Patents by Inventor Tong Zhao

Tong Zhao 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: 20160308361
    Abstract: A power generation system is provided. The system includes a bus, at least two converters, an energy-type energy storage unit (ES), a power-type energy storage unit (PS) and a controller. The ES and the PS are coupled in parallel to the bus through corresponding converters of the at least two converters. The controller is configured to control the ES and the PS through the corresponding converters in at least two conditions during a charging mode and a discharging mode: when a power for the ES and PS is below a power threshold, control the power to flow between the ES and the bus; and when the power is above the power threshold, control a part of the power to flow between the ES and the bus and another part of the power to flow between the PS and the bus. And a method for generating power is also provided.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 20, 2016
    Inventors: Tong ZHAO, Rong LI, Xu FU, Bernard P. Landa
  • Publication number: 20160284365
    Abstract: Devices that include a near field transducer (NFT), the NFT having at least one external surface; and at least one multilayer adhesion layer positioned on at least a portion of the at least one external surface, the multilayer adhesion layer including a first layer and a second layer, with the second layer being in contact with the portion of the at least one external surface of the NFT, the first layer including: yttrium (Y), scandium (Sc), zirconium (Zr), hafnium (Hf), silicon (Si), boron (B), tantalum (Ta), barium (Ba), aluminum (Al), titanium (Ti), niobium (Nb), calcium (Ca), beryllium (Be), strontium (Sr), magnesium (Mg), lithium (Li), or combinations thereof; and the second layer including: lanthanum (La), boron (B), lutetium (Lu), aluminum (Al), deuterium (D), cerium (Ce), uranium (U), praseodymium (Pr), yttrium (Y), silicon (Si), iridium (Ir), carbon (C), thorium (Th), scandium (Sc), titanium (Ti), vanadium (V), phosphorus (P), barium (Ba), europium (Eu), or combinations thereof.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 29, 2016
    Inventors: Justin Brons, Tong Zhao, Yuhang Cheng, Dimitar V. Dimitrov
  • Publication number: 20160275974
    Abstract: Devices having an air bearing surface (ABS), the devices include a write pole; a near field transducer (NFT) including a peg and a disc, wherein the peg is at the ABS of the device; an overcoat, the overcoat including a low surface energy layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 22, 2016
    Inventors: Yuhang Cheng, Michael Seigler, Scott Franzen, Tong Zhao, Xiaoyue Huang, Steven C. Riemer, Robert Anthony Fernandez, Douglas H. Cole
  • Publication number: 20160275979
    Abstract: Devices having an air bearing surface (ABS), the devices including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg is at the ABS of the device; a heat sink positioned adjacent the disc of the NFT; a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 22, 2016
    Inventors: Sarbeswar Sahoo, Martin Blaber, Hui Brickner, Tong Zhao, Yuhang Cheng, John Duda, Tae-Woo Lee
  • Publication number: 20160273139
    Abstract: A method for producing a fluffy temperature regulating warmth retention material and the fluffy temperature regulating warmth retention material produced therefrom are disclosed. The method comprises: selecting a low melting point fiber and an additional fiber; carding to form a single web; spray coating a phase change material along at least part of the length of a surface of the single web; lapping layer by layer of the single web; and performing a heat setting reinforcement to form the warmth retention material. According to the present invention, a fluffy temperature regulating warmth retention material comprising an appropriate ratio of a phase change material may be obtained and the material exhibits a satisfactory temperature regulating effect, and meanwhile, it can maintain, to the full extent, or is close to, the original filling power and soft hand feeling where no phase change material is incorporated.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 22, 2016
    Inventors: Feng Xu, Guo Tong Zhao, Xiaoshuan Fu, Hong Bing Xiang, Yu Ge
  • Publication number: 20160275972
    Abstract: Devices having an air bearing surface (ABS) and including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg includes a rear peg portion and a peg tip, the rear peg portion and the peg tip are different materials and the peg tip includes: one or more metals; one or more nanoparticles comprising oxides, nitrides, carbides or combinations thereof; one or more conducting oxides, conducting nitrides, conducting bromides, conducting carbides, or combinations thereof; one or more semiconductors; or combinations thereof.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 22, 2016
    Inventors: Tong Zhao, Yuhang Cheng, Martin Giles Blaber, Jie Gong, Edwin F. Rejda, Michael A. Seigler, Seung-Yeul Yang, Michael Kautzky, Yongjun Zhao, Justin Brons, Andrew J. Boyne, Kurt W. Wierman, Scott Franzen
  • Publication number: 20160260448
    Abstract: A device including a near field transducer (NFT); a write pole; at least one dielectric material positioned between the NFT and the write pole; and an adhesion layer positioned between the NFT and the at least one dielectric material.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 8, 2016
    Inventors: Tong Zhao, Meng Zhu, Xiaoyue Huang, Michael C. Kautzky
  • Patent number: 9437812
    Abstract: A method of fabricating a TMR sensor that includes a free layer having at least one B-containing (BC) layer made of CoFeB, CoFeBM, CoB, CoBM, or CoBLM, and a plurality of non-B containing (NBC) layers made of CoFe, CoFeM, or CoFeLM is disclosed where L and M are one of Ni, Ta, Ti, W, Zr, Hf, Tb, or Nb. In every embodiment, a NBC layer contacts the tunnel barrier and NBC layers each with a thickness from 2 to 8 Angstroms are formed in alternating fashion with one or more BC layers each 10 to 80 Angstroms thick. Total free layer thickness is <100 Angstroms. The TMR sensor may be annealed with a one step or two step process. The free layer configuration described herein enables a significant noise reduction (SNR enhancement) while realizing a high TMR ratio, low magnetostriction, low RA, and low Hc values.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 6, 2016
    Assignee: Headway Technologies, Inc.
    Inventors: Tong Zhao, Hui-Chuan Wang, Yu-Chen Zhou, Min Li, Kunliang Zhang
  • Publication number: 20160210989
    Abstract: A method including depositing a plasmonic material at a temperature of at least 150° C.; and forming at least a peg of a near field transducer (NFT) from the deposited plasmonic material.
    Type: Application
    Filed: December 17, 2015
    Publication date: July 21, 2016
    Inventors: Sarbeswar Sahoo, Tong Zhao, Michael C. Kautzky
  • Publication number: 20160159244
    Abstract: An energy management system comprises a first electricity transformer with one or more first leg circuit(s), a second electricity transformer with one or more second leg circuit(s), and a control device. One or more first leg circuit(s) is (are) coupled to an energy-type supply, and one or more second leg circuit(s) is (are) coupled to a power-type supply. The control device will control the first and second electricity transformers operating under at least one of two conditions when a traction device is under driving mode.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 9, 2016
    Inventors: Jinping GAO, Hai QIU, Tong ZHAO, Fei XU, Hongwu SHE
  • Publication number: 20160163336
    Abstract: Devices that include a near field transducer (NFT), the NFT including a peg having five surfaces, the peg including a first material, the first material including gold (Au), silver (Ag), aluminum (Al), copper (Cu), ruthenium (Ru), rhodium (Rh), iridium (Ir), or combinations thereof; an overlying structure; and at least one intermixing layer, positioned between the peg and the overlying structure, the at least one intermixing layer positioned on at least one of the five surfaces of the peg, the intermixing layer including at least the first material and a second material.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 9, 2016
    Inventors: Yuhang Cheng, Tong Zhao, Michael C. Kautzky, Ed F. Rejda, Kurt W. Wierman, Scott Franzen, Michael Allen Seigler
  • Publication number: 20160133279
    Abstract: Devices that include a near field transducer (NFT) including a crystalline plasmonic material having crystal grains and grain boundaries; and nanoparticles disposed in the crystal grains, on the grain boundaries, or some combination thereof, wherein the nanoparticles are oxides of, lanthanum (La), barium (Ba), strontium (Sr), erbium (Er), hafnium (Hf), germanium (Ge), or combinations thereof; nitrides of zirconium (Zr), niobium (Nb), or combinations thereof; or carbides of silicon (Si), aluminum (Al), boron (B), zirconium (Zr), tungsten (W), titanium (Ti), niobium (Nb), or combinations thereof.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Inventors: Tong Zhao, Justin Brons, Steven C. Riemer, Michael C. Kautzky, Xiaoyue Huang, Sarbeswar Sahoo
  • Publication number: 20160133280
    Abstract: Devices that include a write pole; a near field transducer (NFT) that includes a peg and a disk, wherein the peg is at the ABS of the device; and a diffusion barrier layer positioned between the write pole and the peg of the NFT, the diffusion barrier layer including metals, nitrides, oxides, carbides, silicides, or amorphous material.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Inventors: Yuhang Cheng, Scott Franzen, Michael Seigler, James Wessel, Tong Zhao, John Duda, Sarbeswar Sahoo, Hui Brickner, Michael Kautzky
  • Publication number: 20160133288
    Abstract: Devices having an air bearing surface (ABS), the device including a near field transducer, the near field transducer having a peg and a disc, the peg having a region adjacent the ABS, the peg including a plasmonic material selected from gold (Au), silver (Ag), copper (Cu), ruthenium (Ru), rhodium (Rh), aluminum (Al), or combinations thereof; and at least one other secondary atom selected from germanium (Ge), tellurium (Te), aluminum (Al), antimony (Sb), tin (Sn), mercury (Hg), indium (In), zinc (Zn), iron (Fe), copper (Cu), manganese (Mn), silver (Ag), chromium (Cr), cobalt (Co), and combinations thereof, wherein a concentration of the secondary atom is higher at the region of the peg adjacent the ABS than a concentration of the secondary atom throughout the bulk of the peg. Methods of forming NFTs are also disclosed.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Inventors: Tong Zhao, Michael C. Kautzky, Sarbeswar Sahoo, Justin Brons, Jie Gong, Yuhang Cheng
  • Patent number: 9304252
    Abstract: Waveguides that include a top cladding layer made of a material having an index of refraction n4; a core bilayer structure, the core bilayer structure including a lower index core layer having an index of refraction n3; and a higher index core layer having an index of refraction n1, wherein the higher index core layer includes TiO2 and one or more than one of Nb2O5, CeO2, Ta2O5, ZrO2, HfO2, Y2O3, Sc2O3, MgO, Al2O3 and SiO2, wherein the lower index core layer is adjacent the higher index core layer; a bottom cladding layer made of a material having an index of refraction n2, wherein the waveguide is configured with the higher index core layer of the core bilayer structure adjacent the top cladding layer and the lower index core layer of the core bilayer structure adjacent the bottom cladding layer, and wherein n4 is less than n3 and n1, and n2 is less than n3 and n1.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: April 5, 2016
    Assignee: Seagate Technology LLC
    Inventors: Xiaoyue Huang, Michael C. Kautzky, Tong Zhao
  • Patent number: 9305575
    Abstract: Disclosed herein is an apparatus that includes a near field transducer positioned adjacent to an air bearing surface of the apparatus; a first magnetic pole; and a heat sink positioned between the first magnetic pole and the near field transducer, wherein the heat sink includes a first and second portion, with the first portion being adjacent the near field transducer and the second portion being adjacent the first magnetic pole, the first portion including a plasmonic material, and the second portion including a diffusion blocking material.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: April 5, 2016
    Assignee: Seagate Technology LLC
    Inventors: Tong Zhao, Ibro Tabakovic, Michael C. Kautzky, Venkatram Venkatasamy, Jie Gong
  • Patent number: 9281003
    Abstract: A device including a near field transducer (NFT); a write pole; at least one dielectric material positioned between the NFT and the write pole; and an adhesion layer positioned between the NFT and the at least one dielectric material.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 8, 2016
    Assignee: Seagate Technology LLC
    Inventors: Tong Zhao, Meng Zhu, Xiaoyue Huang, Michael C. Kautzky
  • Patent number: 9281002
    Abstract: Disclosed herein are near field transducers (NFTs) that include either silver, copper, or aluminum and one or more secondary elements.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: March 8, 2016
    Assignee: Seagate Technology LLC
    Inventors: Justin Glen Brons, Tong Zhao, Sethuraman Jayashankar, Steve C. Riemer, Michael C. Kautzky
  • Patent number: 9267085
    Abstract: A system for gasification of a solid powder is provided. The system comprises one or more conveying tanks configured to receive a solid powder and one or more solid pumps disposed downstream of and in fluid communication with the one or more respective conveying tanks. The system further comprises a gasifier disposed downstream of and in fluid communication with the one or more solid pumps. A conveyance unit and a method for conveyance and gasification of a solid powder are also presented.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: February 23, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Mingmin Wang, Lishun Hu, Gang Liu, Ke Liu, Zhe Cui, Wei Chen, Jing Lv, Tong Zhao
  • Patent number: 9269380
    Abstract: A device that includes a near field transducer (NFT); at least one cladding layer adjacent the NFT; and a carbon interlayer positioned between the NFT and the at least one cladding layer.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: February 23, 2016
    Assignee: Seagate Technology LLC
    Inventors: Justin Glen Brons, Tong Zhao, Xiaoyue Huang, Michael C. Kautzky