Patents by Inventor Saswata Chakraborty

Saswata Chakraborty 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).

  • Publication number: 20190359883
    Abstract: Disclosed are quantum dots and quantum dot articles stabilized by a stabilizing agent of the formula:
    Type: Application
    Filed: March 23, 2017
    Publication date: November 28, 2019
    Inventors: Paul B. ARMSTRONG, Saswata CHAKRABORTY, Michael C. PALAZZOTTO, Guy D. JOLY
  • Publication number: 20190352520
    Abstract: Curable ink compositions include at least one aromatic (meth)acrylate, at least one multifunctional (meth)acrylate with heteroaromatic groups, fused aromatic groups, heteroalkylene groups, or a group containing both heteroalkylene and aromatic groups, and a photoinitiator. The curable ink composition is Inkjet printable, having a viscosity of 30 centipoise or less at a temperature of from room temperature to 35° C., and is free from solvents. The ink composition, when printed and cured has a refractive index of 1.55 or greater, and is optically clear. The cured ink composition, when cured to a thickness of from 1-16 micrometers, has a surface roughness of less than or equal to 5 nanometers.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 21, 2019
    Inventors: Evan L. Schwartz, Claire Hartmann-Thompson, Bryan V. Hunt, Brett J. Sitter, Kelly A. Volp, Saswata Chakraborty, Wayne S. Mahoney, Tabitha A. Silliman
  • Publication number: 20190345378
    Abstract: Disclosed are quantum dots and quantum dot articles stabilized by a fluorochemical copolymer having pendent arsine, stibine or phosphine stabilizing groups; and pendent fluorochemical groups
    Type: Application
    Filed: February 9, 2017
    Publication date: November 14, 2019
    Inventors: Paul B. ARMSTRONG, Saswata CHAKRABORTY, Michael C. PALAZZOTTO
  • Publication number: 20190284469
    Abstract: The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo- or copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.
    Type: Application
    Filed: July 18, 2017
    Publication date: September 19, 2019
    Inventors: Carl A. LASKOWSKI, Saswata CHAKRABORTY, Wayne S. MAHONEY, Guy D. JOLY, Michael C. PALAZZOTTO
  • Publication number: 20190241800
    Abstract: The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo-copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.
    Type: Application
    Filed: July 18, 2017
    Publication date: August 8, 2019
    Inventors: Carl A. LASKOWSKI, Saswata CHAKRABORTY, Wayne S. MAHONEY, Guy D. JOLY, Michael C. PALAZZOTTO
  • Publication number: 20190016085
    Abstract: Article comprising a first microstructured layer comprising a first material, and having first and second opposed major surfaces, the first major surface being a microstructured surface, and the microstructured surafce having peaks and valleys, wherein the peaks are microstructural features each having a height defined by the distance between the peak of the respective microstructural feature and an adjacent valley; and a second layer comprising an adhesive material, and having a first and second opposed major surfaces, the adhesive material comprising a reaction product of a mixture comprising (meth)acrylate and epoxy in the presence of each other, wherein at least a portion of the second major surface of the second layer is directly attached to at least a portion of the first major microstructured surface of the first layer.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 17, 2019
    Inventors: Jeffrey L. Solomon, Saswata Chakraborty, Robert J. Devoe, Wayne S. Mahoney, Eric W. Nelson, Kundapur Raveesh Shenoy
  • Publication number: 20180312747
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing additive of a (meth)acrylate copolymer having pendent phosphine, arsine or stibine groups.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 1, 2018
    Inventors: Saswata Chakraborty, Jason D. Clapper, Michael C. Palazzotto, Guy D. Joly
  • Publication number: 20180208841
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing additive of the formula
    Type: Application
    Filed: September 12, 2016
    Publication date: July 26, 2018
    Inventors: Michael C. Palazzotto, Saswata Chakraborty, Wayne S. Mahoney, Guy D. Joly, Karissa L. Eckert
  • Publication number: 20180208842
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing additive of the formula (I).
    Type: Application
    Filed: August 31, 2016
    Publication date: July 26, 2018
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael C. Palazzotto, Saswata Chakraborty, Wayne S. Mahoney, Guy D. Joly, Karissa L. Eckert