Patents by Inventor Diasuke NAGAO

Diasuke NAGAO 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).

  • MANUFACTURING METHOD FOR CORE-SHELL-TYPE POROUS SILICA PARTICLE
    Publication number: 20200071171
    Abstract: Provided is a method for manufacturing core-shell-type porous silica particles, the method including: a preparation step for preparing an aqueous solution containing non-porous silica particles, a cationic surfactant, a basic catalyst, a hydrophobic part-containing additive, and an alcohol; a shell precursor formation step for adding a silica source to the aqueous solution to form a shell precursor on the surfaces of the non-porous silica particles; and a shell formation step for removing the hydrophobic part-containing additive and the cationic surfactant from the shell precursor to form a porous shell.
    Type: Application
    Filed: February 9, 2017
    Publication date: March 5, 2020
    Applicants: TOHOKU UNIVERSITY, DAICEL CORPORATION
    Inventors: Mikio KONNO, Diasuke NAGAO, Haruyuki ISHII, Arata KANNO