Patents by Inventor Yukihisa Takaoka

Yukihisa Takaoka 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: 20210216075
    Abstract: A system automatically controls a work machine including a work implement. The system includes a load sensor and a processor. The load sensor detects load data indicative of a load applied to the work implement. The processor acquires the load data. The processor executes a load reduction control in order to cause the work machine to operate so as to reduce the load based on the load applied to the work implement during digging. The processor records, as a reference position, a position of the work machine when the load applied to the work implement during the digging becomes a predetermined threshold or greater. The processor determines a next starting position based on the reference position. The processor controls the work machine to start next digging from the next starting position.
    Type: Application
    Filed: September 17, 2019
    Publication date: July 15, 2021
    Inventor: Yukihisa TAKAOKA
  • Publication number: 20210148091
    Abstract: A controller acquires a size of a recess included in an actual topography within a work range. The controller determines whether the size of the recess is larger than a predetermined recess threshold. When the size of the recess is larger than the predetermined recess threshold, the controller determines a first area and a second area divided at a position of the recess in the work range. The controller determines a first target design topography indicative of a target trajectory of a work implement for the first area. The controller generates a command signal to operate the work implement according to the first target design topography.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 20, 2021
    Inventor: Yukihisa TAKAOKA
  • Publication number: 20210025142
    Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller determines a target design terrain indicating a target trajectory of the work implement, and operates the work implement to dump materials on a current terrain sequentially from a nearer side to a farther side of the work vehicle in accordance with the target design terrain. At least a part of the target design terrain is located above the current terrain.
    Type: Application
    Filed: January 17, 2019
    Publication date: January 28, 2021
    Applicant: KomaTsu Ltd.
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Publication number: 20210002870
    Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller acquires work range data indicative of a work range. The controller determines a division distance by dividing an entire length of the work range by a predetermined number of divisions. The controller determines a plurality of starting positions so that the distance between each starting position matches the division distance in the work range. The controller generates an instruction signal to actuate the work implement from the plurality of starting positions.
    Type: Application
    Filed: February 19, 2019
    Publication date: January 7, 2021
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Publication number: 20200407950
    Abstract: A control system for a work vehicle includes a controller. The controller determines a work zone at a work site. The controller determines a target design topography at least partially positioned below an actual topography at the work site. The controller specifies a non-work zone. The non-work zone is a portion in which the actual topography is positioned below the target design topography in the work zone. The controller modifies the work zone based on the non-work zone. The controller generates a command signal to operate a work implement of the work vehicle according to the modified work zone and the target design topography.
    Type: Application
    Filed: February 27, 2019
    Publication date: December 31, 2020
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Publication number: 20200370277
    Abstract: At least a portion of a first target design topography is positioned below an actual topography. At least a portion of a second target design topography is positioned below the actual topography and is inclined with respect to the first target design topography. A controller generates a command signal to operate a work implement according to the first target design topography in an area where the first target design topography is positioned above the second target design topography. The controller generates a command signal to operate the work implement according to the second target design topography in an area where the second target design topography is positioned above the first target design topography.
    Type: Application
    Filed: January 21, 2019
    Publication date: November 26, 2020
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Publication number: 20200370281
    Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller acquires an end position and a target distance of work performed by a work vehicle. The controller determines, as a start position, a position that is away from the end position by the target distance. The controller generates a command signal to start work from the start position toward the end position and to operate the work implement according to a target design topography. The controller modifies the target distance based on a result of the work.
    Type: Application
    Filed: February 19, 2019
    Publication date: November 26, 2020
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Publication number: 20200362541
    Abstract: A work machine includes a work implement. A control system for the work machine includes a controller. The controller acquires cliff position data. The cliff position data indicates a position of a cliff included in an actual topography of a work site. The controller determines a target design topography located below the actual topography. The controller determines an end position of work by the work implement from the cliff position data. The controller generates a command signal to move a work implement according to the end position and the target design topography.
    Type: Application
    Filed: August 6, 2018
    Publication date: November 19, 2020
    Inventor: Yukihisa TAKAOKA
  • Publication number: 20200157773
    Abstract: A controller for a work machine acquires current topography data indicating a current topography to be worked. The controller determines a target design topography based on the current topography. The target design topography indicates a target trajectory of a work implement. The controller generates a command signal to operate the work implement to excavate the current topography according to the target design topography. The controller acquires excavated topography data indicating a current topography that has been excavated. The controller modifies the target design topography to move the target design topography upwardly based on the excavated current topography.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 21, 2020
    Inventors: Yukihisa TAKAOKA, Kazuki KURE
  • Patent number: 4435587
    Abstract: A process for producing a silicon isocyanate compound which comprises reacting a silicon halide compound in which a fluoride compound is excluded with an isocyanate of the formula [I] M(NCO).sub.m or a cyanate of the formula [I'] M(OCN).sub.m wherein M represents a member selected from the group consisting of alkali metals and alkaline earth metals, and m is 1 or 2, in the presence of one or more reaction accelerators selected from the group consisting of alkylene glycols, polyalkylene glycols and, ether and ester derivatives thereof, thereby to prepare a silicon isocyanate compound containing at least one Si--NCO linkage.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: March 6, 1984
    Assignee: Matsumoto Seiyaku Kogyo Kabushiki Kaisha
    Inventors: Iwakichi Sugiyama, Kiyoshi Endo, Yukihisa Takaoka
  • Patent number: 4433127
    Abstract: A room temperature curable silicone composition of one-pack type comprising a silanol-terminated polyorganosiloxane compound, a silyl isocyanate compound and a Ti--O--P bond-containing organic compound has excellent storage stability, short curing time, and excellent physical properties and is not susceptible to discoloration.
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: February 21, 1984
    Assignee: Matsumoto Seiyaku Kogyo Kabushiki Kaisha
    Inventors: Iwakichi Sugiyama, Kiyoshi Endo, Yukihisa Takaoka
  • Patent number: 4328170
    Abstract: A process for producing an .alpha.-cyanoacrylate which comprises reacting a cyanoacetate with formaldehyde in the presence of a catalyst and a solvent, wherein a compound having phase transfer catalytic activity is used as the catalyst.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: May 4, 1982
    Assignee: Matsumoto Seiyaku Kogyo Kabushiki Kaisha
    Inventors: Makoto Okawara, Yukihisa Takaoka, Makoto Kameyama, Iwakichi Sugiyama
  • Patent number: 4036796
    Abstract: When a film-forming material is dried and hardened in the presence of an alkoxy radical-containing zirconium compound-cobalt carboxylate complex, the drying process and hardness of the resulting film are improved.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: July 19, 1977
    Assignee: Matsumoto Seiyaku Kogyo Kabushiki Kaisha
    Inventors: Iwakichi Sugiyama, Yukihisa Takaoka, Kiyoshi Endo