Patents by Inventor Deepa Dey

Deepa Dey 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: 9005569
    Abstract: A microstructure that can develop non-conventional and novel physical properties and a method for producing the same are provided. Ethanol is added to a mixture solution produced by adding a surfactant solution to a peroxotitanic acid aqueous solution to produce precipitates, and the precipitates collected from the mixture solution are let dried to produce precursor powders 5. The precursor powders 5 are calcined at a predetermined temperature. Accordingly, a microstructure 2 can be produced which is formed of monophasic Ti4O7 in nano size. The microstructure 2 of monophasic Ti4O7 produced in this fashion can be fine-grained in nano size unlike prior-art crystals.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: April 14, 2015
    Assignee: The University of Tokyo
    Inventors: Shin-ichi Ohkoshi, Deepa Dey, Yoshihide Tsunobuchi, Kazuhito Hashimoto, Hiroko Tokoro, Fumiyoshi Hakoe
  • Publication number: 20120275990
    Abstract: A microstructure that can develop non-conventional and novel physical properties and a method for producing the same are provided. Ethanol is added to a mixture solution produced by adding a surfactant solution to a peroxotitanic acid aqueous solution to produce precipitates, and the precipitates collected from the mixture solution are let dried to produce precursor powders 5. The precursor powders 5 are calcined at a predetermined temperature. Accordingly, a microstructure 2 can be produced which is formed of monophasic Ti4O7 in nano size. The microstructure 2 of monophasic Ti4O7 produced in this fashion can be fine-grained in nano size unlike prior-art crystals.
    Type: Application
    Filed: November 19, 2010
    Publication date: November 1, 2012
    Applicant: The University of Tokyo
    Inventors: Shin-ichi Ohkoshi, Deepa Dey, Yoshihide Tsunobuchi, Kazuhito Hashimoto, Hiroko Tokoro, Fumiyoshi Hakoe
  • Patent number: 7005548
    Abstract: The present invention relates to an economical and environmentally clean process for the preparation of high quality quaternary ammonium tribromides by oxidation of bromide (Br?) in an acidic medium by a biomimetic process involving transition metal ion mediated activation of hydrogen peroxide.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: February 28, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mihir Kanti Choudhuri, Upasana Bora, Sanjay Kumar Dehury, Deepa Dey, Siddhartha Sankar Dhar, Wancydora Kharmawphlang, Boyapati Manoranjan Choudhary, Lakshmi Kantam Mannepalli
  • Publication number: 20040126308
    Abstract: The present invention relates to an economical and environmentally clean process for the preparation of high quality quaternary ammonium tribromides by oxidation of bromide (Br−) in an acidic medium by a biomimetic process involving transition metal ion mediated activation of hydrogen peroxide.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 1, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Mihir Kanti Choudhuri, Upasana Bora, Sanjay Kumar Dehury, Deepa Dey, Siddhartha Sankar Dhar, Wancydora Kharmawphlang, Boyapati Manoranjan Choudhary, Lakshmi Kantam Mannepalli