Patents by Inventor Tomokazu Goto
Tomokazu Goto 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: 11926510Abstract: This crane is provided with: a operable functional unit; an actuator; a generation unit that generates a first control signal including a first deceleration signal section composed of a control signal for decelerating a speed of the operable functional unit from a first speed to a second speed and a first constant-speed signal section composed of a control signal for maintaining the speed of the operable functional unit at the second speed; a filter unit for filtering the first control signal to generate a second control signal; and a control unit that controls the actuator so as to decelerate the operable functional unit based on the second control signal, then controls the actuator so as to maintain the speed at the second speed, and controls the actuator so as to zero the speed when a load has been moved to a location satisfying a prescribed condition.Type: GrantFiled: February 28, 2019Date of Patent: March 12, 2024Assignee: TADANO LTD.Inventors: Tomokazu Goto, Shinsuke Kanda, Kazuma Mizuki
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Patent number: 11542126Abstract: This crane is provided with: a boom; a wire rope suspended down from a leading end section of the boom; a suspender that is fixed to a lower end of the wire rope and is for suspending a slinging tool for hanging a load; a calculation unit that calculates a first load, which is the weight of a member that is suspended down from the suspender; a slinging tool database unit that stores information pertaining to the slinging tool corresponding to the first load; a determination unit that determines whether a load is being suspended from the suspender; and a control unit that acquires the information pertaining to the slinging tool corresponding to the first load from the slinging tool database unit if the load is being suspended, and sets the vertical length of the slinging tool on the basis of the acquired information pertaining to the slinging tool.Type: GrantFiled: February 25, 2019Date of Patent: January 3, 2023Assignee: TADANO LTD.Inventors: Tomokazu Goto, Shinsuke Kanda, Kazuma Mizuki
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Patent number: 11434111Abstract: A crane calculates the resonance frequency of the fluctuation of a suspended load determined from the hanging length of a main wire rope or a sub wire rope, generates a control signal for actuators, in accordance with the operation of a turning operation tool, a hoisting operation tool and the like, and generates a filtering control signal for the actuators in which a frequency component in any frequency range has been attenuated from the control signal at any ratio in reference to the resonance frequency. When the actuators are controlled by the operation of the respective operation tool and when the actuators are controlled regardless of the operation of the respective operation tool, the frequency range to be attenuated and the attenuation ratio are switched to different settings.Type: GrantFiled: June 13, 2018Date of Patent: September 6, 2022Assignee: TADANO LTD.Inventors: Shinsuke Kanda, Kazuma Mizuki, Tatsuya Yanagisawa, Tomokazu Goto
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Patent number: 11267681Abstract: This crane is provided with: a operable functional unit; an operation unit for receiving an operation input for operating the operable functional unit; an actuator that drives the operable functional unit; a first generation unit that generates a first control signal for the actuator on the basis of the operation input; a switch unit that can be switched between a first state and a second state; a first filter unit that filters the first control signal to generate a second control signal when the switch unit is in the second state; and a control unit that controls the actuator on the basis of the first control signal when the switch unit is in the first state, and controls the actuator on the basis of the second control signal when the switch unit is in the second state.Type: GrantFiled: February 28, 2019Date of Patent: March 8, 2022Assignee: TADANO LTD.Inventors: Tomokazu Goto, Shinsuke Kanda, Kazuma Mizuki
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Publication number: 20210053800Abstract: This crane is provided with: a operable functional unit; an operation unit for receiving an operation input for operating the operable functional unit; an actuator that drives the operable functional unit; a first generation unit that generates a first control signal for the actuator on the basis of the operation input; a switch unit that can be switched between a first state and a second state; a first filter unit that filters the first control signal to generate a second control signal when the switch unit is in the second state; and a control unit that controls the actuator on the basis of the first control signal when the switch unit is in the first state, and controls the actuator on the basis of the second control signal when the switch unit is in the second state.Type: ApplicationFiled: February 28, 2019Publication date: February 25, 2021Applicant: TADANO LTD.Inventors: Tomokazu GOTO, Shinsuke KANDA, Kazuma MIZUKI
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Publication number: 20210047152Abstract: This crane is provided with: a operable functional unit; an actuator; a generation unit that generates a first control signal including a first deceleration signal section composed of a control signal for decelerating a speed of the operable functional unit from a first speed to a second speed and a first constant-speed signal section composed of a control signal for maintaining the speed of the operable functional unit at the second speed; a filter unit for filtering the first control signal to generate a second control signal; and a control unit that controls the actuator so as to decelerate the operable functional unit based on the second control signal, then controls the actuator so as to maintain the speed at the second speed, and controls the actuator so as to zero the speed when a load has been moved to a location satisfying a prescribed condition.Type: ApplicationFiled: February 28, 2019Publication date: February 18, 2021Applicant: TADANO LTD.Inventors: Tomokazu GOTO, Shinsuke KANDA, Kazuma MIZUKI
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Publication number: 20210047151Abstract: This crane is provided with: a boom; a wire rope suspended down from a leading end section of the boom; a suspender that is fixed to a lower end of the wire rope and is for suspending a slinging tool for hanging a load; a calculation unit that calculates a first load, which is the weight of a member that is suspended down from the suspender; a slinging tool database unit that stores information pertaining to the slinging tool corresponding to the first load; a determination unit that determines whether a load is being suspended from the suspender; and a control unit that acquires the information pertaining to the slinging tool corresponding to the first load from the slinging tool database unit if the load is being suspended, and sets the vertical length of the slinging tool on the basis of the acquired information pertaining to the slinging tool.Type: ApplicationFiled: February 25, 2019Publication date: February 18, 2021Applicant: TADANO LTD.Inventors: Tomokazu GOTO, Shinsuke KANDA, Kazuma MIZUKI
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Publication number: 20200031633Abstract: A crane calculates the resonance frequency of the fluctuation of a suspended load determined from the hanging length of a main wire rope or a sub wire rope, generates a control signal for actuators, in accordance with the operation of a turning operation tool, a hoisting operation tool and the like, and generates a filtering control signal for the actuators in which a frequency component in any frequency range has been attenuated from the control signal at any ratio in reference to the resonance frequency. When the actuators are controlled by the operation of the respective operation tool and when the actuators are controlled regardless of the operation of the respective operation tool, the frequency range to be attenuated and the attenuation ratio are switched to different settings.Type: ApplicationFiled: June 13, 2018Publication date: January 30, 2020Applicant: TADANO LTD.Inventors: Shinsuke KANDA, Kazuma MIZUKI, Tatsuya YANAGISAWA, Tomokazu GOTO
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Patent number: 6989401Abstract: The present invention relates to a novel sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof. More particularly, the present invention relates to a sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof, which is useful as an inhibitor of lipopolysaccharides (LPS). In addition, the present invention relates to a novel intermediate compound useful for the synthesis of this sulfonic acid derivative of hydroxamic acid.Type: GrantFiled: July 19, 2001Date of Patent: January 24, 2006Assignee: Mitsubishi Pharma CorporationInventors: Kazuhiro Maeda, Shuji Sonda, Tadahiro Takemoto, Tomokazu Goto, Fujio Kobayashi, Masahiko Kajii, Naruyasu Komorita, Fumihiro Hirayama
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Publication number: 20030176486Abstract: The present invention relates to a novel sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof. More particularly, the present invention relates to a sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof, which is useful as an inhibitor of lipopolysaccharides (LPS). In addition, the present invention relates to a novel intermediate compound useful for the synthesis of this sulfonic acid derivative of hydroxamic acid.Type: ApplicationFiled: February 14, 2003Publication date: September 18, 2003Inventors: Kazuhiro Maeda, Shuji Sonda, Tadahiro Takemoto, Tomokazu Goto, Fujio Kobayashi, Masahiko Kajii, Naruyasu Komorita, Fumihiro Hirayama