Patents by Inventor Atsuko Enomoto

Atsuko Enomoto 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: 11707845
    Abstract: An assembly planning device: holds a partial-order graph showing assembly operations of parts and an order constraint based on a partial-order relationship of the assembly operations, an operation sequence template showing an operation sequence and a required time of the operation sequence, and part information showing parts that can be assembled by robots; refers to the part information to generate allocation plans in which the robot are allocated to the assembly operations shown by the partial-order graph; for each of the allocation plans, refers to the operation sequence template to allocate an operation sequence for each assembly operation shown by the allocation plan; calculates movement times of the robots in the allocated operation sequence; calculates an operation time in the allocation plan based on the movement times and the required time shown by the operation sequence template; and selects an allocation plan based on the operation times.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: July 25, 2023
    Assignee: HITACHI, LTD.
    Inventors: Atsuko Enomoto, Yuta Yamauchi, Reiko Inoue
  • Patent number: 11703836
    Abstract: A line configuration planning device determine a task sequence during production of the to-be-produced product and the task time by the worker or the automatic machine for each task on the basis of the task information and the task time information. The line configuration planning device determine a required cycle time for producing the to-be-produced product on the basis of the production plan information. The line configuration planning device generate, on the basis of the determined task sequence, task time, and required cycle time, an allocation proposal for the worker and the automatic machine such that an estimated cycle time for producing the to-be-produced product is less than or equal to the required cycle time. The line configuration planning device determine a production line configuration for the to-be-produced product on the basis of the allocation proposal and the equipment configuration information.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 18, 2023
    Assignee: HITACHI, LTD.
    Inventors: Daiki Kajita, Atsuko Enomoto
  • Publication number: 20230221706
    Abstract: It is possible to more efficiently make a factory plan configured to maximize a productivity index. Provided is a factory plan device including a calculation unit configured to specify a process and a production resource candidate based on a shape of a component of a target product by inputting past production performance data of a product, production volume data, design data of the product, specification data of a production resource, and layout data of a factory, and to calculate a process plan configured to determine order of the process and the production resource, a production plan configured to determine working date and time of the production resource, and a layout of the production resource so as to maximize a predetermined productivity index in the factory.
    Type: Application
    Filed: May 10, 2021
    Publication date: July 13, 2023
    Inventors: Takahiro NAKANO, Atsuko ENOMOTO, Daiki KAJITA
  • Publication number: 20220075355
    Abstract: In an arrangement design of a robot cell and of robot work, a planning device searches an arrangement graph, that shows candidates for relative positions and orientations between a robot and a fixture; searches a disassembly task sequence, of disassembly tasks that are operations of the robot for disassembling components from the assembly in an arrangement of the relative positions and orientations between the robot and the fixture, and searches for, based on a point sequence of positioning relay points of the robot, a trajectory in which the robot disassembles the components from the assembly; and generates assembly tasks formed of a point sequence obtained by reversing the point sequence of the relay points, an assembly trajectory of the robot which is reverse to a disassembly trajectory formed of interpolation points between the point sequences, and an assembly sequence, which is a reverse order of the disassembly task sequence.
    Type: Application
    Filed: August 18, 2021
    Publication date: March 10, 2022
    Inventors: Atsuko ENOMOTO, Daiki KAJITA, Takahiro NAKANO, Takaharu MATSUI
  • Publication number: 20210311464
    Abstract: A line configuration planning device determine a task sequence during production of the to-be-produced product and the task time by the worker or the automatic machine for each task on the basis of the task information and the task time information. The line configuration planning device determine a required cycle time for producing the to-be-produced product on the basis of the production plan information. The line configuration planning device generate, on the basis of the determined task sequence, task time, and required cycle time, an allocation proposal for the worker and the automatic machine such that an estimated cycle time for producing the to-be-produced product is less than or equal to the required cycle time. The line configuration planning device determine a production line configuration for the to-be-produced product on the basis of the allocation proposal and the equipment configuration information.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 7, 2021
    Inventors: Daiki KAJITA, Atsuko ENOMOTO
  • Publication number: 20200406460
    Abstract: An assembly planning device: holds a partial-order graph showing assembly operations of parts and an order constraint based on a partial-order relationship of the assembly operations, an operation sequence template showing an operation sequence and a required time of the operation sequence, and part information showing parts that can be assembled by robots; refers to the part information to generate allocation plans in which the robot are allocated to the assembly operations shown by the partial-order graph; for each of the allocation plans, refers to the operation sequence template to allocate an operation sequence for each assembly operation shown by the allocation plan; calculates movement times of the robots in the allocated operation sequence; calculates an operation time in the allocation plan based on the movement times and the required time shown by the operation sequence template; and selects an allocation plan based on the operation times.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 31, 2020
    Inventors: Atsuko ENOMOTO, Yuta YAMAUCHI, Reiko INOUE
  • Patent number: 10324452
    Abstract: An apparatus is configured including an information obtaining unit that extracts information on plural parts' attributes, locations, and adjoining relations with other parts; a unit that sorts parts by part type and detects a distinctive shape from 3D CAD model; a unit that represents adjoining relations between parts in an assembly graph; a unit that creates disassembling directions and a disassembling sequence based on the assembly graph and, by reversing them, derives an assembling sequence and assembling directions; a unit that computes an index indicating a quality of easiness of assembling a part by subtracting the sum of deficiency points per part from a reference score; a unit that creates virtual worker positions, postures, and viewpoints according to assembling sequence and evaluates workability; and a unit that computes an evaluation value per part by the index of easiness of assembling the part and a total evaluation value of assembly workability.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: June 18, 2019
    Assignee: HITACHI, LTD.
    Inventors: Noriaki Yamamoto, Atsuko Enomoto
  • Patent number: 9390534
    Abstract: Provided is a technology for automatically generating a camera pose enabling the viewing of an operation of an object component in a work instruction animation. A primary inertia axis of an assembled item is calculated from inertia tensor information of a plurality of components constituting the assembled item. Adjacency relationship information indicating an adjacency relationship between the plurality of components is acquired. Based on the adjacency relationship information of the plurality of components, an assembly sequence and an assembly motion vector indicating an assembled direction of the plurality of components are generated such that each of the plurality of components does not interfere with a proximate component. Further, a plurality of camera eye sights each having a camera axis about the primary inertia axis and providing an operator's vision candidate during the generation of the assembly animation is arranged.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 12, 2016
    Assignee: HITACHI, LTD.
    Inventor: Atsuko Enomoto
  • Publication number: 20160185574
    Abstract: A technique of calculating a trajectory including preferable suspension posture and arcuate trajectory without interference is provided in relation to the system that calculates the trajectory in the suspension conveyance using conveying equipment.
    Type: Application
    Filed: June 19, 2014
    Publication date: June 30, 2016
    Inventors: Atsuko ENOMOTO, Norisuke FUJII, Youichi NONAKA
  • Publication number: 20160116911
    Abstract: An assembly order generation device includes a radial/axial direction component detector which detects a component existing in a radial direction of a featured shape and a component existing in an axial direction of the component in a 3D CAD model. A directed graph expresses a connection precedence relationship in which the component is depicted by a node and a connection precedence relationship between the components which is depicted by a directed edge based on the detection result. A unit of disassembling and a disassembling order proposal based on the connection precedence relationship is generated, and an assembling order/direction/motion generation unit generates a disassemble direction based on the unit of disassembling and the disassembling order proposal and an assembly graph to generate a disassembling direction and a disassembling order, and reversely converts the generated disassembling direction and the generated disassembling order to derive an assembling order and an assembling direction.
    Type: Application
    Filed: June 12, 2013
    Publication date: April 28, 2016
    Inventors: Noriaki YAMAMOTO, Hirofumi TAGUCHI, Atsuko ENOMOTO
  • Publication number: 20150293525
    Abstract: An apparatus is configured including an information obtaining unit that extracts information on plural parts' attributes, locations, and adjoining relations with other parts; a unit that sorts parts by part type and detects a distinctive shape from 3D CAD model; a unit that represents adjoining relations between parts in an assembly graph; a unit that creates disassembling directions and a disassembling sequence based on the assembly graph and, by reversing them, derives an assembling sequence and assembling directions; a unit that computes an index indicating a quality of easiness of assembling a part by subtracting the sum of deficiency points per part from a reference score; a unit that creates virtual worker positions, postures, and viewpoints according to assembling sequence and evaluates workability; and a unit that computes an evaluation value per part by the index of easiness of assembling the part and a total evaluation value of assembly workability.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 15, 2015
    Inventors: Noriaki Yamamoto, Atsuko Enomoto
  • Publication number: 20150186457
    Abstract: Provided is a technology for efficiently extracting from sub-assemblies designed in the past a sub-assembly similar to a newly designed sub-assembly. A system is adopted where information about an assembly model created by 3D-CAD is stored in a database, and an assembly portion to be searched for is also input as a 3D assembly model. A feature value and shape similarity of components of a sub-assembly as the object of search, and the degree of partial correspondence in adjacency relationship of the components are determined, and the similar sub-assembly is extracted from the entire assembly model. By a search system such that a component requiring shape similarity consideration and a component not requiring shape similarity consideration are mixed and the similarity of the adjacency relationship of the components is inquired, the entire assembly model is searched for a sub-assembly portion similar to a predetermined sub-assembly.
    Type: Application
    Filed: May 28, 2013
    Publication date: July 2, 2015
    Inventors: Atsuko Enomoto, Noriaki Yamamoto, Yumiko Ueno
  • Publication number: 20140118358
    Abstract: Provided is a technology for automatically generating a camera pose enabling the viewing of an operation of an object component in a work instruction animation. A primary inertia axis of an assembled item is calculated from inertia tensor information of a plurality of components constituting the assembled item. Adjacency relationship information indicating an adjacency relationship between the plurality of components is acquired. Based on the adjacency relationship information of the plurality of components, an assembly sequence and an assembly motion vector indicating an assembled direction of the plurality of components are generated such that each of the plurality of components does not interfere with a proximate component. Further, a plurality of camera eye sights each having a camera axis about the primary inertia axis and providing an operator's vision candidate during the generation of the assembly animation is arranged.
    Type: Application
    Filed: April 13, 2012
    Publication date: May 1, 2014
    Applicant: HITACHI, LTD.
    Inventor: Atsuko Enomoto