Patents by Inventor Koichiro Ueda
Koichiro Ueda 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: 8786245Abstract: A motor control device main unit includes a pressure command signal generation module, a simulated pressure control module, a simulated position calculation module, a simulated pressure signal generation module, a pressure control module, a speed control module, and a current control module. The speed control module receives a motor speed command signal, which is a signal of a sum of an actual motor speed command value of an actual motor speed command signal from the pressure control module and a simulated speed calculated value of a simulated motor speed signal. The speed control module carries out speed control calculation based on a motor speed command value of the motor speed command signal and an actual motor speed of an actual motor speed signal.Type: GrantFiled: May 10, 2011Date of Patent: July 22, 2014Assignee: Mitsubishi Electric CorporationInventors: Koichiro Ueda, Hidetoshi Ikeda
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Patent number: 8786219Abstract: A motor control device includes: a feedforward computing section for computing a motion reference value and a feedforward driving force based on a motion command; a deviation compensation computing section for outputting a deviation compensation driving force by a control computation for reducing a control deviation; a driving-force command synthesizing section for outputting a driving-force command based on the feedforward driving force and the deviation compensation driving force; a reaction-force compensation computing section for computing a motion correction value based on a predetermined reaction-force reference value and the deviation compensation driving force; and a control-deviation computing section for computing the control deviation based on a deviation between the motion reference value and a motor motion detection value, and the motion correction value.Type: GrantFiled: January 25, 2011Date of Patent: July 22, 2014Assignee: Mitsubishi Electric CorporationInventors: Hidetoshi Ikeda, Yoshihiro Marushita, Koichiro Ueda, Yuji Igarashi, Kiyoshi Maekawa
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Patent number: 8638058Abstract: In positioning control of a machine in which residual vibrations are caused due to a low mechanical rigidity, residual vibrations are suppressed within an allowable positioning error, and a positioning time period required for the positioning control is shortened. Based on information of operation conditions and residual vibrations, the amplitude of the residual vibrations of the machine is predicted before execution of positioning, and based on a result of the prediction, a first servo controller (11) which performs positioning control in which suppression of residual vibrations of the machine is not considered or a second servo controller (12) in which suppression of residual vibrations of the machine is considered is automatically selectively used.Type: GrantFiled: August 19, 2010Date of Patent: January 28, 2014Assignee: Mitsubishi Electric CorporationInventors: Koichiro Ueda, Kimiyuki Takahashi
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Publication number: 20130317653Abstract: An electronic cam control device includes an electronic-cam-curve generating unit configured to generate an electronic cam curve to pass a plurality of designated coordinates that define a relation between a main shaft position and a driven shaft position and an output unit configured to output the driven shaft position corresponding to the main shaft position. The electronic-cam-curve generating unit generates the electronic cam curve to include a section where a waveform of cam velocity obtained by differentiating the electronic cam curve with respect to the main shaft position changes to fixed cam velocity in each of regions, which are regions among the designated coordinates, and include a monotonous acceleration or deceleration section that connects sections where the waveform of the cam velocity changes to the fixed cam velocity by accelerating or decelerating while monotonously increasing or monotonously decreasing between adjacent regions.Type: ApplicationFiled: May 24, 2012Publication date: November 28, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koichiro Ueda, Yoshihiro Marushita, Kimihiro Mizuno
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Publication number: 20130160898Abstract: The present disclosure relates to a chemically treated zinc-based plated steel sheet that is superior in weather resistance, water resistance, blackening resistance and film adhesion. A chemical conversion film having a thickness 0.5-10 ?m is formed by coating and drying a chemical treatment solution on a surface of an aluminum-containing zinc-based alloy plated steel sheet. The chemical treatment solution contains a fluororesin containing 0.05-5% by weight of a hydrophilic functional group selected from the group consisting of a carboxyl group and a sulfonic acid group and 7-20% by weight of a fluorine atom, the fluororesin in which a number-average molecular weight is 1,000-2,000,000, and an oxoate, a fluoride, a hydroxide, an organic salt, a carbonate or a peroxygenated salt of a group 4A metal.Type: ApplicationFiled: June 17, 2011Publication date: June 27, 2013Applicant: NISSHIN STEEL CO., LTD.Inventors: Masanori Matsuno, Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu
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Publication number: 20130157076Abstract: Disclosed is a chemical conversion coated Al-plated steel sheet which has excellent weather resistance, water resistance and coating film adhesion. Specifically, a chemical conversion coating liquid is applied over and dried on the surface of an Al alloy-plated steel sheet, thereby forming a chemical conversion coating film that has a film thickness of 0.5-10 ?m. The chemical conversion coating liquid contains: a fluorine-containing olefin resin, which contains 7-20% by mass of F atoms and 0.05-5% by mass of hydrophilic functional groups that are selected from among a carboxyl group, a sulfonic acid group and salts of carboxyl group and sulfonic acid group and has a number average molecular weight within the range of 1,000-2,000,000; and an oxygen acid salt, fluoride, hydroxide, organic acid salt, carbonate or peroxygenated salt of a group 4A metal.Type: ApplicationFiled: June 17, 2011Publication date: June 20, 2013Applicant: NISSHIN STEEL CO., LTD.Inventors: Masanori Matsuno, Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu
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Publication number: 20130119916Abstract: A control signal for controlling an operation of a motion control system suitable for positioning a load is generated using determining a cost function based on a model of energy consumption of the system and a function of a tracking time; and minimizing the cost function subject to constraints to determine a trajectory of the control signal. The control signal is generated based on the trajectory and a current state of the system, wherein the steps of the method are performed by a processor.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Inventors: Yebin Wang, Koichiro Ueda, Scott A. Bortoff
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Publication number: 20130063068Abstract: A motor-control-device main unit includes a pressure-command-signal generating section, a pressure control section, a speed control section, a current control section, and a parameter-adjusting section. With respect to a parameter for a control computation by the pressure control section, the parameter-adjusting section includes an information-acquiring section and a parameter-calculating section. The information-acquiring section acquires, from an exterior, each of pieces of information including an elastic constant of a pressurized target, a reaction-force constant indicating information of a reaction force, a transfer characteristic from a motor torque to a motor speed, and parameters of the speed control section. The information-acquiring section previously acquires information of a control law of the speed control unit. The parameter-calculating section calculates a parameter for the pressure control section based on the information acquired by the information-acquiring section.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicant: Mitsubishi Electric CorporationInventors: Koichiro Ueda, Hidetoshi Ikeda
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Publication number: 20130033220Abstract: A motor control device main unit includes a pressure command signal generation module, a pressure control module, a speed control module, and a current control module. The pressure command signal generation module of the motor control device main unit generates a pressure command value so that a derivative of the pressure command value is equal to or less than a product of an elastic constant of the pressurized target and a maximum motor speed. The pressure control module carries out pressure control calculation to calculate a motor speed command value based on a deviation between the pressure command value and an actual pressure value, and generates a motor speed command signal, which is a signal of the motor speed command value.Type: ApplicationFiled: May 10, 2011Publication date: February 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Koichiro Ueda
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Publication number: 20130032961Abstract: To execute a stable pressure control, in a control device for an injection molding machine, a filling/pressure-keeping determining unit determines whether the injection molding machine is performing a pressure keeping operation, an elastic constant identifier acquires, when the filling/pressure-keeping determining unit determines that the pressure keeping operation is in progress, a pressure detection value and a position detection value as operation information of a motor and identifies an elastic constant K based on the acquired pressure detection value and the position detection value, and a pressure-control control-parameter setting unit calculates a proportional gain Ka of a pressure controller such that a product of the proportional gain Ka of the pressure controller and the elastic constant K is smaller than a speed control bandwidth ?sc of a speed controller, and sets the calculated proportional gain Ka to the pressure controller.Type: ApplicationFiled: August 1, 2011Publication date: February 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koichiro Ueda, Kiyoshi Hasegawa, Hidemasa Ogi, Yukihiko Kobayashi
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Publication number: 20130033221Abstract: A motor control device main unit includes a pressure command signal generation module, a simulated pressure control module, a simulated position calculation module, a simulated pressure signal generation module, a pressure control module, a speed control module, and a current control module. The speed control module receives a motor speed command signal, which is a signal of a sum of an actual motor speed command value of an actual motor speed command signal from the pressure control module and a simulated speed calculated value of a simulated motor speed signal. The speed control module carries out speed control calculation based on a motor speed command value of the motor speed command signal and an actual motor speed of an actual motor speed signal.Type: ApplicationFiled: May 10, 2011Publication date: February 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koichiro Ueda, Hidetoshi Ikeda
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Publication number: 20120306426Abstract: A motor control device includes: a feedforward computing section for computing a motion reference value and a feedforward driving force based on a motion command; a deviation compensation computing section for outputting a deviation compensation driving force by a control computation for reducing a control deviation; a driving-force command synthesizing section for outputting a driving-force command based on the feedforward driving force and the deviation compensation driving force; a reaction-force compensation computing section for computing a motion correction value based on a predetermined reaction-force reference value and the deviation compensation driving force; and a control-deviation computing section for computing the control deviation based on a deviation between the motion reference value and a motor motion detection value, and the motion correction value.Type: ApplicationFiled: January 25, 2011Publication date: December 6, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hidetoshi Ikeda, Yoshihiro Marushita, Koichiro Ueda, Yuji Igarashi, Kiyoshi Maekawa
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Publication number: 20120187891Abstract: In positioning control of a machine in which residual vibrations are caused due to a low mechanical rigidity, residual vibrations are suppressed within an allowable positioning error, and a positioning time period required for the positioning control is shortened. Based on information of operation conditions and residual vibrations, the amplitude of the residual vibrations of the machine is predicted before execution of positioning, and based on a result of the prediction, a first servo controller (11) which performs positioning control in which suppression of residual vibrations of the machine is not considered or a second servo controller (12) in which suppression of residual vibrations of the machine is considered is automatically selectively used.Type: ApplicationFiled: August 19, 2010Publication date: July 26, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koichiro Ueda, Kimiyuki Takahashi
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Patent number: 7785742Abstract: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, and 0?q?0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.Type: GrantFiled: April 22, 2008Date of Patent: August 31, 2010Assignee: Seimi Chemical Co., Ltd.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
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Patent number: 7778716Abstract: A command generating device includes a command shape calculating unit for calculating an nth derivative command shape which is a fixed multiple of the nth derivative with respect to time of a position command for causing a machine to reach a target position at a positioning time so that a convolution of a velocity command which is the first derivative with respect to time of the position command and the impulse response of a transfer function determined from the frequency of a vibration which occurs in the machine becomes equal to zero, the convolution being calculated over the time period from the positioning time onward, and an associating processing unit for integrating the nth derivative command shape n times with respect to time, and for multiplying the integral result by a constant which associates the position command at the positioning time with the target position so as to determine the position command.Type: GrantFiled: December 9, 2008Date of Patent: August 17, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
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Patent number: 7627387Abstract: A command generating device includes a command shape calculating unit for calculating an nth derivative command shape which is a fixed multiple of the nth derivative with respect to time of a position command for causing a machine to reach a target position at a positioning time so that a convolution of a velocity command which is the first derivative with respect to time of the position command and the impulse response of a transfer function determined from the frequency of a vibration which occurs in the machine becomes equal to zero, the convolution being calculated over the time period from the positioning time onward, and an associating processing unit for integrating the nth derivative command shape n times with respect to time, and for multiplying the integral result by a constant which associates the position command at the positioning time with the target position so as to determine the position command.Type: GrantFiled: October 14, 2005Date of Patent: December 1, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
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Publication number: 20090258296Abstract: To provide a lithium/nickel/cobalt/manganese-containing composite oxide powder which has a high weight capacity density, a high packing property, an excellent cycle property, an excellent discharge rate property and an excellent safety, and which has little content of free alkalis and is free from gelation at a time of producing a slurry. A lithium/nickel/cobalt/manganese-containing composite oxide powder represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is at least one element selected from the group consisting of Al, Ge, Sn, alkaline earth metal elements and transition metal elements other than Co, Mn and Ni, 0.9?p?1.1, 0.2?x?0.5, 0.2?y?0.5, 0.1?z?0.4, 0?q?0.05, 1.9?2-a?2.1, p+x+y+z+q=2, and 0?a?0.Type: ApplicationFiled: June 18, 2009Publication date: October 15, 2009Applicant: AGC Seimi Chemical Co., Ltd.Inventors: Takeshi Kawasato, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi, Nozomi Honda
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Publication number: 20090177296Abstract: A command generating device includes a command shape calculating unit for calculating an nth derivative command shape which is a fixed multiple of the nth derivative with respect to time of a position command for causing a machine to reach a target position at a positioning time so that a convolution of a velocity command which is the first derivative with respect to time of the position command and the impulse response of a transfer function determined from the frequency of a vibration which occurs in the machine becomes equal to zero, the convolution being calculated over the time period from the positioning time onward, and an associating processing unit for integrating the nth derivative command shape n times with respect to time, and for multiplying the integral result by a constant which associates the position command at the positioning time with the target position so as to determine the position command.Type: ApplicationFiled: December 9, 2008Publication date: July 9, 2009Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
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Publication number: 20080241053Abstract: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, and 0?q?0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.Type: ApplicationFiled: April 22, 2008Publication date: October 2, 2008Applicant: SEIMI CHEMICAL CO., LTD.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
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Patent number: 7384706Abstract: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, and 0?q?0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.Type: GrantFiled: March 22, 2004Date of Patent: June 10, 2008Assignee: Seimi Chemical Co., Ltd.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi