Patents by Inventor Atsushi Fujita

Atsushi Fujita 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: 20230274102
    Abstract: Provided is a pseudo parallel translation data generation apparatus for generating pseudo parallel translation data for accurately performing machine translation in an adaptation target domain even when there exists no parallel translation data for the adaptation target domain. Using other-domains parallel translation data D0(L1-L2), other-domains first language data D0(L1), other-domains second language D0(L2), adaptation target domain first language data D0(R1), and adaptation target domain second language data D0(R2), the pseudo parallel translation data generation apparatus 100 performs optimization processing for a cross-lingual language model including an input data embedding unit 2 and an XLM processing unit 3, and performs parameter optimization processing for a pseudo parallel translation data generation NMT model including the input data embedding unit after the optimization processing and a machine translation processing unit 5.
    Type: Application
    Filed: August 5, 2021
    Publication date: August 31, 2023
    Inventors: Benjamin MARIE, Atsushi FUJITA
  • Patent number: 11710707
    Abstract: According to one embodiment, an electromagnetic wave attenuator includes a first structure body. The first structure body includes a first member, a second member, and a third member. The first member includes a first magnetic layer and a first nonmagnetic layer alternately provided in a first direction. The first nonmagnetic layer is conductive. The first direction is a stacking direction. The second member includes a second magnetic layer and a second nonmagnetic layer alternately provided in the first direction. The second nonmagnetic layer is conductive. The third member includes a third nonmagnetic layer. The third nonmagnetic layer is conductive. A direction from the third member toward the first member is along the first direction. A direction from the third member toward the second member is along the first direction. A first magnetic layer thickness is greater than a second magnetic layer thickness.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: July 25, 2023
    Assignee: SHIBAURA MECHATRONICS CORPORATION
    Inventors: Hisashi Nishigaki, Atsushi Fujita, Shohei Tanabe, Yoshinao Kamo, Shigeki Matsunaka
  • Publication number: 20230121095
    Abstract: An image capturing apparatus capable of guaranteeing the authenticity of contents while reducing the calculation load of a hash value of an image file. The image capturing apparatus generates an image file, and performs processing for reducing a file size of the image file. A hash value generation section calculates a hash value by applying a hash function to the processed image file. Reduction processing information indicating a method of reducing the file size is generated, and the image file, the hash value, and the reduction processing information are transmitted in a state associated with each other, to a management system that registers data associated with the image file including the hash value in a blockchain.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 20, 2023
    Inventors: Daiyu Ueno, Keiichiro Kubo, Keisuke Tanaka, Naohiko Tsuchida, Atsushi Fujita, Minoru Sakaida
  • Patent number: 11577673
    Abstract: A motor module includes: a motor; a driving unit; a control unit; a communication unit that performs communication via a network in the vehicle; and a connection unit to which an operation module is connected without going through the network. The control unit determines identification information of a vehicle-mounted device based on a voltage applied according to a connection state between the motor module and the operation module, controls the driving unit based on control information with information which coincides with the identification information transmitted from a management module that manages the motor module and received by the communication unit, and controls the driving unit to operate the vehicle-mounted device based on an operation signal input from the operation module according to an operation state of the operation module via the connection unit.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: February 14, 2023
    Assignee: NIDEC MOBILITY CORPORATION
    Inventors: Atsushi Fujita, Katsunori Kigoshi
  • Patent number: 11509248
    Abstract: A position estimation device acquires detection values of magnetic field strength at three or more locations of a rotor in a range where a rotor angle is less than one rotation. A section is selected based on a detection value of the magnetic field strength from predetermined sections for a pole pair number of the rotor. A feature amount calculator is provided to calculate feature amounts of a waveform of the magnetic field strength based on a combination of the detection values of the magnetic field strength according to the section selected. An estimator is provided to determine, for each segment associated with the section selected, whether or not a magnitude relationship of the feature amounts learned in advance coincides with a magnitude relationship of the feature amounts calculated, and estimating, as a rotation position of the rotor, the pole pair number associated with the segment having the same magnitude relationship.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 22, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Shota Ishigami, Atsushi Fujita, Tomohisa Tokunaga
  • Publication number: 20220336166
    Abstract: A switch device includes: an operation unit including a first switch, a second switch, a first resistor, a second resistor, and a first terminal; and a control unit including a second terminal coupled to the first terminal. A series circuit of the first switch and the first resistor and a series circuit of the second switch and the second resistor are coupled between the first terminal and a ground. The control unit monitors a potential of the first terminal which changes in response to on/off of the first and second switches via the second terminal, and determines the operation state of each switch based on the potential. A contact of the first switch is configured of a contact in which a resistance value between contacts at the time of opening and closing changes more sharply as compared with a contact of the second switch.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 20, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Tatsuki NAGATA, Katsunori KIGOSHI, So FUJIOKA, Atsushi FUJITA, Masahiko HARA, Yuki YAMAMOTO
  • Patent number: 11448526
    Abstract: A position estimation method of the present disclosure includes: acquiring learning data from a storage medium that stores the learning data including a sequence of a plurality of measurement values which define a waveform characteristic of a first electrical signal output from a sensor device when a rotor R is rotating; acquiring a sequence of a plurality of detection values which define a waveform characteristic of a second electrical signal output from the sensor device when the rotor starts rotating from a stopped state; and performing matching between an increase/decrease pattern of the sequence of the plurality of measurement values and an increase/decrease pattern of the sequence of the plurality of detection values to estimate a relationship between a rotation position of the rotor when the first electrical signal is output and a rotation position of the rotor when the second electrical signal is output.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: September 20, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Shota Ishigami, Atsushi Fujita
  • Publication number: 20220268082
    Abstract: A power window device includes a control unit configured to monitor a first potential at one end of a first circuit including first and second switches turned on by manual opening and closing operations for a window, respectively, and a second potential at one end of a second circuit including a third switch turned on by an automatic opening or closing operation. The control unit is configured to output a manual window opening signal to a motor drive unit when the first potential is a potential at a time of the first switch being turned on; output a manual window closing signal when the first potential is a potential at a time of the second switch being turned on; and output an automatic window opening or closing signal when the second potential is a potential at a time of the third switch being turned on.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 25, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Atsushi FUJITA, Katsunori KIGOSHI, So FUJIOKA, Tatsuki NAGATA, Yuki YAMAMOTO, Masahiko HARA
  • Publication number: 20220251895
    Abstract: A power window device includes a control unit configured to: monitor independently a first potential at one ends of a first switch circuit including a window closing switch and a second switch circuit including a window opening switch and a second potential at one end of a submersion detection sensor, and determine that submersion has occurred when the second potential is in a submersion potential range. During a normal time, the control unit outputs a window closing command signal when the first potential is a potential at a time of the window closing switch being operated, and outputs a window opening command signal when the first potential is a potential at a time of the window opening switch being operated. At a time of submersion, the control unit does not output the window closing command signal, and outputs the window opening command signal.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: So FUJIOKA, Katsunori KIGOSHI, Atsushi FUJITA, Tatsuki NAGATA, Yuki YAMAMOTO, Masahiko HARA
  • Publication number: 20220243519
    Abstract: A power window device includes a control unit configured to monitor a first potential at one end of a first switch circuit including a window closing switch and a second potential at one end of a second switch circuit including a window opening switch, and determine that submersion has occurred when the first or second potential is in a first or second submersion potential range. During a normal time, the control unit outputs a window closing command signal when the first potential is a potential at a time of the window closing switch being operated, and outputs a window opening command signal when the second potential is a potential at a time of the window opening switch being operated. At a time of submersion, the control unit does not output the window closing command signal, and outputs the window opening command signal.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 4, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Atsushi FUJITA, Katsunori KIGOSHI, So FUJIOKA, Tatsuki NAGATA, Yuki YAMAMOTO, Masahiko HARA
  • Patent number: 11381728
    Abstract: An image capture apparatus that detects, from an image, a subject area and a characteristic area within the subject area is disclosed. The image capture apparatus sets an AF area to the characteristic area and detects a defocus amount for the AF area and defocus amounts for peripheral areas of the AF area. The image capture apparatus corrects the defocus amount detected for the AF area based on the defocus amounts detected for the peripheral areas and adjusts focus of an imaging optical system based on the corrected defocus amount.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: July 5, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Fujita
  • Publication number: 20220119660
    Abstract: Provided is an anchor coating agent which is excellent in storage stability and can form an anchor coat layer excellent in inkjet printability, coating film durability, and hiding power. The present invention relates to an anchor coating agent containing a white pigment, an ionic salt, and an aqueous resin having an acid value of 50 mgKOH/g or less.
    Type: Application
    Filed: November 26, 2019
    Publication date: April 21, 2022
    Inventors: Atsushi FUJITA, Naoya ASADA, Genta ITO
  • Publication number: 20220081952
    Abstract: A motor module includes: a motor; a driving unit; a control unit; a memory; and a communication unit. The control unit executes: receiving parameter information specialized for a vehicle-mounted device by the communication unit from a management module, and storing the parameter information in the memory; in a case where the parameter information is stored in the memory, driving the motor by the driving unit to operate the vehicle-mounted device so that the motor outputs a predetermined torque based on an operation signal input from an outside for operating the vehicle-mounted device and the parameter information; and in a case where the parameter information is not stored in the memory, driving the motor by the driving unit for a certain period of time and then stopping the motor to inch the vehicle-mounted device so that the motor outputs a maximum torque, based on the operation signal.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 17, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Atsushi FUJITA, Katsunori KIGOSHI
  • Publication number: 20220080904
    Abstract: A motor module includes: a motor; a driving unit; a control unit; a communication unit that performs communication via a network in the vehicle; and a connection unit to which an operation module is connected without going through the network. The control unit determines identification information of a vehicle-mounted device based on a voltage applied according to a connection state between the motor module and the operation module, controls the driving unit based on control information with information which coincides with the identification information transmitted from a management module that manages the motor module and received by the communication unit, and controls the driving unit to operate the vehicle-mounted device based on an operation signal input from the operation module according to an operation state of the operation module via the connection unit.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Atsushi FUJITA, Katsunori KIGOSHI
  • Publication number: 20220014126
    Abstract: A position estimation device acquires detection values of a magnetic field strength at three or more locations of a rotor in accordance with a rotor angle in a range where the rotor angle is less than one rotation. A feature amount calculator is provided to calculate feature amounts of a waveform of the magnetic field strength based on the detection values of the magnetic field strength. An estimator is provided to determine, for each pole pair number of the rotor, whether or not a pattern of a magnitude relationship of the feature amounts learned in advance coincides with a pattern of a magnitude relationship of the feature amounts calculated, and to estimate, as a rotation position of the rotor, the pole pair number with which a pattern of the magnitude relationship coincides.
    Type: Application
    Filed: October 24, 2019
    Publication date: January 13, 2022
    Inventors: Shota ISHIGAMI, Atsushi FUJITA, Tomohisa TOKUNAGA
  • Publication number: 20220014129
    Abstract: A position estimation device acquires detection values of magnetic field strength at three or more locations of a rotor in a range where a rotor angle is less than one rotation. A section is selected based on a detection value of the magnetic field strength from predetermined sections for a pole pair number of the rotor. A feature amount calculator is provided to calculate feature amounts of a waveform of the magnetic field strength based on a combination of the detection values of the magnetic field strength according to the section selected. An estimator is provided to determine, for each segment associated with the section selected, whether or not a magnitude relationship of the feature amounts learned in advance coincides with a magnitude relationship of the feature amounts calculated, and estimating, as a rotation position of the rotor, the pole pair number associated with the segment having the same magnitude relationship.
    Type: Application
    Filed: October 24, 2019
    Publication date: January 13, 2022
    Inventors: Shota ISHIGAMI, Atsushi FUJITA, Tomohisa TOKUNAGA
  • Publication number: 20210305171
    Abstract: According to one embodiment, an electromagnetic wave attenuator includes a first structure body. The first structure body includes a first member, a second member, and a third member. The first member includes a first magnetic layer and a first nonmagnetic layer alternately provided in a first direction. The first nonmagnetic layer is conductive. The first direction is a stacking direction. The second member includes a second magnetic layer and a second nonmagnetic layer alternately provided in the first direction. The second nonmagnetic layer is conductive. The third member includes a third nonmagnetic layer. The third nonmagnetic layer is conductive. A direction from the third member toward the first member is along the first direction. A direction from the third member toward the second member is along the first direction. A first magnetic layer thickness is greater than a second magnetic layer thickness.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 30, 2021
    Inventors: Hisashi NISHIGAKI, Atsushi FUJITA, Shohei TANABE, Yoshinao KAMO, Shigeki MATSUNAKA
  • Publication number: 20210180990
    Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimate
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Inventors: Tomohiro FUKUMURA, Atsushi FUJITA, Shota ISHIGAMI
  • Publication number: 20210180989
    Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimate
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Inventors: Tomohiro FUKUMURA, Atsushi FUJITA, Shota ISHIGAMI
  • Patent number: 10976182
    Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimate
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 13, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Tomohiro Fukumura, Atsushi Fujita, Shota Ishigami