Patents by Inventor Sundeep Kumar Shawan

Sundeep Kumar Shawan 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).

  • Recording/playback apparatus, recording/playback method, program, and storage medium
    Patent number: 7186793
    Abstract: A copolymer of benzene and substituted benzene, particularly anthracene is disclosed. The copolymer is soluble in common organic solvents like chloroform, methylene chloride, benzene, toluene, dimethylformamide, N-methyl pyrrolidinone etc unlike the parent polymer poly-p-phenylene which is highly insoluble in organic solvents. The copolymer is thermally stable up to 380° C. and environmentally stable for at least 1 year. The copolymer is capable of being thermally evaporated useful for electroluminescent devices. The copolymer shows electroluminescene and can be used in the fabrication of an organic light emitting diode device.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: March 6, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sundeep Kumar Shawan, Kamalasasan Narayanan Modeeparampu, Sukhwant Singh Bawa
  • Copolymer of benzene and substituted benzene
    Publication number: 20040192883
    Abstract: A copolymer of benzene and substituted benzene, particularly anthracene is disclosed. The copolymer is soluble in common organic solvents like chloroform, methylene chloride, benzene, toluene, dimethylformamide, N-methyl pyrrolidinone etc unlike the parent polymer poly-p-phenylene which is highly insoluble in organic solvents. The copolymer is thermally stable up to 380° C. and environmentally stable for at least 1 year. The copolymer is capable of being thermally evaporated useful for elecroluminescent devices. The copolymer shows electroluminescene and can be used in the fabrication of an organic light emitting diode device.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Sundeep Kumar Shawan, Kamalasasan Narayanan Modeeparampu, Sukhwant Singh Bawa