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).

  • Patent number: 8786245
    Abstract: 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: Grant
    Filed: May 10, 2011
    Date of Patent: July 22, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koichiro Ueda, Hidetoshi Ikeda
  • Patent number: 8786219
    Abstract: 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: Grant
    Filed: January 25, 2011
    Date of Patent: July 22, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hidetoshi Ikeda, Yoshihiro Marushita, Koichiro Ueda, Yuji Igarashi, Kiyoshi Maekawa
  • Patent number: 8638058
    Abstract: 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: Grant
    Filed: August 19, 2010
    Date of Patent: January 28, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koichiro Ueda, Kimiyuki Takahashi
  • Publication number: 20130317653
    Abstract: 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: Application
    Filed: May 24, 2012
    Publication date: November 28, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koichiro Ueda, Yoshihiro Marushita, Kimihiro Mizuno
  • Publication number: 20130160898
    Abstract: 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: Application
    Filed: June 17, 2011
    Publication date: June 27, 2013
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Masanori Matsuno, Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu
  • Publication number: 20130157076
    Abstract: 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: Application
    Filed: June 17, 2011
    Publication date: June 20, 2013
    Applicant: NISSHIN STEEL CO., LTD.
    Inventors: Masanori Matsuno, Koichiro Ueda, Masaya Yamamoto, Hirofumi Taketsu
  • Publication number: 20130119916
    Abstract: 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: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Inventors: Yebin Wang, Koichiro Ueda, Scott A. Bortoff
  • Publication number: 20130063068
    Abstract: 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: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koichiro Ueda, Hidetoshi Ikeda
  • Publication number: 20130033220
    Abstract: 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: Application
    Filed: May 10, 2011
    Publication date: February 7, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Koichiro Ueda
  • Publication number: 20130032961
    Abstract: 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: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koichiro Ueda, Kiyoshi Hasegawa, Hidemasa Ogi, Yukihiko Kobayashi
  • Publication number: 20130033221
    Abstract: 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: Application
    Filed: May 10, 2011
    Publication date: February 7, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koichiro Ueda, Hidetoshi Ikeda
  • Publication number: 20120306426
    Abstract: 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: Application
    Filed: January 25, 2011
    Publication date: December 6, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidetoshi Ikeda, Yoshihiro Marushita, Koichiro Ueda, Yuji Igarashi, Kiyoshi Maekawa
  • Publication number: 20120187891
    Abstract: 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: Application
    Filed: August 19, 2010
    Publication date: July 26, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koichiro Ueda, Kimiyuki Takahashi
  • Patent number: 7785742
    Abstract: 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: Grant
    Filed: April 22, 2008
    Date of Patent: August 31, 2010
    Assignee: Seimi Chemical Co., Ltd.
    Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
  • Patent number: 7778716
    Abstract: 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: Grant
    Filed: December 9, 2008
    Date of Patent: August 17, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
  • Patent number: 7627387
    Abstract: 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: Grant
    Filed: October 14, 2005
    Date of Patent: December 1, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
  • Publication number: 20090258296
    Abstract: 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: Application
    Filed: June 18, 2009
    Publication date: October 15, 2009
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Takeshi Kawasato, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi, Nozomi Honda
  • Publication number: 20090177296
    Abstract: 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: Application
    Filed: December 9, 2008
    Publication date: July 9, 2009
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Koichiro Ueda, Hidetoshi Ikeda, Kiyoshi Maekawa
  • Publication number: 20080241053
    Abstract: 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: Application
    Filed: April 22, 2008
    Publication date: October 2, 2008
    Applicant: SEIMI CHEMICAL CO., LTD.
    Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
  • Patent number: 7384706
    Abstract: 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: Grant
    Filed: March 22, 2004
    Date of Patent: June 10, 2008
    Assignee: Seimi Chemical Co., Ltd.
    Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi