Patents by Inventor Sakura Tomita

Sakura Tomita 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: 11726485
    Abstract: This autonomous work vehicle travel system is provided with: a satellite positioning module 80 that outputs positioning data indicating a vehicle position of a work vehicle 1; an area setting unit that sets an area CA to be worked in a work site; a route managing unit that calculates a travel route element set, which is an aggregate of multiple travel route elements constituting a travel route that covers the area CA to be worked, and storing the travel route element set so as to be readable; a route element selecting unit that selects a next travel route element to be traveled in sequence from the travel route element set; and an autonomous travel controlling unit that causes the work vehicle 1 to travel autonomously on the basis of the next travel route element and the vehicle position.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 15, 2023
    Assignee: Kubota Corporation
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Patent number: 11320279
    Abstract: A travel route management system includes an area setting unit that sets a work site to an outer peripheral area SA and an area CA to be worked on an inner side of the outer peripheral area SA, and a route element selecting unit that sequentially selects a next travel route element to be traveled on next, from among multiple mutually-parallel travel route elements, the travel route elements constituting a travel route that covers the area CA to be worked. The route element selecting unit selects a U-turn travel route for moving from a travel route element serving as a movement origin to a next travel route element serving as a movement destination, the selection being made on the basis of an interval between the movement origin and the movement destination.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 3, 2022
    Assignee: Kubota Corporation
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Patent number: 11300976
    Abstract: A work vehicle automatic traveling system includes a route element selecting unit that, on the basis of state information, sequentially selects a next travel route element on which a work vehicle is to travel next, from a travel route element set and a circling route element set. The route element selecting unit includes a cooperative route element selection rule, which is employed when a plurality of work vehicles carry out work travel cooperatively in an area CA to be worked, and an independent route element selection rule, which is employed when a single independent work vehicle among the work vehicles carries out work travel independently in the area CA to be worked. Also described is selecting the next travel route element based on the independent route element selection rule.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 12, 2022
    Assignee: Kubota Corporation
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Patent number: 10884427
    Abstract: A travel route generating device for a work vehicle includes a cell memory to store cell information with respect to cells obtained by dividing a topographical map of a work field in which the work vehicle works. A travel probability memory is to store a travel probability with respect to each of the cells. The travel probability includes a left-turn travel probability, a straight travel probability, and a right-turn travel probability in each of the cells. Circuitry is configured to determine a travel direction in each of the cells based on the travel probability of each of the cells. The work vehicle is configured to travel through each of the cells in the travel direction. The circuitry is configured to change the travel probability with respect to affected cells affected by moving the work vehicle through each of the cells.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: January 5, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Kazuo Sakaguchi, Megumi Suzukawa, Sakura Tomita, Yuji Okuyama
  • Patent number: 10754342
    Abstract: A work vehicle support system includes: an own vehicle position detecting module configured to detect an own vehicle position of a work vehicle; and a work-unfinished region outer-shape map calculating section configured to calculate, during circulating work-traveling along an outer perimeter of a work scheduled region, an outer-shape map of a work-unfinished region in the work scheduled region, from own vehicle position data acquired by the own vehicle position detecting module.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: August 25, 2020
    Assignee: Kubota Corporation
    Inventors: Sakura Tomita, Yuki Kubota, Chiaki Komaru, Kazuo Sakaguchi, Shigeki Hayashi, Tetsuya Nakajima, Tomohiko Sano
  • Patent number: 10598505
    Abstract: A travel route generation apparatus includes a work field data input interface, a handwriting input interface, a memory, and circuitry. Work field data are to be input via the work field data input interface. The work field data includes data regarding a shape of a work field in which a work vehicle is to work. A handwriting locus is to be input via the handwriting input interface. The memory is to store travel route patterns. The circuitry is configured to select a designated travel route pattern from travel route patterns based on the handwriting locus and to generate, based on the designated travel route pattern and the work field data, a travel route along which the work vehicle is to travel in the work field.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 24, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Kazuo Sakaguchi, Megumi Suzukawa, Sakura Tomita, Yuji Okuyama
  • Publication number: 20200064144
    Abstract: A travel route management system includes an area setting unit that sets a work site to an outer peripheral area SA and an area CA to be worked on an inner side of the outer peripheral area SA, and a route element selecting unit that sequentially selects a next travel route element to be traveled on next, from among multiple mutually-parallel travel route elements, the travel route elements constituting a travel route that covers the area CA to be worked. The route element selecting unit selects a U-turn travel route for moving from a travel route element serving as a movement origin to a next travel route element serving as a movement destination, the selection being made on the basis of an interval between the movement origin and the movement destination.
    Type: Application
    Filed: November 29, 2017
    Publication date: February 27, 2020
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Publication number: 20200064863
    Abstract: A work vehicle automatic traveling system includes a route element selecting unit that, on the basis of state information, sequentially selects a next travel route element on which a work vehicle is to travel next, from a travel route element set and a circling route element set. The route element selecting unit includes a cooperative route element selection rule, which is employed when a plurality of work vehicles carry out work travel cooperatively in an area CA to be worked, and an independent route element selection rule, which is employed when a single independent work vehicle among the work vehicles carries out work travel independently in the area CA to be worked. When the independent work vehicle is carrying out independent work travel in the area CA to be worked, and a work vehicle aside from the host vehicle is carrying out circling travel based on the circling route element or is stopped, the next travel route element is selected on the basis of the independent route element selection rule.
    Type: Application
    Filed: November 29, 2017
    Publication date: February 27, 2020
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Publication number: 20190146513
    Abstract: This autonomous work vehicle travel system is provided with: a satellite positioning module 80 that outputs positioning data indicating a vehicle position of a work vehicle 1; an area setting unit that sets an area CA to be worked in a work site; a route managing unit that calculates a travel route element set, which is an aggregate of multiple travel route elements constituting a travel route that covers the area CA to be worked, and storing the travel route element set so as to be readable; a route element selecting unit that selects a next travel route element to be traveled in sequence from the travel route element set; and an autonomous travel controlling unit that causes the work vehicle 1 to travel autonomously on the basis of the next travel route element and the vehicle position.
    Type: Application
    Filed: June 28, 2017
    Publication date: May 16, 2019
    Inventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
  • Publication number: 20180164117
    Abstract: A travel route generation apparatus includes a work field data input interface, a handwriting input interface, a memory, and circuitry. Work field data are to be input via the work field data input interface. The work field data includes data regarding a shape of a work field in which a work vehicle is to work. A handwriting locus is to be input via the handwriting input interface. The memory is to store travel route patterns. The circuitry is configured to select a designated travel route pattern from travel route patterns based on the handwriting locus and to generate, based on the designated travel route pattern and the work field data, a travel route along which the work vehicle is to travel in the work field.
    Type: Application
    Filed: June 13, 2017
    Publication date: June 14, 2018
    Applicant: Kubota Corporation
    Inventors: Kazuo SAKAGUCHI, Megumi SUZUKAWA, Sakura TOMITA, Yuji OKUYAMA
  • Publication number: 20180136664
    Abstract: A work vehicle support system includes: an own vehicle position detecting module configured to detect an own vehicle position of a work vehicle; and a work-unfinished region outer-shape map calculating section configured to calculate, during circulating work-traveling along an outer perimeter of a work scheduled region, an outer-shape map of a work-unfinished region in the work scheduled region, from own vehicle position data acquired by the own vehicle position detecting module.
    Type: Application
    Filed: June 16, 2016
    Publication date: May 17, 2018
    Inventors: Sakura Tomita, Yuki Kubota, Chiaki Komaru, Kazuo Sakaguchi, Shigeki Hayashi, Tetsuya Nakajima, Tomohiko Sano
  • Publication number: 20180113471
    Abstract: A travel route generating device for a work vehicle includes a cell memory to store cell information with respect to cells obtained by dividing a topographical map of a work field in which the work vehicle works. A travel probability memory is to store a travel probability with respect to each of the cells. The travel probability includes a left-turn travel probability, a straight travel probability, and a right-turn travel probability in each of the cells. Circuitry is configured to determine a travel direction in each of the cells based on the travel probability of each of the cells. The work vehicle is configured to travel through each of the cells in the travel direction. The circuitry is configured to change the travel probability with respect to affected cells affected by moving the work vehicle through each of the cells.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 26, 2018
    Applicant: Kubota Corporation
    Inventors: Kazuo SAKAGUCHI, Megumi SUZUKAWA, Sakura TOMITA, Yuji OKUYAMA
  • Patent number: 9366620
    Abstract: The characteristics of a specimen are measured by holding the specimen on an aperture array structure having apertures, applying an electromagnetic wave to the aperture array structure, and detecting frequency characteristics of the electromagnetic wave reflected by the aperture array structure. A liquid is directly or indirectly attached to at least a part of a first principal surface. The electromagnetic wave is applied from side including a second principal surface. The apertures of the aperture array structure have a size which does not allow the liquid to leak from the first principal surface side to the second principal surface side, and the liquid is attached to the first principal surface of the aperture array structure in a state open to an atmosphere under air pressure.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 14, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takashi Kondo, Seiji Kamba, Yuichi Ogawa, Sakura Tomita
  • Publication number: 20140084164
    Abstract: The characteristics of a specimen are measured by holding the specimen on an aperture array structure having apertures, applying an electromagnetic wave to the aperture array structure, and detecting frequency characteristics of the electromagnetic wave reflected by the aperture array structure. A liquid is directly or indirectly attached to at least a part of a first principal surface. The electromagnetic wave is applied from side including a second principal surface. The apertures of the aperture array structure have a size which does not allow the liquid to leak from the first principal surface side to the second principal surface side, and the liquid is attached to the first principal surface of the aperture array structure in a state open to an atmosphere under air pressure.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Takashi Kondo, Seiji Kamba, Yuichi Ogawa, Sakura Tomita