Patents by Inventor Takuya Tamai

Takuya Tamai 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: 20230288942
    Abstract: A mobile machine movable between multiple rows of trees includes one or more sensors to output sensor data indicating a distribution of objects in a surrounding environment of the mobile machine, and a data generator. While performing localization, the data generator is configured or programmed to detect trunks of the rows of trees in the surrounding environment of the mobile machine based on the sensor data that is repeatedly output from the one or more sensors, and generate local map data from which to generate environment map data indicating a distribution of the detected trunks of the rows of trees and record the local map data to a storage.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: Junichi YUASA, Shunsuke MIYASHITA, Takuya TAMAI, Shunsuke EDO, Ryo KURATA
  • Publication number: 20230284550
    Abstract: A mobile machine movable between multiple rows of trees includes at least two LiDAR sensors to output two-dimensional or three-dimensional point clouds data indicating a distribution of objects in a surrounding environment of the mobile machine, a storage to store environment map data indicating a distribution of trunks of the multiple rows of trees, a localization processor, and a controller to control movement of the mobile machine in accordance with a position of the mobile machine as estimated by the localization processor. The localization processor is configured or programmed to detect the trunks of the rows of trees in the surrounding environment of the mobile machine based on the point clouds data that is repeatedly output from the at least two LiDAR sensors while the mobile machine is moving, and to perform matching between the detected trunks of the rows of trees and the environment map data to estimate a position of the mobile machine.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: Junichi YUASA, Shunsuke MIYASHITA, Takuya TAMAI, Shunsuke EDO, Ryo KURATA
  • Publication number: 20230288936
    Abstract: A mobile machine movable between multiple rows of trees includes one or more sensors to output sensor data indicating a distribution of objects in a surrounding environment of the mobile machine, a storage to store environment map data indicating a distribution of trunks of the multiple rows of trees, a localization processor, and a controller to control movement of the mobile machine in accordance with a position of the mobile machine estimated by the localization processor. The localization processor is configured or programmed detect the trunks of the rows of trees in the surrounding environment of the mobile machine based on the sensor data that is repeatedly output from the one or more sensors while the mobile machine is moving, and perform matching between the detected trunks of the rows of trees and the environment map data to estimate a position of the mobile machine.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: Junichi YUASA, Shunsuke MIYASHITA, Takuya TAMAI, Shunsuke EDO, Ryo KURATA
  • Publication number: 20230078003
    Abstract: An agricultural robot includes a traveling body, a working unit on the traveling body to do work relating to a crop, an optical sensor on the traveling body, and a crop estimator to perform estimation of the crop based on sensor data obtained by the optical sensor. The crop estimator includes a data extractor to designate the crop to be subjected to the estimation based on the sensor data and extract, as partial data, a portion of the sensor data that corresponds to the designated crop, and an estimator to perform the estimation of the crop based on a surface condition of the crop obtained from the partial data extracted by the data extractor.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventors: Shunsuke EDO, Takuya TAMAI, Jumpei MIYAMOTO, Tomoyoshi SAKANO
  • Publication number: 20220272900
    Abstract: An agricultural robot includes a machine body, a wheeled traveling device to support the machine body such that the machine body is capable of traveling, the traveling device including at least three wheels, a manipulator including an arm and a robot hand, the arm being attached to the machine body, the robot hand being attached to the arm and capable of holding an object, and a balance controller to control positions of the at least three wheels, respectively, to achieve a balance between the machine body and the manipulator.
    Type: Application
    Filed: May 17, 2022
    Publication date: September 1, 2022
    Inventors: Minoru HIRAOKA, Tomoyoshi SAKANO, Jumpei MIYAMOTO, Junichi ISHIKAWA, Takuya TAMAI, Shunsuke EDO
  • Publication number: 20220042280
    Abstract: A plurality of traveling wheels are supported via expandable/contractible tubular support members to a vehicle body frame. A hydraulic operation type vehicle height adjustment mechanism provided for each one of the traveling wheels, the vehicle height adjustment mechanism being capable of switching a relative height of the traveling wheel relative to the vehicle body frame within a predetermined length range by expanding/contracting the support member by a hydraulic cylinder. There are provided a hydraulic control valve capable of controlling feeding state of work oil to each one of the plurality of hydraulic cylinders, a controlling section for controlling an operation of the hydraulic control valve to bring the vehicle body to a target state via vehicle height adjustment by the hydraulic cylinder in response to a change in the posture of the vehicle body and a plurality of accumulators connected oil chambers of the respective plurality of hydraulic cylinders.
    Type: Application
    Filed: December 12, 2019
    Publication date: February 10, 2022
    Inventors: Takuya Tamai, Junichi Ishikawa, Minoru Hiraoka