Patents by Inventor Mohammad Sadeghi

Mohammad Sadeghi 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).

  • Publication number: 20210296523
    Abstract: The present invention teaches a structure of a photodetector and the method of making thereof. A photodetector in accordance of the present invention is easy to fabricate, can be fabricated through low temperature processes, has high responsivity, high switching speed and high active area to device area ratio, is able to operate under photovoltaic mode or reverse bias conditions.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 23, 2021
    Inventors: Zhen Gao, Navid Mohammad Sadeghi Jahed, Siva Sivoththaman
  • Patent number: 11056606
    Abstract: The present invention teaches a structure of a photodetector and the method of making thereof. A photodetector inaccordance of the present invention is easy to fabricate, can be fabricated through low temperature processes, has high responsivity, high switching speed and high active area to device area ratio, is able to operate under photovotaic mode or reverse bias conditions.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: July 6, 2021
    Assignee: Visionary Semiconductor Inc.
    Inventors: Zhen Gao, Navid Mohammad Sadeghi Jahed, Siva Sivoththaman
  • Patent number: 10175187
    Abstract: The integration of monolayer graphene with a semiconductor device for gas sensing applications involves obtaining a CMOS device that is prepared to receive monolayer graphene channels. After population of the monolayer graphene channels on the CMOS device, electrical contacts are formed at each end of the monolayer graphene channels with interconnect vias having sidewalls angled at less then 90°. Additional metallization pads are added at the location of the monolayer graphene channels to improve planarity and reliability of the semiconductor processing involved.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 8, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: Deji Akinwande, Seyedeh Maryam Mortazavi Zanjani, Mir Mohammad Sadeghi, Milo Holt
  • Publication number: 20180150753
    Abstract: A computer-implemented method of analyzing text documents, includes identifying a relationship in a text document associated with an entity, building a predictive model from training data, in response to said identifying a relationship, wherein the predictive model includes a prediction error, and determining whether to store the identified relationship in memory, based on the prediction error.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: Robert George FARRELL, Oktie HASSANZADEH, Mohammad Sadeghi HAMEDANI, Meinolf SELLMANN
  • Patent number: 9869651
    Abstract: The sensitivity of a graphene gas sensor to a gas analyte molecule may be significantly enhanced using molecular doping, which may be as effective as substitutional doping and more effective than electric-field doping. In particular, the room temperature sensitivity of NO2-doped graphene to NH3 was measured to be comparable to the sensitivity of graphene doped with substitutional boron atoms and superior to that of undoped graphene by an order of magnitude. The detection limit for NO2-doped graphene gas sensors was estimated to be about 200 ppb, which may be improved with extended exposure to NO2, compared to a detection limit of about 1.4 ppm for undoped graphene. While the stability analysis of NO2-doped graphene sensors indicates that the doping method may not be completely stable, molecular doping is nevertheless a candidate technique for sensitivity improvement by enhancing the initial carrier concentration.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 16, 2018
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Deji Akinwande, Seyedeh Maryam Mortazavi Zanjani, Mir Mohammad Sadeghi, Milo Holt
  • Publication number: 20170350835
    Abstract: The integration of monolayer graphene with a semiconductor device for gas sensing applications involves obtaining a CMOS device that is prepared to receive monolayer graphene channels. After population of the monolayer graphene channels on the CMOS device, electrical contacts are formed at each end of the monolayer graphene channels with interconnect vias having sidewalls angled at less then 90°. Additional metallization pads are added at the location of the monolayer graphene channels to improve planarity and reliability of the semiconductor processing involved.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Inventors: Deji Akinwande, Seyedeh Maryam Mortazavi Zanjani, Mir Mohammad Sadeghi, Milo Holt
  • Publication number: 20170315075
    Abstract: The sensitivity of a graphene gas sensor to a gas analyte molecule may be significantly enhanced using molecular doping, which may be as effective as substitutional doping and more effective than electric-field doping. In particular, the room temperature sensitivity of NO2-doped graphene to NH3 was measured to be comparable to the sensitivity of graphene doped with substitutional boron atoms and superior to that of undoped graphene by an order of magnitude. The detection limit for NO2-doped graphene gas sensors was estimated to be about 200 ppb, which may be improved with extended exposure to NO2, compared to a detection limit of about 1.4 ppm for undoped graphene. While the stability analysis of NO2-doped graphene sensors indicates that the doping method may not be completely stable, molecular doping is nevertheless a candidate technique for sensitivity improvement by enhancing the initial carrier concentration.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 2, 2017
    Inventors: Deji Akinwande, Seyedeh Maryam Mortazavi Zanjani, Mir Mohammad Sadeghi, Milo Holt
  • Publication number: 20070138215
    Abstract: A dispensing container fillable with a liquid includes a squeezable reservoir for holding the liquid prior to dispensing; a nipple dispensing head which is integral with the squeezable reservoir and having a distal end and a proximal end; an outlet at the distal end of the nipple dispensing head for dispensing the liquid from the container; a passage interconnecting the squeezable reservoir and the outlet; and a stop disposed near the proximal end of the nipple dispensing head to prevent over-insertion of the dispensing head into a user's mouth when the container is used to dispense the liquid to the user. Containers that are filled with liquid and a method of making the containers are also described.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: Holopack International Corp.
    Inventors: Walter Zahn, Shawn Miller, David Rocheleau, Mohammad Sadeghi, Bernd Hansen
  • Publication number: 20060175279
    Abstract: A vial for dispensing a liquid into a syringe is described which comprises a body section for holding the liquid, the body section having a top and a bottom; a port having a removable seal, where the port is adapted for a syringe connection and where the port is interconnected with the body section at a point near the top of the body section by a passageway which for at least a portion of its length extends above the level of the liquid in the body section when the vial is inverted, thereby preventing leakage of the liquid from the body section when the seal of the port is removed. A method of making the vial is also described.
    Type: Application
    Filed: June 13, 2005
    Publication date: August 10, 2006
    Applicant: Holopack International Corp.
    Inventors: Shawn Miller, David Rocheleau, Mohammad Sadeghi, Walter Zahn, Bernd Hansen
  • Publication number: 20060169664
    Abstract: A vial for dispensing a liquid into a syringe is described which comprises a body section for holding the liquid, the body section having a top and a bottom; a port having a removable seal, where the port is adapted for a syringe connection and where the port is interconnected with the body section at a point near the top of the body section by a passageway which for at least a portion of its length extends above the level of the liquid in the body section when the vial is inverted, thereby preventing leakage of the liquid from the body section when the seal of the port is removed. A method of making the vial is also described.
    Type: Application
    Filed: May 20, 2005
    Publication date: August 3, 2006
    Applicant: Holopack International Corp.
    Inventors: Shawn Miller, David Rocheleau, Mohammad Sadeghi, Walter Zahn
  • Publication number: 20060108384
    Abstract: A dispensing container fillable with a liquid includes a squeezable reservoir for holding the liquid prior to dispensing, a dispensing outlet for expending the liquid, and a flow control system for regulating the velocity of the liquid exiting the outlet when a squeezing pressure is applied to the liquid-holding reservoir.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 25, 2006
    Applicant: Holopack International Corp.
    Inventors: Walter Zahn, Shawn Miller, David Rocheleau, Mohammad Sadeghi, Bernd Hansen
  • Publication number: 20060108385
    Abstract: A dispensing container fillable with a liquid includes a squeezable reservoir for holding the liquid prior to dispensing; a dispensing head which appears substantially flat in profile and which is integral with the squeezable reservoir and having a distal end and a proximal end and having a bottom surface and a top surface one or both of which has an indented portion; an outlet at the distal end of the dispensing head for dispensing the liquid from the container; a passage interconnecting the squeezable reservoir and the outlet; and a stop disposed near the proximal end of the dispensing head to prevent over-insertion of the dispensing head into a user's mouth when the container is used to dispense the liquid to the user. Containers that are pre-filled with liquid and a method of making the containers are also described.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 25, 2006
    Applicant: Holopack International Corp.
    Inventors: Walter Zahn, Shawn Miller, David Rocheleau, Mohammad Sadeghi, Bernd Hansen
  • Publication number: 20060108374
    Abstract: A dispensing container tillable with a liquid includes a squeezable reservoir for holding the liquid prior to dispensing; a substantially flat dispensing head which is integral with the squeezable reservoir and having a distal end and a proximal end; an outlet at the distal end of the dispensing head for dispensing the liquid from the container; a passage interconnecting the squeezable reservoir and the outlet; and a stop disposed near the proximal end of the dispensing head to prevent over-insertion of the dispensing head into a user's mouth when the container is used to dispense the liquid to the user. Containers that are pre-filled with liquid and a method of making the containers are also described.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 25, 2006
    Applicant: Holopack International Corp.
    Inventors: Walter Zahn, Shawn Miller, David Rocheleau, Mohammad Sadeghi, Bernd Hansen