer while recording data in the basic reproduction unit in the first recording layer, comparing the size of the unrecorded region of the first recording layer with a specified value and stopping recording in the first recording layer at the boundary of the basic reproduction unit when the size of the unrecorded region is smaller than the specified value, and recording a subsequent data in the second recording layer.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: March 13, 2012
    Assignee: Panasonic Corporation
    Inventor: Takenori Maehasi
  • Information Recording Method and Information Recording Apparatus for Recording Medium
    Publication number: 20080212445
    Abstract: A recording method for recording data in basic reproduction unit to a recording medium having a first recording layer and a second recording layer, includes detecting a size of an unrecorded region of the first recording layer while recording data in the basic reproduction unit (ex. “Cell” unit) in the first recording layer, comparing the size of the unrecorded region of the first recording layer with a specified value (allowable maximum size of the basic reproduction unit, or size of data about to be recorded in the first recording layer), and stopping recording in the first recording layer at the boundary of the basic reproduction unit when the size of the unrecorded region is smaller than the specified value, and recording a subsequent data in the second recording layer.
    Type: Application
    Filed: July 21, 2005
    Publication date: September 4, 2008
    Inventor: Takenori Maehasi