Patents by Inventor Ranajit Sai

Ranajit Sai 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: 12265046
    Abstract: An example heterostructure semiconductor for sensing a gas comprises a substrate made of nanosheets of a compound of a first metal, wherein the compound of the first metal is sensitive to the gas to be sensed; one or more 1-Dimensional (1D) components fabricated on a surface of the substrate, the 1D components comprising a compound of a second metal, wherein the compound of the second metal is selective to the gas to be sensed; and a 2-Dimensional (2D) layer formed on the surface of the substrate in portions excluding the 1D components, wherein the 2D layer comprises compounds of the first and second metal. Method of fabrication of the heterostructure semiconductor and a chemiresistive sensor made thereof are also disclosed.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 1, 2025
    Assignee: INDIAN INSTITUTE OF SCIENCE
    Inventors: Neha Sakhuja, Ravindra Kumar Jha, Ranajit Sai, Navakanta Bhat
  • Publication number: 20220396880
    Abstract: The present invention provides an apparatus for the deposition of thin films on a substrate, including large substrates, held preferably face-down, in a cartridge containing a liquid solution with at least a chemical precursor which, upon being subject to a uniform microwave field transmitted through a microwave-transparent window, leads to the formation of a thin film on the substrate. The present invention also provides a system for launching microwaves and controlling the process for film deposition on the substrate. The present invention also provides a process for obtaining a film of uniform thickness and characteristics on a substrate or for incorporating controlled non-uniformity. The present invention also provides an apparatus and method for film deposition on a series of substrates in a continuous batch process.
    Type: Application
    Filed: November 2, 2020
    Publication date: December 15, 2022
    Inventors: Ranajit Sai, Srinivasarao Ajjampur Shivshankar, Kumar Hooda Manish
  • Publication number: 20220042941
    Abstract: An example heterostructure semiconductor for sensing a gas comprises a substrate made of nanosheets of a compound of a first metal, wherein the compound of the first metal is sensitive to the gas to be sensed; one or more 1-Dimensional (1D) components fabricated on a surface of the substrate, the 1D components comprising a compound of a second metal, wherein the compound of the second metal is selective to the gas to be sensed; and a 2-Dimensional (2D) layer formed on the surface of the substrate in portions excluding the 1D components, wherein the 2D layer comprises compounds of the first and second metal. Method of fabrication of the heterostructure semiconductor and a chemiresistive sensor made thereof are also disclosed.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 10, 2022
    Inventors: Neha Sakhuja, Ravindra Kumar Jha, Ranajit Sai, Navakanta Bhat
  • Patent number: 9741656
    Abstract: The present invention provides a high-frequency integrated device, comprising a substrate including at least an on-chip active and passive member and a ferrite layer bonded to the substrate through an interfacial bridge and substantially wrapping plurality of surfaces of said at least on-chip active and passive members. The present invention also provides a system incorporating the high-frequency integrated device of the present invention. The present invention further provides a process for the preparation of the high-frequency integrated device.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 22, 2017
    Assignee: INDIAN INSTITUTE OF SCIENCE
    Inventors: Ranajit Sai, Srinivasarao Ajjampur Shivshankar, Navakanta Bhat, Vinoy Kalarickaparambil Joseph
  • Publication number: 20150287658
    Abstract: The present invention provides a high-frequency integrated device, comprising a substrate including at least an on-chip active and passive member and a ferrite layer bonded to the substrate through an interfacial bridge and substantially wrapping plurality of surfaces of said at least on-chip active and passive members. The present invention also provides a system incorporating the high-frequency integrated device of the present invention. The present invention further provides a process for the preparation of the high-frequency integrated device.
    Type: Application
    Filed: October 30, 2013
    Publication date: October 8, 2015
    Applicant: INDIAN INSTITUTE OF SCIENCE
    Inventors: Ranajit Sai, Srinivasarao Ajjampur Shivshankar, Navakanta Bhat, Vinoy Kalarickaparambil Joseph