Patents by Inventor Alireza KAZEMI

Alireza KAZEMI 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: 11552204
    Abstract: An apparatus for light detection includes a light, or photon, detector assembly and a dielectric resonator layer coupled to the detector assembly. The dielectric resonator layer is configured to receive transmission of incident light that is directed into the detector assembly by the dielectric resonator layer. The dielectric resonator layer resonates with a range of wavelengths of the incident light.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 10, 2023
    Assignees: Ohio State Innovation Foundation, THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Sanjay Krishna, Anthony Grbic, Christopher Ball, Theodore Ronningen, Alireza Kazemi, Mohammadamin Ranjbaraskari, Qingyuan Shu
  • Patent number: 11521994
    Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 6, 2022
    Assignee: Ohio State Innovation Foundation
    Inventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore Ronningen, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
  • Publication number: 20210375957
    Abstract: An open circuit voltage photodetector comprises a photovoltaic device including a photovoltaic junction, and a transistor. The photovoltaic device is connected to the gate terminal of the transistor to input an open circuit voltage of the photovoltaic device to the gate terminal. An array of such photodetectors and a readout integrated circuit forms an image sensor. In a photodetection method, an open circuit voltage is generated in a photovoltaic device in response to illumination by incident radiation, and the open circuit voltage is applied to a gate terminal of a transistor to modulate a channel current flowing in a channel of the transistor. A readout electronic circuit may be fabricated with an extra transistor, and a photovoltaic device disposed on the readout electronic circuit and electrically connected to apply an open circuit voltage of the photovoltaic device to a gate of the extra transistor.
    Type: Application
    Filed: December 5, 2018
    Publication date: December 2, 2021
    Applicant: OHIO STATE INNOVATION FOUNDATION
    Inventors: Sanjay Krishna, Earl Fuller, Waleed Khalil, Theodore RONNINGEN, Alireza Kazemi, Dale Shane Smith, Teressa Specht, Ramy Tantawy
  • Publication number: 20200321481
    Abstract: An apparatus for light detection includes a light, or photon, detector assembly and a dielectric resonator layer coupled to the detector assembly. The dielectric resonator layer is configured to receive transmission of incident light that is directed into the detector assembly by the dielectric resonator layer. The dielectric resonator layer resonates with a range of wavelengths of the incident light.
    Type: Application
    Filed: February 3, 2020
    Publication date: October 8, 2020
    Inventors: Sanjay Krishna, Anthony Grbic, Christopher Ball, Theodore Ronningen, Alireza Kazemi, Amin Ranjbar, Qingyuan Shu
  • Publication number: 20190145926
    Abstract: A detector or sensor including a transistor having a sensor element that generates a current when exposed to a stimulus such as light or a chemical, in one implementation, the sensor element is positioned between a transistor gate and a transistor channel. When the sensor element is not being exposed to the stimulus, the transistor outputs a first voltage on a transistor drain contact when the transistor inverts. When the sensor element is being exposed to the stimulus, the transistor outputs a second voltage on the transistor drain contact when the transistor inverts, where the second voltage is higher than the first voltage.
    Type: Application
    Filed: March 21, 2017
    Publication date: May 16, 2019
    Inventors: Sanjay KRISHNA, Payman ZARKESH-HA, David A. RAMIREZ, Brianna KLEIN, Francesca CAVALLO, Seyedeh Marziyeh ZAMIRI, Alireza KAZEMI, Clark KADLEC
  • Publication number: 20150231017
    Abstract: The invention concerns therapeutic equipment for treating and caring for the spinal column, the equipment comprising: a support frame (1); a seat for the patient to be treated, the seat position being orientable and adjustable; means for controlling the spinal column which consist of segments (19 to 24); adjustable means for supporting the legs and feet; adjustable traction and support means for the arms; and a force-transmission circuit consisting of a flexible cable (49).
    Type: Application
    Filed: September 23, 2013
    Publication date: August 20, 2015
    Inventor: Alireza Kazemi Banyhashemi