Patents by Inventor Mohammed Patwari

Mohammed Patwari 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).

  • Patent number: 9761279
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: September 12, 2017
    Assignee: Seagate Technology LLC
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Yi
  • Patent number: 9720053
    Abstract: Implementations described and claimed herein provide a system comprising an external magnetic field generator, wherein the external field magnetic field generator is configured to rock an effective annealing magnetic field between a first positive angle and a second negative angle compared to a desired pinning field orientation in an AFM/PL structure.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: August 1, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Konstantin Nikolaev, Victor Sapozhnikov, Taras Pokhil, Jae-Young Yi, Mohammed Patwari, Eric W. Singleton
  • Publication number: 20170200479
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Patent number: 9607634
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: March 28, 2017
    Assignee: Seagate Technology LLC
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Patent number: 9454978
    Abstract: A reader sensor having a dusting layer having a thickness less than 5 Angstroms between and in contact with the AFM layer and with the pinned layer. The dusting layer comprises a non-magnetic, electrically conducting material, such as ruthenium or iridium. The reader sensor has a free layer composed of a material free of nickel (Ni).
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: September 27, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Konstantin Nikolaev, Taras Pokhil, Andrzej Stankiewicz, Mohammed Patwari, Eric Singleton
  • Publication number: 20160163337
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Publication number: 20160118066
    Abstract: A reader sensor having a dusting layer having a thickness less than 5 Angstroms between and in contact with the AFM layer and with the pinned layer. The dusting layer comprises a non-magnetic, electrically conducting material, such as ruthenium or iridium. The reader sensor has a free layer composed of a material free of nickel (Ni).
    Type: Application
    Filed: October 15, 2015
    Publication date: April 28, 2016
    Inventors: Konstantin Nikolaev, Taras Pokhil, Andrzej Stankiewicz, Mohammed Patwari, Eric Singleton
  • Publication number: 20150369879
    Abstract: Implementations described and claimed herein provide a system comprising an external magnetic field generator, wherein the external field magnetic field generator is configured to rock an effective annealing magnetic field between a first positive angle and a second negative angle compared to a desired pinning field orientation in an AFM/PL structure.
    Type: Application
    Filed: August 31, 2015
    Publication date: December 24, 2015
    Inventors: Konstantin Nikolaev, Victor Sapozhnikov, Taras Pokhil, Jae-Young Yi, Mohammed Patwari, Eric W. Singleton
  • Patent number: 9196272
    Abstract: A reader sensor having a dusting layer having a thickness less than 5 Angstroms between and in contact with the AFM layer and with the pinned layer. The dusting layer comprises a non-magnetic, electrically conducting material, such as ruthenium or iridium. The reader sensor has a free layer composed of a material free of nickel (Ni).
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: November 24, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Konstantin Nikolaev, Taras Pokhil, Andrzej Stankiewicz, Mohammed Patwari, Eric Singleton
  • Patent number: 9171559
    Abstract: A reader sensor that has a sensor stack with an AFM layer, a pinned stabilization layer, and a pinned layer, with the pinned stabilization layer closer to the AFM layer than to the pinned layer. The stack also includes a non-magnetic spacer layer between and in contact with the pinned stabilization layer and with the pinned layer. A magnetic coupling between the pinned stabilization layer and the pinned layer is no more than 50% of a magnetic coupling between the pinned stabilization layer and the AFM layer.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: October 27, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Konstantin Nikolaev, Taras Pokhil, Andrzej Stankiewicz, Mohammed Patwari, Eric Singleton
  • Patent number: 9147409
    Abstract: Implementations disclosed herein provide a method comprising rocking an effective annealing magnetic field between a first positive angle and a second negative angle compared to a desired pinning field orientation in an AFM/PL structure, wherein an angular amplitude of rocking the effective annealing magnetic field between a first positive angle and a second negative angle gradually decreases towards the desired orientation of pinning in the AFM/PL structure.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 29, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Konstantin Nikolaev, Victor Sapozhnikov, Taras Pokhil, Jae-Young Yi, Mohammed Patwari, Eric W. Singleton