Patents by Inventor Huigao Duan

Huigao Duan 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).

  • Method of writing to an optical data storage medium, method of reading from an optical data storage medium, and optical data storage medium
    Patent number: 9633685
    Abstract: According to embodiments of the present invention, a method of writing to an optical data storage medium is provided. The method includes receiving a plurality of data elements, each data element having one of a plurality of values, wherein each value of the plurality of values is associated with a wavelength, and forming, for each data element, a nanostructure arrangement on the optical data storage medium, the nanostructure arrangement configured to reflect light of the wavelength associated with the value of the data element in response to a light irradiated on the optical data storage medium. According to further embodiments of the present invention, a method of reading from an optical data storage medium and an optical data storage medium are also provided.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 25, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Karthik Kumar, Kwang Wei Joel Yang, Huigao Duan, Mohamed Asbahi
  • Process for creating lithographically-defined plasmonic structures with enhanced Q factors
    Patent number: 9233393
    Abstract: A method for plasmonic structure manufacture and for protecting a plasmonic nanostructure during annealing is provided. The method includes: lithographically forming a plasmonic nanostructure on a substrate; encapsulating the plasmonic nanostructure in high temperature resistant material; annealing the plasmonic nanostructure; and removing the high temperature resistant material to reveal the annealed plasmonic nanostructure.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 12, 2016
    Assignee: Agency for Science, Technology and Research
    Inventors: Joel K. W. Yang, Michel Bosman, Huigao Duan, Karthik Kumar, In Yee Phang
  • METHOD OF WRITING TO AN OPTICAL DATA STORAGE MEDIUM, METHOD OF READING FROM AN OPTICAL DATA STORAGE MEDIUM, AND OPTICAL DATA STORAGE MEDIUM
    Publication number: 20140092718
    Abstract: According to embodiments of the present invention, a method of writing to an optical data storage medium is provided. The method includes receiving a plurality of data elements, each data element having one of a plurality of values, wherein each value of the plurality of values is associated with a wavelength, and forming, for each data element, a nanostructure arrangement on the optical data storage medium, the nanostructure arrangement configured to reflect light of the wavelength associated with the value of the data element in response to a light irradiated on the optical data storage medium. According to further embodiments of the present invention, a method of reading from an optical data storage medium and an optical data storage medium are also provided.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: Agency for Science, Technology and Research
    Inventors: Karthik Kumar, Kwang Wei Joel Yang, Huigao Duan, Mohamed Asbahi
  • PROCESS FOR CREATING LITHOGRAPHICALLY-DEFINED PLASMONIC STRUCTURES WITH ENHANCED Q FACTORS
    Publication number: 20130243947
    Abstract: A method for plasmonic structure manufacture and for protecting a plasmonic nanostructure during annealing is provided. The method includes: lithographically forming a plasmonic nanostructure on a substrate; encapsulating the plasmonic nano structure in high temperature resistant material; annealing the plasmonic nanostructure; and removing the high temperature resistant material to reveal the annealed plasmonic nano structure.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 19, 2013
    Applicant: Agency for Science, Technology and Research
    Inventors: Joel K.W. Yang, Michel Bosman, Huigao Duan, Karthik Kumar, In Yee Phang