Patents by Inventor Tangali Sudarshan

Tangali Sudarshan 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: 9782846
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: October 10, 2017
    Assignee: UNIVERSITY OF SOUTH CAROLINA
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert Mark Kennedy
  • Publication number: 20150000590
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 1, 2015
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert Mark Kennedy
  • Patent number: 8820308
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: September 2, 2014
    Assignee: University of South Carolina
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert M. Kennedy
  • Patent number: 8820309
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: September 2, 2014
    Assignee: Univeristy of South Carolina
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert Kennedy
  • Patent number: 8291895
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: October 23, 2012
    Assignee: University of South Carolina
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert Kennedy
  • Publication number: 20090064983
    Abstract: Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 12, 2009
    Inventors: Tangali Sudarshan, Igor Agafonov, Robert Kennedy