Patents by Inventor Mark Ostrowski

Mark Ostrowski 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: 20190048487
    Abstract: Methods of forming near field transducers (NFTs) including electrodepositing a plasmonic material.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Inventors: Lien Lee, Jie Gong, Venkatram Venkatasamy, Yongjun Zhao, Lijuan Zou, Dongsung Hong, Ibro Tabakovic, Mark Ostrowski
  • Patent number: 10100422
    Abstract: Methods of forming near field transducers (NFTs) including electrodepositing a plasmonic material.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: October 16, 2018
    Assignee: Seagate Technology LLC
    Inventors: Lien Lee, Jie Gong, Venkatram Venkatasamy, Yongjun Zhao, Lijuan Zou, Dongsung Hong, Ibro Tabakovic, Mark Ostrowski
  • Patent number: 9834341
    Abstract: A cap and container assembly includes a container having a base and a side wall extending upward from the base. The base and the side wall define an interior, and the side wall defines an opening leading to the interior. A cap moves with respect to the container between an opened position in which the opening is exposed, and a closed position in which the cap covers the opening. A tab projects outward from the cap and has a bottom surface. A spacer projects from the container side wall at a location beneath the tab when the assembly is in the closed position. The spacer bends inward towards the container in response to application of a sufficient force, to move from a locked position that blocks the bottom surface of the tab, to an unlocked position to expose at least a portion of the bottom surface of the tab.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 5, 2017
    Assignee: CSP Technologies, Inc.
    Inventors: Jean-Pierre Giraud, Herve Pichot, John Belfance, Mark Ostrowski, Michael Bucholtz, Joseph W. Rogers
  • Patent number: 9759863
    Abstract: A waveguide a core extending along a light propagation and a coupling layer adjacent one side of the core along the light propagation direction. A gradient index material is adjacent to at least one side of the coupling layer. The gradient index material has a first refractive index proximate the coupling layer and a second refractive index away from the coupling layer. The gradient index material is configured to direct light from an input facet to the core layer.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: September 12, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Chubing Peng, Mark Ostrowski, Chang Xie, Tae-Woo Lee, Lisa M. Hanson
  • Publication number: 20170190483
    Abstract: A cap and container assembly includes a container having a base and a side wall extending upward from the base. The base and the side wall define an interior, and the side wall defines an opening leading to the interior. A cap moves with respect to the container between an opened position in which the opening is exposed, and a closed position in which the cap covers the opening. A tab projects outward from the cap and has a bottom surface. A spacer projects from the container side wall at a location beneath the tab when the assembly is in the closed position. The spacer bends inward towards the container in response to application of a sufficient force, to move from a locked position that blocks the bottom surface of the tab, to an unlocked position to expose at least a portion of the bottom surface of the tab.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Inventors: Jean-Pierre Giraud, Herve Pichot, John Belfance, Mark Ostrowski, Michael Bucholtz, Joseph W. Rogers
  • Patent number: 9576595
    Abstract: A mounting surface of a read/write head is prepared to receive an epitaxial layer. The mounting surface is proximate a waveguide of the read/write head, and the waveguide is configured to receive an optical output from the epitaxial layer. The epitaxial layer is transfer printed on to the mounting surface. The mounting surface maintains a vertical alignment between the optical output and the waveguide. The epitaxial layer is processed to form a laser integrated with the read/write head.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: February 21, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Roger L. Hipwell, Jr., Mark Ostrowski, Marcus B. Mooney, Michael J. Hardy, Scott Eugene Olson, Mark Gubbins
  • Patent number: 9378757
    Abstract: The disclosed methods enable the production of plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The plasmonic near-field transducers have an enlarged region and a peg region. The peg region includes a peg region in proximity to an air-bearing surface above a recording medium and also includes a flared region between and in contact with the enlarged region and the peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg portion of the near-field transducer, thus reducing its temperature.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 28, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Yongjun Zhao, Dongsung Hong, Lijuan Zou, Mark Ostrowski
  • Publication number: 20160130045
    Abstract: A cap and container assembly includes a container having a base and a side wall extending upward from the base. The base and the side wall define an interior, and the side wall defines an opening leading to the interior. A cap moves with respect to the container between an opened position in which the opening is exposed, and a closed position in which the cap covers the opening. A tab projects outward from the cap and has a bottom surface. A spacer projects from the container side wall at a location beneath the tab when the assembly is in the closed position. The spacer bends inward towards the container in response to application of a sufficient force, to move from a locked position that blocks the bottom surface of the tab, to an unlocked position to expose at least a portion of the bottom surface of the tab.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 12, 2016
    Inventors: Jean-Pierre Giraud, Herve Pichot, John Belfance, Mark Ostrowski, Michael Bucholtz, Joseph W. Rogers
  • Patent number: 9283651
    Abstract: An electrical lapping guide has a body with a thickness along a wafer axis, the body comprising a layer of conductive material having a resistivity. The conductive material layer comprises a first contact region and a second contact region, the first and second contact regions configured to electrically connect the electrical lapping guide to electrical leads. A lapping edge comprises an air-bearing plane axis perpendicular to a lapping axis, and a back edge opposite the lapping edge, the back edge comprising a plurality of notches.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 15, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Yongjun Zhao, David C. Seets, Mark Ostrowski
  • Patent number: 9196279
    Abstract: A method fabricating a near field transducer for a heat assisted magnetic recording head including forming a peg region of a near field transducer along a first portion of a substrate of a heat assisted magnetic recording head, removing a first portion of the peg region, fabricating a barrier material along a surface of the peg region created by the removal of the first portion of the peg region; and forming an enlarged region adjacent the surface such that the barrier material is disposed at least between the surface of the peg region and the enlarged region.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 24, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: David C. Seets, Yongjun Zhao, Mark Ostrowski
  • Patent number: 9129626
    Abstract: Embodiments are directed to an apparatus having an air-bearing surface that is configured to interact with magnetic medium. The apparatus includes a waveguide and a plasmonic near-field transducer positioned at or near the air-bearing surface. The plasmonic near-field transducer is operatively coupled to the waveguide. The plasmonic near-field transducer includes an enlarged region and a peg region. The peg region extends from the enlarged region towards the air-bearing surface. The peg region has at least a portion of a periphery of its cross-sectional shape include curvature or at least one substantially obtuse angle.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: September 8, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Michael Christopher Kautzky, James Gary Wessel, Mark Ostrowski, Tae-Woo Lee
  • Publication number: 20150117169
    Abstract: Embodiments are directed to an apparatus having an air-bearing surface that is configured to interact with magnetic medium. The apparatus includes a waveguide and a plasmonic near-field transducer positioned at or near the air-bearing surface. The plasmonic near-field transducer is operatively coupled to the waveguide. The plasmonic near-field transducer includes an enlarged region and a peg region. The peg region extends from the enlarged region towards the air-bearing surface. The peg region has at least a portion of a periphery of its cross-sectional shape include curvature or at least one substantially obtuse angle.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Applicant: Seagate Technology LLC
    Inventors: Michael Christopher Kautzky, James Gary Wessel, Mark Ostrowski, Tae-Woo Lee
  • Publication number: 20150083601
    Abstract: Methods of forming near field transducers (NFTs) including electrodepositing a plasmonic material.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Lien Lee, Jie Gong, Venkatram Venkatasamy, Yongjun Zhao, Lijuan Zou, Dongsung Hong, Ibro Tabakovic, Mark Ostrowski
  • Publication number: 20150072593
    Abstract: An electrical lapping guide has a body with a thickness along a wafer axis, the body comprising a layer of conductive material having a resistivity. The conductive material layer comprises a first contact region and a second contact region, the first and second contact regions configured to electrically connect the electrical lapping guide to electrical leads. A lapping edge comprises an air-bearing plane axis perpendicular to a lapping axis, and a back edge opposite the lapping edge, the back edge comprising a plurality of notches.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Seagate Technology LLC
    Inventors: Yongjun Zhao, David C. Seets, Mark Ostrowski
  • Publication number: 20140376345
    Abstract: A method fabricating a near field transducer for a heat assisted magnetic recording head including forming a peg region of a near field transducer along a first portion of a substrate of a heat assisted magnetic recording head, removing a first portion of the peg region, fabricating a barrier material along a surface of the peg region created by the removal of the first portion of the peg region; and forming an enlarged region adjacent the surface such that the barrier material is disposed at least between the surface of the peg region and the enlarged region.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 25, 2014
    Inventors: David C. Seets, Yongjun Zhao, Mark Ostrowski
  • Patent number: 8873348
    Abstract: A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: October 28, 2014
    Assignee: Seagate Technology LLC
    Inventors: Roger L. Hipwell, Yongjun Zhao, Mark Ostrowski, Andrew D. Habermas
  • Publication number: 20140251948
    Abstract: The disclosed methods enable the production of plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The plasmonic near-field transducers have an enlarged region and a peg region. The peg region includes a peg region in proximity to an air-bearing surface above a recording medium and also includes a flared region between and in contact with the enlarged region and the peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg portion 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: Yongjun Zhao, Dongsung Hong, Lijuan Zou, Mark Ostrowski
  • Publication number: 20140091130
    Abstract: A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: Seagate Technology LLC
    Inventors: Roger L. Hipwell, Yongjun Zhao, Mark Ostrowski, Andrew D. Habermas
  • Patent number: 8611193
    Abstract: A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 17, 2013
    Assignee: Seagate Technology LLC
    Inventors: Roger L. Hipwell, Yongjun Zhao, Mark Ostrowski, Andrew D. Habermas
  • Patent number: 8435654
    Abstract: The invention relates to bit patterned recording media having a stop layer for chemical mechanical polishing. One embodiment of the present invention is a method of manufacturing a magnetic recording medium comprising the step of planarizing by chemical mechanical polishing until the stop layer is reached. The present invention also provides a magnetic recording medium having a stop layer.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: May 7, 2013
    Assignee: Seagate Technology LLC
    Inventors: Bing Yen, Jim Hennessey, Eric Freeman, Kim Yang Lee, David S. Kuo, Mark Ostrowski