Patents by Inventor Steve Kranz

Steve Kranz 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).

  • Method for multivariate testing, development, and validation of a material for an additive manufacturing device
    Patent number: 12158432
    Abstract: A method includes: accessing a first selection of a first test variable; based on the selection, photocuring a first test build by varying a value of the first test variable over a first set of test regions; accessing a first set of measurements of the first test build; calculating a target range of the first test variable based on the first set of measurements; accessing a second selection of a second test variable; based on the second selection, photocuring a second test build by varying a value of the second test variable over a second set of test regions while maintaining a target value of the first test variable within the target range of the first test variable; accessing a second set of measurements of the second test build; and calculating a second target range of the second test variable based on the second set of measurements.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: December 3, 2024
    Assignee: Stratasys, Inc.
    Inventors: Joel Ong, Christopher Prucha, Steve Kranz, Eduardo González-Maldonado
  • METHOD FOR MULTIVARIATE TESTING, DEVELOPMENT, AND VALIDATION OF A MATERIAL FOR AN ADDITIVE MANUFACTURING DEVICE
    Publication number: 20210247325
    Abstract: A method includes: accessing a first selection of a first test variable; based on the selection, photocuring a first test build by varying a value of the first test variable over a first set of test regions; accessing a first set of measurements of the first test build; calculating a target range of the first test variable based on the first set of measurements; accessing a second selection of a second test variable; based on the second selection, photocuring a second test build by varying a value of the second test variable over a second set of test regions while maintaining a target value of the first test variable within the target range of the first test variable; accessing a second set of measurements of the second test build; and calculating a second target range of the second test variable based on the second set of measurements.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 12, 2021
    Inventors: Joel Ong, Christopher Prucha, Steve Kranz, Eduardo González-Maldonado
  • Current magnitude variation correction for open loop stepper motor driver circuit
    Patent number: 6441579
    Abstract: An available input of to a motor controller is used to measure the motor power supply voltage. Typically, a scaled down version of the voltage is sensed. The microprocessor is used to calculate the motor control current, in that case, is then calculated from the scaled down version. A scale factor that depends upon the sensitivity of the motor current to the motor supply voltage is calculated by the microprocessor. Driving parameters in the controller are then adjusted to account for the scale factor. In a preferred embodiment, the driving parameters are PWM parameters, and the microprocessor multiplies the measured power supply voltage to obtain a scale factor that can then be multiplied by the nominal PWM values to obtain the new PWM values.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: August 27, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Curt Van Lydegraf, Steve Gothard, Steve Kranz, Gary T. Brown
  • CURRENT MAGNITUDE VARIATION CORRECTION FOR OPEN LOOP STEPPER MOTOR DRIVER CIRCUIT
    Publication number: 20020101215
    Abstract: An available input of to a motor controller is used to measure the motor power supply voltage. Typically, a scaled down version of the voltage is sensed. The microprocessor is used to calculate the motor control current, in that case, is then calculated from the scaled down version. A scale factor that depends upon the sensitivity of the motor current to the motor supply voltage is calculated by the microprocessor. Driving parameters in the controller are then adjusted to account for the scale factor. In a preferred embodiment, the driving parameters are PWM parameters, and the microprocessor multiplies the measured power supply voltage to obtain a scale factor that can then be multiplied by the nominal PWM values to obtain the new PWM values.
    Type: Application
    Filed: January 26, 2001
    Publication date: August 1, 2002
    Inventors: Curt Van Lydegraf, Steve Gothard, Steve Kranz, Gary T. Brown