Patents by Inventor Fernando Vallejos-Burgos

Fernando Vallejos-Burgos 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).

  • Graphene nanowindow structure and method for producing highly pure gas
    Patent number: 11278849
    Abstract: A molecular sieve that has high selectivity and enables high-speed molecular permeation is provided. The molecular sieve has a nanowindow formed lacking a portion of carbon atoms in graphene, and one or more heteroatoms substituting for one or more carbon atoms that constitute a rim of this nanowindow, in which an electrostatic field is induced within the nanowindow by the heteroatoms, the rim of the nanowindow is relaxed in cooperation with a permeating molecule having a van der Waals' radius larger than the nanowindow, and the molecular sieve becomes permeable to the permeating molecule.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: March 22, 2022
    Assignees: SHINSHU UNIVERSITY, KOTOBUKI HOLDINGS CO., LTD.
    Inventors: Katsumi Kaneko, Fernando Vallejos-Burgos, Toshio Takagi, Katsuyuki Murata
  • GRAPHENE NANOWINDOW STRUCTURE AND METHOD FOR PRODUCING HIGHLY PURE GAS
    Publication number: 20210060499
    Abstract: A molecular sieve that has high selectivity and enables high-speed molecular permeation is provided. The molecular sieve has a nanowindow formed lacking a portion of carbon atoms in graphene, and one or more heteroatoms substituting for one or more carbon atoms that constitute a rim of this nanowindow, in which an electrostatic field is induced within the nanowindow by the heteroatoms, the rim of the nanowindow is relaxed in cooperation with a permeating molecule having a van der Waals' radius larger than the nanowindow, and the molecular sieve becomes permeable to the permeating molecule.
    Type: Application
    Filed: July 4, 2018
    Publication date: March 4, 2021
    Inventors: Katsumi Kaneko, Fernando Vallejos-Burgos, Toshio Takagi, Katsuyuki Murata