Patents by Inventor Takao Ushiyama

Takao Ushiyama 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).

  • Publication number: 20230353854
    Abstract: An imaging device according to the present invention includes an illumination unit 20 containing a light source 21 for emitting illumination light 2, and a lens group 22 for irradiating an imaging object 1 with the illumination light 2 emitted from the light source 21, and an imaging unit 10 for imaging the imaging object 1. A part of the illumination light 2 is shielded by a light shielding component 40.
    Type: Application
    Filed: June 2, 2021
    Publication date: November 2, 2023
    Applicant: KOWA COMPANY, LTD.
    Inventors: Takao Ushiyama, Eiji Takahashi
  • Patent number: 11190110
    Abstract: A main circuit power source and a control power source of a motor drive device are backed up. A first backup capacitor is inserted between a rectifier and a control power source output terminal that supplies power to a control circuit of a driver.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: November 30, 2021
    Assignee: OMRON Corporation
    Inventors: Taketomo Hirata, Takao Ushiyama
  • Patent number: 10879834
    Abstract: A temperature monitoring device of the present invention includes: a current value acquisition portion (50) that acquires a current value supplied for the motor; a calorific value inference portion (20) that infers a calorific value through a first thermal model indicating a relationship between the current value and a calorific value of a servo driver (2); and an anomaly judgment portion (10) that compares the calorific value with a threshold, so as to judge whether there is heating anomaly.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 29, 2020
    Assignee: OMRON Corporation
    Inventors: Satoshi Yamawaki, Takao Ushiyama, Kentaro Hirao
  • Publication number: 20200212819
    Abstract: A main circuit power source and a control power source of a motor drive device are backed up. A first backup capacitor is inserted between a rectifier and a control power source output terminal that supplies power to a control circuit of a driver.
    Type: Application
    Filed: August 24, 2018
    Publication date: July 2, 2020
    Applicant: OMRON Corporation
    Inventors: Taketomo HIRATA, Takao USHIYAMA
  • Patent number: 10649426
    Abstract: The present invention can stabilize driving of a motor even if multiple control instructions of driving the motor are acquired through non-real-time communication. A servo driver (10) does not perform processing corresponding to other control commands when acquiring the other control commands from other interfaces through non-real-time communication in a process of performing processing corresponding to a control command acquired via one interface and through non-real-time communication.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: May 12, 2020
    Assignee: OMRON Corporation
    Inventors: Takao Ushiyama, Satoshi Yamawaki, Takaya Kitano
  • Patent number: 10520906
    Abstract: The disclosure enables mutual relationships among operation statuses of each motor to be ascertained without using synchronous serial communication between multiple motor control devices. The motor control system is equipped with: a motor driver having a trigger determination part for determining whether or not a trigger condition is satisfied, a trigger notification part for transmitting a trigger notification indicating that the trigger condition is satisfied to motor drivers by asynchronous communication, and a trace result information generation part for causing a storage part to store a trigger data number for identifying operation data when the trigger condition is satisfied; and motor drivers each having a trace result information generation part for causing a storage part to store a slave trigger time at which the trigger notification is received, a trigger data number for identifying operation data corresponding to the slave trigger time, and a master trigger time.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 31, 2019
    Assignee: OMRON Corporation
    Inventors: Daisuke Tamashima, Fumiaki Sato, Takao Ushiyama, Naoya Hashimoto
  • Patent number: 10416663
    Abstract: When a motor replacement detection portion (4) detects replacement of a motor (M), a control portion (2) of the motor control apparatus executes limiting processing for limiting action of the motor (M), at least until an acceptance portion (5) accepts an input of confirmation information from a user.
    Type: Grant
    Filed: December 18, 2016
    Date of Patent: September 17, 2019
    Assignee: OMRON Corporation
    Inventors: Satoshi Yamawaki, Takao Ushiyama, Masakazu Matsugami, Takaya Kitano
  • Patent number: 10401821
    Abstract: The invention relates to a motor control device, a control method, an information processing program and a recording medium, even though the network for receiving an output permission signal is not connected, the test run of the motor can be safely performed. Even though a signal generating element (104) of a servo driver (10) does not receive the output permission signal through a field network (30), if the connection to the field network (30) is determined to be not required, the signal generating element (104) does not generate the safety command.
    Type: Grant
    Filed: December 18, 2016
    Date of Patent: September 3, 2019
    Assignee: OMRON Corporation
    Inventors: Takao Ushiyama, Satoshi Yamawaki, Masakazu Matsugami, Yu Tanaka
  • Publication number: 20190025783
    Abstract: The disclosure enables mutual relationships among operation statuses of each motor to be ascertained without using synchronous serial communication between multiple motor control devices. The motor control system is equipped with: a motor driver having a trigger determination part for determining whether or not a trigger condition is satisfied, a trigger notification part for transmitting a trigger notification indicating that the trigger condition is satisfied to motor drivers by asynchronous communication, and a trace result information generation part for causing a storage part to store a trigger data number for identifying operation data when the trigger condition is satisfied; and motor drivers each having a trace result information generation part for causing a storage part to store a slave trigger time at which the trigger notification is received, a trigger data number for identifying operation data corresponding to the slave trigger time, and a master trigger time.
    Type: Application
    Filed: November 30, 2016
    Publication date: January 24, 2019
    Applicant: OMRON Corporation
    Inventors: Daisuke TAMASHIMA, Fumiaki SATO, Takao USHIYAMA, Naoya HASHIMOTO
  • Patent number: 9887659
    Abstract: A safety system has higher user design flexibility. Motor controllers (20, 30) include a motor drive circuit (207) that outputs a motor voltage command signal for driving motors (90, 100) in accordance with a motor drive command value, an inverter (211) that supplies power for driving the motors (90, 100) by switching based on the motor voltage command signal, a safety control unit that outputs a drive permission signal for driving the motors (90, 100) in accordance with communication data received through a communication circuit (213), a cut-off circuit (209) that receives the drive permission signal and the voltage drive command signal and cuts off the voltage drive command signal to an inverter (211) when receiving no drive permission signal, and a safety input unit (205) that receives redundant safety input signals. The cut-off circuit (207) receives a logical AND of the safety input signal and the drive permission signal.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: February 6, 2018
    Assignee: OMRON CORPORATION
    Inventors: Ryuichi Jimbo, Takao Ushiyama, Masakazu Matsugami
  • Patent number: 9866008
    Abstract: A safety unit is provided for this purpose, and includes a position determining unit, a speed determining unit, a logical product unit, and a stopping unit. When a rotation amount (positional data) of an encoder rotating in connection with a rotation shaft of a servo motor falls within a predetermined limiting range, the position determining unit outputs a command for stopping a motor to a logical product unit. When rotation speed of the encoder rotating in connection with the rotation shaft of the servo motor falls within a predetermined limiting range, the speed determining unit outputs the command for stopping the motor to the logical product unit. This control by the logical product unit requires a stop command from both the position and speed determining units. The logical product unit informs the stopping unit to stop the servo motor to a controller.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 9, 2018
    Assignee: OMRON Corporation
    Inventors: Akihiko Morikawa, Takao Ushiyama, Junichi Ueno, Toshinori Sato
  • Publication number: 20170272025
    Abstract: A safety system has higher user design flexibility. Motor controllers (20, 30) include a motor drive circuit (207) that outputs a motor voltage command signal for driving motors (90, 100) in accordance with a motor drive command value, an inverter (211) that supplies power for driving the motors (90, 100) by switching based on the motor voltage command signal, a safety control unit that outputs a drive permission signal for driving the motors (90, 100) in accordance with communication data received through a communication circuit (213), a cut-off circuit (209) that receives the drive permission signal and the voltage drive command signal and cuts off the voltage drive command signal to an inverter (211) when receiving no drive permission signal, and a safety input unit (205) that receives redundant safety input signals. The cut-off circuit (207) receives a logical AND of the safety input signal and the drive permission signal.
    Type: Application
    Filed: January 24, 2017
    Publication date: September 21, 2017
    Applicant: OMRON Corporation
    Inventors: Ryuichi JIMBO, Takao USHIYAMA, Masakazu MATSUGAMI
  • Publication number: 20170264233
    Abstract: A temperature monitoring device of the present invention includes: a current value acquisition portion (50) that acquires a current value supplied for the motor; a calorific value inference portion (20) that infers a calorific value through a first thermal model indicating a relationship between the current value and a calorific value of a servo driver (2); and an anomaly judgment portion (10) that compares the calorific value with a threshold, so as to judge whether there is heating anomaly.
    Type: Application
    Filed: December 16, 2016
    Publication date: September 14, 2017
    Applicant: OMRON Corporation
    Inventors: Satoshi YAMAWAKI, Takao USHIYAMA, Kentaro HIRAO
  • Publication number: 20170261960
    Abstract: The invention relates to a motor control device, a control method, an information processing program and a recording medium, even though the network for receiving an output permission signal is not connected, the test run of the motor can be safely performed. Even though a signal generating element (104) of a servo driver (10) does not receive the output permission signal through a field network (30), if the connection to the field network (30) is determined to be not required, the signal generating element (104) does not generate the safety command.
    Type: Application
    Filed: December 18, 2016
    Publication date: September 14, 2017
    Applicant: OMRON Corporation
    Inventors: Takao USHIYAMA, Satoshi YAMAWAKI, Masakazu MATSUGAMI, Yu TANAKA
  • Publication number: 20170261955
    Abstract: The present invention can stabilize driving of a motor even if multiple control instructions of driving the motor are acquired through non-real-time communication. A servo driver (10) does not perform processing corresponding to other control commands when acquiring the other control commands from other interfaces through non-real-time communication in a process of performing processing corresponding to a control command acquired via one interface and through non-real-time communication.
    Type: Application
    Filed: December 19, 2016
    Publication date: September 14, 2017
    Applicant: OMRON Corporation
    Inventors: Takao USHIYAMA, Satoshi YAMAWAKI, Takaya KITANO
  • Publication number: 20170261973
    Abstract: When a motor replacement detection portion (4) detects replacement of a motor (M), a control portion (2) of the motor control apparatus executes limiting processing for limiting action of the motor (M), at least until an acceptance portion (5) accepts an input of confirmation information from a user.
    Type: Application
    Filed: December 18, 2016
    Publication date: September 14, 2017
    Applicant: OMRON Corporation
    Inventors: Satoshi YAMAWAKI, Takao USHIYAMA, Masakazu MATSUGAMI, Takaya KITANO
  • Patent number: 9547305
    Abstract: The operation state of a servo motor is monitored and output to a user before automatic termination of power to the motor. A servo system includes a servo motor and a safety unit. The safety unit cuts off electric power to the servo motor when at least one of a speed, a position, acceleration, an amount of movement, a movement direction, and torque of the servo motor is outside a first operation range. Furthermore, the safety unit outputs a warning when at least one of the speed, the position, the acceleration, the amount of movement, the movement direction, the torque is within the first operation range, but is outside a second operation range that is narrower than the first operation range. User controls allow reduced operation when outside the second operation range.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 17, 2017
    Assignee: OMRON Corporation
    Inventors: Takao Ushiyama, Akihiko Morikawa, Toshinori Sato, Junichi Ueno
  • Patent number: 8969789
    Abstract: A signal output unit generates an A phase output signal of a rectangular wave and a B phase output signal of a rectangular wave from the A phase sinusoidal wave signal and the B phase sinusoidal wave signal, respectively and outputs the generated signals. An internal signal generating unit (comparator) generates an A phase internal signal of a rectangular wave and a B phase internal signal of a rectangular wave from the A phase sinusoidal wave signal and the B phase sinusoidal wave signal, respectively, which are further processed by counters, and an abnormality detector. Each counter resets in response to a pulse edge of a signal for detection. The abnormality detector detects an abnormality when the count value of at least one of counters reaches a prescribed value.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: March 3, 2015
    Assignee: OMRON Corporation
    Inventors: Toshinori Sato, Akihiko Morikawa, Takao Ushiyama, Junichi Ueno
  • Publication number: 20140018958
    Abstract: One aspect of the present invention provides a new safety system that can perform measurement in order to clearly set a realistic determination value and a control device constituting the safety system. The safety system, which causes a target device to transition to a safety state when an event matched with a predetermined safety condition is generated, is provided. The safety system includes a control device that includes a monitoring function of continuously collecting information on the safety condition and a management device that aggregates the information on the safety condition, which is collected by the control device. In response to generation of the event matched with the safety condition, the control device stores the information on the safety condition for a predetermined period based on generation timing of the event while correlating the generation timing with the collected information.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 16, 2014
    Inventors: Jyunichi UENO, Toshinori SATO, Akihiko MORIKAWA, Takao USHIYAMA
  • Publication number: 20130240719
    Abstract: A signal output unit generates an A phase output signal of a rectangular wave and a B phase output signal of a rectangular wave from the A phase sinusoidal wave signal and the B phase sinusoidal wave signal, respectively and outputs the generated signals. An internal signal generating unit (comparator) generates an A phase internal signal of a rectangular wave and a B phase internal signal of a rectangular wave from the A phase sinusoidal wave signal and the B phase sinusoidal wave signal, respectively, which are further processed by counters, and an abnormality detector. Each counter resets in response to a pulse edge of a signal for detection. The abnormality detector detects an abnormality when the count value of at least one of counters reaches a prescribed value.
    Type: Application
    Filed: February 26, 2013
    Publication date: September 19, 2013
    Applicant: OMRON CORPORATION
    Inventors: Toshinori SATO, Akihiko MORIKAWA, Takao USHIYAMA, Junichi UENO