Patents by Inventor Takumi YAMATO

Takumi YAMATO 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: 11939058
    Abstract: An unmanned aerial vehicle according to the present invention includes: a main body; an arm that extends from the main body to support a rotor; a first electrical conductor which is supported by the arm and to which a voltage is applied; a second electrical conductor which is supported by the arm and spaced apart from the first electrical conductor and to which a voltage lower than the voltage applied to the first electrical conductor is applied; and a controller configured to control electrical supply to the first and second electrical conductors.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 26, 2024
    Assignee: Rakuten Group, Inc.
    Inventor: Takumi Yamato
  • Patent number: 11840340
    Abstract: Provided is an unmanned aerial vehicle including a waterproof container including: a container main body having an opening in a bottom surface defined in a landed state of the unmanned surface aerial vehicle; a waterproof door mounted to the container main body so as to open outward and close the opening; an elastic seal, which is interposed between the container main body and the waterproof door, and is configured to close the waterproof door in a liquid-tight manner; a first door-closing mechanism configured to retain a first door-closing state of the waterproof door; and a second door-closing mechanism configured to prevent movement of the waterproof door in a door-opening direction in a second door-closing state in which the waterproof door has been pushed in a direction of resisting against an elastic force of the elastic seal from the first door-closing state.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 12, 2023
    Assignee: RAKUTEN GROUP, INC.
    Inventors: Takumi Yamato, Kenichi Lee
  • Publication number: 20230260277
    Abstract: The management server 2 acquires sensing information obtained by the UAV 1 sensing, from the sky, a scatter area where a colcothar is scattered on a mountain climbing route, identifies a state of the colcothar on the basis of the sensing information, and identifies a visual recognition difficult place on the basis of the state of the colcothar.
    Type: Application
    Filed: February 7, 2023
    Publication date: August 17, 2023
    Applicant: Rakuten Group, Inc.
    Inventors: Takumi Yamato, Takayoshi Inuma, Daiki Tanaka
  • Publication number: 20230192332
    Abstract: The center server 3 determines, for each take-off/landing port 2, any one of charging of the UAV 1, discharging of the UAV 1, operation of the UAV 1 for article delivery, and standby of the UAV 1 as a action to be implemented in the take-off/landing port 2 on the basis of delivery schedule information related to a schedule for article delivery and battery information of the UAV 1 deployed in each of the plurality of take-off/landing ports 2.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Applicant: Rakuten Group, Inc.
    Inventors: Takumi YAMATO, Daiki Tanaka
  • Publication number: 20230127058
    Abstract: An aerial vehicle according to the present invention includes: at least one rotor configured to generate an air flow for lifting; and at least one sound producing structure having an opening and configured to produce sound for scaring birds and animals when the air flow generated by the rotor causes air to flow into the opening.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 27, 2023
    Applicant: Rakuten Group, Inc.
    Inventor: Takumi YAMATO
  • Patent number: 11554856
    Abstract: Provided is an aerial vehicle, including: a package carrier including a plurality of vertical members being changeable in relative positions in a horizontal direction and surrounding a package in the horizontal direction to prevent falling of the package. A plurality of rotary wings are changeable in relative positions in the horizontal direction. The relative positions of the plurality of vertical members and the relative positions of the plurality of rotary wings are changeable. The package carrier is changed in shape in the horizontal direction in accordance with the relative positions of the plurality of vertical members. The change in the relative positions of the plurality of rotary wings is in conjunction with the shape of the package carrier.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: January 17, 2023
    Assignee: RAKUTEN GROUP, INC.
    Inventor: Takumi Yamato
  • Patent number: 11548635
    Abstract: The unmanned flight equipment includes an aerial vehicle capable of flying in an unmanned manner; a linear member configured to be suspended from the aerial vehicle and to hold a delivery target at a lower end thereof; a contact detection unit configured to detect contact with the delivery target or contact with the linear member; and a separation unit configured to separate the delivery target or the liner member based on a detection result of the contact detection unit.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 10, 2023
    Assignee: Rakuten Group, Inc.
    Inventor: Takumi Yamato
  • Publication number: 20220332414
    Abstract: An unmanned aerial vehicle according to the present invention includes: a main body; an arm that extends from the main body to support a rotor; a first electrical conductor which is supported by the arm and to which a voltage is applied; a second electrical conductor which is supported by the arm and spaced apart from the first electrical conductor and to which a voltage lower than the voltage applied to the first electrical conductor is applied; and a controller configured to control electrical supply to the first and second electrical conductors.
    Type: Application
    Filed: August 23, 2019
    Publication date: October 20, 2022
    Applicant: Rakuten Group, Inc.
    Inventor: Takumi YAMATO
  • Publication number: 20220024581
    Abstract: The purpose of the present invention is to provide a gripping mechanism capable of stably gripping transportation articles of various sizes. A gripping mechanism 10 is attached to a mobile body to grip and convey a transportation article. The gripping mechanism 10 includes a pinion 20 provided so as to be rotatable about a rotation axis AX, and a first arm 12 and a second arm 14 disposed with the rotation axis being the center thereof so as to be separated from the rotation axis by the same distance in order to grip the transportation article. When the pinion 20 rotates in a predetermined direction, the first arm 12 and the second arm 14 move toward the rotation axis AX.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 27, 2022
    Applicants: NIX, INC, RAKUTEN GROUP, INC.
    Inventors: Kenichi LEE, Takumi YAMATO, Takayoshi INUMA, Osamu IGARASHI, Kyota YAMAOKA
  • Patent number: 11100745
    Abstract: A settlement processing system S is configured to perform a settlement process for a product picked up by a user based on information for settlement of the user, when closing of a door 12 of a vending machine 1 is detected after opening of the door 12 is detected. In addition, the settlement processing system S is configured to perform the settlement process for the product picked up by the user based on the information for settlement of the user, in a state in which the closing of the door 12 of the vending machine 1 is not detected after the opening of the door 12 is detected, when the state in which the user has moved from the vending machine 1 is detected.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: August 24, 2021
    Assignee: Rakuten Group, Inc.
    Inventors: Takumi Yamato, Toshiaki Tazume
  • Publication number: 20210237868
    Abstract: An unmanned aerial vehicle (UAV) includes propellers, motors configured to drive the propellers, respectively, a main body including a control device configured to control the motors, and a wireless device configured to perform at least one of transmission or reception of a signal, a package container for containing a package, and at least one float. In a case where the UAV is placed on water, buoyancy of the float and the package container prevents a surface of the water from reaching at least a height of the wireless device. The buoyancy of the package container increases with the volume of the package container.
    Type: Application
    Filed: November 9, 2018
    Publication date: August 5, 2021
    Inventor: Takumi YAMATO
  • Publication number: 20210221508
    Abstract: The present invention is intended to provide unmanned flight equipment which can quickly warn persons below the unmanned flight equipment of abnormality when an aerial vehicle is in an abnormal situation. The unmanned flight equipment 1 according to the present invention includes: an aerial vehicle 2 capable of flying in an unmanned manner; a linear member 3 configured to be suspended from the aerial vehicle 2 and to hold a delivery target T at a lower end thereof; a contact detection unit 6 configured to detect contact with the delivery target T or contact with the linear member 3; and a separation unit 7 configured to separate the delivery target T or the liner member 3 based on a detection result of the contact detection unit 6.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 22, 2021
    Applicant: Rakuten, Inc.
    Inventor: Takumi YAMATO
  • Publication number: 20210214075
    Abstract: Provided is an aerial vehicle, including: a package carrier including a plurality of vertical members being changeable in relative positions in a horizontal direction and surrounding a package in the horizontal direction to prevent falling of the package. A plurality of rotary wings are changeable in relative positions in the horizontal direction. The relative positions of the plurality of vertical members and the relative positions of the plurality of rotary wings are changeable. The package carrier is changed in shape in the horizontal direction in accordance with the relative positions of the plurality of vertical members. The change in the relative positions of the plurality of rotary wings is in conjunction with the shape of the package carrier.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 15, 2021
    Inventor: Takumi YAMATO
  • Publication number: 20210179265
    Abstract: An unmanned aerial vehicle according to an embodiment of the present invention includes: an aerial vehicle body capable of flying; a winding member provided to the aerial vehicle body and capable of winding and unwinding a linear member; an attractive member provided to an end portion of the linear member and configured to generate a magnetic attraction force between the attractive member and an attraction-responsive part that is ferromagnetic and provided to a delivery target; and a holding mechanism configured to hold the delivery target T in a state in which the attractive member and the attraction-responsive part are coupled to each other by the magnetic attraction force.
    Type: Application
    Filed: April 26, 2019
    Publication date: June 17, 2021
    Applicant: Rakuten, Inc.
    Inventor: Takumi YAMATO
  • Publication number: 20210171195
    Abstract: Provided is an unmanned aerial vehicle including a waterproof container including: a container main body having an opening in a bottom surface defined in a landed state of the unmanned surface aerial vehicle; a waterproof door mounted to the container main body so as to open outward and close the opening; an elastic seal, which is interposed between the container main body and the waterproof door, and is configured to close the waterproof door in a liquid-tight manner; a first door-closing mechanism configured to retain a first door-closing state of the waterproof door; and a second door-closing mechanism configured to prevent movement of the waterproof door in a door-opening direction in a second door-closing state in which the waterproof door has been pushed in a direction of resisting against an elastic force of the elastic seal from the first door-closing state.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 10, 2021
    Inventors: Takumi YAMATO, Kenichi LEE
  • Publication number: 20210134103
    Abstract: A settlement processing system S is configured to perform a settlement process for a product picked up by a user based on information for settlement of the user, when closing of a door 12 of a vending machine 1 is detected after opening of the door 12 is detected. In addition, the settlement processing system S is configured to perform the settlement process for the product picked up by the user based on the information for settlement of the user, in a state in which the closing of the door 12 of the vending machine 1 is not detected after the opening of the door 12 is detected, when the state in which the user has moved from the vending machine 1 is detected.
    Type: Application
    Filed: April 9, 2019
    Publication date: May 6, 2021
    Applicant: Rakuten, Inc.
    Inventors: Takumi YAMATO, Toshiaki TAZUME