Patents by Inventor Takuya Miyashita
Takuya Miyashita 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: 11984836Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of each of a plurality of motors that include first to Nth motors and a control unit configured to control the excitation unit so as to perform detection excitation processing for sequentially exciting the plurality of excitation phases for each excitation cycle during each excitation period, regarding each of the first to Nth motors, and thereby detect rotor positions of the respective first to Nth motors. When detecting rotor positions of the respective first to Nth motors, the control unit delays a start timing of the detection excitation processing of at least one motor out of the first to Nth motors relative to a start timing of the detection excitation processing of another motor by a period shorter than the excitation period.Type: GrantFiled: October 7, 2021Date of Patent: May 14, 2024Assignee: Canon Kabushiki KaishaInventors: Eijiro Ohashi, Takuya Miyashita, Yasukazu Maeda
-
Publication number: 20240079177Abstract: A multilayer coil component includes an element body, a plurality of coil conductors, a first resistive layer, and a second resistive layer. The plurality of coil conductors are disposed in the element body and electrically connected to each other. The plurality of coil conductors include a first coil conductor and a second coil conductor adjacent to each other. The first resistive layer and the second resistive layer oppose each other between the first coil conductor and the second coil conductor. The first resistive layer is in contact with the first coil conductor.Type: ApplicationFiled: July 26, 2023Publication date: March 7, 2024Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Takahiro SATO, Masaki TAKAHASHI, Takashi ENDO, Yuya ISHIMA, Kosuke ITO, Takuya MIYASHITA
-
Patent number: 11764711Abstract: A motor control apparatus includes an excitation unit and a control unit. The excitation unit includes switching elements connected to a power supply and to different motor coils. The excitation unit excites an excitation phase targeted for excitation among motor excitation phases by the control unit driving the switching elements. When the excitation phases are excited, the control unit drives, in a first time period and based on a first PWM signal, a first switching element connected to a first phase coil corresponding to a first phase of the excitation phase targeted for excitation and, in a second time period and based on a second PWM signal, drives a second switching element connected to a second phase coil corresponding to a second phase of the excitation phase. The control unit controls outputting a duty ratio of the second PWM signal to the second switching element in the second time period.Type: GrantFiled: June 7, 2021Date of Patent: September 19, 2023Assignee: Canon Kabushiki KaishaInventors: Takuya Miyashita, Eijiro Ohashi, Yasukazu Maeda
-
Patent number: 11644789Abstract: A motor control apparatus excites an excitation phase targeted for excitation among a plurality of excitation phases of a motor. The motor control apparatus, in a state in which a rotor of the motor is stopped, excites an excitation phase corresponding to a stop position of the rotor among the plurality of the excitation phases, and measures a physical quantity which changes in accordance with an inductance of at least one of a plurality of coils configuring the plurality of excitation phases. The motor control apparatus estimates a temperature of the rotor from a measurement value of the measured physical quantity, and decides a parameter value for control of the motor based on the estimated temperature.Type: GrantFiled: May 28, 2021Date of Patent: May 9, 2023Assignee: Canon Kabushiki KaishaInventors: Eijiro Ohashi, Yasukazu Maeda, Takuya Miyashita
-
Patent number: 11381191Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of a motor; a measurement unit configured to measure a physical amount that changes according to an inductance of at least one of a plurality of coils that make up the plurality of excitation phases, when each of the plurality of excitation phases is excited; and a determination unit configured to determine a type of the motor based on measurement values of the physical amount measured by the measurement unit when each of the plurality of excitation phases is excited.Type: GrantFiled: January 3, 2020Date of Patent: July 5, 2022Assignee: Canon Kabushiki KaishaInventors: Takuya Miyashita, Eijiro Ohashi, Yasukazu Maeda
-
Patent number: 11329580Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of a motor; a measurement unit configured to measure a physical amount that changes according to an inductance of a plurality of coils that make up the plurality of excitation phases when the plurality of excitation phases are excited; and a control unit configured to control the excitation unit to excite the plurality of excitation phases sequentially, determine a first excitation phase by comparing a measurement value measured by the measurement unit in excitation of each of the plurality of excitation phases with a first threshold, and determine that a rotational position of a rotor of the motor is a rotational position at which the rotor stops when the first excitation phase is excited. The first excitation phase is determined, the control unit stops excitation.Type: GrantFiled: January 21, 2020Date of Patent: May 10, 2022Assignee: Canon Kabushiki KalshaInventors: Yasukazu Maeda, Eijiro Ohashi, Takuya Miyashita
-
Publication number: 20220058699Abstract: An evaluation apparatus acquires present output information and degree of decrease information for each secondary battery as well as minimum output information for secondary use place and expiration period information for each application, and, in a case where an expiration period is defined for an application of a secondary use place, calculates a maximum output for each secondary battery at a time when the expiration period ends, and uses the calculated maximum output to evaluate a relative degree of adaptation of a plurality of secondary batteries to the application.Type: ApplicationFiled: November 4, 2021Publication date: February 24, 2022Inventors: Yuki TOMINAGA, Takuya MIYASHITA, Masayuki KAWAMURA
-
Publication number: 20220029562Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of each of a plurality of motors that include first to Nth motors and a control unit configured to control the excitation unit so as to perform detection excitation processing for sequentially exciting the plurality of excitation phases for each excitation cycle during each excitation period, regarding each of the first to Nth motors, and thereby detect rotor positions of the respective first to Nth motors. When detecting rotor positions of the respective first to Nth motors, the control unit delays a start timing of the detection excitation processing of at least one motor out of the first to Nth motors relative to a start timing of the detection excitation processing of another motor by a period shorter than the excitation period.Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Inventors: Eijiro Ohashi, Takuya Miyashita, Yasukazu Maeda
-
Publication number: 20210408949Abstract: A motor control apparatus includes an excitation unit and a control unit. The excitation unit includes switching elements connected to a power supply and to different motor coils. The excitation unit excites an excitation phase targeted for excitation among motor excitation phases by the control unit driving the switching elements. When the excitation phases are excited, the control unit drives, in a first time period and based on a first PWM signal, a first switching element connected to a first phase coil corresponding to a first phase of the excitation phase targeted for excitation and, in a second time period and based on a second PWM signal, drives a second switching element connected to a second phase coil corresponding to a second phase of the excitation phase. The control unit controls outputting a duty ratio of the second PWM signal to the second switching element in the second time period.Type: ApplicationFiled: June 7, 2021Publication date: December 30, 2021Inventors: Takuya Miyashita, Eijiro Ohashi, Yasukazu Maeda
-
Publication number: 20210373484Abstract: A motor control apparatus excites an excitation phase targeted for excitation among a plurality of excitation phases of a motor. The motor control apparatus, in a state in which a rotor of the motor is stopped, excites an excitation phase corresponding to a stop position of the rotor among the plurality of the excitation phases, and measures a physical quantity which changes in accordance with an inductance of at least one of a plurality of coils configuring the plurality of excitation phases. The motor control apparatus estimates a temperature of the rotor from a measurement value of the measured physical quantity, and decides a parameter value for control of the motor based on the estimated temperature.Type: ApplicationFiled: May 28, 2021Publication date: December 2, 2021Inventors: Eijiro Ohashi, Yasukazu Maeda, Takuya Miyashita
-
Patent number: 11171583Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of each of a plurality of motors that include first to Nth motors and a control unit configured to control the excitation unit so as to perform detection excitation processing for sequentially exciting the plurality of excitation phases for each excitation cycle during each excitation period, regarding each of the first to Nth motors, and thereby detect rotor positions of the respective first to Nth motors. When detecting rotor positions of the respective first to Nth motors, the control unit delays a start timing of the detection excitation processing of at least one motor out of the first to Nth motors relative to a start timing of the detection excitation processing of another motor by a period shorter than the excitation period.Type: GrantFiled: January 15, 2020Date of Patent: November 9, 2021Assignee: Canon Kabushiki KaishaInventors: Eijiro Ohashi, Takuya Miyashita, Yasukazu Maeda
-
Publication number: 20210248532Abstract: A job information provision system includes: a user extraction section that extracts a user who meets a predetermined extraction condition; and a vehicle-based job information provision section that transmits, to a user terminal used by the user extracted by the user extraction section, first vehicle-based job information including a content of a first vehicle-based job to be carried out by using a shared vehicle.Type: ApplicationFiled: January 20, 2021Publication date: August 12, 2021Inventors: Daisuke Sawai, Yoshiki Tatsutomi, Isao Uematsu, Takuya Miyashita
-
Publication number: 20200235689Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of a motor; a measurement unit configured to measure a physical amount that changes according to an inductance of at least one of a plurality of coils that make up the plurality of excitation phases, when each of the plurality of excitation phases is excited; and a determination unit configured to determine a type of the motor based on measurement values of the physical amount measured by the measurement unit when each of the plurality of excitation phases is excited.Type: ApplicationFiled: January 3, 2020Publication date: July 23, 2020Inventors: Takuya Miyashita, Eijiro Ohashi, Yasukazu Maeda
-
Publication number: 20200235684Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of a motor; a measurement unit configured to measure a physical amount that changes according to an inductance of a plurality of coils that make up the plurality of excitation phases when the plurality of excitation phases are excited; and a control unit configured to control the excitation unit to excite the plurality of excitation phases sequentially, determine a first excitation phase by comparing a measurement value measured by the measurement unit in excitation of each of the plurality of excitation phases with a first threshold, and determine that a rotational position of a rotor of the motor is a rotational position at which the rotor stops when the first excitation phase is excited. The first excitation phase is determined, the control unit stops excitation.Type: ApplicationFiled: January 21, 2020Publication date: July 23, 2020Inventors: Yasukazu Maeda, Eijiro Ohashi, Takuya Miyashita
-
Publication number: 20200235681Abstract: A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of each of a plurality of motors that include first to Nth motors and a control unit configured to control the excitation unit so as to perform detection excitation processing for sequentially exciting the plurality of excitation phases for each excitation cycle during each excitation period, regarding each of the first to Nth motors, and thereby detect rotor positions of the respective first to Nth motors. When detecting rotor positions of the respective first to Nth motors, the control unit delays a start timing of the detection excitation processing of at least one motor out of the first to Nth motors relative to a start timing of the detection excitation processing of another motor by a period shorter than the excitation period.Type: ApplicationFiled: January 15, 2020Publication date: July 23, 2020Inventors: Eijiro Ohashi, Takuya Miyashita, Yasukazu Maeda
-
Publication number: 20190030373Abstract: A charged particle beam treatment system includes a cyclotron that accelerates charged particles so as to emit a charged particle beam, an irradiation nozzle that irradiates a patient with the charged particle beam, a beam transport line along which the charged particle beam B emitted from the cyclotron is transported to the irradiation nozzle, profile monitors and that are provided in the beam transport line and detect a position of the beam, and steering electromagnets that are provided on an upstream side of the profile monitors, and adjust a position of the beam.Type: ApplicationFiled: July 27, 2017Publication date: January 31, 2019Inventors: Takuya Miyashita, Daizo Amano, Kazuya Taki
-
Patent number: 9740648Abstract: A valve control unit includes a data reading/selecting unit, which reads each of signals transmitted onto a serial bus, and selects a flow rate data signal from among the read signals. Therefore, the valve control unit can acquire the flow rate data signal from the serial bus without allowing the flow rate data signal to pass via the master IC. As a result, it is made possible to ensure real time properties of feedback control, which adjusts a needle valve based on a measurement result of a flowmeter, while reducing a load applied to a CPU that controls the master IC. Moreover, it is not necessary to provide an additional instrument for transferring analog signals between slave devices, and accordingly, a size increase and cost increase of an apparatus can be suppressed.Type: GrantFiled: January 13, 2015Date of Patent: August 22, 2017Assignee: SCREEN Holdings Co., Ltd.Inventors: Takuya Miyashita, Satoshi Segawa, Naoyuki Osada
-
Patent number: 9515359Abstract: A heat removal unit that removes heat from air in a battery pack in which a battery cell is accommodated to cool or dehumidify the air is provided. Further, a circulation route that connects the battery pack and the heat removal unit to each other to recirculate the air is provided. Furthermore, a direction controller that controls a flow direction of the air in the circulation route in opposite direction upon cooling and upon dehumidification is provided.Type: GrantFiled: April 23, 2012Date of Patent: December 6, 2016Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Koichi Taniyama, Hiroshi Tanada, Yoshio Tagawa, Takuya Miyashita, Hajime Tsunekawa, Keigo Atobe, Masahiko Hibino, Mao Tamaru, Kaori Nagata, Koji Kitada
-
Patent number: 9509435Abstract: A determination device for a wavelength division multiplex communication system, configured to set each of different paths each of which is formed by connection of spans each of which is a zone between two adjacent transmission devices, among transmission devices forming a communication network, in the communication network, or a single span in the communication network, for the corresponding one of different wavelengths, and configured to transmit an optical signal of each of the wavelengths via the corresponding path set to the wavelength, the device includes: a determination section configured to determine whether an optical signal of at least one of the wavelengths is transmittable only to a path, among newly formed paths, for which the number of spans forming the path is equal to or less than a predetermined upper-limit number, in order to transmit one or more optical signals of one or more wavelengths among the wavelengths.Type: GrantFiled: December 9, 2013Date of Patent: November 29, 2016Assignee: FUJITSU LIMITEDInventors: Haruka Shinohara, Kiyotoshi Noheji, Takuya Miyashita
-
Patent number: 9419741Abstract: An optical transmission system includes: a plurality of optical transmission devices each including: an adjustment unit to adjust optical power of channels in the WDM optical signal; and a controller to control the adjustment unit based on an adjustment amount, and a management device including: a converter to convert an evaluation value for evaluating quality of service provided by using the channels in the WDM optical signal into a threshold value of transmission quality to be satisfied by the channels; and a determination unit to calculate the transmission quality of the channels based on monitoring information of the channels in the WDM optical signal adjusted by the adjusting unit of at least one of the plurality of optical transmission devices and to determine the adjustment amount to be set for the optical transmission device so that the calculated transmission quality of the channels satisfy the threshold value.Type: GrantFiled: June 25, 2014Date of Patent: August 16, 2016Assignee: FUJITSU LIMITEDInventors: Taizo Maeda, Takuya Miyashita