Patents by Inventor Satyendra Kumar

Satyendra Kumar 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: 20090292040
    Abstract: The invention is a radiation curable liquid resin that can be used to make a clear and colorless, three-dimensional article by a stereolithography process. The clear and colorless three-dimensional articles have a clarity and transmittance of greater than about 67% as measured by UV-Visible spectrophotometer in the 400-500 nm range; and a lack of color as measured by a b* value of between about minus 0.5 (?0.5) and about positive 2.5 (+2.5) in the CIELAB color space using a spectrophotometer in the visible wavelengths of 400-750 nm.
    Type: Application
    Filed: July 29, 2009
    Publication date: November 26, 2009
    Applicant: DSM IP ASSETS B.V.
    Inventors: Satyendra Kumar SARMAH, Kevin Andrew ZARAS
  • Publication number: 20090286181
    Abstract: The invention is a radiation curable liquid resin that can be used to make a clear and colorless, three-dimensional article by a stereolithography process. The clear and colorless three-dimensional articles have a clarity and transmittance of greater than about 67% as measured by UV-Visible spectrophotometer in the 400-500 nm range; and a lack of color as measured by a b* value of between about minus 0.5 (?0.5) and about positive 2.5 (+2.5) in the CIELAB color space using a spectrophotometer in the visible wavelengths of 400-750 nm.
    Type: Application
    Filed: July 29, 2009
    Publication date: November 19, 2009
    Applicant: DSM IP ASSETS B.V.
    Inventors: Satyendra Kumar SARMAH, Kevin Andrew ZARAS
  • Publication number: 20090266325
    Abstract: A microwave combustion system is presented that can replace the conventional spark plug in an internal combustion engine. One or more microwave pulses are provided to a microwave feed in a plug that sits in the cylinder. A microwave generated plasma generated by the plug in the vicinity of a fuel mixture can provide for highly efficient combustion of the fuel-air mixture.
    Type: Application
    Filed: September 11, 2006
    Publication date: October 29, 2009
    Inventors: Devendra Kumar, Dominique Tasch, Ramesh Peelamedu, Satyendra Kumar, David Brosky, Michael Gregersen
  • Patent number: 7608798
    Abstract: Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for various plasma processes and treatments. In one embodiment, a plasma is ignited by subjecting a gas in a multi-mode processing cavity to electromagnetic radiation having a frequency between about 1 MHz and about 333 GHz in the presence of a plasma catalyst, which may be passive or active. A passive plasma catalyst may include, for example, any object capable of inducing a plasma by deforming a local electric field. An active plasma catalyst can include any particle or high energy wave packet capable of transferring a sufficient amount of energy to a gaseous atom or molecule to remove at least one electron from the gaseous atom or molecule, in the presence of electromagnetic radiation.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 27, 2009
    Assignee: BTU International Inc.
    Inventors: Satyendra Kumar, Devendra Kumar
  • Patent number: 7604850
    Abstract: An electro-optical device including a biaxial liquid crystal having a primary and secondary director is provided. A change in orientation of at least one of the directors due to an applied electric field produces a change in the optical state of the device. Response times are increased dramatically over uniaxial nematic based liquid crystal devices, offering improved performance and efficiency.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: October 20, 2009
    Assignee: Kent State University
    Inventor: Satyendra Kumar
  • Patent number: 7592564
    Abstract: Plasma-assisted methods and apparatus that use multiple radiation sources are provided. In one embodiment, a plasma is ignited by subjecting a gas in a radiation cavity to electromagnetic radiation having a frequency less than about 333 GHz in the presence of a plasma catalyst, which may be passive or active. A controller can be used to delay activation of one radiation source with respect to another radiation source.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: September 22, 2009
    Assignee: BTU International Inc.
    Inventors: Satyendra Kumar, Devendra Kumar
  • Publication number: 20090212015
    Abstract: Methods and apparatus are provided for plasma-assisted processing multiple work pieces in a manufacturing line. The manufacturing line can include a plurality of microwave cavities, each of the microwave cavities igniting and sustaining a microwave plasma. Work pieces can be shuttled between the plurality of microwave cavities on a conveyance system that controls the positioning of each of the work pieces.
    Type: Application
    Filed: March 17, 2006
    Publication date: August 27, 2009
    Inventors: Mike L. Dougherty, SR., Devendra Kumar, Satyendra Kumar
  • Patent number: 7560657
    Abstract: Methods and apparatus are provided for plasma-assisted processing multiple work pieces in a manufacturing line. In one embodiment, the method can include placing the work pieces in movable carriers, moving the carriers on a conveyor into an irradiation zone, flowing a gas into the irradiation zone, igniting the gas in the irradiation zone to form a plasma (e.g., by subjecting the gas to electromagnetic radiation in the presence of a plasma catalyst), sustaining the plasma for a period of time sufficient to at least partially plasma process at least one of the work pieces in the irradiation zone, and advancing the conveyor to move the at least one plasma-processed work piece out of the irradiation zone. Various types of plasma catalysts are also provided.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: July 14, 2009
    Assignee: BTU International Inc.
    Inventors: Michael L. Dougherty, Sr., Devendra Kumar, Satyendra Kumar
  • Patent number: 7498066
    Abstract: Methods and apparatus are provided for igniting, modulating, and sustaining a plasma (615) for coating objects (250). In one embodiment, a method of coating a surface of an object (250) includes forming a plasma (615) in a cavity (230) by subjecting a gas to electromagnetic radiation in the presence of a plasma catalyst (240) and adding at least one coating material (510) to the plasma (615) by energizing the material (510) with, for example, a laser (500). The material (510) is allowed to deposit on the surface of the object (250) to form a coating. Various types of plasma (240) catalysts are also provided.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: March 3, 2009
    Assignee: BTU International Inc.
    Inventors: Devendra Kumar, Satyendra Kumar
  • Patent number: 7497922
    Abstract: Methods and apparatus are provided for plasma-assisted gas production. In one embodiment, a gas, which includes at least one atomic or molecular species, can flow into a cavity (305). The gas can be subjected to electromagnetic radiation having a frequency less than about 333 GHz (optionally in the presence of a plasma catalyst) such that a plasma (310) forms in the cavity (305). A filter (315) capable of passing the atomic or molecular species, but preventing others from passing, can be in fluid communication with the cavity (305). In this way, the selected species can be extracted and collected, for storage or immediate use.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: March 3, 2009
    Assignee: BTU International, Inc.
    Inventors: Satyendra Kumar, Devendra Kumar
  • Patent number: 7494904
    Abstract: Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for various doping processes. In one embodiment, a substrate (250) can be doped by forming a plasma (610) in a cavity (285) by subjecting a gas to an amount of electromagnetic radiation in the presence of a plasma catalyst (240) and adding at least one dopant material to the plasma. The material is then allowed to penetrate into the substrate. Various active and passive catalysts are provided.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: February 24, 2009
    Assignee: BTU International, Inc.
    Inventors: Satyendra Kumar, Devendra Kumar
  • Publication number: 20090014441
    Abstract: A method of cooking a food item is disclosed. The food item is placed in a microwave cavity and exposed to a microwave generated plasma. In such fashion, the food item is cooked very quickly while maintaining flavor, texture, appearance, smell, and taste.
    Type: Application
    Filed: June 16, 2006
    Publication date: January 15, 2009
    Inventors: Dominique Tasch, David Brosky, Stephen Conrad, Satyendra Kumar, Devendra Kumar
  • Publication number: 20090004579
    Abstract: The invention is a radiation curable liquid resin that can be used to make a clear and colorless, three-dimensional article by a stereolithography process. The clear and colorless three-dimensional articles have a clarity and transmittance of greater than about 67% as measured by UV-Visible spectrophotometer in the 400-500 nm range; and a lack of color as measured by a b* value of between about minus 0.5 (?0.5) and about positive 2.5 (+2.5) in the CIELAB color space using a spectrophotometer in the visible wavelengths of 400-750 nm.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Applicant: DSM IP Assets B.V.
    Inventors: Satyendra Kumar Sarmah, Kevin Andrew Zaras
  • Patent number: 7465362
    Abstract: Methods and systems (10) for plasma-assisted nitrogen surface-treatments are provided. The method can include subjecting a gas (24) to electromagnetic radiation (26) in the presence of a plasma catalyst (100, 120, 140) to initiate a plasma containing nitrogen. The surface region of an object can be exposed to the plasma for a period of time sufficient to transfer at least some of the nitrogen from the plasma to the object through the surface region.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: December 16, 2008
    Assignee: BTU International, Inc.
    Inventors: Devendra Kumar, Satyendra Kumar
  • Patent number: 7445817
    Abstract: Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for synthesizing carbon structures. In one embodiment, a method is provided for synthesizing a carbon structure including forming a plasma by subjecting a gas to electromagnetic radiation in the presence of a plasma catalyst and adding at least one carbonaceous material to the plasma to grow the carbon structures on a substrate. Various types of plasma catalysts are also provided.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: November 4, 2008
    Assignee: BTU International Inc.
    Inventors: Satyendra Kumar, Devendra Kumar
  • Publication number: 20080270205
    Abstract: A framework for managing a lifecycle of a program in an organization is provided. The framework includes a process module, a guiding module, a program lifecycle mapping module, and a matrix module. The process module provides a plurality of process guidelines for the one or more stages of the project management lifecycle. Further, the process module includes a strategic planning module, a financial management module, a risk management module, an organization change management module, a stake holder management module, a knowledge management module, a contractual compliance module, a governance module and a program setup module. The guiding module integrates a plurality of organizational attributes with the process guidelines of the process module. The program lifecycle mapping module maps the plurality of process guidelines with the one or more stages of the life cycle. The matrix module provides assignment of program management roles to one or more participants.
    Type: Application
    Filed: November 21, 2007
    Publication date: October 30, 2008
    Applicant: INFOSYS TECHNOLOGIES LIMITED
    Inventors: Satyendra KUMAR, Aman Kumar SINGHAL, Vasudevan SANKARAN, Akhila Ramachandran JHA, Hareshkumar Mahadevrao AMRE, Sunil TALLOO, Anand J. RAGHAVAN, Harish Venkatesh KULKARNI, George ITTYERAH, Aruna C. NEWTON
  • Patent number: 7432470
    Abstract: Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for various plasma processes and treatments. Such treatments include cleaning and sterilizing parts. In some embodiments, a plasma is ignited by subjecting a gas in a multi-mode processing cavity to electromagnetic radiation having a frequency between about 1 MHz and about 333 GHz in the presence of a plasma catalyst. A part can be cleaned by, for example, inserting hydrogen into the plasma and exposing the part to the hydrogen-enriched plasma. A part can be sterilized by heating the part with the plasma.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: October 7, 2008
    Assignee: BTU International, Inc.
    Inventors: Satyendra Kumar, Devendra Kumar, Dominique Tasch, Raimund Stroebel
  • Publication number: 20080129208
    Abstract: An atmospheric plasma processing system is presented. In accordance with embodiments of the present invention, an atmospheric pressure plasma microwave processing apparatus includes a processing area or chamber wherein parts are processed; at least one multi-mode microwave reactor coupled to receive parts for processing; at least one magnetron coupled to at least one multi-mode microwave reactor to provide microwave energy; and a delivery system coupled to at least one multi-mode microwave reactor to deliver the parts into and out of at least one reactor, wherein a plasma can be generated at atmospheric pressure and provided to the parts in at least one multi-mode microwave reactor.
    Type: Application
    Filed: November 1, 2005
    Publication date: June 5, 2008
    Inventors: Satyendra Kumar, Devendra Kumar, Mike L. Dougherty, Kuruvilla Cherian
  • Patent number: 7355668
    Abstract: A liquid crystal device comprises of a pair of opposed substrates defining a cell gap. Each substrate has an electrode disposed on a surface facing the other substrate. A plurality of spacers are randomly disposed in the cell gap and extend from one substrate to the other substrate, wherein a polymerization enhancing or initiating compound is not disposed on the surface of the spacers. Polymer columns are randomly disposed between the opposed substrates, extending from one substrate to the other, at least a portion of which are disposed around and immobilize the spacers in the cell gap. A liquid crystal material is disposed in the cell gap. A method for making a liquid crystal device is also provided. The internal columnar structures provide stability against mechanical pressure enabling the fabrication of durable, flexible LC display devices using plastic substrates for applications in portable and handheld devices.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: April 8, 2008
    Assignee: Kent State University
    Inventors: Satyendra Kumar, Qingbing Wang
  • Patent number: 7309843
    Abstract: Methods and apparatus for plasma-assisted joining of one or more parts together are provided. The joining process may include, for example, placing at least first and second joining areas in proximity to one another in a cavity, forming a plasma in the cavity by subjecting a gas to electromagnetic radiation in the presence of a plasma catalyst, and sustaining the plasma at least until the first and second joining areas are joined. Plasma catalysts, and methods and apparatus for igniting, modulating, and sustaining a joining plasma, are provided. Additional cavity shapes, and methods and apparatus for selective plasma-joining, are also provided.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: December 18, 2007
    Assignee: BTU International, Inc.
    Inventors: Devendra Kumar, Satyendra Kumar