Patents by Inventor Yuji Igarashi

Yuji Igarashi 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: 20220274636
    Abstract: A traveling direction state detection device includes: a first distance sensor installed near a front side of the wheels in a traveling direction and configured to linearly measure a distance to a first linear position perpendicular to the traveling direction, the first linear position existing on the traveling surface diagonally downward in the traveling direction; a second distance sensor configured to linearly measure a distance to a second linear position perpendicular to the traveling direction, the second linear position existing on a traveling surface behind the traveling surface diagonally downward in the traveling direction, and ahead of ground contact points of the wheels; and a detector configured to detect a step, an inclination and an opening of the traveling surface based on an amount of change in the distances continuously measured by each of the first distance sensor and the second distance sensor at certain time intervals.
    Type: Application
    Filed: July 27, 2020
    Publication date: September 1, 2022
    Applicant: Shimizu Corporation
    Inventors: Yuji KINOSHITA, Syunsuke IGARASHI, Taku TANI
  • Patent number: 11428948
    Abstract: A blur compensation system includes: a mirror on which light of an image from a predetermined position is incident and which reflects light of a specific wavelength such that an incidence angle and an emission angle of the light of the specific wavelength are different from each other; a mirror that is disposed at a position on which the light of an image which is reflected by the mirror is incident and reflects the light of the specific wavelength such that an incidence angle and an emission angle of the light of the specific wavelength are different from each other; and a lens that is disposed on an optical axis of the light of an image between the mirror and the mirror and changes a direction of the light of an image which is reflected by the mirror such that light of a wavelength other than the specific wavelength out of the light of an image which is reflected by the mirror is emitted in the same direction as the light of the specific wavelength from an emission position of the light of the specific wave
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 30, 2022
    Assignees: NTT DOCOMO, INC., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Shinji Kimura, Kazuhiko Takahashi, Yuji Aburakawa, Masahiro Yamaguchi, Tomoya Nakamura, Shunsuke Igarashi
  • Publication number: 20220155448
    Abstract: The purpose of the present invention is to provide a technique for estimating position information of a moving device without it being possible for a sensor installed in the environment to observe the moving device. On the bases of first position information, which is acquired by a first moving object acquisition receiver and which is position information of one or more first moving bodies present in the periphery of a first sensor (an autonomous sensor), and second position information, which is acquired by a second moving object acquisition receiver and which is position information of one or more second moving bodies present in the periphery of a second sensor (an infrared sensor), the information processing device compares the positional relation between the first moving object and the second moving object and estimates the position information of the moving device.
    Type: Application
    Filed: May 16, 2019
    Publication date: May 19, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshiaki ADACHI, Yuji IGARASHI, Hirozumi YAMAGUCHI, Teruo HIGASHINO
  • Publication number: 20220126879
    Abstract: The present disclosure includes: an autonomous driving function selection device through which selection as to necessity of autonomous driving is performed; an on-vehicle wireless communication device which outputs device status information; an authentication information input/output device which outputs authentication information usability information; an on-vehicle control device which outputs, based on the outputs from the on-vehicle wireless communication device and the authentication information input/output device, usability status information and usability information about the on-vehicle wireless communication device and the authentication information input/output device; an information providing device which physically reports, inside a vehicle, a status regarding usability based on the usability status information; and an autonomous traveling control device which performs determination as to possibility of execution of autonomous driving based on the usability information and information, about nece
    Type: Application
    Filed: May 30, 2019
    Publication date: April 28, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IGARASHI, Kengo YOKOYAMA
  • Patent number: 11293774
    Abstract: An object is to provide a technique capable of appropriately notifying a driver of information on an estimated destination even when the estimated destination is relatively far from the current position. The notification control apparatus includes an acquisition unit and a control unit. The acquisition unit acquires passage probability information and current position information. The control unit makes the notification unit notify of a content within a range defined by a distance previously associated with a probability of the passage probability information and a current position of the current position information based on the passage probability information and the current position information acquired by the acquisition unit.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 5, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Igarashi, Yuko Ohta
  • Patent number: 11193782
    Abstract: A vehicle position estimation apparatus according to the present invention includes a painted line recognition result processing unit configured to calculate whether the vehicle has made a lane change and a direction of the lane change when the vehicle has made the lane change, a vehicle lateral position calculating unit configured to calculate a lane where the vehicle is in travel and a vehicle lateral position that is a lateral position of the vehicle in the lane based on whether the vehicle has made the lane change, the direction of the lane change, and a lane connection relation, and an on-map vehicle position calculating unit configured to calculate an on-map position of the vehicle on the road based on a map information, the lane where the vehicle is in travel, the vehicle lateral position, and a forward travel distance.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 7, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kentaro Daikoku, Yuji Igarashi, Masahiko Ikawa, Masatoshi Fujii, Takashi Irie
  • Publication number: 20210001892
    Abstract: With an object of notifying a peripheral vehicle or a person of a travel plan of an own vehicle at an appropriate timing, and providing a safe automatic driving system, a travel plan information distribution system is characterized by including a travel plan information compilation unit that, based on information output by a positional information and frontal road shape information acquisition unit and a sensor information acquisition unit, compiles travel plan information including a travel plan category and a time at which travel is to be started or a position from which a travel plan is to be started, a wireless communication device that transmits travel plan information to a peripheral vehicle, and a travel plan information distribution control unit that selects and outputs necessary details of travel plan information at a safe and necessary timing.
    Type: Application
    Filed: June 8, 2018
    Publication date: January 7, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kengo YOKOYAMA, Yuji IGARASHI
  • Patent number: 10883836
    Abstract: A travel-lane estimation system includes: a GNSS receiver; a vehicle-speed calculator; an angular-velocity measurement mechanism; a subject-vehicle-position positioner calculating a vehicle's reference coordinate and reference orientation from a GNSS coordinate, and calculating time series data of vehicle's positions; a map information storage storing positional information about a division line of each lane; and a lane estimator calculating, as an optimal correction amount, an error pattern having a highest posterior probability among plural error patterns, correcting the time series data using the optimal correction amount, and comparing the corrected time series data with the division line, to estimate a vehicle's travel lane, the posterior probability calculated with the product of prior occurrence probability of the time series data by the plural error patterns and a likelihood calculated, under condition that the error pattern has occurred, based on a relative positional relationship between the correct
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: January 5, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kentaro Daikoku, Yuji Igarashi, Masahiko Ikawa, Masatoshi Fujii, Takashi Irie
  • Publication number: 20200298840
    Abstract: It is an object to provide a technique capable of optimizing a caution degree which is a degree of caution to be exerted in a vehicle. A controller determines whether a mutual dangerous driving has been performed based on travel information of a plurality of vehicles acquired in an acquisition part, and obtaining a caution degree which is a degree of caution to be exerted in each of the plurality of vehicles based on a determination result. The controller performs control of correcting a caution degree of a first vehicle in the plurality of vehicles based on a caution degree of a second vehicle in the plurality of vehicles which has performed the mutual dangerous driving with the first vehicle.
    Type: Application
    Filed: January 26, 2018
    Publication date: September 24, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Mitsuo SHIMOTANI, Naoki ISOZAKI, Hirokazu CHIYONOBU, Yuji IGARASHI
  • Publication number: 20200240806
    Abstract: A vehicle position estimation apparatus according to the present invention includes a painted line recognition result processing unit configured to calculate whether the vehicle has made a lane change and a direction of the lane change when the vehicle has made the lane change, a vehicle lateral position calculating unit configured to calculate a lane where the vehicle is in travel and a vehicle lateral position that is a lateral position of the vehicle in the lane based on whether the vehicle has made the lane change, the direction of the lane change, and a lane connection relation, and an on-map vehicle position calculating unit configured to calculate an on-map position of the vehicle on the road based on a map information, the lane where the vehicle is in travel, the vehicle lateral position, and a forward travel distance.
    Type: Application
    Filed: December 18, 2017
    Publication date: July 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kentaro DAIKOKU, Yuji IGARASHI, Masahiko IKAWA, Masatoshi FUJII, Takashi IRIE
  • Publication number: 20200166370
    Abstract: An object is to provide a technique capable of appropriately notifying a driver of information on an estimated destination even when the estimated destination is relatively far from the current position. The notification control apparatus includes an acquisition unit and a control unit. The acquisition unit acquires passage probability information and current position information. The control unit makes the notification unit notify of a content within a range defined by a distance previously associated with a probability of the passage probability information and a current position of the current position information based on the passage probability information and the current position information acquired by the acquisition unit.
    Type: Application
    Filed: July 19, 2017
    Publication date: May 28, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IGARASHI, Yuko OHTA
  • Patent number: 10486489
    Abstract: A vehicle air-conditioning system capable of reducing energy consumed during traveling while preventing a significant uncomfortable feeling of a user. An inside-vehicle environment predicting unit calculates, by using inside-vehicle sensor information and outside-vehicle sensor information being output from an environmental sensor device and a predicted travel time acquired by a predicted travel information acquisition unit, at least one predicted environmental characteristic which is an environmental characteristic inside a vehicle after a predicted travel time on an assumption that an air-conditioning device is operated in each of at least one candidate mode which has lower intensity than intensity of a selection mode among a plurality of operation modes. A mode controller resets the selection mode to one of the at least one candidate mode, in which the predicted environmental characteristic being within the allowable range is calculated by the inside-vehicle environment predicting unit.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: November 26, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Igarashi, Masahiko Ikawa, Yuko Ota, Kazushi Shirasawa, Takashi Irie
  • Publication number: 20190348942
    Abstract: A virtual verification system according to the present invention includes a real-time simulator; and a drive controller that can be connected to the real-time simulator in a virtual verification mode, and is capable of driving an electric motor in an actual operation mode. The drive controller includes an output unit that supplies electrical power to the electric motor in the actual operation mode, and outputs a signal corresponding to a virtual verification model installed in the real-time simulator in the virtual verification mode.
    Type: Application
    Filed: February 6, 2017
    Publication date: November 14, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yasuo ONODERA, Masaya HARAKAWA, Hiroatsu FUKUOKA, Yuji IGARASHI
  • Patent number: 10424199
    Abstract: A technique controlling transmission and display of terminal information in accordance with a movement state and an operation state. A communication unit transmits terminal information including at least movement information of a communication apparatus to another communication apparatus, and receives other terminal information including at least movement information of the other communication apparatus from the other communication apparatus.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: September 24, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Hamada, Yuji Igarashi, Takatoshi Tosa, Masahiko Ikawa, Hiroki Konaka
  • Patent number: 10286809
    Abstract: An electric motor is driven using a power stored in a storage battery as a power source. A power management system includes a power management device and a travel control device. The power management device includes a travel control planning unit and a section valid road slope information storage unit. The section valid road slope information storage unit stores section road slope information including information about a slope of a road section where a vehicle travels. On the basis of section valid road slope information read from the section valid road slope information storage unit, the travel control planning unit creates a travel control plan for traveling the vehicle. The travel control device performs travel control of the vehicle on the basis of the travel control plan. One of the section valid road slope information which shows a downward slope in traveling of the vehicle has a slope steeper than a predetermined slope depending on the vehicle.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 14, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Igarashi, Masashi Watanabe
  • Publication number: 20190120632
    Abstract: A travel-lane estimation system includes: a GNSS receiver; a vehicle-speed calculator; an angular-velocity measurement mechanism; a subject-vehicle-position positioner calculating a vehicle's reference coordinate and reference orientation from a GNSS coordinate, and calculating time series data of vehicle's positions; a map information storage storing positional information about a division line of each lane; and a lane estimator calculating, as an optimal correction amount, an error pattern having a highest posterior probability among plural error patterns, correcting the time series data using the optimal correction amount, and comparing the corrected time series data with the division line, to estimate a vehicle's travel lane, the posterior probability calculated with the product of prior occurrence probability of the time series data by the plural error patterns and a likelihood calculated, under condition that the error pattern has occurred, based on a relative positional relationship between the correct
    Type: Application
    Filed: July 5, 2016
    Publication date: April 25, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kentaro Daikoku, Yuji Igarashi, Masahiko Ikawa, Masatoshi Fujii, Takashi Irie
  • Publication number: 20180361823
    Abstract: An object of the present invention is to provide a vehicle air-conditioning system capable of reducing energy consumed during traveling while preventing a significant uncomfortable feeling of a user. An inside-vehicle environment predicting unit (51) calculates, by using inside-vehicle sensor information and outside-vehicle sensor information being output from an environmental sensor device (4) and a predicted travel time acquired by a predicted travel information acquisition unit (53), at least one predicted environmental characteristic which is an environmental characteristic inside a vehicle (900) after a predicted travel time on an assumption that an air-conditioning device (3) is operated in each of at least one candidate mode which has lower intensity than intensity of a selection mode among a plurality of operation modes.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 20, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji IGARASHI, Masahiko IKAWA, Yuko OTA, Kazushi SHIRASAWA, Takashi IRIE
  • Patent number: 10038399
    Abstract: A motor-control device includes: a command generation unit; an operation detection unit; a drive control unit outputting a drive control signal, a speed signal, and a drive force signal; a current control unit outputting a drive current and the drive current detection value; a mechanical characteristic estimation unit outputting a mechanical characteristic estimation value; an integration unit outputting an integrated drive time or drive amount integrated value of a drive unit; a set period determination unit outputting a signal indicating a set period for a mechanical characteristic permissible threshold output unit; a mechanical characteristic permissible threshold output unit outputting a mechanical characteristic permissible threshold; and a mechanical characteristic abnormality detection unit detecting a mechanical characteristic abnormality.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 31, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Sekiguchi, Hidetoshi Ikeda, Yuji Igarashi
  • Patent number: 9963042
    Abstract: A method, for use in a charging system including a vehicle in which a battery is installed, a charging facility, and an information terminal, for changing a charging schedule of the battery after creating the charging schedule without re-inserting a charging cable includes: receiving a request for a change of the charging schedule; acquiring, from the charging facility, a charging parameter applied in a case where the charging schedule is changed in response to the request for the change of the charging schedule as received; and creating a charging schedule after the change using the charging parameter acquired from the charging facility.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: May 8, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuji Igarashi, Yukio Goto, Takanori Matsunaga, Kazushi Shirasawa
  • Publication number: 20180013376
    Abstract: A motor-control device includes: a command generation unit; an operation detection unit; a drive control unit outputting a drive control signal, a speed signal, and a drive force signal; a current control unit outputting a drive current and the drive current detection value; a mechanical characteristic estimation unit outputting a mechanical characteristic estimation value; an integration unit outputting an integrated drive time or drive amount integrated value of a drive unit; a set period determination unit outputting a signal indicating a set period for a mechanical characteristic permissible threshold output unit; a mechanical characteristic permissible threshold output unit outputting a mechanical characteristic permissible threshold; and a mechanical characteristic abnormality detection unit detecting a mechanical characteristic abnormality.
    Type: Application
    Filed: December 10, 2015
    Publication date: January 11, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Yuji IGARASHI