Patents by Inventor Sunita Darbe

Sunita Darbe 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: 11227964
    Abstract: Luminescent solar concentrators in accordance with various embodiments of the invention can be designed to minimize photon thermalization losses and incomplete light trapping using various components and techniques. Cadmium selenide core, cadmium sulfide shell (CdSe/CdS) quantum dot (“QD”) technology can be implemented in such devices to allow for near-unity QDs and sufficiently large Stokes shifts. Many embodiments of the invention include a luminescent solar concentrator that incorporates CdSe/CdS quantum dot luminophores. In further embodiments, anisotropic luminophore emission can be implemented through metasurface/plasmonic antenna coupling. In several embodiments, red-shifted luminophores are implemented. Additionally, top and bottom spectrally-selective filters, such as but not limited to selectively-reflective metasurface mirrors and polymeric stack filters, can be implemented to enhance the photon collection efficiency.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: January 18, 2022
    Assignees: California Institute of Technology, The Regents of the University of California, The Board of Trustees of the University of Illinois
    Inventors: David R. Needell, Noah Bronstein, Armand P. Alivisatos, Harry A. Atwater, Ralph Nuzzo, Haley Bauser, Ognjen Ilic, Junwen He, Lu Xu, Colton Bukowsky, Sunita Darbe, Zach Nett, Brent Koscher
  • Patent number: 11142553
    Abstract: The present invention relates to a protein composition formed of dry matter of a dispersion in which a protein is dispersed in a stabilizer solution, in which the stabilizer includes at least one type selected from the group consisting of a catechol-based stabilizer, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid, 2,6-di-tert-butyl-p-cresol, 2-tert-butyl-4-methoxyphenol, and 6,6?-di-tert-butyl-4,4?-butylidenedi-m-cresol.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 12, 2021
    Assignees: Spiber Inc., Kojima Industries Corporation
    Inventors: Toshiaki Taniike, Anh Thi Ngoc Dao, Koyuru Nakayama, Junichi Shimokata, Kengo Takeuchi, Abhijit Ravikiran Muley, Sunita Darbe
  • Publication number: 20190352349
    Abstract: The present invention relates to a protein composition formed of dry matter of a dispersion in which a protein is dispersed in a stabilizer solution, in which the stabilizer includes at least one type selected from the group consisting of a catechol-based stabilizer, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid, 2,6-di-tert-butyl-p-cresol, 2-tert-butyl-4-methoxyphenol, and 6,6?-di-tert-butyl-4,4?-butylidenedi-m-cresol.
    Type: Application
    Filed: November 29, 2017
    Publication date: November 21, 2019
    Applicants: Spiber Inc., Kojima Industries Corporation
    Inventors: Toshiaki Taniike, Anh Thi Ngoc Dao, Koyuru Nakayama, Junichi Shimokata, Kengo Takeuchi, Abhijit Ravikiran Muley, Sunita Darbe
  • Publication number: 20150207009
    Abstract: The present invention provides photovoltaic devices that comprise multiple bandgap cell arrays in combination with spectrum splitting optics. The spectrum splitting optics include one or more optical spectrum splitting modules that include two or more optical splitting, diffractive elements that are optically in series to successively and diffractively split incident light into segments or slices that are independently directed onto different photovoltaic cell(s) of the array having appropriate bandgap characteristics.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 23, 2015
    Inventors: Matthew D. Escarra, Sunita Darbe, Harry A. Atwater, Rebekah K. Feist, Carrie E. Hofmann, Emily D. Kosten, Michael E. Mills, Narayan Ramesh, James C. Stevens