Patents by Inventor Jae-Young Yi

Jae-Young Yi 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: 9165570
    Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 20, 2015
    Assignee: Seagate Technology LLC
    Inventors: Zhengqi Lu, Ann Lynch, Daniel Hassett, Jiansheng Xu, Jae-Young Yi, Liwen Tan, Eric W. 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
  • Patent number: 9121886
    Abstract: Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for one or more alloyed layers that each include a ferromagnetic material and a refractory material. The alloyed layers are provided adjacent to a shield element or between soft magnetic layers of the sensor stack.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: September 1, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Eric W. Singleton, Liwen Tan, Jae-Young Yi, Konstantin Nikolaev
  • Publication number: 20150170686
    Abstract: Implementations disclosed herein provide for a magnetoresistive (MR) sensor including a synthetic antiferromagnetic (SAF) structure that is magnetically coupled a side shield element. The SAF structure includes at least one magnetic amorphous layer that is an alloy of a ferromagnetic material and a refractory material. The amorphous magnetic layer may be in contact with a non-magnetic layer and antiferromagnetically coupled to a layer in contact with an opposite surface of the non-magnetic layer.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 18, 2015
    Applicant: Seagate Technology LLC
    Inventors: Eric W. Singleton, Liwen Tan, Jae-Young Yi
  • Patent number: 9017832
    Abstract: Various embodiments may be generally directed to a magnetic element capable of optimized magnetoresistive data reading. Such a magnetic element may be configured at least with a magnetoresistive stack that has an electrode lamination having at least a transition metal layer disposed between a magnetically free layer of the magnetoresistive stack and an electrode layer of the electrode lamination.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 28, 2015
    Assignee: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Liwen Tan, Jae-Young Yi
  • Publication number: 20150103438
    Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Zhengqi Lu, Ann Lynch, Daniel Hassett, Jiansheng Xu, Jae-Young Yi, Liwen Tan, Eric W. Singleton
  • Patent number: 9001472
    Abstract: An apparatus includes a sensor stack, first and second shields positioned on opposite sides of the sensor stack, and a first shield stabilization structure adjacent to the first shield and applying a bias magnetic field to the first shield. A second shield stabilization structure can be positioned adjacent to the second shield.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 7, 2015
    Assignee: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Junjie Quan, Jae-Young Yi
  • Publication number: 20150084624
    Abstract: Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for one or more alloyed layers that each include a ferromagnetic material and a refractory material. The alloyed layers are provided adjacent to a shield element or between soft magnetic layers of the sensor stack.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: Seagate Technology LLC
    Inventors: Eric W. Singleton, Liwen Tan, Jae-Young Yi, Konstantin Nikolaev
  • Publication number: 20150002962
    Abstract: An apparatus disclosed herein includes a sensor stack including a first layer and an AFM stabilized bottom shield in proximity to the first layer, wherein the AFM stabilized bottom shield is magnetically coupled to the first layer.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Eric W. Singleton, Konstantin Nikolaev, Liwen Tan, Jae-Young Yi, Victor Boris Sapozhnikov, Mohammed Sharia Ullah Patwari
  • Patent number: 8922951
    Abstract: Various embodiments may be generally directed to a data storage device with at least a magnetic element having a magnetic stack positioned adjacent to and separated from at least one side shield on an air bearing surface (ABS). The side shield can be configured with a predetermined anisotropy variation along a down-track direction.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: December 30, 2014
    Assignee: Seagate Technology LLC
    Inventors: Victor Boris Sapozhnikov, Mohammed Shariat Ullah Patwari, Shaun Eric McKinlay, Konstantin Rudolfovich Nikolaev, Eric Walter Singleton, Jae-Young Yi
  • Patent number: 8922950
    Abstract: A magnetic shield that is capable of enhancing magnetic reading. In accordance with various embodiments, a magnetic element has a magnetically responsive stack shielded from magnetic flux and biased to a predetermined default magnetization by at least one lateral side shield that has a transition metal layer disposed between first and second ferromagnetic layers.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 30, 2014
    Assignee: Seagate Technology LLC
    Inventors: Eric W. Singleton, Jae-Young Yi, Kaizhong Gao, Dimitar V. Dimitrov, Dian Song, Vladyslav A. Vas′ko
  • Publication number: 20140356648
    Abstract: A stack having a seed layer structure with a first part having a first cross-track width and a free layer deposited over the seed layer structure and with a second cross-track width, wherein the first cross-track width is greater than the second cross-track width. In one implementation, the seed layer structure further comprises an antiferromagnetic (AFM) layer and a synthetic antiferromagnetic (SAF) layer. In one alternate implementation, the cross-track width of the seed layer structure is substantially equal to the combined cross-track width of the free layer and cross-track width of two permanent magnets.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Eric Walter Singleton, Jae-Young Yi, Konstantin Nikolaev, Victor Boris Sapozhnikov, Stacey Christine Wakeham, Shaun Eric McKinlay
  • Publication number: 20140268417
    Abstract: A data reader generally capable of sensing data bits may be configured at least with a magnetic stack that has free and fixed magnetization structures atop a magnetic seed layer. A bottom shield may be positioned contactingly adjacent the magnetic stack opposite a top shield with the bottom shield having a fixed pinning magnetization set to a predetermined magnetic orientation.
    Type: Application
    Filed: March 16, 2013
    Publication date: September 18, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Eric Walter Singleton, Liwen Tan, Jae-Young Yi
  • Patent number: 8822046
    Abstract: A stack having a seed layer structure with a first part having a first cross-track width and a free layer deposited over the seed layer structure and with a second cross-track width, wherein the first cross-track width is greater than the second cross-track width. In one implementation, the seed layer structure further comprises an antiferromagnetic (AFM) layer and a synthetic antiferromagnetic (SAF) layer. In one alternate implementation, the cross-track width of the seed layer structure is substantially equal to the combined cross-track width of the free layer and cross-track width of two permanent magnets.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: September 2, 2014
    Assignee: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Jae-Young Yi, Konstantin Nikolaev, Victor Boris Sapozhnikov, Stacey Christine Wakeham, Shaun Eric McKinlay
  • Publication number: 20140218821
    Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Zhengqi Lu, Ann Lynch, Daniel Hassett, Jiansheng Xu, Jae-Young Yi, Liwen Tan, Eric W. Singleton
  • Publication number: 20140212691
    Abstract: Various embodiments may be generally directed to a magnetic element capable of optimized magnetoresistive data reading. Such a magnetic element may be configured at least with a magnetoresistive stack that has an electrode lamination having at least a transition metal layer disposed between a magnetically free layer of the magnetoresistive stack and an electrode layer of the electrode lamination.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Eric Walter Singleton, Liwen Tan, Jae-Young Yi
  • Publication number: 20140168818
    Abstract: Implementations described and claimed herein provide a read sensor structure having a synthetic anti-ferromagnetic (SAF) structure with a pinning that is canted with respect to an air bearing surface (ABS) of the read sensor. In an implementation of the read sensor, the angle between the pinning direction of a reference layer (RL) and the pinning direction of a free layer (FL) is obtuse.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Victor Boris Sapozhnikov, Scott Wilson Stokes, Jae-Young Yi, Mohammed Shariat Ullah Patwari, Yonghua Chen
  • Publication number: 20140160596
    Abstract: Various embodiments may be generally directed to a data storage device with at least a magnetic element having a magnetic stack positioned adjacent to and separated from at least one side shield on an air bearing surface (ABS). The side shield can be configured with a predetermined anisotropy variation along a down-track direction.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 12, 2014
    Applicant: Seagate Technology LLC
    Inventors: Victor Boris Sapozhnikov, Mohammed Shariat Ullah Patwari, Shaun Eric McKinlay, Konstantin Rudolfovich Nikolaev, Eric Walter Singleton, Jae-Young Yi
  • Publication number: 20140104729
    Abstract: An apparatus includes a sensor stack, first and second shields positioned on opposite sides of the sensor stack, and a first shield stabilization structure adjacent to the first shield and applying a bias magnetic field to the first shield. A second shield stabilization structure can be positioned adjacent to the second shield.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Junjie Quan, Jae-Young Yi
  • Patent number: 8659854
    Abstract: A magnetoresistive (MR) reader is adjacent to at least one shield that extends from an air bearing surface (ABS) a first distance. The shield has a stabilizing feature that is contactingly adjacent the MR reader and extends from the ABS a second distance that is less than the first distance.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 25, 2014
    Assignee: Seagate Technology LLC
    Inventors: Eric W. Singleton, Junjie Quan, Jae-Young Yi, Shaun E. McKinlay