Patents by Inventor Ajay Agarwal

Ajay Agarwal 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: 8805467
    Abstract: A probe element and a method of forming a probe element are provided. The probe element includes a carrier comprising biodegradable and/or bioactive material; and at least one electrode coupled to the carrier.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 12, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Levent Yobas, Ajay Agarwal, Ramana Murthy Badam, Rama Krishna Kotlanka, Xiang Jie Cyrus Foo
  • Patent number: 8607359
    Abstract: A system and method is disclosed for authenticating a removable data storage device (RDSD) by using a trusted information module (TIM) to control access to data files stored on the RDSD. A security information input receiver receives identity verification factors from a user and provides the identity verification factors to the TIM for processing. In some embodiments of the invention, the TIM uses identity verification factors in cryptographic operation to authenticate the user, the RDSD and the information processing system to each other. The TIM then performs similar operations with the contents of one or more authorization files to control access and usage of the data files stored on the RDSD.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: December 10, 2013
    Assignee: Dell Products L.P.
    Inventors: Thomas L. Pratt, Ajay Agarwal, Winston Bumpus, William A. Curtis
  • Patent number: 8549619
    Abstract: A system and method is disclosed for authenticating a removable data storage device (RDSD) by implementing a removable trusted information module (TIM) comprising a non-volatile storage medium operable to securely store passwords, digital keys, digital certificates and other security credentials (“security credentials”). An RDSD enclosure comprising a disk storage drive, one or more interfaces, one or more connectors, and a TIM is implemented to be connected, disconnected and reconnected to a plurality of predetermined information handling systems. The RDSD is authenticated by the TIM initiating comparison and cryptographic operations between its contents and the contents of authentication files comprising the RDSD. Once the RDSD has been authenticated, the TIM performs similar operations to authorize access and usage of its contents by the information handling system. Other cryptographic operations are performed to determine whether the integrity of data files has been compromised.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: October 1, 2013
    Assignee: Dell Products L.P.
    Inventors: Winston Bumpus, Ajay Agarwal, William A. Curtis, Thomas L. Pratt
  • Publication number: 20130012801
    Abstract: A probe element and a method of forming a probe element are provided. The probe element includes a carrier comprising biodegradable and/or bioactive material; and at least one electrode coupled to the carrier.
    Type: Application
    Filed: October 29, 2010
    Publication date: January 10, 2013
    Inventors: Levent Yobas, Ajay Agarwal, Ramana Murthy Badam, Rama Krishna Kotlanka, Xiang Jie Cyrus Foo
  • Patent number: 8236595
    Abstract: A method of fabricating a sensor comprising a nanowire on a support substrate with a first semiconductor layer arranged on the support substrate is disclosed. The method comprises forming a fin structure from the first semiconductor layer, the fin structure comprising at least two supporting portions and a fin portion arranged there between; oxidizing at least the fin portion of the fin structure thereby forming the nanowire being surrounded by a first layer of oxide; and forming an insulating layer above the supporting portions; wherein the supporting portions and the first insulating layer form a microfluidic channel. A nanowire sensor is also disclosed.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: August 7, 2012
    Assignee: Agency for Science, Technology and Research
    Inventors: Ajay Agarwal, Navab Singh, Rakesh Kumar, Ieng Kin Lao, Narayanan Balasubramanian
  • Publication number: 20110193183
    Abstract: A method of fabricating a sensor comprising a nanowire on a support substrate with a first semiconductor layer arranged on the support substrate is disclosed. The method comprises forming a fin structure from the first semiconductor layer, the fin structure comprising at least two supporting portions and a fin portion arranged there between; oxidizing at least the fin portion of the fin structure thereby forming the nanowire being surrounded by a first layer of oxide; and forming an insulating layer above the supporting portions; wherein the supporting portions and the first insulating layer form a microfluidic channel. A nanowire sensor is also disclosed.
    Type: Application
    Filed: August 11, 2006
    Publication date: August 11, 2011
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Ajay Agarwal, Navab Singh, Rakesh Kumar, Ieng Kin Lao, Narayanan Balasubramanian
  • Publication number: 20110104817
    Abstract: Embodiments provide an integrated micro device. The integrated micro device comprises a substrate, a first microfluidic device disposed over a first surface of the substrate, a second microfluidic device disposed over a second surface of the substrate, and at least one via hole through the substrate connecting the first microfluidic device and the second microfluidic device. The second surface of the substrate is opposite to the first surface of the substrate. The first microfluidic device is monolithically integrated with the substrate, and the second microfluidic device is monolithically integrated with the substrate.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 5, 2011
    Inventors: Tae Goo Kang, Ajay Agarwal, Hongmiao Ji, Guojun Zhang, Yu Chen
  • Patent number: 7861168
    Abstract: A system and method is disclosed for visually communicating disk storage meta information comprising a removable data storage device (RDSD). An RDSD enclosure comprising a disk storage drive, input/output interface, one or more connectors, a storage information module (SIM), a power storage device, and a display is implemented to be connected, disconnected and reconnected to a plurality of predetermined information handling systems. The RDSD is connected to a predetermined information handling system and the SIM gathers information from a plurality of disk information files comprising the RDSD. Once gathered, this information is visually communicated via the SIM to a display comprising the RDSD. When connected to, and powered by, an information handling system, the displayed information is dynamically updated as the operational status of the RDSD changes, but becomes static when RDSD is disconnected.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: December 28, 2010
    Assignee: Dell Products L.P.
    Inventors: Winston Bumpus, Ajay Agarwal, William A. Curtis, Thomas L. Pratt
  • Patent number: 7844919
    Abstract: The invention provides the ability to interactively select and configure a product among a set of related products based on availability and compatibility of features and options. It does not impose an order in the selection of products, features or options; only valid selections can be made at any time. To create an electronic representation of the product information to achieve the above goal, the invention provides a framework for defining a systems by defining the components of the system using elements contained in a parts catalog and defining relationships between the components of a system. A configuration system validates a configuration using the system definition, the current state of the configuration and user input.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: November 30, 2010
    Assignee: Versata Development Group, Inc.
    Inventors: Neeraj Gupta, Venky Veeraraghavan, Ajay Agarwal
  • Publication number: 20100055673
    Abstract: A device for analysing the status of a biological entity. The device (10) comprises a substantially transparent base substrate (11) having a recess defined therein by at least two opposing lateral walls and a base wall, a substantially transparent filler member (14) having at least a portion thereof occupying the recess, a substantially transparent separation layer (12) disposed between the filler member and the base substrate, and a channel (16) defined in the filler member, wherein the channel comprises an inlet and an outlet, the inlet being arranged on a first lateral wall of the filler member, and the outlet being arranged on a second lateral wall of the filler member, said first lateral wall of the filler member being arranged in opposing relationship with the second lateral wall of the filler member, and at least a portion of the first and the second lateral walls of the filler member being at least substantially perpendicular to the opposing lateral walls defining the recess.
    Type: Application
    Filed: May 31, 2006
    Publication date: March 4, 2010
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Ajay Agarwal, Narayanan Balasubramanian, Lihui Guo, Chee Chung Wong
  • Publication number: 20100015008
    Abstract: The present invention provides a device for analyzing the status of a biological entity. The device comprises a base substrate having a recess defined therein by two opposing lateral walls and a base wall, a filler member having at least a portion thereof occupying the recess, and a channel defined in the portion of the filler member occupying the recess, wherein the channel comprises a first aperture and a second aperture, the first aperture being arranged on a first lateral wall of the filler member, and the second aperture being arranged on a second lateral wall of the filler member, said first lateral wall of the filler member being arranged in opposing relationship with the second lateral wall of the filler member, and at least a portion of the first and the second lateral walls of the filler member being at least substantially perpendicular to the opposing lateral walls defining the recess.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 21, 2010
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Wee Liat Ong, Levent Yobas, Kim Cheong Tang, Ajay Agarwal, Nagarajan Ranganathan
  • Patent number: 7486430
    Abstract: In a 3D free space micromirror device, a mirror plate is joined with actuators through flexible springs where the other ends of the actuators have fixed support on the substrate. Single crystal silicon and aluminum are used as bi-morph materials with silicon dioxide providing electrical isolation between the two. Thickness variation in the microstructure is achieved by two-step p-n junction formed in a p-type substrate. Thick and thin n-silicon layer formation and DRIE cut mechanisms are employed in such a way that all the thick and thin silicon components of the structure are released simultaneously avoiding overetch which can be detrimental to the thin flexural springs. Working prototypes of the device have been found suitable for any optical switching array architecture where deflections up to 10 degrees are required.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: February 3, 2009
    Assignee: Agency for Science, Technology and Research
    Inventors: Chih Kiong Terence Gan, Ajay Agarwal, Janak Singh, Xiaolin Zhang
  • Publication number: 20080178080
    Abstract: A system and method is disclosed for visually communicating disk storage meta information comprising a removable data storage device (RDSD). An RDSD enclosure comprising a disk storage drive, input/output interface, one or more connectors, a storage information module (SIM), a power storage device, and a display is implemented to be connected, disconnected and reconnected to a plurality of predetermined information handling systems. The RDSD is connected to a predetermined information handling system and the SIM gathers information from a plurality of disk information files comprising the RDSD. Once gathered, this information is visually communicated via the SIM to a display comprising the RDSD. When connected to, and powered by, an information handling system, the displayed information is dynamically updated as the operational status of the RDSD changes, but becomes static when RDSD is disconnected.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Inventors: Winston Bumpus, Ajay Agarwal, William A. Curtis, Thomas L. Pratt
  • Publication number: 20080178007
    Abstract: A system and method is disclosed for authenticating a removable data storage device (RDSD) by implementing a removable trusted information module (TIM) comprising a non-volatile storage medium operable to securely store passwords, digital keys, digital certificates and other security credentials (“security credentials”). An RDSD enclosure comprising a disk storage drive, one or more interfaces, one or more connectors, and a TIM is implemented to be connected, disconnected and reconnected to a plurality of predetermined information handling systems. The RDSD is authenticated by the TIM initiating comparison and cryptographic operations between its contents and the contents of authentication files comprising the RDSD. Once the RDSD has been authenticated, the TIM performs similar operations to authorize access and usage of its contents by the information handling system. Other cryptographic operations are performed to determine whether the integrity of data files has been compromised.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Inventors: Winston Bumpus, Ajay Agarwal, William A. Curtis, Thomas L. Pratt
  • Publication number: 20080178283
    Abstract: A system and method is disclosed for authenticating a removable data storage device (RDSD) by using a trusted information module (TIM) to control access to data files stored on the RDSD. A security information input receiver receives identity verification factors from a user and provides the identity verification factors to the TIM for processing. In some embodiments of the invention, the TIM uses identity verification factors in cryptographic operation to authenticate the user, the RDSD and the information processing system to each other. The TIM then performs similar operations with the contents of one or more authorization files to control access and usage of the data files stored on the RDSD.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Inventors: Thomas L. Pratt, Ajay Agarwal, Winston Bumpus, William A. Curtis
  • Patent number: 7091057
    Abstract: First and second n-doped regions are formed at a surface of a p-doped single crystal silicon substrate. An aluminum layer is patterned overlying some of the second n-doped regions to form thermal actuators. A dielectric layer is deposited overlying the patterned aluminum layer and an underlying thermal oxide layer. A metal layer is deposited thereover and patterned to form bond pads to the thermal actuators and to form reflecting mirror surfaces overlying others of the second n-doped regions to form micromirrors. The substrate is etched away from the backside stopping at the first and second n-doped regions. Then the wafer is diced into mirror array chips. Portions of the first n-doped regions are etched away from the frontside to form flexible springs wherein the second n-doped regions covered by the patterned aluminum layer form thermal actuators and wherein the flexible springs connect the micromirrors to the thermal actuators.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 15, 2006
    Assignee: Agency for Science, Technology and Research
    Inventors: Chih Kiong Terence Gan, Ajay Agarwal, Janak Singh, Xiaolin Zhang
  • Publication number: 20060141659
    Abstract: In a 3D free space micromirror device, a mirror plate is joined with actuators through flexible springs where the other ends of the actuators have fixed support on the substrate. Single crystal silicon and aluminum are used as bi-morph materials with silicon dioxide providing electrical isolation between the two. Thickness variation in the microstructure is achieved by two-step p-n junction formed in a p-type substrate. Thick and thin n-silicon layer formation and DRIE cut mechanisms are employed in such a way that all the thick and thin silicon components of the structure are released simultaneously avoiding overetch which can be detrimental to the thin flexural springs. Working prototypes of the device have been found suitable for any optical switching array architecture where deflections up to 10 degrees are required.
    Type: Application
    Filed: February 2, 2006
    Publication date: June 29, 2006
    Inventors: Chih Kiong Gan, Ajay Agarwal, Janak Singh, Xiaolin Zhang
  • Publication number: 20050136663
    Abstract: In a 3D free space micromirror device, a mirror plate is joined with actuators through flexible springs where the other ends of the actuators have fixed support on the substrate. Single crystal silicon and aluminum are used as bi-morph materials with silicon dioxide providing electrical isolation between the two. Thickness variation in the microstructure is achieved by two-step p-n junction formed in a p-type substrate. Thick and thin n-silicon layer formation and DRIE cut mechanisms are employed in such a way that all the thick and thin silicon components of the structure are released simultaneously avoiding overetch which can be detrimental to the thin flexural springs. Working prototypes of the device have been found suitable for any optical switching array architecture where deflections up to 10 degrees are required.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Chih Terence Gan, Ajay Agarwal, Janak Singh, Xiaolin Zhang
  • Patent number: 6675294
    Abstract: The invention provides the ability to interactively select and configure a product among a set of related products based on availability and compatibility of features and options. It does not impose an order in the selection of products, features or options; only valid selections can be made at any time. To create an electronic representation of the product information to achieve the above goal, the invention provides a framework for defining a systems by defining the components of the system using elements contained in a parts catalog and defining relationships between the components of a system. A configuration system validates a configuration using the system definition, the current state of the configuration and user input.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: January 6, 2004
    Assignee: Trilogy Development Group, Inc.
    Inventors: Neeraj Gupta, Venky Veeraraghavan, Ajay Agarwal
  • Publication number: 20030217252
    Abstract: The invention provides the ability to interactively select and configure a product among a set of related products based on availability and compatibility of features and options. It does not impose an order in the selection of products, features or options; only valid selections can be made at any time. To create an electronic representation of the product information to achieve the above goal, the invention provides a framework for defining a systems by defining the components of the system using elements contained in a parts catalog and defining relationships between the components of a system. A configuration system validates a configuration using the system definition, the current state of the configuration and user input.
    Type: Application
    Filed: June 11, 2002
    Publication date: November 20, 2003
    Inventors: Neeraj Gupta, Venky Veeraraghavan, Ajay Agarwal