Patents by Inventor Raymond V. Rivera Virtudazo

Raymond V. Rivera Virtudazo 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).

  • Method for producing hollow nanoparticles comprising hydrothermal treatment
    Patent number: 9527750
    Abstract: Hollow nanoparticles having an average particle size of 30 to 300 nm and each including a shell mainly including calcium silicate.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 27, 2016
    Assignee: NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Masayoshi Fuji, Takashi Shirai, Raymond V. Rivera Virtudazo, Chika Takai
  • HOLLOW NANOPARTICLES AND METHOD FOR PRODUCING SAME
    Publication number: 20140287236
    Abstract: Hollow nanoparticles having an average particle size of 30 to 300 nm and each including a shell mainly including calcium silicate.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 25, 2014
    Inventors: Masayoshi Fuji, Takashi Shirai, Raymond V. Rivera Virtudazo, Chika Takai