Patents by Inventor Sivaraj Sivarama Krishnan

Sivaraj Sivarama Krishnan 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: 20040019402
    Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.
    Type: Application
    Filed: September 18, 2002
    Publication date: January 29, 2004
    Applicants: AMADA AMERICA, INC., AMADA COMPANY, LTD.
    Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
  • Patent number: 6507767
    Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: January 14, 2003
    Assignees: Amada America, Inc., Amada Company, Ltd.
    Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
  • Patent number: 6493607
    Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 10, 2002
    Assignees: Amada America, Inc., Amada Company, Ltd.
    Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan
  • Publication number: 20020016647
    Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 7, 2002
    Applicant: AMADA AMERICA, Inc.
    Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
  • Patent number: 6341243
    Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail the bending apparatus.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: January 22, 2002
    Assignees: Amada America, Inc., Amada Company, Ltd.
    Inventors: David Allan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
  • Patent number: 5969973
    Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: October 19, 1999
    Assignees: Amada Company, Ltd., Amada America, Inc.
    Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
  • Patent number: 5889926
    Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: March 30, 1999
    Assignees: Amada America, Inc., Amada Company, Ltd.
    Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan
  • Patent number: 5835684
    Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: November 10, 1998
    Assignees: Amada Company, Ltd., Amada America, Inc.
    Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan