Patents by Inventor Cong-Duan Vo

Cong-Duan Vo 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: 11881543
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Publication number: 20230382757
    Abstract: The present invention provides the use of a lead (IV) containing compound to prepare a lead chalcogenide nanocrystal and a method for producing broadband lead chalcogenide nanocrystals in a low cost, size-controllable and scalable method, the method comprising contacting a lead (IV) containing compound with an organic acid and a chalcogen-containing reagent.
    Type: Application
    Filed: September 24, 2021
    Publication date: November 30, 2023
    Inventors: Hao Pang, Cong-Duan Vo, Jie Li
  • Publication number: 20230128324
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Application
    Filed: December 27, 2022
    Publication date: April 27, 2023
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Patent number: 11552223
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 10, 2023
    Assignee: Nanoco Technologies, Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Patent number: 11335834
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 17, 2022
    Assignee: Nanoco Technologies, Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Publication number: 20210288229
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Patent number: 10941338
    Abstract: Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 9, 2021
    Assignee: Nanoco Technologies Ltd.
    Inventors: Amilcar Pillay Narrainen, Cong-Duan Vo, Imad Naasani, Abu Mohammad Imroz Ali
  • Patent number: 10329479
    Abstract: The surfaces of nanoparticles (QDs) are modified with amphiphilic macromolecules, for example, amphiphilic copolymers. The surface modification renders the QDs more compatible with oxygen-excluding matrices, such as epoxy resin, polyurethane resin, polyester resins or any hydrophilic inorganic/organic hybrid resin such as (meth)acrylate-functionalized polyhedral oligomeric silsesquioxane (POSS).
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 25, 2019
    Assignee: Nanoco Technologies Ltd.
    Inventors: Cong-Duan Vo, Hao Pang, Imad Naasani
  • Publication number: 20190177609
    Abstract: Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Amilcar Pillay Narrainen, Cong-Duan Vo, Imad Naasani, Abu Mohammad Imroz Ali
  • Patent number: 10246633
    Abstract: Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 2, 2019
    Assignee: Nanoco Technologies Ltd.
    Inventors: Amilcar Pillay Narrainen, Cong-Duan Vo, Imad Naasani, Abu Mohammad Imroz Ali
  • Publication number: 20180226548
    Abstract: The addition of a chain transfer agent (CTA) or a reversible-addition fragmentation chain transfer agent (RAFT CTA) such as (2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid) during the formation of quantum dot polymer films yields films characterized by high and stable quantum yields.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Inventors: Cong-Duan Vo, Imad Naasani
  • Patent number: 9966508
    Abstract: The addition of a chain transfer agent (CTA) or a reversible-addition fragmentation chain transfer agent (RAFT CTA) such as (2-(dodecyl-thiocarbonothioylthio)-2-methylpropionic acid) during the formation of quantum dot polymer films yields films characterized by high and stable quantum yields.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 8, 2018
    Assignee: Nanoco Technologies Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani
  • Publication number: 20180072857
    Abstract: A thin silazane coating cured with short-wavelength UV radiation is highly transparent, exhibits good oxygen-barrier properties, and does minimal damage to quantum dots in a quantum dot-containing film.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Inventors: Nigel Pickett, Cong-Duan Vo
  • Publication number: 20180057735
    Abstract: The surfaces of nanoparticles (QDs) are modified with amphiphilic macromolecules, for example, amphiphilic copolymers. The surface modification renders the QDs more compatible with oxygen-excluding matrices, such as epoxy resin, polyurethane resin, polyester resins or any hydrophilic inorganic/organic hybrid resin such as (meth)acrylate-functionalized polyhedral oligomeric silsesquioxane (POSS).
    Type: Application
    Filed: November 7, 2017
    Publication date: March 1, 2018
    Inventors: Cong-Duan Vo, Hao Pang, Imad Naasani
  • Patent number: 9840665
    Abstract: Multi-phase polymer films of quantum dots (QDs) and their use in light emitting devices (LEDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 12, 2017
    Assignee: Nanoco Technologies Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen, Yien Ta, Emma Cherie Hogarth, Alexandra Shannon, Ross Jalmari Mera-Pirttijarvi, Elliot Stuart Poucher
  • Publication number: 20170292070
    Abstract: Multi-phase polymer films of quantum dots (QDs) and their use in light emitting devices (LEDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 12, 2017
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen, Yien TA, Emma Cherie Hogarth, Alexandra Shannon, Ross Jalmari Mera-Pirttijarvi, Elliot Stuart Poucher
  • Publication number: 20170279013
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Application
    Filed: June 9, 2017
    Publication date: September 28, 2017
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen
  • Publication number: 20170233644
    Abstract: Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 17, 2017
    Inventors: Amilcar Pillay Narrainen, Cong-Duan Vo, Imad Naasani, Abu Mohammad Imroz Ali
  • Patent number: 9708532
    Abstract: Multi-phase polymer films of quantum dots (QDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: July 18, 2017
    Assignee: Nanoco Technologies Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen, Yien Ta, Emma Cherie Hogarth, Alexandra Shannon, Ross Jalmari Mera-Pirttijarvi, Elliot Stuart Poucher
  • Patent number: 9680068
    Abstract: Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 13, 2017
    Assignee: Nanaco Technologies Ltd.
    Inventors: Cong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen