Patents by Inventor Aiguo Feng

Aiguo Feng 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: 9819304
    Abstract: A portable solar panel system and method includes a support structure, one or more solar panels mounted on the support structure, at least three wheels coupled to the support structure and rotatably supporting the support structure on a surface, a controller, a sunlight monitor coupled to the controller and a tracking drive system coupled to the controller and mechanically linked to at least one of the at least three wheels.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 14, 2017
    Inventor: Aiguo Feng
  • Publication number: 20150207005
    Abstract: A portable solar panel system and method includes a support structure, one or more solar panels mounted on the support structure, at least three wheels coupled to the support structure and rotatably supporting the support structure on a surface, a controller, a sunlight monitor coupled to the controller and a tracking drive system coupled to the controller and mechanically linked to at least one of the at least three wheels.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 23, 2015
    Inventor: Aiguo Feng
  • Patent number: 8372687
    Abstract: A method for forming multiple layers in a single process chamber includes placing a substrate in the process chamber having multiple processing sources and iteratively forming a copper indium gallium selenium (CIGS) including forming multiple relatively thin CIGS layers including forming a copper indium gallium (CIG) layer on the substrate, the CIG layer having a thickness of between less than about 50 angstroms and about 200 angstroms, forming a selenium layer on the CIG layer, the selenium layer having a thickness of between less than about 50 angstroms and about 200 angstroms and heating the substrate, the CIG layer and the selenium layer. A processing chamber system is also disclosed.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: February 12, 2013
    Assignee: Ahbee1, LP
    Inventor: Aiguo Feng
  • Publication number: 20120208314
    Abstract: A method for forming multiple layers in a single process chamber includes placing a substrate in the process chamber having multiple processing sources and iteratively forming a copper indium gallium selenium (CIGS) including forming multiple relatively thin CIGS layers including forming a copper indium gallium (CIG) layer on the substrate, the CIG layer having a thickness of between less than about 50 angstroms and about 200 angstroms, forming a selenium layer on the CIG layer, the selenium layer having a thickness of between less than about 50 angstroms and about 200 angstroms and heating the substrate, the CIG layer and the selenium layer. A processing chamber system is also disclosed.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 16, 2012
    Inventor: Aiguo Feng
  • Patent number: 6861937
    Abstract: An enhanced inductive coil design for use in data storage magnetic disk drives with areal density over 35 Gb/in2, features a double wound twin coil that is able to achieve a yoke length of 15 ?m or less by reducing the insulation spacing between the two coils. The coil further presents improved reliability by reducing the possibility of occurrence of electrical shorting. The coil is made by forming two interleafing conductors on the same layer with a demesne process. A tri-level process is implemented in the layout of the first conductor to ensure that the coil width and spacing are uniform and even, in order for the second conductor to be wound therebetween. A conformal dielectric layer of approximately 0.1 to 0.2 ?m in thickness is deposited between the two conductors and serves as insulation. The two conductors are formed by a copper seed layer plating process that eliminates potential damage to the conductors during production.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 1, 2005
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Aiguo Feng, Dennis Rafferty, Wei Xiong, Yiming Huai
  • Patent number: 6737281
    Abstract: A method of making an inductive transducer having inorganic nonferromagnetic material disposed in an apex region adjacent to a submicron nonferromagnetic gap in a magnetic core. The inorganic nonferromagnetic apex region can be made by chemical etching of a layer of inorganic nonferromagnetic material, deposition of inorganic nonferromagnetic material through a mask that is then lifted-off, or anisotropic etching of a layer of inorganic nonferromagnetic material that is covered by a hardbaked photoriesist mask.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: May 18, 2004
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Xiaozhong Dang, Yingjian Chen, Aiguo Feng
  • Patent number: 6433968
    Abstract: A merged thin film read/write head having a read element having a first shield layer, a second shield layer and a magnetoresistive element disposed between the first and second shield layers, a thin spacer layer of nonmagnetic material formed upon the second shield layer and an inductive write element having a first pole pedestal formed upon the spacer layer and a second pole separated from the pedestal by a gap. The pedestal includes a tapered portion for reducing the formation of pinned magnetic domains in the pedestal and providing improved flux passage. In combination with the thin nonmagnetic spacer layer, the tapered feature of the pedestal eliminates popcorn noise in the read element.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: August 13, 2002
    Assignee: Read-Rite Corporation
    Inventors: Zhupei Shi, Aiguo Feng
  • Patent number: 6282056
    Abstract: The present invention describes a write element for a magnetic recording device that incorporates a second pole pedestal with a tapered shape. This tapered shape substantially reduces side-writing and the second pulse effect, each of which can limit maximum areal densities of information recorded on magnetic media. The present invention further includes a magnetic recording device incorporating a write element with a tapered second pole pedestal within the read/write head. The present invention also includes a method for producing a write element incorporating a tapered second pole pedestal.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: August 28, 2001
    Assignee: Read-Rite Corporation
    Inventors: Aiguo Feng, Zhupei Shi, Bill W. Crue, Jr.
  • Patent number: D590768
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: April 21, 2009
    Assignee: Ahbee 1, L.P.
    Inventors: Aiguo Feng, Ann Koo
  • Patent number: D601087
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: September 29, 2009
    Assignee: Ahbee 1, L.P.
    Inventors: Aiguo Feng, Ann Koo