Patents by Inventor Dong He

Dong He 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: 6716969
    Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety (b) at last one SO2C2H4 group which is attached to the chromophore moiety either direcly via the sulphur atom of the SO2C2H4 group or a linking group L; characterized in that at least one SO2C2H4 group is substituted on its terminal carbon atom with at least one Y group wherein Y is —A(CO)R* wherein A is selected from O or S and wherin R′ contains at least one terminal nucleophilic group, such as OH, NH2, SH, COOH, N, NHR1 and NR1R2 wherein R1 and R2 may be the same of different and may be selected from C1-C4 alkyl; and salts therof. Also claimed is a process of manufacture of the compounds herein and products obtainable by the process.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 6, 2004
    Assignee: North Carolina State University
    Inventors: David Malcolm Lewis, Wei Dong He, Taher Iqbal Yousaf, Gilles Yves Maria Fernand Genain
  • Patent number: 6713613
    Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety (b) at least one nitrogen-containing heterocycle (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one oxy- or thio-carbonyl derivative wherein the oxy- or thio-carbonyl derivative is selected from Y wherein Y is —A(CO)R* wherein A is selected from O or S and wherein R* is an organic residue which comprises at least one nucleophilic group, and salts thereof.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: March 30, 2004
    Assignee: North Carolina State University
    Inventors: David Malcolm Lewis, Wei Dong He, Taher Iqbal Yousaf, Gilles Yves Marie Fernand Genain
  • Publication number: 20030146212
    Abstract: The present invention relates to a shipping container. By making improvements on its structure: to add longitudinal members in the base frame, and/or to increase the wave height D between the wave crest and wave trough of the corrugated plate of the side panels, and/or to adopt steel plate in the floor, on the premise of passing ISO test, it provides a container which is lighter in tare weight, less in material consumed and lower in production cost.
    Type: Application
    Filed: July 22, 2002
    Publication date: August 7, 2003
    Inventors: Bo-Liang Mai, Shi-sheng Wang, Si-dong He, Qiao-feng Chen, Gu Yao, Jia-ping Cai
  • Patent number: 6545805
    Abstract: Conventional retroreflection mirrors in the form of right angle prisms are quite sensitive to beam position and beam angle errors. Manufacturing and assembly tolerances are also a cause of concern in conventional devices. Accordingly, the present invention solves these aforementioned problems by providing a retroreflection device comprising: a beam director, preferably in the form of a Wollaston prism; a polarization rotator, preferably in the form of a quarter wave plate; and a flat reflective surface, such as a plane mirror. The device of the present invention is far less sensitive to beam angle alignment and is completely independent of the beam position. The present invention is particularly useful as a beam splitter for directing orthogonally polarized beams of light back along parallel paths in an interleaver apparatus.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: April 8, 2003
    Assignee: JDS Uniphase Corp.
    Inventors: Xue Dong He, Robert R. McLeod, Hong-Wei Mao, Qingdong Guo, Kuochou Tai, Kok-Wai Chang
  • Publication number: 20020171933
    Abstract: Conventional retroreflection mirrors in the form of right angle prisms are quite sensitive to beam position and beam angle errors. Manufacturing and assembly tolerances are also a cause of concern in conventional devices. Accordingly, the present invention solves these aforementioned problems by providing a retroreflection device comprising: a beam director, preferably in the form of a Wollaston prism; a polarization rotator, preferably in the form of a quarter wave plate; and a flat reflective surface, such as a plane mirror. The device of the present invention is far less sensitive to beam angle alignment and is completely independent of the beam position. The present invention is particularly useful as a beam splitter for directing orthogonally polarized beams of light back along parallel paths in an interleaver apparatus.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 21, 2002
    Inventors: Xue Dong He, Robert R. McLeod, Hong-Wei Mao, Qingdong Guo, Kuochou Tai, Kok-Wai Chang
  • Patent number: 5735134
    Abstract: A vapor compression system with set point optimization generates a set of thermodynamic operating parameters such that the system operates with optimum energy efficiency. Based on environmental conditions such as indoor and outdoor temperature as well as thermal load, the set of parameters for steady-state set point is generated. The system also monitors actual system properties in real-time and provides them as feedback to the set point computation module. Based on these actual real-time measurements, a new steady-state set point can be generated to enable the system to continue operating at maximum coefficient of performance upon change in environmental or thermal load requirements.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: April 7, 1998
    Assignee: Massachusetts Institute of Technology
    Inventors: Sheng Liu, Xiang-Dong He