Patents by Inventor Satoshi Kagiwada
Satoshi Kagiwada 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).
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Patent number: 11289874Abstract: A control device that can apply a laser oscillator control device to various types of systems. The control device includes an analog signal input unit configured to receive an output control signal for controlling a laser output of the laser oscillator or a mode control signal for controlling an operation mode of the laser oscillator as an analog signal; a digital signal input unit configured to receive the output control signal or the mode control signal as a digital signal; and a controller configured to transmit a laser command for controlling the laser output to the laser oscillator in response to the output control signal received by the analog signal input unit or the digital signal input unit, and transmit an operation command for operating the laser oscillator to the laser oscillator in the operation mode in response to the mode control signal received by the analog signal input unit or the digital signal input unit.Type: GrantFiled: July 15, 2020Date of Patent: March 29, 2022Assignee: Fanuc CorporationInventor: Satoshi Kagiwada
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Publication number: 20210028594Abstract: A control device that can apply a laser oscillator control device to various types of systems. The control device includes an analog signal input unit configured to receive an output control signal for controlling a laser output of the laser oscillator or a mode control signal for controlling an operation mode of the laser oscillator as an analog signal; a digital signal input unit configured to receive the output control signal or the mode control signal as a digital signal; and a controller configured to transmit a laser command for controlling the laser output to the laser oscillator in response to the output control signal received by the analog signal input unit or the digital signal input unit, and transmit an operation command for operating the laser oscillator to the laser oscillator in the operation mode in response to the mode control signal received by the analog signal input unit or the digital signal input unit.Type: ApplicationFiled: July 15, 2020Publication date: January 28, 2021Applicant: Fanuc CorporationInventor: Satoshi Kagiwada
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Patent number: 10033150Abstract: Even when a light source is driven under various conditions, an effective driving time is accurately calculated. A laser apparatus includes a light source, a power source which charges driving current to the light source, a control unit for controlling the power source, a first recording unit which calculates a life load rate of the light source and records the same in association with time, and a calculation unit which calculates, as an effective driving time, a time integration of the life load rate between a first time point, at which the laser apparatus is actually driven, and a second time point after the first time point, based on a recording result of the first recording unit.Type: GrantFiled: April 19, 2017Date of Patent: July 24, 2018Assignee: FANUC CORPORATIONInventors: Satoshi Kagiwada, Hiroshi Takigawa
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Patent number: 9887514Abstract: A first calculation unit calculates an acceleration factor of lifetime consumption of the light source with as case of a standard temperature and standard drive condition as a reference, a second calculation unit calculates a whole lifetime or remaining lifetime of individual light sources relative to a performance index of the individual light sources or a change rate of the performance index, a computation unit obtains an effective cumulative driving time at which the magnitude of influence imparted on the lifetime is equivalent with a case of driving at the standard temperature and standard drive condition, by calculating a time integral of the acceleration factor, and a recording unit records the effective cumulative driving time and the whole lifetime or remaining lifetime together with an optical output characteristic of the light source.Type: GrantFiled: July 3, 2017Date of Patent: February 6, 2018Assignee: FANUC CORPORATIONInventors: Hiroshi Takigawa, Satoshi Kagiwada
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Publication number: 20180013259Abstract: A first calculation unit calculates an acceleration factor of lifetime consumption of the light source with as case of a standard temperature and standard drive condition as a reference, a second calculation unit calculates a whole lifetime or remaining lifetime of individual light sources relative to a performance index of the individual light sources or a change rate of the performance index, a computation unit obtains an effective cumulative driving time at which the magnitude of influence imparted on the lifetime is equivalent with a case of driving at the standard temperature and standard drive condition, by calculating a time integral of the acceleration factor, and a recording unit records the effective cumulative driving time and the whole lifetime or remaining lifetime together with an optical output characteristic of the light source.Type: ApplicationFiled: July 3, 2017Publication date: January 11, 2018Applicant: FANUC CORPORATIONInventors: Hiroshi TAKIGAWA, Satoshi KAGIWADA
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Publication number: 20170310074Abstract: Even when a light source is driven under various conditions, an effective driving time is accurately calculated. A laser apparatus includes a light source, a power source which charges driving current to the light source, a control unit for controlling the power source, a first recording unit which calculates a life load rate of the light source and records the same in association with time, and a calculation unit which calculates, as an effective driving time, a time integration of the life load rate between a first time point, at which the laser apparatus is actually driven, and a second time point after the first time point, based on a recording result of the first recording unit.Type: ApplicationFiled: April 19, 2017Publication date: October 26, 2017Applicant: FANUC CORPORATIONInventors: Satoshi Kagiwada, Hiroshi Takigawa
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Patent number: 8675707Abstract: Disclosed is a gas laser apparatus having: a first estimation unit which calculates an estimate of input power to the laser power supply device by using the output current value and output voltage value of the DC power supply unit and also using the efficiency of conversion from input power to output power by the DC power supply unit; a second estimation unit which calculates an estimate of input power to the driving device by using the output current value of the driving device; and a power calculation unit which calculates the power consumption value of the gas laser apparatus, based on the estimate of the input power to the laser power supply device and the estimate of the input power to the driving device.Type: GrantFiled: June 25, 2012Date of Patent: March 18, 2014Assignee: Fanuc CorporationInventors: Satoshi Kagiwada, Yoshitaka Kubo
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Publication number: 20130039377Abstract: Disclosed is a gas laser apparatus having: a first estimation unit which calculates an estimate of input power to the laser power supply device by using the output current value and output voltage value of the DC power supply unit and also using the efficiency of conversion from input power to output power by the DC power supply unit; a second estimation unit which calculates an estimate of input power to the driving device by using the output current value of the driving device; and a power calculation unit which calculates the power consumption value of the gas laser apparatus, based on the estimate of the input power to the laser power supply device and the estimate of the input power to the driving device.Type: ApplicationFiled: June 25, 2012Publication date: February 14, 2013Applicant: FANUC CORPORATIONInventors: Satoshi KAGIWADA, Yoshitaka KUBO
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Patent number: 7830935Abstract: A laser (10) provided with a discharge activation power supply (11) supplied with power from a 3-phase AC power line, the discharge activation power supply (11) provided inside it with three first capacitors (12a, 12b, and 12c), the laser (10) including an external ground fault protection device comprising a voltage measuring unit using the first capacitors (12a, 12b, and 12c) to measure voltages between the phases of the 3-phase AC power line and the ground and a power breaking unit (18) comparing the values of voltages measured by the voltage measuring unit and a predetermined threshold and breaking the supply of power from the 3-phase AC power line to the power supply (11) when the value of a voltage exceeds the threshold.Type: GrantFiled: March 31, 2008Date of Patent: November 9, 2010Assignee: Fanuc LtdInventors: Minoru Ando, Eiji Kobayashi, Satoshi Kagiwada
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Publication number: 20080267235Abstract: A laser (10) provided with a discharge activation power supply (11) supplied with power from a 3-phase AC power line, the discharge activation power supply (11) provided inside it with three first capacitors (12a, 12b, and 12c), the laser (10) including an external ground fault protection device comprising a voltage measuring unit using the first capacitors (12a, 12b, and 12c) to measure voltages between the phases of the 3-phase AC power line and the ground and a power breaking unit (18) comparing the values of voltages measured by the voltage measuring unit and a predetermined threshold and breaking the supply of power from the 3-phase AC power line to the power supply (11) when the value of a voltage exceeds the threshold.Type: ApplicationFiled: March 31, 2008Publication date: October 30, 2008Inventors: Minoru Ando, Eiji Kobayashi, Satoshi Kagiwada