Patents by Inventor Raul Horacio Andruet

Raul Horacio Andruet 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).

  • Heater assembly and method of heating
    Patent number: 8929016
    Abstract: A magnetic recording head includes a magnetic writer comprising a main write pole and a return write pole. The magnetic recording head includes a write heater assembly comprising at least one first heater subassembly and at least one second heater subassembly. At least part of the magnetic write head is disposed between the first heater subassembly and the second heater subassembly. When the first heater subassembly, the second heater subassembly, and the magnetic writer are energized, a variation in the thermal protrusion of the head media interface of the magnetic recording head may be less than about 20 nm along the down track and/or cross track directions.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 6, 2015
    Assignee: Seagate Technology LLC
    Inventors: Kaizhong Gao, Raul Horacio Andruet, Xiaobin Wang
  • Controlling head-media spacing using a write coil
    Patent number: 8867323
    Abstract: While a heat-assisted, magnetic recording media is not being written to, heat applied from a write head to the recording media to facilitate writing to the recording media is removed. Power is applied to a write coil of the write head to control spacing between the write head and the recording media when the recording media is not being written to.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: October 21, 2014
    Assignee: Seagate Technology LLC
    Inventors: Raul Horacio Andruet, James Gary Wessel
  • CONTROLLING HEAD-MEDIA SPACING USING A WRITE COIL
    Publication number: 20140146647
    Abstract: While a heat-assisted, magnetic recording media is not being written to, heat applied from a write head to the recording media to facilitate writing to the recording media is removed. Power is applied to a write coil of the write head to control spacing between the write head and the recording media when the recording media is not being written to.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Raul Horacio Andruet, James Gary Wessel
  • HEAT ASSISTED MAGNETIC RECORDING DEVICE WITH PRE-HEATED WRITE ELEMENT
    Publication number: 20140029396
    Abstract: An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 30, 2014
    Applicant: Seagate Technology LLC
    Inventors: Tim Rausch, Jon D. Trantham, John West Dykes, Housan Dakroub, Charles Paul Henry, Edward Charles Gage, Raul Horacio Andruet, James Gary Wessel, James Dillon Kiely, Bruce Douglas Buch, Barmeshwar Vikramaditya
  • Selectively magnetic write gap insert
    Patent number: 8582237
    Abstract: A selectively magnetic insert that is capable of enhancing magnetic writing, such as in use as a data transducing head. In accordance with various embodiments, a write pole is in contact with a selectively magnetic insert that decouples the write pole from at least one adjacent shield in response a powered operation.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: November 12, 2013
    Assignee: Seagate Technology LLC
    Inventors: James Gary Wessel, Mourad Benakli, Raul Horacio Andruet, Kirill A. Rivkin, Sarbeswar Sahoo
  • Selectively Magnetic Write Gap Insert
    Publication number: 20120314325
    Abstract: A selectively magnetic insert that is capable of enhancing magnetic writing, such as in use as a data transducing head. In accordance with various embodiments, a write pole is in contact with a selectively magnetic insert that decouples the write pole from at least one adjacent shield in response a powered operation.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 13, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: James Gary Wessel, Mourad Benakli, Raul Horacio Andruet, Kirill A. Rivkin, Sarbeswar Sahoo