Patents by Inventor Yusuke Kamimura
Yusuke Kamimura 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: 10527731Abstract: When an object detected by a distance measuring sensor is located in a monitoring region set in a blind spot of an operator, an obstacle determination section determines the detected object as an obstacle. Then, the obstacle determination section sets a monitoring region so that a region indicating a lower travelling body (2) is excluded according to a slewing angle detected by an angle sensor. Based on the slewing angle detected by the angle sensor, a stop control section determines a component, of at least one of the lower travelling body and an upper slewing body, which has a possibility that a construction machine collides with the obstacle when the component is operated, and stops operation of the determined component.Type: GrantFiled: June 14, 2017Date of Patent: January 7, 2020Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Akira Kinoshita, Yusuke Kamimura
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Publication number: 20190170879Abstract: When an object detected by a distance measuring sensor is located in a monitoring region set in a blind spot of an operator, an obstacle determination section determines the detected object as an obstacle. Then, the obstacle determination section sets a monitoring region so that a region indicating a lower travelling body (2) is excluded according to a slewing angle detected by an angle sensor. Based on the slewing angle detected by the angle sensor, a stop control section determines a component, of at least one of the lower travelling body and an upper slewing body, which has a possibility that a construction machine collides with the obstacle when the component is operated, and stops operation of the determined component.Type: ApplicationFiled: June 14, 2017Publication date: June 6, 2019Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Akira KINOSHITA, Yusuke KAMIMURA
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Patent number: 10207372Abstract: An aluminum composite material includes a first metallic plate, a second metallic plate, and a matrix material that is interposed between the first metallic plate and the second metallic plate and is formed of aluminum powder. Gadolinium oxide particles are dispersed in the matrix material.Type: GrantFiled: August 15, 2014Date of Patent: February 19, 2019Assignees: Nippon Light Metal Company, Ltd., Nikkeikin Aluminum Core Technology Co., Ltd.Inventors: Yusuke Kamimura, Shingo Koizumi, Daisuke Nagasawa, Toshiaki Yamazaki
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Publication number: 20180274206Abstract: An object is to suppress erroneous determination of a lower travelling body as an obstacle even when a turn angle is changed and to detect an obstacle being present in the vicinity of the lower travelling body. The control section 41 determines a monitoring region R, a region in which an obstacle is to be monitored, the monitoring region R not including the lower travelling body 10. The control section 41 changes the monitoring region R so as not to include the lower travelling body 10 based on a turn angle ? detected by the turn angle detection section 45. The control section 41 limits operation of at least one of travelling of the lower travelling body 10 and turning of the upper slewing body 20 when the obstacle detection section 50 detects an obstacle being present in the monitoring region R.Type: ApplicationFiled: March 19, 2018Publication date: September 27, 2018Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Masatoshi KOZUI, Yusuke KAMIMURA, Akira KINOSHITA
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Publication number: 20180154448Abstract: An aluminum composite material includes a first metallic plate, a second metallic plate, and a matrix material that is interposed between the first metallic plate and the second metallic plate and is formed of aluminum powder. Gadolinium oxide particles are dispersed in the matrix material.Type: ApplicationFiled: July 14, 2017Publication date: June 7, 2018Inventors: Yusuke KAMIMURA, Shingo KOIZUMI, Daisuke NAGASAWA, Toshiaki YAMAZAKI
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Patent number: 9873349Abstract: A first warming-up control unit calculates warming-up time charging power from a power storage SOC and power storage temperature and causes a generator motor to perform power generation operation thereby charging a power storage unit on the basis of the calculated warming-up time charging power. A second warming-up control unit applies, during the power generation operation, a hydraulic load to a hydraulic pump by a hydraulic load unit and performs horsepower control of the hydraulic pump using a value obtained by subtracting the warming-up time charging power from preset warming-up time pump horsepower.Type: GrantFiled: February 2, 2016Date of Patent: January 23, 2018Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takayuki Doi, Yusuke Kamimura
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Patent number: 9556587Abstract: A control unit as a hybrid device is provided on a right side deck of an upper slewing body. The control unit has a quadrangular shape in a plan view thereof, and both electric wires and liquid pipelines for cooling or heating the control unit are connected to the control unit. Connection terminals and pipeline connection openings of the control unit are provided on surfaces that form the sides of the quadrangle in a plan view of the casing and that are oriented in different directions.Type: GrantFiled: July 2, 2015Date of Patent: January 31, 2017Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Akira Nakazumi, Yusuke Kamimura
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Patent number: 9528245Abstract: The invention provides a rotation control device capable of reducing a loss of a power of a hydraulic pump in a backward direction operation and also provides a construction machine including the same. The controller controls a capacity of the hydraulic pump such that, in a forward direction operation in which an operating direction detected by the operation sensor and a rotating direction detected by a rotation sensor coincide with each other, the capacity of the hydraulic pump is increased in accordance with an increase in the operation amount detected by an operation sensor, on the other hand, restricts the capacity of the hydraulic pump more in a backward direction operation, in which the operating direction detected by the operation sensor and the rotating direction detected by the rotation sensor are reverse to each other, than in the forward direction operation.Type: GrantFiled: December 18, 2013Date of Patent: December 27, 2016Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Naoki Goto, Koji Ueda, Yusuke Kamimura
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Patent number: 9506220Abstract: Provided is a slewing-type working machine capable of reducing back pressure generated during slewing.Type: GrantFiled: July 23, 2014Date of Patent: November 29, 2016Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Yusuke Kamimura
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Publication number: 20160250936Abstract: A first warming-up control unit calculates warming-up time charging power from a power storage SOC and power storage temperature and causes a generator motor to perform power generation operation thereby charging a power storage unit on the basis of the calculated warming-up time charging power. A second warming-up control unit applies, during the power generation operation, a hydraulic load to a hydraulic pump by a hydraulic load unit and performs horsepower control of the hydraulic pump using a value obtained by subtracting the warming-up time charging power from preset warming-up time pump horsepower.Type: ApplicationFiled: February 2, 2016Publication date: September 1, 2016Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takayuki DOI, Yusuke KAMIMURA
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Publication number: 20160199948Abstract: An aluminum composite material includes a first metallic plate, a second metallic plate, and a matrix material that is interposed between the first metallic plate and the second metallic plate and is formed of aluminum powder. Gadolinium oxide particles are dispersed in the matrix material.Type: ApplicationFiled: August 15, 2014Publication date: July 14, 2016Inventors: Yusuke KAMIMURA, Shingo KOIZUMI, Daisuke NAGASAWA, Toshiaki YAMAZAKI
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Patent number: 9287808Abstract: There is obtained a configuration capable of rapidly decelerating a motor even if a failure occurs in the communication between a controller and a motor control unit in a motor controller in which a speed command is input from the controller to the motor control unit. A motor controller 1 is provided with a main controller 2, and a motor control unit 3 configured to be communicable with the main controller 2 to drive a motor M according to a torque command output from the main controller 2. The motor control unit 3 includes a speed control unit 31 for outputting a torque command, so as to decelerate the motor M, if any failure occurs in communication with the main controller 2 while the motor M is being driven.Type: GrantFiled: May 29, 2014Date of Patent: March 15, 2016Assignees: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeo Ito, Hideaki Moriya, Takeshi Tomizaki, Akira Nakazumi, Yusuke Kamimura
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Patent number: 9276512Abstract: There is provided a motor controller capable of suppressing the rotation of a motor at the time of discharging an electric accumulator, and a construction machine provided with the motor controller. A motor controller 10 is provided with a current controller 1 for controlling an electric current supplied from an electric accumulator E to a motor M, and a rotation detector 2 for detecting the rotation of the motor M. The current controller 1 supplies only a d-axis current to the motor M according to a discharge command. If the rotation of the motor M is detected by the rotation detector 2 at the time of discharging the electric accumulator E, the current controller 1 controls the d-axis current so as to suppress the rotation of the motor M.Type: GrantFiled: May 29, 2014Date of Patent: March 1, 2016Assignees: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeshi Tomizaki, Yuichi Hamaguchi, Takeo Ito, Akira Nakazumi, Yusuke Kamimura
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Patent number: 9276508Abstract: An object of the present invention is to provide an inverter device for driving an electric motor, which allows control stability and efficiency to be ensured over a wide region of the speed of the electric motor. The inverter device includes a rotational-speed detection section which detects a rotational speed of the electric motor, a carrier-frequency calculation section which calculates a carrier frequency on the basis of the detected rotational speed, and a carrier-frequency switching section which switches, on the basis of the calculated carrier frequency, the carrier frequency used for performing PWM control on the electric motor. The carrier-frequency calculation section calculates, as the carrier frequency, a frequency increased with an increase in the electric-motor rotational speed detected by the rotational-speed detection section.Type: GrantFiled: May 29, 2014Date of Patent: March 1, 2016Assignees: KOBELCO CONSTRUCTION MACHINERY CO., LTD., SINFONIA TECHNOLOGY CO., LTD.Inventors: Akira Nakazumi, Yusuke Kamimura, Hiroyuki Suminaga, Takeshi Tomizaki, Hideaki Moriya
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Publication number: 20160017572Abstract: A control unit as a hybrid device is provided on a right side deck of an upper slewing body. The control unit has a quadrangular shape in a plan view thereof, and both electric wires and liquid pipelines for cooling or heating the control unit are connected to the control unit. Connection terminals and pipeline connection openings of the control unit are provided on surfaces that form the sides of the quadrangle in a plan view of the casing and that are oriented in different directions.Type: ApplicationFiled: July 2, 2015Publication date: January 21, 2016Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Akira NAKAZUMI, Yusuke KAMIMURA
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Publication number: 20150104666Abstract: A metal-based composite material which has a sufficient radiation absorption function, also has excellent strength, corrosion resistance, processability, impact resistance and heat conductivity, and is inexpensive. A metal-based composite material having such a double-clad structure that a core material is sandwiched between a pair of skin materials each composed of an aluminum plate in such a manner that the core material is closely adhered to the skin materials, wherein the core material comprises a matrix produced by consolidating an aluminum powder by applying a pressure and tungsten particles dispersed in the matrix, and wherein the tungsten particles are contained in the core material in an amount of 5 to 70 vol %. A method for producing a metal-based composite material, which comprises filling a mixed powder of an aluminum powder that constitutes a matrix and tungsten particles into an aluminum case and then extending the mixed powder by applying a pressure.Type: ApplicationFiled: August 30, 2013Publication date: April 16, 2015Applicants: Nikkeikin Aluminum Core Technology Co., Ltd., Nippon Light Metal Company, Ltd.Inventors: Yusuke Kamimura, Shingo Koizumi, Masaki Iino, Kazuto Sandra
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Publication number: 20140354197Abstract: There is obtained a configuration capable of rapidly decelerating a motor even if a failure occurs in the communication between a controller and a motor control unit in a motor controller in which a speed command is input from the controller to the motor control unit. A motor controller 1 is provided with a main controller 2, and a motor control unit 3 configured to be communicable with the main controller 2 to drive a motor M according to a torque command output from the main controller 2. The motor control unit 3 includes a speed control unit 31 for outputting a torque command, so as to decelerate the motor M, if any failure occurs in communication with the main controller 2 while the motor M is being driven.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeo Ito, Hideaki Moriya, Takeshi Tomizaki, Akira Nakazumi, Yusuke Kamimura
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Publication number: 20140354205Abstract: There is provided a motor controller capable of suppressing the rotation of a motor at the time of discharging an electric accumulator, and a construction machine provided with the motor controller. A motor controller 10 is provided with a current controller 1 for controlling an electric current supplied from an electric accumulator E to a motor M, and a rotation detector 2 for detecting the rotation of the motor M. The current controller 1 supplies only a d-axis current to the motor M according to a discharge command. If the rotation of the motor M is detected by the rotation detector 2 at the time of discharging the electric accumulator E, the current controller 1 controls the d-axis current so as to suppress the rotation of the motor M.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicants: SINFONIA TECHNOLOGY CO., LTD., KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeshi Tomizaki, Yuichi Hamaguchi, Takeo Ito, Akira Nakazumi, Yusuke Kamimura
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Publication number: 20140354191Abstract: An object of the present invention is to provide an inverter device for driving an electric motor, which allows control stability and efficiency to be ensured over a wide region of the speed of the electric motor. The inverter device includes a rotational-speed detection section which detects a rotational speed of the electric motor, a carrier-frequency calculation section which calculates a carrier frequency on the basis of the detected rotational speed, and a carrier-frequency switching section which switches, on the basis of the calculated carrier frequency, the carrier frequency used for performing PWM control on the electric motor. The carrier-frequency calculation section calculates, as the carrier frequency, a frequency increased with an increase in the electric-motor rotational speed detected by the rotational-speed detection section.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicants: KOBELCO CONSTRUCTION MACHINERY CO., LTD., SINFONIA TECHNOLOGY CO., LTD.Inventors: Akira NAKAZUMI, Yusuke KAMIMURA, Hiroyuki SUMINAGA, Takeshi TOMIZAKI, Hideaki MORIYA
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Publication number: 20140331664Abstract: Provided is a slewing-type working machine capable of reducing back pressure generated during slewing.Type: ApplicationFiled: July 23, 2014Publication date: November 13, 2014Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Yusuke KAMIMURA