Patents by Inventor James Gary Wessel

James Gary Wessel 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: 20140254336
    Abstract: Disclosed are plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The disclosed plasmonic near-field transducers have an enlarged region and a flared region. In some embodiments the disclosed plasmonic near-field transducer can also include a peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg region of the near-field transducer, thus reducing its temperature.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Zoran Jandric, Lina Cao, Werner Scholz, James Gary Wessel
  • Patent number: 8804280
    Abstract: In an example, a method of manufacturing a transducer head comprises configuring a control circuit to actively synchronize magnetic responses of a shield and a write pole during operation. The method also comprises configuring the control circuit to energize at least one coil wire during operation with a current direction opposite to current flow in a main transducer head coil. In another example, a method comprises actively synchronizing magnetic responses of a shield and a write pole. In another example, a transducer head comprises a write pole and a shield, and a control circuit actively synchronizes magnetic responses of the shield and the write pole.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: August 12, 2014
    Assignee: Seagate Technology LLC
    Inventors: Radek Lopusnik, Mourad Benakli, Kirill Aleksandrovich Rivkin, Declan Macken, James Gary Wessel, Jason Bryce Gadbois
  • 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
  • Publication number: 20140147075
    Abstract: An apparatus includes a slider structure having a waveguide and a cavity configured to align a laser to the waveguide. The cavity includes a plurality of solder bumps on a bottom of the cavity configured to electrically and thermally couple the laser to the slider. At least one mechanical stopper is disposed in the cavity to facilitate vertical alignment between an output of the laser and an input of the waveguide. At least one solder bump is disposed on the mechanical stopper to facilitate lateral alignment between the output of the laser and the input of the waveguide in response to a reflow of the solder bumps.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventor: James Gary Wessel
  • 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
  • Publication number: 20140022673
    Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.
    Type: Application
    Filed: May 9, 2013
    Publication date: January 23, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Mourad Benakli, Kirill Aleksandrovich Rivkin, James Gary Wessel, Dehua Han, Huaqing Yin, Jianhua Xue
  • 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
  • Patent number: 8537501
    Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 17, 2013
    Assignee: Seagate Technology LLC
    Inventors: Mourad Benakli, Kirill Aleksandrovich Rivkin, James Gary Wessel, Dehua Han, Huaqing Yin, Scott Franzen, Jianhua Xue
  • Publication number: 20130201577
    Abstract: In an example, a method of manufacturing a transducer head comprises configuring a control circuit to actively synchronize magnetic responses of a shield and a write pole during operation. The method also comprises configuring the control circuit to energize at least one coil wire during operation with a current direction opposite to current flow in a main transducer head coil. In another example, a method comprises actively synchronizing magnetic responses of a shield and a write pole. In another example, a transducer head comprises a write pole and a shield, and a control circuit actively synchronizes magnetic responses of the shield and the write pole.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicant: Seagate Technology LLC
    Inventors: Radek Lopusnik, Mourad Benakli, Kirill Aleksandrovich Rivkin, Declan Macken, James Gary Wessel, Jason Bryce Gadbois
  • Patent number: 8470463
    Abstract: An apparatus and associated method are generally directed to a magnetic shield capable of screening magnetic flux with in-plane anisotropy. Various embodiments of the present invention may have at least one magnetic shield. The shield may be constructed of a Cobalt-Iridium compound capable of providing in-plane anisotropy along a longitudinal plane of the shield.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: June 25, 2013
    Assignee: Seagate Technology LLC
    Inventors: James Gary Wessel, Bin Lu, Werner Scholz
  • 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
  • Publication number: 20120281314
    Abstract: A magnetic shield may be capable of enhancing magnetic writing, particularly in transducing elements accessing data bits from data tracks. At least one magnetic shield is adjacent a write pole. The shield has a flux concentration feature on an air bearing surface (ABS) capable of enhancing magnetic undershoot between the shield and the write pole.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 8, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Radek Lopusnik, Kirill Aleksandrovich Rivkin, Mourad Benakli, James Gary Wessel, Scott Michael Franzen
  • Publication number: 20120270072
    Abstract: An apparatus and associated method are generally directed to a magnetic shield capable of screening magnetic flux with in-plane anisotropy. Various embodiments of the present invention may have at least one magnetic shield. The shield may be constructed of a Cobalt-Iridium compound capable of providing in-plane anisotropy along a longitudinal plane of the shield.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 25, 2012
    Applicant: SEAGATE TECHNOLOGY LLC.
    Inventors: James Gary Wessel, Bin Lu, Werner Scholz
  • Publication number: 20120250187
    Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 4, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Mourad Benakli, Kirill Aleksandrovich Rivkin, James Gary Wessel, Dehua Han, Huaqing Yin, Scott Franzen, Jianhua Xue
  • Publication number: 20120075748
    Abstract: A perpendicular write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing side, a leading side that is opposite the trailing side, and first and second sides; side gaps, wherein the side gaps are proximate the write pole along the first and second side edges; and side shields proximate the side gaps, wherein the side shields have gap facing surfaces and include at least one set of alternating layers of magnetic and non-magnetic materials, wherein only one kind of material makes up the gap facing surfaces at the air bearing surfaces.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Mark Thomas Kief, Alexandru Cazacu, Kaizhong Gao, Mark Anthony Gubbins, Ibro Tabakovic, Christina Laura Hutchinson, David Christopher Seets, James Gary Wessel