Patents by Inventor Harshil Narendra Raval

Harshil Narendra Raval 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: 8536885
    Abstract: A method for determining ionizing radiation including applying a constant voltage across an organic semiconducting material sensor prior to and after exposure of the sensor to the ionizing radiation; measuring and converting the current passing through the sensor proportional to the conductivity or resistivity of the sensor which in turn is proportional to the ionizing radiation in the sensor, into a proportional analog voltage value; and comparing the value obtained prior to and after exposure of the sensor to the ionizing radiation and computing the ionizing radiation based on the change in the value. An electronic device for determining ionizing radiation including an organic semiconductor resistor, a constant voltage source, and to a current to voltage converter, an analog to digital converter, and a microprocessor.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 17, 2013
    Assignee: Indian Institute of Technology, Bombay
    Inventors: Harshil Narendra Raval, Shree Prakash Tiwari, Ramesh Raju Navan, Ramgopal Valipe Rao, Anil Kumar
  • Publication number: 20110089959
    Abstract: A method and device for determining ionizing radiation. The method for determining ionizing radiation comprises the steps of applying a constant voltage across an organic semiconducting material sensor prior to and after exposure of the sensor to the ionizing radiation; measuring and converting the current passing through the sensor proportional to the conductivity or resistivity of the sensor which in turn is proportional to the ionizing radiation in the sensor, into a proportional analog voltage value; and if desired converting the analog voltage value into digital value; and comparing the analog/digital values obtained prior to and after exposure of the sensor to the ionizing radiation and computing the ionizing radiation based on the change in the analog/digital values.
    Type: Application
    Filed: September 9, 2009
    Publication date: April 21, 2011
    Inventors: Harshil Narendra Raval, Shree Prakash Tiwari, Ramesh Raju Navan, Ramgopal Valipe Rao, Anil Kumar