Patents by Inventor Song Xue

Song Xue 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: 7423826
    Abstract: A readback system includes a magnetic sensor that receives a sensor current. The magnetic sensor senses magnetic bits at a bit frequency and generates a sensor output. The readback system includes a channel circuit that modulates the sensor current at a modulation frequency higher than the bit frequency. The channel circuit samples the sensor output and combines multiple samples of the sensor output per magnetic bit into a combined sample output.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: September 9, 2008
    Assignee: Seagate Technology LLC
    Inventors: Shaoping Li, Jin Insik, Kaizhong Gao, Song Xue, Mike Montemorra, Housan Dakroub, Jason C. Jury
  • Publication number: 20080200691
    Abstract: The present invention provides an efficient, safe and cost effective way to prepare 5-(4-methyl-1H-imidazol-1-yl)-3-(trifluoromethyl)-benzenamine which is an intermediate for the preparation of substituted pyrimidinylaminobenzamides of formula (II):
    Type: Application
    Filed: June 7, 2006
    Publication date: August 21, 2008
    Inventors: Murat Acemoglu, Berthold Schenkel, Wen-Chung Shieh, Song Xue, Erich Widmer, Pedro Garcia Fuentes, Jose Martin Medina, Francisco Vicente Banos
  • Publication number: 20080200692
    Abstract: The present invention provides an efficient, safe and cost effective way to prepare 5-(4-methyl-1H-imidazol-1-yl)-3-(trifluoromethyl)-benzenamine which is a key intermediate for the preparation of substituted pyrimidinylaminobenzamides of formula (II):
    Type: Application
    Filed: June 7, 2006
    Publication date: August 21, 2008
    Inventors: Stephan Abel, Murat Acemoglu, Bernhard Erb, Christoph Krell, Joseph Sclafani, Mark Meisenbach, Mahavir Prashad, Wen-Chung Shieh, Song Xue
  • Patent number: 7359161
    Abstract: A magnetic sensor is provided. The magnetic sensor includes a magnetoresistive multi-layered portion that has a first resistance region and a second resistance region. At least two contacts are coupled to the magnetoresistive multi-layered portion. A sensing current flows from a first contact of the at least two contacts to a second contact of the at least two contacts via the first resistance region and the second resistance region of the magnetoresistive multi-layered portion. The first resistance region promotes a primary flow of the sensing current in a first direction substantially perpendicular to surface planes of the layers of the magnetoresistive multi-layered portion, and the second resistance region promotes the primary flow of the sensing current in a second direction substantially in parallel to surface planes of the layers of the magnetoresistive multi-layered portion.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 15, 2008
    Assignee: Seagate Technology LLC
    Inventors: Shaoping Li, Song Xue, Kaizhong Gao, Michael R. Montemorra, Patrick Ryan
  • Publication number: 20070263322
    Abstract: A magnetic device having a magnetic feature, the magnetic feature including a magnetic portion comprising a magnetic material, a region of non-magnetic material adjacent to the magnetic portion, and a stop layer disposed above the region of non-magnetic material, defining a planar upper boundary of the magnetic portion.
    Type: Application
    Filed: July 18, 2007
    Publication date: November 15, 2007
    Applicant: Seagate Technology LLC
    Inventors: Picheng Huang, Paul Anderson, Laura Stearns, Song Xue
  • Publication number: 20070217084
    Abstract: A device resets a biasing magnetization of a biasing element in a magnetic sensor. The device includes a magnetic structure that is magnetically coupled to the biasing element. A conductive element is disposed around at least a portion of the magnetic structure. When a current is passed through the conductive element, a magnetic field is produced that resets the biasing magnetization of the biasing element.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Applicant: Seagate Technology LLC
    Inventors: Song Xue, Paul Anderson, Kaizhong Gao, Kristin Duxstad
  • Publication number: 20070211362
    Abstract: A readback system includes a magnetic sensor that receives a sensor current. The magnetic sensor senses magnetic bits at a bit frequency and generates a sensor output. The readback system includes a channel circuit that modulates the sensor current at a modulation frequency higher than the bit frequency. The channel circuit samples the sensor output and combines multiple samples of the sensor output per magnetic bit into a combined sample output.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 13, 2007
    Applicant: Seagate Technology LLC
    Inventors: Shaoping Li, Insik Jin, Kaizhong Gao, Song Xue, Mike Montemorra, Housan Dakroub, Jason Jury
  • Publication number: 20070209437
    Abstract: The present invention relates to magnetic micro-electromechanical systems (MEMS) or magnetic MEMS devices, particularly electronic devices in which a member adjoins a base or substrate and extends from the substrate proximate to a magnetic field element having an altered output associated with movement of the member. The first magnetic field element is adapted to emit or detect a magnetic field and positioned proximate to the member, and the second magnetic field element adapted to emit or detect a magnetic field and positioned proximate to the base or substrate, such that movement of the member in a first direction by a non-magnetic force results in a variation of magnetic field strength associated with displacement of the sensor in a first direction. The invention also relates to methods for fabricating magnetic MEMS devices, transducers, sensors, and accelerometers.
    Type: Application
    Filed: April 7, 2006
    Publication date: September 13, 2007
    Inventors: Song Xue, Nurul Amin, Patrick Ryan, John Wright, Jeffery Berkowitz, Insik Jin
  • Publication number: 20070139827
    Abstract: A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. At least one of the first magnetic portion and the second magnetic portion includes a multilayer structure having a first magnetic layer having a positive magnetostriction adjacent to the barrier layer, a second magnetic layer, and an intermediate layer between the first magnetic layer and the second magnetic layer. The magnetic sensor has an MR ratio of at least about 80% when the magnetic sensor has a resistance-area (RA) product of about 1.0 ?·?m2.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: Zheng Gao, Brian Karr, Song Xue, Eric Granstrom, Khuong Tran, Yi Li
  • Patent number: 7233353
    Abstract: A power supply reset boosting element which boosts a level of the reset voltage to a level higher than the level of the power supply. The boosted voltage is isolated from both the power supply and from undesired switching by special transistors which can withstand the voltage power supply level.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: June 19, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Song Xue
  • Publication number: 20070097546
    Abstract: A perpendicular writer includes a surface, a main pole proximate the surface, a return pole proximate the surface, and a back yoke connecting the main pole to the return pole distal the surface. The return pole is configured such that a magnetization of a portion of the return pole adjacent the surface is held substantially parallel to the surface during a write operation.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Applicant: Seagate Technology LLC
    Inventors: Shaoping Li, Lei Wang, Chunhong Hou, Song Xue, Daniel Brown
  • Publication number: 20070097559
    Abstract: A multilayered magnetoresistive device includes a specular layer positioned on at least one sidewall and a copper layer is positioned between the specular layer and the sidewall.
    Type: Application
    Filed: December 12, 2006
    Publication date: May 3, 2007
    Applicant: Seagate Technology LLC
    Inventors: Song Xue, Paul Anderson, Michael Kautzky, Xuefei Tang, Patrick Ryan
  • Publication number: 20070058300
    Abstract: A magnetoresistive stack includes a free layer, a separating layer, a pinned layer, and a magnetic stabilizer in close proximity to the pinned layer such that such that the magnetic stabilizer enhances the stability of the magnetization direction of the pinned layer.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 15, 2007
    Applicant: Seagate Technology LLC
    Inventors: Song Xue, Paul Anderson, Konstantin Nikolaev, Patrick Ryan
  • Publication number: 20070050404
    Abstract: A system and/or methodology that enables schema packaging, distribution and availability. Aspects of the invention employ signing technology to facilitate secure definition of a schema package. The system and/or methodology can also include the schema package as a resource in a client-side assembly thereby guaranteeing that exactly the same infrastructure used to discover the assembly will be leverageable in discovery of the schema package(s). Other aspects can include the schema package as a satellite assemble or as a separate file. In these scenarios, the invention can facilitate constructing and distributing the schema package and information necessary to enable the client to interact with the store with regard to uninstalled schemas.
    Type: Application
    Filed: November 23, 2005
    Publication date: March 1, 2007
    Applicant: Microsoft Corporation
    Inventors: Jason Hunter, David Nettleton, Song Xue
  • Publication number: 20060198047
    Abstract: The present invention relates to a recording head with a storage medium. The head includes an assist mechanism to assist operation of the head.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 7, 2006
    Inventors: Song Xue, Mark Kief, Johannes Ek, Nurul Amin, Olle Heinonen, Kaizhong Gao, Patrick Ryan
  • Publication number: 20060192872
    Abstract: A power supply reset boosting element which boosts a level of the reset voltage to a level higher than the level of the power supply. The boosted voltage is isolated from both the power supply and from undesired switching by special transistors which can withstand the voltage power supply level.
    Type: Application
    Filed: April 6, 2006
    Publication date: August 31, 2006
    Inventor: Song Xue
  • Publication number: 20060176619
    Abstract: A magnetic tunneling junction device has a fixed ferromagnetic layer, a free ferromagnetic layer, and an insulating tunnel barrier layer made of gallium oxide. The insulating tunneling barrier layer is deposited by RF sputtering of gallium oxide. The magnetic tunneling junction device has a resistance area product less than 7 ?·?m2.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 10, 2006
    Applicant: Seagate Technology LLC
    Inventors: Zheng Gao, Song Xue, Eric Granstrom
  • Publication number: 20060176601
    Abstract: The present invention provides a magnetic writer. The magnetic writer comprises a write circuit, a write pole, a first write coil for inducing a first magnetic field in the write pole by a first current provided by the write circuit, and a second write coil for inducing a second magnetic field in the write pole by a second current provided by the write circuit. The write circuit provides a first current through the first coil and a second current through the second coil. The write circuit controls the direction of the first current and the second current so that, during writing, the first magnetic field and the second magnetic field have components perpendicular to the air bearing surface that are in the same direction. When not writing, the first magnetic field and second magnetic field have components perpendicular to the air bearing surface in opposite directions.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 10, 2006
    Applicant: Seagate Technology LLC
    Inventors: Nurul Amin, Song Xue, Partrick Ryan
  • Patent number: 7053945
    Abstract: A power supply reset boosting element which boosts a level of the reset voltage to a level higher than the level of the power supply. The boosted voltage is isolated from both the power supply and from undesired switching by special transistors which can withstand the voltage power supply level.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: May 30, 2006
    Assignee: Micron Technolopgy, Inc.
    Inventor: Song Xue
  • Patent number: 7009646
    Abstract: An image sensor chip is formed with the image sensor abutting up to three edges of the chip. Certain parts of the row logic which are required to be adjacent to each of the rows are placed into the array, in place of certain pixels of the array. Those missing pixels are then interpolated.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: March 7, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Eric R. Fossum, David Schick, Song Xue