Patents by Inventor Takahide Hirai

Takahide Hirai 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: 11897727
    Abstract: Provided is an elevator control device capable of calling attention to contact between a user and an autonomous moving body in an elevator shared by the user and the autonomous moving body. The elevator control device includes an elevator notification control unit configured to causes, based on a call for an elevator from an autonomous moving body, equipment provided in a hall of the elevator of a floor on which the autonomous moving body is present or equipment provided in a car of the elevator to provide notification of information indicating that the autonomous moving body boards or disembarks from the car.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: February 13, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshimasa Koba, Shingo Kobori, Takahide Hirai
  • Publication number: 20210231190
    Abstract: A vibration damping device for reducing vibration of an elevator rope includes a displacement amplifier arranged around a region from a first portion of the elevator rope drawn and a second portion of the elevator rope drawn from an opposite side of one or more sheaves in parallel with the first portion. The displacement amplifier is configured to amplify a displacement of each of the first portion and the second portion of the elevator rope. The device also includes a limiting member that controls displacement amplification performed by the displacement amplifier such that the displacement of the first portion or the second portion amplified by the displacement amplifier does not become greater than a first displacement, which is a displacement of the elevator rope by which the elevator rope is not allowed to return to an equilibrium position of the vibration.
    Type: Application
    Filed: December 3, 2018
    Publication date: July 29, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Eiichi SAITO, Takahide HIRAI, Seiji WATANABE, Daisuke NAKAZAWA, Daiki FUKUI, Tomohiro ASAMURA, Yusuke CHIKADA
  • Publication number: 20210130127
    Abstract: An object of the present invention is to provide a sway amount estimation system that can suppress a reduction in user convenience that would occur if the operation method is switched more than necessary. A sway amount estimation system (300) includes a sensing unit (78), a judgment unit (80), and an estimation unit (79). The estimation unit (79) calculates an estimated value of the amount of sway of an elevator rope due to vibration caused by building sway based on the sway sensed by the sensing unit (78) and an estimation model incorporating the effect of the displacement amplification of the displacement amplifier (7). The judgment unit (80) judges if the estimated value calculated by the estimation unit (79) is greater than a threshold for switching the operation method for the elevator apparatus (11).
    Type: Application
    Filed: December 3, 2018
    Publication date: May 6, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Eiichi SAITO, Takahide HIRAI, Seiji WATANABE, Daisuke NAKAZAWA, Daiki FUKUI, Tomohiro ASAMURA, Yusuke CHIKADA
  • Publication number: 20210094793
    Abstract: An object of the invention is to provide a vibration damping system that can avoid the occurrence of resonance of an elevator rope regardless of the vibration frequency of a vibration source. A vibration damping system (200) includes a displacement amplifier (7), a calculation unit (66), and a displacement amplification control unit (67). The displacement amplifier (7) is arranged along a given position in the longitudinal direction of the elevator rope. The displacement amplifier (7) amplifies a displacement due to vibration of the elevator rope based on a variable amplification factor. The calculation unit (66) calculates the natural frequency of the elevator rope. The displacement amplification control unit (67) controls the displacement amplification of the displacement amplifier (7) based on the natural frequency calculated by the calculation unit (66) and a preset vibration frequency.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 1, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Eiichi SAITO, Takahide HIRAI, Seiji WATANABE, Daisuke NAKAZAWA, Daiki FUKUI, Tomohiro ASAMURA, Yusuke CHIKADA
  • Publication number: 20210094799
    Abstract: An object of the present invention is to provide a vibration damping device including an instability preventing means, for efficiently suppressing amplification of vibration of a long structure, which is mechanically flexible, due to a resonance phenomenon. A vibration damping device (100) for reducing vibration of a long structure (1) includes a displacement amplifier (7) and limiting members (8). The displacement amplifier (7) is arranged along a given position in the longitudinal direction of the structure (1). The displacement amplifier (7) amplifies a displacement of the structure (1). The limiting members (8) control displacement amplification performed by the displacement amplifier (7) such that the displacement of the structure (1) amplified by the displacement amplifier (7) does not become greater than a first displacement, the first displacement being a displacement of the structure (1) by which the structure (1) is not allowed to return to the equilibrium position of the vibration.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 1, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Eiichi SAITO, Takahide HIRAI, Seiji WATANABE, Daisuke NAKAZAWA, Daiki FUKUI, Tomohiro ASAMURA, Yusuke CHIKADA
  • Publication number: 20200270095
    Abstract: Provided is a control apparatus for an elevator that can control the operation of the elevator in a suitable manner when a user is not a pedestrian, without requiring the user for a complicated operation. A control apparatus (7) according to the present invention is provided with: a call registration unit (14) that registers a call for an elevator (1) based on information transmitted by wireless communication from a mobile terminal (10) to communication equipment (8) installed in a region passable by a user (9); and an operation control unit (15) that, when a user type is determined to be a wheeled moving body from a detection result of an acceleration sensor (12) of the mobile terminal (10), controls the operation of the elevator (1) in a manner different from a case where the user type is determined to be a pedestrian.
    Type: Application
    Filed: November 30, 2017
    Publication date: August 27, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Akira FUMIYA, Takahide HIRAI
  • Publication number: 20190218060
    Abstract: Provided is an elevator control device capable of calling attention to contact between a user and an autonomous moving body in an elevator shared by the user and the autonomous moving body. The elevator control device includes an elevator notification control unit configured to causes, based on a call for an elevator from an autonomous moving body, equipment provided in a hall of the elevator of a floor on which the autonomous moving body is present or equipment provided in a car of the elevator to provide notification of information indicating that the autonomous moving body boards or disembarks from the car.
    Type: Application
    Filed: October 4, 2016
    Publication date: July 18, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshimasa KOBA, Shingo KOBORI, Takahide HIRAI
  • Patent number: 7782187
    Abstract: A position detection sensor using electromagnetic wave (1) estimates the position of a monitor object (100) in a first detection region (101), and outputs it as a first possibility distribution. A second sensor (4) estimates the position of the monitor object (100) in a second detection region (102), and outputs it as a second possibility distribution. A distribution computing means (5) outputs an integrated possibility distribution which it obtains by integrating the possibility distributions of the position of the monitor object 100 which are acquired by these sensors. An information presenting means (6) outputs the integrated possibility distribution as information about the most possible position of the monitor object (100).
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: August 24, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Junji Kondo, Kenji Inomata, Takahide Hirai
  • Publication number: 20080258914
    Abstract: A position detection sensor using electromagnetic wave (1) estimates the position of a monitor object (100) in a first detection region (101), and outputs it as a first possibility distribution. A second sensor (4) estimates the position of the monitor object (100) in a second detection region (102), and outputs it as a second possibility distribution. A distribution computing means (5) outputs an integrated possibility distribution which it obtains by integrating the possibility distributions of the position of the monitor object 100 which are acquired by these sensors. An information presenting means (6) outputs the integrated possibility distribution as information about the most possible position of the monitor object (100).
    Type: Application
    Filed: September 21, 2007
    Publication date: October 23, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junji KONDO, Kenji INOMATA, Takahide HIRAI
  • Publication number: 20060119469
    Abstract: A user authentication system of the present invention includes: a first wireless tag having first ID data about a user and a first antenna for transmitting the first ID data; a second wireless tag having second ID data different from the first ID data, and a second antenna, perpendicular to the first antenna, for transmitting the second ID data; a wireless-tag receiver for receiving the first ID data transmitted from the first antenna and the second ID data transmitted from the second antenna; and a use-permission determining apparatus for determining whether the ID data received by the receiver matches pre-registered ID data, and for determining, based on timing of or counts of receptions of the first ID data and the second ID data received during a predetermined period of time, whether use is permitted.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 8, 2006
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takahide Hirai, Koichi Sasakawa