Patents by Inventor Dibyendu Ganguli

Dibyendu Ganguli 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).

  • Process of making rare earth doped optical fiber
    Patent number: 6889528
    Abstract: The present invention discloses a process for making rare earth (RE) doped optical fiber by using RE oxide coated silica nanoparticles as the precursor material, more particularly the method of the present invention involves preparation of stable dispersions (sol) of RE oxide coated silica nanoparticles at ambient temperature and applying a thin coating on the inner surface of silica glass tube following dip coating technique or any other conventional methods, of the said silica sol containing suitable dopants selected from Ge, Al, P, etc.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: May 10, 2005
    Assignees: Council of Scientific & Industrial Research, Bar-Ilan University
    Inventors: Ranjan Sen, Minati Chatterjee, Milan Kanti Naskar, Mrinmay Pal, Mukul Chandra Paul, Shyamal Kumar Bhadra, Kamal Dasgupta, Dibyendu Ganguli, Tarun Bandyopadhyay, Aharon Gedanken
  • PROCESS OF MAKING RARE EARTH DOPED OPTICAL FIBRE
    Publication number: 20040187524
    Abstract: The present invention discloses a process for making rare earth (RE) doped optical fibre by using RE oxide coated silica nanoparticles as the precursor materia, more particularly the method of the present invention involves preparation of stable dispersions (sol) of RE oxide coated silica nanoparticles at ambient temperature and applying a thin coating on the inner surface of silica glass tube following dip coating technique or any other conventional methods, of the said silica sol containing suitable dopants selected from Ge, Al, P, etc.
    Type: Application
    Filed: October 22, 2001
    Publication date: September 30, 2004
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Ranjan Sen, Minati Chatterjee, Milan Kanti Naskar, Mrinmay Pal, Mukul Chandra Paul, Shyamal Kumar Bhadra, Kamal Dasgupta, Dibyendu Ganguli, Tarun Bandyopadhyay, Aharon Gedanken