Patents by Inventor Chiaki Kawahara

Chiaki Kawahara 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: 11975406
    Abstract: A moving mechanism relatively moves a machining head emitting a laser beam, with respect to a sheet metal along a surface of the sheet metal. A beam vibrating mechanism vibrates the laser beam for irradiation on the sheet metal, while the machining head is relatively moved by the moving mechanism. A machining condition setting section sets pattern selection information to select a vibration pattern of the laser beam by the beam vibrating mechanism, and a parameter to determine a vibrating way in the vibration pattern, in accordance with machining conditions specified for each machining command to machine the sheet metal in a machining program generated to machine the sheet metal, and including a machining velocity of the sheet metal associated with relative movement of the machining head by the moving mechanism.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 7, 2024
    Assignee: AMADA CO., LTD.
    Inventors: Yoichi Tanaka, Chiaki Kawahara, Koji Funaki, Hideyuki Watanabe
  • Patent number: 11666991
    Abstract: A moving mechanism relatively moves a machining head emitting a laser beam, with respect to a sheet metal along a surface of the sheet metal. A beam vibrating mechanism vibrates the laser beam for irradiation on the sheet metal in a predetermined vibration pattern, while the machining head is relatively moved by the moving mechanism. A vibration control section controls the beam vibrating mechanism to progressively reduce an amplitude of the vibration pattern from a first position to a corner portion when the machining head moves toward the corner portion and reaches the first position before the corner portion by a predetermined distance, and progressively increase the amplitude of the vibration pattern until the machining head reaches a second position ahead of the corner portion by the predetermined distance from the corner portion, at a time of producing a product having the corner portion.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: June 6, 2023
    Assignee: AMADA CO., LTD.
    Inventors: Yoichi Tanaka, Chiaki Kawahara
  • Publication number: 20220410313
    Abstract: An interpolation parameter calculation unit calculates an interpolation parameter of a predetermined interpolation calculation formula based on a first plurality of coordinate values input by means of a coordinate input unit and constituting a coordinate pattern for determining a locus pattern of one cycle when a laser beam is vibrated. A locus pattern calculation unit calculates a second plurality of coordinate values constituting the locus pattern based on an interpolation parameter, respective amplitudes of the locus pattern in an x-axis direction that is a moving direction of a processing head and a y-axis direction that is a direction orthogonal to the x-axis direction, a frequency of the locus pattern, and a control cycle of a beam vibration mechanism for vibrating the laser beam.
    Type: Application
    Filed: November 30, 2020
    Publication date: December 29, 2022
    Inventors: Chiaki KAWAHARA, Tomohiro NISHIMURA, Shin IRIE
  • Publication number: 20220001489
    Abstract: A moving mechanism relatively moves a machining head emitting a laser beam, with respect to a sheet metal along a surface of the sheet metal. A beam vibrating mechanism vibrates the laser beam for irradiation on the sheet metal, while the machining head is relatively moved by the moving mechanism. A machining condition setting section sets pattern selection information to select a vibration pattern of the laser beam by the beam vibrating mechanism, and a parameter to determine a vibrating way in the vibration pattern, in accordance with machining conditions specified for each machining command to machine the sheet metal in a machining program generated to machine the sheet metal, and including a machining velocity of the sheet metal associated with relative movement of the machining head by the moving mechanism.
    Type: Application
    Filed: October 8, 2019
    Publication date: January 6, 2022
    Inventors: Yoichi TANAKA, Chiaki KAWAHARA, Koji FUNAKI, Hideyuki WATANABE
  • Publication number: 20210354244
    Abstract: A moving mechanism relatively moves a machining head that emits a laser beam from an opening of a nozzle with respect to a sheet metal along a surface of the sheet metal to produce a product having a predetermined shape by cutting the sheet metal. A beam vibration/displacement mechanism vibrates or displaces the laser beam with which the sheet metal is irradiated to produce the product while relatively moving the machining head by the moving mechanism. A moving mechanism control section controls the moving mechanism to relatively move the machining head with a first control period. The vibration/displacement control section controls the beam vibration/displacement mechanism to vibrate or displace the laser beam with a second control period shorter than the first control period.
    Type: Application
    Filed: October 21, 2019
    Publication date: November 18, 2021
    Inventors: Yoichi TANAKA, Chiaki KAWAHARA, Koji FUNAKI, Kazuya MAKIGUCHI
  • Publication number: 20210339342
    Abstract: A moving mechanism relatively moves a machining head emitting a laser beam, with respect to a sheet metal along a surface of the sheet metal. A beam vibrating mechanism vibrates the laser beam for irradiation on the sheet metal in a predetermined vibration pattern, while the machining head is relatively moved by the moving mechanism. A vibration control section controls the beam vibrating mechanism to progressively reduce an amplitude of the vibration pattern from a first position to a corner portion when the machining head moves toward the corner portion and reaches the first position before the corner portion by a predetermined distance, and progressively increase the amplitude of the vibration pattern until the machining head reaches a second position ahead of the corner portion by the predetermined distance from the corner portion, at a time of producing a product having the corner portion.
    Type: Application
    Filed: October 8, 2019
    Publication date: November 4, 2021
    Inventors: Yoichi TANAKA, Chiaki KAWAHARA
  • Publication number: 20050144608
    Abstract: The present invention provides a device driver that loads dynamic link libraries, which include the RTOS function and real-time applications, into the kernel space and starts the dynamic link libraries. The RTOS function and real-time applications are configured as dynamic link libraries. The device driver loads into the kernel space a dynamic link library and other dynamic link libraries referenced by the dynamic link library, adjusts address information on the basis of relocation information, resolves external references, acquires symbol information indicating a start function, and starts the start function.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 30, 2005
    Inventors: Hiroshi Oyama, Chiaki Kawahara, Koji Tanaka, Toru Terada