Patents by Inventor Paul Nguyen

Paul Nguyen 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: 20060049472
    Abstract: A method and system for providing a magnetic element is disclosed. The method and system include providing a pinned layer, a free layer, and a spacer layer between the pinned and free layers. The spacer layer is nonmagnetic. The magnetic element is configured to allow the free layer to be switched due to spin transfer when a write current is passed through the magnetic element. In one aspect, the method and system include providing a spin engineered layer adjacent to the free layer. The spin engineered layer is configured to more strongly scatter majority electrons than minority electrons. In another aspect, at least one of the pinned, free, and spacer layers is a spin engineered layer having an internal spin engineered layer configured to more strongly scatter majority electrons than minority electrons. In this aspect, the magnetic element may include another pinned layer and a barrier layer between the free and pinned layers.
    Type: Application
    Filed: September 9, 2004
    Publication date: March 9, 2006
    Inventors: Zhitao Diao, Yiming Huai, Thierry Valet, Paul Nguyen, Mahendra Pakala
  • Publication number: 20060036893
    Abstract: A system is disclosed and claimed for debugging Ethernet adapters and Ethernet adapter device drivers by automatically monitoring Ethernet adapter functionality and automatically turning on debug traces upon detecting incorrect Ethernet adapter functionality. An embodiment maintains a counter representing the number of incorrect Ethernet adapter functionality events minus the number of correct Ethernet adapter functionality events. If the counter reaches a threshold value, the Ethernet adapter device driver automatically enables debug traces for storing functionality information to a trace table.
    Type: Application
    Filed: June 17, 2004
    Publication date: February 16, 2006
    Applicant: International Business Machines Corporation
    Inventors: Debbie Anglin, Jon Mason, Paul Nguyen, Brian Rzycki
  • Publication number: 20050237787
    Abstract: A method and system for providing a magnetic element is disclosed. The method and system include providing a free layer, a spacer layer, and a pinned layer. The free layer is ferromagnetic and has a free layer magnetization. The spacer layer is nonmagnetic and resides between the pinned and free layers. The pinned layer includes first and second ferromagnetic layers having first and second magnetizations, a nonmagnetic spacer layer, and a spin depolarization layer. Residing between the first and second ferromagnetic layers, the nonmagnetic spacer layer is conductive and promotes antiparallel orientations between the first and second magnetizations. The spin depolarization layer is configured to depolarize at least a portion of a plurality of electrons passing through it. The magnetic element is also configured to allow the free layer magnetization to change direction due to spin transfer when a write current is passed through the magnetic element.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 27, 2005
    Inventors: Yiming Huai, Paul Nguyen
  • Publication number: 20050201023
    Abstract: A method and system for providing a magnetic element capable of being written using spin-transfer effect while generating a high output signal and a magnetic memory using the magnetic element are disclosed. The magnetic element includes a first ferromagnetic pinned layer, a nonmagnetic spacer layer, a ferromagnetic free layer, an insulating barrier layer and a second ferromagnetic pinned layer. The pinned layer has a magnetization pinned in a first direction. The nonmagnetic spacer layer is conductive and is between the first pinned layer and the free layer. The barrier layer resides between the free layer and the second pinned layer and is an insulator having a thickness allowing electron tunneling through the barrier layer. The second pinned layer has a magnetization pinned in a second direction. The magnetic element is configured to allow the magnetization of the free layer to change direction, due to spin transfer when a write current is passed through the magnetic element.
    Type: Application
    Filed: April 25, 2005
    Publication date: September 15, 2005
    Inventors: Yiming Huai, Paul Nguyen
  • Publication number: 20050189574
    Abstract: A method and system for providing a magnetic element that can be used in a magnetic memory is disclosed. The magnetic element includes pinned, nonmagnetic spacer, and free layers. The spacer layer resides between the pinned and free layers. The free layer can be switched using spin transfer when a write current is passed through the magnetic element. The magnetic element may also include a barrier layer, a second pinned layer. Alternatively, second pinned and second spacer layers and a second free layer magnetostatically coupled to the free layer are included. At least one free layer has a high perpendicular anisotropy. The high perpendicular anisotropy has a perpendicular anisotropy energy that is at least twenty and less than one hundred percent of the out-of-plane demagnetization energy.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 1, 2005
    Inventors: Paul Nguyen, Yiming Huai
  • Publication number: 20050184839
    Abstract: A method and system for providing a magnetic element that can be used in a magnetic memory is disclosed. The magnetic element includes pinned, nonmagnetic spacer, and free layers. The spacer layer resides between the pinned and free layers. The free layer can be switched using spin transfer when a write current is passed through the magnetic element. The magnetic element may also include a barrier layer, a second pinned layer. Alternatively, second pinned and second spacer layers and a second free layer magnetostatically coupled to the free layer are included. In one aspect, the free layer(s) include ferromagnetic material(s) diluted with nonmagnetic material(s) and/or ferrimagnetically doped to provide low saturation magnetization(s).
    Type: Application
    Filed: February 19, 2004
    Publication date: August 25, 2005
    Inventors: Paul Nguyen, Yiming Huai, Zhitao Diao, Frank Albert
  • Publication number: 20050185334
    Abstract: The present invention presents a method for fabricating coil elements for magnetic write heads. A coil pattern is formed on a substrate using photolithographic techniques. The substrate is etched using reactive ion etching, creating a coil-shaped trench in the substrate. Thin film seed layers are deposited using ion beam deposition. The substrate is electroplated with metal filling the trenches with metal. The substrate is chemical mechanical polished to remove excess metal and planarize the air bearing surface of the write head.
    Type: Application
    Filed: April 18, 2005
    Publication date: August 25, 2005
    Inventors: Richard Hsiao, Quang Le, Paul Nguyen, Son Nguyen, Mustafa Pinarbasi, Patrick Webb, Howard Zolla
  • Publication number: 20050063222
    Abstract: A method and system for providing and magnetic element is disclosed. In one aspect, the magnetic element includes at least a pinned layer, a free layer, and a current confined layer residing between the pinned layer and the free layer. The pinned layer is ferromagnetic and has a first magnetization. The current confined layer has at least one channel in an insulating matrix. The channel(s) are conductive and extend through the current confined layer. The free layer is ferromagnetic and has a second magnetization. The pinned layer, the free layer, and the current confined layer are configured to allow the magnetization of the free layer to be switched using spin transfer. The magnetic element may also include other layers, including layers for spin valve(s), spin tunneling junction(s), dual spin valve(s), dual spin tunneling junction(s), and dual spin valve/tunnel structure(s).
    Type: Application
    Filed: September 19, 2003
    Publication date: March 24, 2005
    Inventors: Yiming Huai, Paul Nguyen, Frank Albert
  • Publication number: 20050045913
    Abstract: A method and system for providing a magnetic element capable of storing multiple bits is disclosed. The method and system include providing first pinned layer, a first nonmagnetic layer, a first free layer, a connecting layer, a second pinned layer, a second nonmagetic layer and a second free layer. The first pinned layer is ferromagnetic and has a first pinned layer magnetization pinned in a first direction. The first nonmagnetic layer resides between the first pinned layer and the first free layer. The first free layer being ferromagnetic and has a first free layer magnetization. The second pinned layer is ferromagnetic and has a second pinned layer magnetization pinned in a second direction. The connecting layer resides between the second pinned layer and the first free layer. The second nonmagnetic layer resides between the second pinned layer and the second free layer. The second free layer being ferromagnetic and having a second free layer magnetization.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 3, 2005
    Inventors: Paul Nguyen, Yiming Huai
  • Publication number: 20050041342
    Abstract: A method and system for providing a magnetic element is disclosed. The method and system include providing a ferromagnetic pinned layer, providing a free layer, and providing a spacer layer between the pinned layer and the free layer. The pinned layer and free layer are ferromagnetic and have a pinned layer magnetization and a free layer magnetization, respectively. The spacer layer is nonmagnetic. In one aspect, the free layer is configured to have an increased magnetic damping constant. In another aspect, the method and system also include providing a second pinned layer and a second spacer layer between the free layer and the second pinned layer. In this aspect, the first pinned layer and/or the second pinned layer are configured such that a forward torque and a reflected torque due to a current driven through the magnetic element in a current-perpendicular-to-plane configuration are substantially equal and opposite.
    Type: Application
    Filed: May 5, 2004
    Publication date: February 24, 2005
    Inventors: Yiming Huai, Paul Nguyen
  • Patent number: 6801206
    Abstract: A method and apparatus for providing a computer system having a plurality of logical partitions with a virtual operator panel is disclosed. The method and apparatus include displaying a plurality of operator panels on a single console corresponding to each of the logical partitions, and providing a buffer for each logical partition. The status codes from each of the logical partitions are then written directly to the corresponding buffer. To display the status codes of one of the logical partitions, the status code from the buffer corresponding the logical partition is read and sent to the corresponding operator panel for display.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: October 5, 2004
    Assignee: International Business Machines Corporation
    Inventors: Joshua Nathan Poimboeuf, Paul Nguyen, Sayileela Nulu, Steve Xu
  • Publication number: 20040097660
    Abstract: Hydrogenated copolymers of an unsaturated nitrile, butadiene and isoprene, wherein the molar ratio of butadiene to isoprene is less than 3:1, display valuable low temperature properties.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 20, 2004
    Inventors: Harald Bender, Rudolf Casper, Hans Rafael Winkelbach, Hans Christian Strauch, Paul Nguyen, Sharon X. Guo, Janet Gamlin, Rotraud Casper
  • Patent number: 6683136
    Abstract: The present invention provides a process of hydrogenating a nitrile copolymer rubber, which comprises subjecting the copolymer to hydrogenation in the presence of a hydrogenation catalyst, a co-catalyst, and a proton acceptor that is non-coordinating with the metal-complex catalyst.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: January 27, 2004
    Assignee: Bayer Inc.
    Inventors: Sharon X. Guo, Paul Nguyen
  • Patent number: 6646059
    Abstract: A process is provided for the removal of iron- and rhodium-containing residues from a solution of hydrogenated nitrile rubber. The process utilizes an ion-exchange resin having thiourea functional groups. Further, the resin is both macroporour and monodispersed. The process removes both rhodium and iron from viscous rubber solutions. In a preferred embodiment, the process is carried out in an ion-exchange column.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: November 11, 2003
    Assignee: Bayer Inc.
    Inventors: Paul Nguyen, Harald Bender, Gilles Arsenault, Ignazio Spadola, Franz-Josef Mersmann
  • Patent number: 6602962
    Abstract: Disclosed herein is a process for the production of hydrogenated nitrile rubber. The appearance of corrosion in the plant equipment in which hydrogenated nitrile rubber is produced is due to the unexpected presence of relatively large amounts of HCl, generated, surprisingly, by the hydro-dehalogenation of the monochlorobenzene solvent under the reaction conditions. The addition of a compatible weakly basic additive, such as Epoxidized Soy Bean Oil (ESBO), to the reaction mixture has alleviated this serious problem.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 5, 2003
    Assignee: Bayer Inc.
    Inventors: Paul Nguyen, Carl Walter Von Hellens
  • Patent number: 6516367
    Abstract: A method, system and computer program product are provided for detecting the presence of devices, particularly hot plug devices, connected to a bus both during start-up of a computer system and while the system is running. At start-up, and periodically thereafter, all possible device connections are polled by microprocessors, called sub-bus controllers, which include logic for generating a map of components present on each bus. Each map is accessible by the master bus controller. During system run-time, periodic polling, may be continuous thereby providing a real time device status map for every available bus connection.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: February 4, 2003
    Assignee: International Business Machines Corporation
    Inventors: Michael Anton Barenys, Douglas Michael Boecker, Joel Gerard Goodwin, Paul Nguyen
  • Publication number: 20020128393
    Abstract: The present invention provides a process of hydrogenating a nitrile copolymer rubber, which comprises subjecting the copolymer to hydrogenation in the presence of a hydrogenation catalyst, a co-catalyst, and a proton acceptor that is non-coordinating with the metal-complex catalyst.
    Type: Application
    Filed: December 19, 2001
    Publication date: September 12, 2002
    Inventors: Sharon X. Guo, Paul Nguyen
  • Publication number: 20020123574
    Abstract: Disclosed herein is a process for the production of hydrogenated nitrile rubber. The appearance of corrosion in the plant equipment in which hydrogenated nitrile rubber is produced is due to the unexpected presence of relatively large amounts of HCl, generated, surprisingly, by the hydro-dehalogenation of the monochlorobenzene solvent under the reaction conditions. The addition of a compatible weakly basic additive, such as Epoxidized Soy Bean Oil (ESBO), to the reaction mixture has alleviated this serious problem.
    Type: Application
    Filed: December 19, 2001
    Publication date: September 5, 2002
    Inventors: Paul Nguyen, Carl Walter Von Hellens
  • Publication number: 20020124151
    Abstract: A method and apparatus for providing a computer system having a plurality of logical partitions with a virtual operator panel is disclosed. The method and apparatus include displaying a plurality of operator panels on a single console corresponding to each of the logical partitions, and providing a buffer for each logical partition. The status codes from each of the logical partitions are then written directly to the corresponding buffer. To display the status codes of one of the logical partitions, the status code from the buffer corresponding the logical partition is read and sent to the corresponding operator panel for display.
    Type: Application
    Filed: March 1, 2001
    Publication date: September 5, 2002
    Applicant: International Business Machines Corporation
    Inventors: Joshua Nathan Poimboeuf, Paul Nguyen, Sayileela Nulu, Steve Xu
  • Publication number: 20020120071
    Abstract: A process is provided for the removal of iron- and rhodium-containing residues from a solution of hydrogenated nitrile rubber. The process utilizes an ion-exchange resin having thiourea functional groups. Further, the resin is both macroporour and monodispersed. The process removes both rhodium and iron from viscous rubber solutions. In a preferred embodiment, the process is carried out in an ion-exchange column.
    Type: Application
    Filed: November 2, 2001
    Publication date: August 29, 2002
    Inventors: Paul Nguyen, Harald Bender, Gilles Arsenault, Ignazio Spadola, Franz-Josef Mersmann