Patents by Inventor Zhaohui Fan

Zhaohui Fan 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: 10845324
    Abstract: Electrochemical sensors for the detection of select analytes are provided. The electrochemical sensors include a barrier layer having a substantially uniformed thickness disposed between a sensing layer and an ion exchange membrane. The barrier layer includes a two-dimensional nanomaterial. The barrier layer has a thickness of less than or equal to about 1 nm. The sensing layer has a thickness of less than or equal to about 10 nm. The sensing layer generates ions in response to select analytes. The barrier layer allows the generation ions to pass therethrough and travel into the ion exchange membrane. The barrier layer acts as a physical barrier to contaminants and larger molecules.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 24, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Girish Kulkarni, Xudong Fan, Zhaohui Zhong, Ayush Pandey, Wenzhe Zang
  • Publication number: 20200277035
    Abstract: An object of the present disclosure is to provide a gas-electric parallel-serial hybrid marine power train system with LNG cooling, including a gas engine, an electric generator, a motor, a natural gas storage supplier. The gas engine is connected to the shaft belt motor through a gearbox, the motor is connected to the gearbox through a clutch, propellers are connected to the motor, and an engine cooling system and a fuel cell cooling system are connected to an LNG vaporization heat exchange apparatus; the electrical energy sources are the fuel cell, the electric generator and a storage battery. The arrangement of multiple power sources according to the present disclosure can meet ship requirements under various environments and circumstances, improve operating efficiencies of the gas engine, the shaft belt motor and the electric motor.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 3, 2020
    Inventors: Liyun Fan, Zhaohui Xiao, Chao Xu, Yaowen Lu, Hengxi Zhang
  • Publication number: 20200200699
    Abstract: Electrochemical sensors for the detection of select analytes are provided. The electrochemical sensors include a barrier layer having a substantially uniformed thickness disposed between a sensing layer and an ion exchange membrane. The barrier layer includes a two-dimensional nanomaterial. The barrier layer has a thickness of less than or equal to about 1 nm. The sensing layer has a thickness of less than or equal to about 10 nm. The sensing layer generates ions in response to select analytes. The barrier layer allows the generation ions to pass therethrough and travel into the ion exchange membrane. The barrier layer acts as a physical barrier to contaminants and larger molecules.
    Type: Application
    Filed: August 11, 2017
    Publication date: June 25, 2020
    Inventors: Girish KULKARNI, Xudong FAN, Zhaohui ZHONG, Ayush PANDEY, Wenzhe ZANG
  • Patent number: 10151025
    Abstract: The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity Helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 11, 2018
    Assignee: Seagate Technology LLC
    Inventors: Christopher Loren Platt, Zhaohui Fan, Samuel Lewis Tanaka, Chun Wai Joseph Tong, Thomas Larson Greenberg, Xiaoding Ma
  • Publication number: 20180350399
    Abstract: An apparatus is disclosed. The apparatus includes a storage layer and a write layer. The storage layer is magnetic and has an L10 crystalline structure. The write layer is directly disposed over the storage layer. The write layer is magnetic and has a crystalline structure that is different from the L10 crystalline structure of the storage layer.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 6, 2018
    Inventors: Antonio Javier ZAMBANO, ZhaoHui FAN, Xiaoding MA, Connie Chunling LIU, Jerry Kueirweei CHOUR
  • Patent number: 10109465
    Abstract: A vapor deposition source that includes a substantially vertical plate to which first and second filament posts are coupled. The vapor deposition source also includes a filament having a first end and a second end. The filament provides a substantially concentric source of electrons. The first end of the filament is connected to the first filament post and the second end of the filament is connected to the second filament post. The first end of the filament is substantially vertically aligned with the second end of the filament when the filament is connected to the first and second posts.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 23, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Romulo Ata, ZhaoHui Fan, Samuel Tanaka, Christopher Platt, Xiaoding Ma
  • Patent number: 9984714
    Abstract: An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: May 29, 2018
    Assignee: Seagate Technology LLC
    Inventors: Paul M. Jones, Timothy J. Klemmer, Ruoxi Yang, Martin Giles Blaber, Xiaoding Ma, ZhaoHui Fan, Michael J. Stirniman, Yang Yang, XiaoPing Yan, Fujian Huang, Emil John Catoc Esmenda, Emir R. Kazazic, Florin Zavaliche, Hongbo Wang, Huan H. Tang, Kyoumarss Damavandi
  • Patent number: 9984713
    Abstract: An apparatus is disclosed. The apparatus includes a storage layer, a first write layer, and a second write layer. The first write layer is disposed over the storage layer. The second write layer is disposed over the first write layer. The anisotropy field and magnetization associated with the second write layer at writing temperature is greater than anisotropy field and magnetization associated with the first write layer at the writing temperature.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: May 29, 2018
    Assignee: Seagate Technology LLC
    Inventors: Antonio Javier Zambano, Connie Chunling Liu, Xiaoding Ma, ZhaoHui Fan, Jerry Kueirweei Chour
  • Publication number: 20170365448
    Abstract: A vapor deposition source that includes a substantially vertical plate to which first and second filament posts are coupled. The vapor deposition source also includes a filament having a first end and a second end. The filament provides a substantially concentric source of electrons. The first end of the filament is connected to the first filament post and the second end of the filament is connected to the second filament post. The first end of the filament is substantially vertically aligned with the second end of the filament when the filament is connected to the first and second posts.
    Type: Application
    Filed: November 20, 2015
    Publication date: December 21, 2017
    Inventors: Romulo Ata, ZhaoHui Fan, Samuel Tanaka, Christopher Platt, Xiaoding Ma
  • Patent number: 9842616
    Abstract: Provided herein is an apparatus including a head over-coat and a depleted region in the head over-coat. A media over-coat is deposited in the depleted region. A near field transducer is adjacent to the head over-coat, wherein the near field transducer combusts the deposited media over-coat.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 12, 2017
    Assignee: Segate Technology LLC
    Inventors: Florin Zavaliche, Paul M. Jones, Jan-Ulrich Thiele, ZhaoHui Fan, Bing Zhang, Emil John C. Esmenda, XiaoPing Yan, Xiaoding Ma, Fujian Huang, Huan Tang
  • Publication number: 20170316800
    Abstract: An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.
    Type: Application
    Filed: July 12, 2017
    Publication date: November 2, 2017
    Inventors: Paul M. JONES, Timothy J. KLEMMER, Ruoxi YANG, Martin Giles BLABER, Xiaoding MA, ZhaoHui FAN, Michael J. STIRNIMAN, Yang YANG, XiaoPing YAN, Fujian HUANG, Emil John Catoc ESMENDA, Emir R. KAZAZIC, Florin ZAVALICHE, Hongbo WANG, Huan H. TANG, Kyoumarss DAMAVANDI
  • Publication number: 20160035546
    Abstract: The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity Helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: Christopher Loren Platt, Zhaohui Fan, Samuel Lewis Tanaka, Chun Wai Joseph Tong, Thomas Larson Greenberg, Xiaoding Ma
  • Patent number: 9047906
    Abstract: The embodiments disclose a dual-layer magnetic recording structure including a top magnetic layer etched to remove patterned portions of the top magnetic layer and a bottom magnetic layer including portions with altered magnetic properties of molecules to reduce net magnetic moments and including portions of unaltered magnetic properties exchange-coupled through the top magnetic layer.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 2, 2015
    Assignee: Seagate Technology, LLC
    Inventor: Zhaohui Fan
  • Publication number: 20140308439
    Abstract: The embodiments disclose a method of protecting patterned magnetic materials of a stack, including depositing a thin continuous film of an inert material that is inert to the magnetic materials of a patterned stack upon which the thin continuous film is being deposited and forming a thin interim interface layer from the thin continuous film to protect top and sidewall areas of non-etched higher relief magnetic islands and magnetic film etched surfaces of the patterned stack from air exposure damage and damage from contact with backfilled materials.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Inventors: Zhaohui Fan, Yuan Xu, Justin Jia-Jen Hwu, Koichi Wago, David Shiao-Min Kuo
  • Patent number: 8711519
    Abstract: A shallow trench discrete track media structure is fabricated by etching a magnetic recording layer to provide a plurality of discrete magnetic data tracks separated by shallow trenches. Each shallow trench has a trench floor formed at a depth in the magnetic recording layer that is less than the thickness of the magnetic recording layer. Exposed regions of the magnetic recording layer beneath the trench floor are reacted with reactive plasma to diminish the magnetic moment of the exposed regions.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: April 29, 2014
    Assignee: Seagate Technology LLC
    Inventors: Zhaohui Fan, David Kuo
  • Publication number: 20140093745
    Abstract: The embodiments disclose a dual-layer magnetic recording structure including a top magnetic layer etched to remove patterned portions of the top magnetic layer and a bottom magnetic layer including portions with altered magnetic properties of molecules to reduce net magnetic moments and including portions of unaltered magnetic properties exchange-coupled through the top magnetic layer.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: SEAGATE TECHNOLOGY, LCC
    Inventor: Zhaohui Fan
  • Patent number: 8422169
    Abstract: A shallow trench discrete track media structure is fabricated by etching a magnetic recording layer to provide a plurality of discrete magnetic data tracks separated by shallow trenches. Each shallow trench has a trench floor formed at a depth in the magnetic recording layer that is less than the thickness of the magnetic recording layer. Exposed regions of the magnetic recording layer beneath the trench floor are reacted with reactive plasma to diminish the magnetic moment of the exposed regions.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: April 16, 2013
    Assignee: Seagate Technology LLC
    Inventors: Zhaohui Fan, David Kuo
  • Publication number: 20130004736
    Abstract: The embodiments disclose a method of protecting patterned magnetic materials of a stack, including depositing a thin continuous film of an inert material that is inert to the magnetic materials of a patterned stack upon which the thin continuous film is being deposited and forming a thin interim interface layer from the thin continuous film to protect top and sidewall areas of non-etched higher relief magnetic islands and magnetic film etched surfaces of the patterned stack from air exposure damage and damage from contact with backfilled materials.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: SEAGATE TECHNOLOGY, LLC
    Inventors: Zhaohui Fan, Yuan Xu, Justin Jia-Jen Hwu, Koichi Wago, David Shiao-Min Kuo
  • Publication number: 20110141620
    Abstract: A shallow trench discrete track media structure is fabricated by etching a magnetic recording layer to provide a plurality of discrete magnetic data tracks separated by shallow trenches. Each shallow trench has a trench floor formed at a depth in the magnetic recording layer that is less than the thickness of the magnetic recording layer. Exposed regions of the magnetic recording layer beneath the trench floor are reacted with reactive plasma to diminish the magnetic moment of the exposed regions.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 16, 2011
    Applicant: Seagate Technology LLC
    Inventors: Zhaohui Fan, David Kuo
  • Publication number: 20110038082
    Abstract: A magnetic device having a magnetic feature, the magnetic feature including magnetic portions, a stop layer portion on each magnetic portion, and a region of non-magnetic material adjacent to the magnetic portions and the stop layer portions, where the stop layer portions define planar upper boundaries for the magnetic portions and an endpoint in planarization of the magnetic feature.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Applicant: Seagate Technology LLC
    Inventors: Zhaohui Fan, David S. Kuo, Kim Yang Lee