Patents by Inventor Hiroyuki Toda

Hiroyuki Toda 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: 20210128639
    Abstract: A cell preparation for treating brain tumors used in combination with a prodrug of a drug that kills, or inhibits proliferation of, tumor cells, wherein the cell preparation comprises neural stem cells derived from iPS cells or ES cells having a suicide gene, and the prodrug is a prodrug activated with an enzyme produced by expression of the suicide gene comprised in the neural stem cells is provided to solve the difficulty of obtaining neural stem cells, which is problematic, and to establish new means for treating brain tumors using neural stem cells.
    Type: Application
    Filed: May 9, 2018
    Publication date: May 6, 2021
    Applicant: KEIO UNIVERSITY
    Inventors: Masahiro TODA, Hideyuki OKANO, Hiroyuki MIYOSHI, Ryota TAMURA
  • Patent number: 10976447
    Abstract: A plurality of antennas may be arranged at positions non-linear to each other. Processing circuitry may set an initial value of one of an attitude angle and an azimuth angle of an azimuth angle calculating device. An integer value bias of a carrier phase difference between at least two groups of antennas may be determined by using the initial value. A base-line vector between the at least two groups of antennas may be calculated by using the integer value bias corresponding to the group of antennas. A multiple base-line verification may be performed, in which validity of the initial value is verified by using each of the base-line vectors calculated using the integer value bias. An azimuth angle may be calculated by using the integer value bias when the multiple base-line verification is successful.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 13, 2021
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Hiraku Nakamura, Hiroyuki Toda, Naomi Fujisawa
  • Patent number: 10948292
    Abstract: The purpose is to accurately and promptly calculate an error of a magnetic sensor. A sensor error calculating device may include a GNSS attitude angle calculating module, a GNSS geomagnetism calculating module, and an error estimating module. The GNSS attitude angle calculating module may calculate a GNSS attitude angle of a movable body based on positioning signals of a GNSS. The GNSS geomagnetism calculating module may calculate a GNSS geomagnetism based on the GNSS attitude angle. The error estimating module may estimate a sensitivity error, a misalignment error and a bias error of the magnetic sensor by using a magnetic detection value of the magnetic sensor and the GNSS geomagnetism.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 16, 2021
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Hiroyuki Toda, Naomi Fujisawa, Hiraku Nakamura
  • Publication number: 20210035000
    Abstract: An object is to estimate parameters of a model including censored data at high speed, with a saved memory, and with the parameters having temporal continuity. A responsibility update unit 19 updates a responsibility based on data of a newly observed sample. Then, a moment update unit 20 updates a moment based on the data of the newly observed sample. Then, a statistic update unit 21 updates each statistic based on the responsibility or the moment. Then, a parameter update unit 22 updates a parameter related to a component based on the statistics.
    Type: Application
    Filed: February 8, 2019
    Publication date: February 4, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masahiro KOJIMA, Hiroshi KIYOTAKE, Tatsushi MATSUBAYASHI, Hisako SHIOHARA, Hiroyuki TODA
  • Patent number: 10877163
    Abstract: The purpose is to easily achieve verification of an integrated attitude angle based on an inertial sensor. An attitude angle calculating device may include an integrated attitude angle calculating module, a reverse-calculated value calculating module, a reference value calculating module, and a determining module. The integrated attitude angle calculating module may calculate an integrated attitude angle using an output of the inertial sensor and a positioning signal. The reverse-calculated value calculating module may reverse calculate, using the integrated attitude angle, a physical quantity obtained based on the positioning signal that is used for calculating the integrated attitude angle. The reference value calculating module may calculate a reference physical quantity corresponding to the reverse-calculated physical quantity, based on an observation value of the positioning signal.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: December 29, 2020
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Hiraku Nakamura, Naomi Fujisawa, Hiroyuki Toda
  • Publication number: 20200402085
    Abstract: The probability of migration and the number of migrating persons with high accuracy and a small amount of calculation can be estimated even when migrations to areas other than adjacent areas are taken into consideration. A parameter estimation unit 120 estimates a first parameter indicating the likelihood of departure from the area to the other area and a second parameter indicating the likelihood of gathering of persons in the area for each of the plurality of areas, a third parameter indicating an influence on the probability of migration of a distance between the areas, and the number of migrating persons from the area to each of the other areas for each of the plurality of areas on the basis of the demographic information. A migration probability calculation unit 170 calculates the probability of migration from the area to each of the other areas for each of the plurality of areas on the basis of the first parameter, the second parameter, and the third parameter.
    Type: Application
    Filed: February 14, 2019
    Publication date: December 24, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasunori AKAGI, Hiroyuki TODA, Takeshi KURASHIMA, Takuya NISHIMURA
  • Publication number: 20200393574
    Abstract: The device and method can calculate an absolute spatial relationship between a device and other characteristic points etc. with high precision by using VSLAM. A navigation device includes a VSLAM calculating module, a GNSS rate calculating module, and a scale correction value calculating module. The GNSS rate calculating module calculates a GNSS rate based on one of an amount of change in a phase of a GNSS signal and an amount of change in a frequency of the GNSS signal. The VSLAM calculating module estimates VSLAM locations at a plurality of time points based on a VSLAM calculation using a video image. The scale correction value calculating module calculates a scale correction value for the VSLAM location based on the VSLAM locations at two or more time points of the plurality of time points estimated by the VSLAM calculating module, and the GNSS rate.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Hiraku NAKAMURA, Hiroyuki TODA, Tatsuya SONOBE, Naomi FUJISAWA
  • Publication number: 20200292316
    Abstract: A movement information calculating device includes a positioning sensor, a velocity sensor, an attitude sensor and processing circuitry. The positioning sensor is configured to calculate a position of the positioning sensor on a movable body. The velocity sensor is configured to calculate a velocity of the movable body. The attitude sensor is configured to calculate an attitude of the movable body. The processing circuitry is configured to calculate a center-of-gravity position and a center-of-gravity velocity of the movable body by using the position, the velocity, and the attitude, and calculate one of a turning center position and a pivoting position of the movable body by using the center-of-gravity position and the center-of-gravity velocity.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Hiraku NAKAMURA, Hiroyuki Toda, Naomi Fujisawa, Akihiro Hino
  • Publication number: 20200292712
    Abstract: An oscillation observation device includes a first receiver and processing circuitry. The first receiver is configured to measure carrier phases of positioning signal. The processing circuitry is configured to calculate a velocity of an object by using an amount of change in the carrier phases measured by the first receiver, and calculate an amount of oscillation of the object in a translational direction using the velocity.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Hiraku NAKAMURA, Hiroyuki TODA, Naomi FUJISAWA
  • Publication number: 20200200539
    Abstract: The present disclosure is to calculate an estimated position with high precision. A course estimating device 10 includes an angular velocity calculating part 30, a horizontal ground speed calculating part 70 and an estimated position calculating part 80. The angular velocity calculating part 30 measures or calculates an angular velocity of a movable body. The horizontal ground speed calculating part 70 calculates a horizontal ground speed based on an attitude angle, a ground course, and a ground ship speed of the movable body. The estimated position calculating part 80 calculates an estimated position, based on a period of time from a current time point to an estimation time point, the horizontal ground speed, and an integration operation of the angular velocity.
    Type: Application
    Filed: December 27, 2019
    Publication date: June 25, 2020
    Applicant: FURUNO ELECTRIC CO., LTD.
    Inventors: Hiraku NAKAMURA, Hiroyuki TODA, Naomi FUJISAWA, Akihiro HINO
  • Publication number: 20200132862
    Abstract: The determination of an integer value bias may be performed at high speed. A positioning device, may include a FLOAT solution calculating part and an integer value bias determining part. The FLOAT solution calculating part may use carrier phase differences between carrier phases obtained by a plurality of antennas of a first station and a carrier phase obtained by one or more antennas of a second station provided separately from the first station to calculate a FLOAT solution of a particular position that is a relative position with respect to the second station, without using posture information on the first station. The integer value bias determining part may determine an integer value bias of the carrier phase difference, using the FLOAT solution of the particular position and the posture information on the first station.
    Type: Application
    Filed: March 27, 2018
    Publication date: April 30, 2020
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Hiroyuki TODA, Naomi FUJISAWA, Hiraku NAKAMURA
  • Publication number: 20200109948
    Abstract: A navigation device may include a GNSS data editing part, an attitude angle calculating part, and a speed calculating part. The GNSS data editing part may generate GNSS attitude angle estimation data and GNSS speed estimation data by using first GNSS data based on a GNSS signal received by a first antenna, and second GNSS data obtained at a shorter cycle than the first GNSS data based on a GNSS signal received by a second antenna. The attitude angle calculating part may estimate an integrated attitude angle based on the IMU angular velocity outputted from an Inertial Measurement Unit (IMU) and the GNSS attitude angle estimation data. The speed calculating part may estimate an integrated speed based on an IMU acceleration outputted from the IMU, the GNSS speed estimation data, and the integrated attitude angle.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 9, 2020
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Hiroyuki TODA, Masashi SUGIMOTO
  • Patent number: 10514469
    Abstract: An attitude angle may be calculated with high precision. In a traveling state calculating device, receiving parts may output data for calculation using positioning signals received by antennas, respectively. A phase difference calculating part may calculate a single phase difference for every base line based on the data for calculation outputted by the receivers. An attitude angle calculating part may calculate an attitude angle using the data for calculation and the single phase difference. A calculating condition determining part may determine a contribution of the data for calculation to the calculation of the attitude angle, corresponding to the component of the attitude angle, based on a spatial relationship between the base line and the positioning satellite.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: December 24, 2019
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Naomi Fujisawa, Hiroyuki Toda, Akihiro Hino, Hiraku Nakamura, Takeshi Nagano, Soichiro Etani, Masashi Sugimoto
  • Publication number: 20190369267
    Abstract: A plurality of antennas may be arranged at positions non-linear to each other. Processing circuitry may set an initial value of one of an attitude angle and an azimuth angle of an azimuth angle calculating device. An integer value bias of a carrier phase difference between at least two groups of antennas may be determined by using the initial value. A base-line vector between the at least two groups of antennas may be calculated by using the integer value bias corresponding to the group of antennas. A multiple base-line verification may be performed, in which validity of the initial value is verified by using each of the base-line vectors calculated using the integer value bias. An azimuth angle may be calculated by using the integer value bias when the multiple base-line verification is successful.
    Type: Application
    Filed: December 12, 2017
    Publication date: December 5, 2019
    Inventors: Hiraku Nakamura, Hiroyuki Toda, Naomi Fujisawa
  • Patent number: 10197681
    Abstract: A small-sized state calculating device which may acquire a highly-precise state calculation value is provided. The state calculating device may include antennas, receiving parts, a phase difference calculating part and an operation part. The receiving parts may calculate carrier phase measurements PYA, PYB and PYC of GNSS signals received by the antennas, respectively. The phase difference calculating part may set the antennas to be switched between a master antenna and a slave antenna, and calculate the plurality of inter-antenna phase differences ??AB, ??BC and ??CA, for every combination of the master antenna and the slave antenna, using the carrier phase measurements PYA, PYB and PYC. The operation part may calculate an attitude angle AT using the plurality of inter-antenna phase differences ??AB, ??BC and ??CA.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: February 5, 2019
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Hiraku Nakamura, Naomi Fujisawa, Hiroyuki Toda, Takeshi Nagano
  • Patent number: 10101355
    Abstract: A velocity calculating device is provided, which can accurately calculate a moving velocity of a movable body without depending on signals obtained externally. A navigation device includes an acceleration acquiring module, an angular velocity acquiring module, a time difference detecting module, and a velocity calculating module. The acceleration acquiring module acquires the vertical acceleration of one of the axle of the front wheels and the axle of the rear wheels. The angular velocity acquiring module acquires a pitch angular velocity of the automobile. The time difference detecting module detects a time difference between the acceleration in the vertical directions and the pitch angular velocity. The velocity calculating module calculates a moving velocity of the automobile based on a rate of a wheelbase with respect to the time difference.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 16, 2018
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Youji Takayama, Hiroyuki Toda
  • Publication number: 20180259653
    Abstract: The purpose is to easily achieve verification of an integrated attitude angle based on an inertial sensor. An attitude angle calculating device may include an integrated attitude angle calculating module, a reverse-calculated value calculating module, a reference value calculating module, and a determining module. The integrated attitude angle calculating module may calculate an integrated attitude angle using an output of the inertial sensor and a positioning signal. The reverse-calculated value calculating module may reverse calculate, using the integrated attitude angle, a physical quantity obtained based on the positioning signal that is used for calculating the integrated attitude angle. The reference value calculating module may calculate a reference physical quantity corresponding to the reverse-calculated physical quantity, based on an observation value of the positioning signal.
    Type: Application
    Filed: October 25, 2016
    Publication date: September 13, 2018
    Inventors: Hiraku Nakamura, Naomi Fujisawa, Hiroyuki Toda
  • Publication number: 20180259333
    Abstract: The purpose is to accurately and promptly calculate an error of a magnetic sensor. A sensor error calculating device may include a GNSS attitude angle calculating module, a GNSS geomagnetism calculating module, and an error estimating module. The GNSS attitude angle calculating module may calculate a GNSS attitude angle of a movable body based on positioning signals of a GNSS. The GNSS geomagnetism calculating module may calculate a GNSS geomagnetism based on the GNSS attitude angle. The error estimating module may estimate a sensitivity error, a misalignment error and a bias error of the magnetic sensor by using a magnetic detection value of the magnetic sensor and the GNSS geomagnetism.
    Type: Application
    Filed: October 25, 2016
    Publication date: September 13, 2018
    Inventors: Hiroyuki Toda, Naomi Fujisawa, Hiraku Nakamura
  • Patent number: 10012672
    Abstract: To accurately calculate an attached angle of an accelerometer and accurately correct an acceleration that is obtained from the accelerometer: a frequency analyzing module of an acceleration corrector divides a sensor coordinate system acceleration into a bias frequency component, a gravity frequency component, a movement acceleration frequency component, and a noise frequency component, through a wavelet transform. The frequency analyzing module outputs a sum component of the gravity frequency component and the movement acceleration frequency component to an attached angle estimating module and a correcting operation module. The attached angle estimating module estimation-calculates the attached angle of an accelerometer and outputs it to the correcting operation module.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: July 3, 2018
    Assignee: FURUNO ELECTRIC COMPANY LIMITED
    Inventors: Hiroyuki Toda, Ken Yoshitake
  • Publication number: 20170363749
    Abstract: An attitude angle may be calculated with high precision. In a traveling state calculating device, receiving parts may output data for calculation using positioning signals received by antennas, respectively. A phase difference calculating part may calculate a single phase difference for every base line based on the data for calculation outputted by the receivers. An attitude angle calculating part may calculate an attitude angle using the data for calculation and the single phase difference. A calculating condition determining part may determine a contribution of the data for calculation to the calculation of the attitude angle, corresponding to the component of the attitude angle, based on a spatial relationship between the base line and the positioning satellite.
    Type: Application
    Filed: November 26, 2015
    Publication date: December 21, 2017
    Inventors: Naomi Fujisawa, Hiroyuki Toda, Akihiro Hino, Hiraku Nakamura, Takeshi Nagano, Soichiro Etani, Masashi Sugimoto