Patents by Inventor Jayaraman Krishnasamy

Jayaraman Krishnasamy 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: 20240085481
    Abstract: A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Jairo T. MOURA, Nathan SPIKER, Aaron GAWLIK, Jayaraman KRISHNASAMY
  • Publication number: 20240088764
    Abstract: A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 14, 2024
    Inventors: Jairo T. MOURA, Jayaraman KRISHNASAMY
  • Patent number: 11821953
    Abstract: A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: November 21, 2023
    Assignee: Brooks Automation US, LLC
    Inventors: Jairo T Moura, Nathan Spiker, Aaron Gawlik, Jayaraman Krishnasamy
  • Publication number: 20220352776
    Abstract: A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 3, 2022
    Inventors: Martin Hosek, Sripati Sah, Jayaraman Krishnasamy
  • Patent number: 11444521
    Abstract: A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 13, 2022
    Assignee: Brooks Automation US, LLC
    Inventors: Jairo T. Moura, Jayaraman Krishnasamy
  • Patent number: 11404929
    Abstract: A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 2, 2022
    Assignee: Persimmon Technologies Corporation
    Inventors: Martin Hosek, Sripati Sah, Jayaraman Krishnasamy
  • Publication number: 20220172972
    Abstract: A substrate processing apparatus including a frame, a first SCARA arm connected to the frame, including an end effector, configured to extend and retract along a first radial axis; a second SCARA arm connected to the frame, including an end effector, configured to extend and retract along a second radial axis, the SCARA arms having a common shoulder axis of rotation; and a drive section coupled to the SCARA arms is configured to independently extend each SCARA arm along a respective radial axis and rotate each SCARA arm about the common shoulder axis of rotation where the first radial axis is angled relative to the second radial axis and the end effector of a respective arm is aligned with a respective radial axis, wherein each end effector is configured to hold at least one substrate and the end effectors are located on a common transfer plane.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 2, 2022
    Inventors: Robert T. CAVENEY, Jayaraman Krishnasamy, Ulysses Gilchrist, Mitchell Drew, Jairo Moura
  • Publication number: 20220155372
    Abstract: A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 19, 2022
    Inventors: Jairo T. Moura, Nathan SPIKER, Aaron GAWLIK, Jayaraman KRISHNASAMY
  • Patent number: 11195738
    Abstract: A substrate processing apparatus including a frame, a first SCARA arm connected to the frame, including an end effector, configured to extend and retract along a first radial axis; a second SCARA arm connected to the frame, including an end effector, configured to extend and retract along a second radial axis, the SCARA arms having a common shoulder axis of rotation; and a drive section coupled to the SCARA arms is configured to independently extend each SCARA arm along a respective radial axis and rotate each SCARA arm about the common shoulder axis of rotation where the first radial axis is angled relative to the second radial axis and the end effector of a respective arm is aligned with a respective radial axis, wherein each end effector is configured to hold at least one substrate and the end effectors are located on a common transfer plane.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 7, 2021
    Assignee: Brooks Automation, Inc.
    Inventors: Robert T. Caveney, Jayaraman Krishnasamy, Ulysses Gilchrist, Mitchell Drew, Jairo Moura
  • Patent number: 11180841
    Abstract: A soft magnetic material comprises a plurality of iron-containing particles and an insulating layer on the iron-containing particles, the insulating layer comprising an oxide. The soft magnetic material is an aggregate of permeable micro-domains separated by insulation boundaries.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 23, 2021
    Assignee: Persimmon Technologies Corporation
    Inventors: Martin Hosek, Sripati Sah, Jayaraman Krishnasamy
  • Patent number: 11181582
    Abstract: A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: November 23, 2021
    Assignee: Brooks Automation, Inc.
    Inventors: Jairo T. Moura, Nathan Spiker, Aaron Gawlik, Jayaraman Krishnasamy
  • Publication number: 20210308755
    Abstract: A system for producing a soft magnetic material having a core-shell structure includes a gas supply configured to supply at least one gas; and a furnace configured to receive the at least one gas. A flow of the at least one gas is configured to be varied to provide a shell on a particle in the furnace.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Inventors: Ankur Gupta, Brett Guralnick, Jayaraman Krishnasamy
  • Publication number: 20210296946
    Abstract: An apparatus includes a motor having a rotor; and a stator, where the rotor is located at least partially in a rotor receiving area of the stator, where the stator includes at least one coil winding and teeth, where the at least one coil winding is located on at least some of the teeth, where the teeth include a first set of the teeth and a second set of the teeth, where the teeth of the first set of teeth are longer in a radial direction from the rotor receiving area than the teeth of the second set of teeth.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 23, 2021
    Inventors: Jayaraman KRISHNASAMY, Martin Hosek, Dennis Poole
  • Patent number: 11043857
    Abstract: An apparatus includes a motor having a rotor; and a stator, where the rotor is located at least partially in a rotor receiving area of the stator, where the stator includes at least one coil winding and teeth, where the at least one coil winding is located on at least some of the teeth, where the teeth include a first set of the teeth and a second set of the teeth, where the teeth of the first set of teeth are longer in a radial direction from the rotor receiving area than the teeth of the second set of teeth.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 22, 2021
    Assignee: Persimmon Technologies Corporation
    Inventors: Jayaraman Krishnasamy, Martin Hosek, Dennis Poole
  • Patent number: 10967511
    Abstract: A time-optimal trajectory generation method, for a robotic manipulator having a transport path with at least one path segment, comprising generating a forward time-optimal trajectory of the manipulator along the at least one path segment from a start point of the at least one path segment towards an end point of the at least one path segment, generating a reverse time-optimal trajectory of the manipulator along the at least one path segment from the end point towards the start point of the at least one path segment, and combining the time-optimal forward and reverse trajectories to obtain a complete time-optimal trajectory, where the forward and reverse trajectories of the at least one path segment are blended together with a smoothing bridge joining the time-optimal forward and reverse trajectories in a position-velocity reference frame with substantially no discontinuity between the time-optimal forward and reverse trajectories.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 6, 2021
    Assignee: Brooks Automation, Inc.
    Inventors: Jayaraman Krishnasamy, Martin Hosek
  • Publication number: 20200321232
    Abstract: A substrate processing apparatus including a frame, a first SCARA arm connected to the frame, including an end effector, configured to extend and retract along a first radial axis; a second SCARA arm connected to the frame, including an end effector, configured to extend and retract along a second radial axis, the SCARA arms having a common shoulder axis of rotation; and a drive section coupled to the SCARA arms is configured to independently extend each SCARA arm along a respective radial axis and rotate each SCARA arm about the common shoulder axis of rotation where the first radial axis is angled relative to the second radial axis and the end effector of a respective arm is aligned with a respective radial axis, wherein each end effector is configured to hold at least one substrate and the end effectors are located on a common transfer plane.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 8, 2020
    Inventors: Robert T. CAVENEY, Jayaraman KRISHNASAMY, Ulysses GILCHRIST, Mitchell DREW, Jairo MOURA
  • Publication number: 20200256919
    Abstract: A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 13, 2020
    Inventors: Jairo T. MOURA, Nathan SPIKER, Aaron GAWLIK, Jayaraman KRISHNASAMY
  • Publication number: 20200244112
    Abstract: A material comprises at least one layer of a plurality of domains, each domain being flattened in a first direction and elongated in a second direction normal to the first direction. The flattened and elongated domains define an anisotropic microstructure that facilitates a magnetic flux flow in the second direction.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Martin Hosek, Jayaraman Krishnasamy
  • Publication number: 20200149147
    Abstract: A soft magnetic material comprises a plurality of iron-containing particles and an insulating layer on the iron-containing particles, the insulating layer comprising an oxide. The soft magnetic material is an aggregate of permeable micro-domains separated by insulation boundaries.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventors: Martin Hosek, Sripati Sah, Jayaraman Krishnasamy
  • Publication number: 20200153303
    Abstract: A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Martin Hosek, Sripati Sah, Jayaraman Krishnasamy