Patents by Inventor Santiranjan Shannigrahi

Santiranjan Shannigrahi 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: 9701585
    Abstract: The present invention provides a product and manufacturing method for electro-optic ceramic material having the composition (A?(1-y)A?y)1-XLnxM(1-2X/5)O3 wherein 0<x<0.1; 0<y<1; A? and A? are independently, alkali metals; Ln is a lanthanide metal; and M is a transition metal. The present invention provides a product and manufacturing method for an electro-optic device that is operable at room temperature and the properties of which are tunable by an applied external electric field.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 11, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Santiranjan Shannigrahi, Chee Kiang Ivan Tan, Hong Fei Liu, Kui Yao
  • Publication number: 20150376068
    Abstract: The present invention provides a product and manufacturing method for electro-optic ceramic material having the composition (A?(1-y)A?y)1-XLnxM(1-2X/5)O3 wherein 0<x<0.1; 0<y<1; A? and A? are independently, alkali metals; Ln is a lanthanide metal; and M is a transition metal. The present invention provides a product and manufacturing method for an electro-optic device that is operable at room temperature and the properties of which are tunable by an applied external electric field.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 31, 2015
    Applicant: Agency for Science, Tecnology and Research
    Inventors: Santiranjan Shannigrahi, Chee Kiang Ivan Tan, Hong Fei Liu, Kui Yao
  • Patent number: 8334454
    Abstract: The present invention provides a thin film photovoltaic device and a method of forming a thin film photovoltaic device. The thin film photovoltaic device has a substrate, a thin film layer formed on the substrate and first and second electrodes formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film. Upon exposure to light, the thin film layer converts light energy into electricity. According to the method, a thin film layer is formed on a substrate. A first electrode and a second electrode are formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 18, 2012
    Assignee: Agency for Science, Technology and Research
    Inventors: Kui Yao, Santiranjan Shannigrahi, Mei M. Chen, Bee K. Gan
  • Publication number: 20110081733
    Abstract: The present invention provides a thin film photovoltaic device and a method of forming a thin film photovoltaic device. The thin film photovoltaic device has a substrate, a thin film layer formed on the substrate and first and second electrodes formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film. Upon exposure to light, the thin film layer converts light energy into electricity. According to the method, a thin film layer is formed on a substrate. A first electrode and a second electrode are formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film.
    Type: Application
    Filed: December 3, 2010
    Publication date: April 7, 2011
    Inventors: Kui Yao, Santiranjan Shannigrahi, Mei M. Chen, Bee K. Gan
  • Patent number: 7851697
    Abstract: The present invention provides a thin film photovoltaic device and a method of forming a thin film photovoltaic device. The thin film photovoltaic device has a substrate, a thin film layer formed on the substrate and first and second electrodes formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film. Upon exposure to light, the thin film layer converts light energy into electricity. According to the method, a thin film layer is formed on a substrate. A first electrode and a second electrode are formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: December 14, 2010
    Assignee: Agency for Science, Technology and Research
    Inventors: Kui Yao, Santiranjan Shannigrahi, Mei M. Chen, Bee K. Gan
  • Publication number: 20100019623
    Abstract: An electromechanical device includes a support structure formed by attaching inner surfaces of second and third substrates to a first substrate. The support structure includes at least one cavity between the second and third layers. An electromechanical active element is provided on an outer surface of at least one of the second or third layers.
    Type: Application
    Filed: October 5, 2009
    Publication date: January 28, 2010
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, SONY CORPORATION
    Inventors: Kui Yao, Xiao Song Eric Tang, Jian Zhang, Santiranjan Shannigrahi, Peng Gao, Xujiang HE
  • Patent number: 7596841
    Abstract: An electromechanical device includes a support structure formed by attaching inner surfaces of second and third substrates to a first substrate. The support structure includes at least one cavity between the second and third layers. An electromechanical active element is provided on an outer surface of at least one of the second or third layers.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: October 6, 2009
    Assignees: Agency for Science Technology and Research, Sony Corporation
    Inventors: Kui Yao, Xiao Song Eric Tang, Peng Gao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi
  • Publication number: 20070164634
    Abstract: An electromechanical device includes a support structure formed by attaching inner surfaces of second and third substrates to a first substrate. The support structure includes at least one cavity between the second and third layers. An electromechanical active element is provided on an outer surface of at least one of the second or third layers.
    Type: Application
    Filed: April 23, 2004
    Publication date: July 19, 2007
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, SONY CORPORATION
    Inventors: Kui Yao, Xiao Song Tang, Peng Gao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi
  • Patent number: 7208806
    Abstract: A method for fabricating a MEMS device comprises providing a substrate having a back side, a front side opposite to the back side and a periphery portion. A desired microstructure is formed on the back side of the substrate. The substrate is then supported for rotation. A precursor solution is deposited on the front side of the substrate during rotation so that a thin film layer may be formed thereon. During formation of the thin film layer, the substrate is supported and rotated that the microstructure formed on the back side is protected.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: April 24, 2007
    Assignee: Agency for Science, Technology and Research
    Inventors: Kui Yao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi
  • Publication number: 20060213549
    Abstract: The present invention provides a thin film photovoltaic device and a method of forming a thin film photovoltaic device. The thin film photovoltaic device has a substrate, a thin film layer formed on the substrate and first and second electrodes formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film. Upon exposure to light, the thin film layer converts light energy into electricity. According to the method, a thin film layer is formed on a substrate. A first electrode and a second electrode are formed on one side of the thin film layer. By applying an electric field over the first and second electrodes, the thin film layer is polarized in a direction parallel to the surface plane of the film.
    Type: Application
    Filed: March 21, 2006
    Publication date: September 28, 2006
    Inventors: Kui Yao, Santiranjan Shannigrahi, Mei Chen, Bee Gan
  • Publication number: 20060068564
    Abstract: A method for fabricating a MEMS device comprises providing a substrate having a back side, a front side opposite to the back side and a periphery portion. A desired microstructure is formed on the back side of the substrate. The substrate is then supported for rotation. A precursor solution is deposited on the front side of the substrate during rotation so that a thin film layer may be formed thereon. During formation of the thin film layer, the substrate is supported and rotated that the microstructure formed on the back side is protected.
    Type: Application
    Filed: November 14, 2005
    Publication date: March 30, 2006
    Inventors: Kui Yao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi
  • Patent number: 7018862
    Abstract: A method for fabricating a MEMS device comprises providing a substrate having a back side, a front side opposite to the back side and a periphery portion. A desired microstructure is formed on the back side of the substrate. The substrate is then supported for rotation. A precursor solution is deposited on the front side of the substrate during rotation so that a thin film layer may be formed thereon. During formation of the thin film layer, the substrate is supported and rotated that the microstructure formed on the back side is protected.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 28, 2006
    Assignee: Agency for Science, Technology and Research
    Inventors: Kui Yao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi
  • Publication number: 20050014306
    Abstract: A method for fabricating a MEMS device comprises providing a substrate having a back side, a front side opposite to the back side and a periphery portion. A desired microstructure is formed on the back side of the substrate. The substrate is then supported for rotation. A precursor solution is deposited on the front side of the substrate during rotation so that a thin film layer may be formed thereon. During formation of the thin film layer, the substrate is supported and rotated that the microstructure formed on the back side is protected.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 20, 2005
    Inventors: Kui Yao, Xujiang He, Jian Zhang, Santiranjan Shannigrahi