Patents by Inventor Bruce CHENG

Bruce CHENG 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).

  • SILICON-CARBON COMPOSITE FIBER
    Publication number: 20240088351
    Abstract: A composite fiber includes a porous silicon phase including elemental silicon and a porous carbon phase including elemental carbon. The silicon phase and the carbon phase form an intertwined network structure in the composite fiber such that each of the silicon phase and the carbon phase is interconnected and continuous throughout the composite fiber. The silicon phase and the carbon phase together constitute at least 50 wt % of the composite fiber.
    Type: Application
    Filed: September 2, 2022
    Publication date: March 14, 2024
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Wenbo CHENG, Adam KELSALL, Chad D. CANNAN
  • CLEANING HEAD FOR A SURFACE TREATMENT APPARATUS HAVING ONE OR MORE STABILIZERS AND SURFACE TREATMENT APPARATUS HAVING THE SAME
    Publication number: 20200085267
    Abstract: An example of a surface cleaning head may include a main body, a neck pivotally coupled to the main body, a stabilizer, and a linkage pivotally coupled to the main body and the stabilizer. The linkage may be configured to cause the stabilizer to transition between an extended position and a retracted position in response to a pivotal movement of the neck.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 19, 2020
    Inventors: Jason B. THORNE, Kai XU, Bruce CHENG, Ian LIU, AiMing XU, Wenxiu GAO, Andre D. BROWN, Samuel Emrys JAMES, Jordan RIDGLEY, Nicholas SARDAR, Christopher P. PINCHES, David S. CLARE, Lee M. COTTRELL
  • Image forming apparatus and method for controlling developing bias voltage
    Patent number: 7991311
    Abstract: The present invention provides a method and apparatus for forming an image. A controller manages a charger and a developing bias voltage to increase an absolute value of the charging voltage to an image-bearing member and an absolute value of a developing bias voltage to a developer-bearing member to predetermined values in a plurality of steps. The controller controls the developing bias voltage applied to the developer-bearing member; wherein the following relation holds in each of the plurality of steps: |VD|>|Vi|, where VD represents a developing bias voltage applied to the developer-bearing member and Vi represents a charged potential of the image-bearing member. This invention is especially useful for mono-component development using DC voltage as a development driving mechanism.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: August 2, 2011
    Assignee: Aetas Technology Incorporated
    Inventors: Eric Chun-Wei Shih, Bruce Cheng-Chih Chen, Dianne Tan-Feng Tsai
  • Image forming apparatus and method for controling developing bias voltage
    Publication number: 20080101808
    Abstract: The present invention provides a method and apparatus for forming an image. A controller manages a charger and a developing bias voltage to increase an absolute value of the charging voltage to an image-bearing member and an absolute value of a developing bias voltage to a developer-bearing member to predetermined values in a plurality of steps. The controller controls the developing bias voltage applied to the developer-bearing member; wherein the following relation holds in each of the plurality of steps: |VD|>|Vi|, where VD represents a developing bias voltage applied to the developer-bearing member and Vi represents a charged potential of the image-bearing member. This invention is especially useful for mono-component development using DC voltage as a development driving mechanism.
    Type: Application
    Filed: October 26, 2006
    Publication date: May 1, 2008
    Inventors: Eric Chun-Wei Shih, Bruce Cheng-Chih Chen, Dianne Tan-Feng Tsai