Patents by Inventor Daiki Kajita
Daiki Kajita 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: 20240077842Abstract: An adjustment support system includes a controller and a storage, in which the storage holds production line model data related to a model of one or more production facilities in a cyberspace of a production line and actual machine data obtained by actually measuring one or more production facilities disposed in an actual space of the production line, the controller calculates a difference between the production line model data and the actual machine data, upon determination that the difference exists on a basis of a result of calculating the difference, the controller creates one or more adjustment plans each targeting at least one of the model of the one or more production facilities in the cyberspace or the one or more production facilities disposed in the actual space, and the controller outputs the one or more adjustment plans having been created.Type: ApplicationFiled: May 31, 2023Publication date: March 7, 2024Inventors: Reiko INOUE, Daiki KAJITA, Takahiro NAKANO
-
Publication number: 20240036561Abstract: Provided is a quasi-optimal solution for a production line such that a KPI is further improved without deteriorating production throughput after the production line is designed. The invention includes: a storage unit configured to store product CAD information pertaining to a shape of a product, component attribute information pertaining to an attribute of a component, module group specification information pertaining to a specification of a module group implemented by combining attributes of modules as a production resource of the product for respective work processes of the component, and module specification information pertaining to a specification of the module; and a computation unit configured to design a production line by executing an equipment design, a control design, a process design, and an arrangement design in this order.Type: ApplicationFiled: September 29, 2021Publication date: February 1, 2024Inventors: Takahiro NAKANO, Daiki KAJITA, Daisuke TSUTSUMI
-
Publication number: 20230400843Abstract: A line designing device including a calculation unit and a storage unit, in which the storage unit holds facility information indicating a specification of each module, process design information indicating a component for manufacturing a product, work on the component, and a module used for the work, standard module information indicating a type of each of the modules and another module attachable thereto, and inter-module connection information indicating a connection specification between the modules, the module includes at least one of a facility and a device used for the work, and the calculation unit generates line configuration information identifying the module constituting a manufacturing line for manufacturing the product and connection between the modules based on the facility information, the process design information, the standard module information, and the inter-module connection information, and outputs information indicating a module constituting the manufacturing line and connection betweenType: ApplicationFiled: October 14, 2021Publication date: December 14, 2023Inventors: Naohiro HAYASHI, Takahiro IWATA, Hiroshi HOMMA, Daiki KAJITA
-
Publication number: 20230367296Abstract: This industrial system is characterized by being provided with: a storage unit that stores design data used when constructing an industrial line; a simulation execution unit that executes a simulation of movement of the industrial line, based on the design data; and a detection unit that compares a result of the simulation with the movement of the industrial line during operation and detects an abnormality in components of the industrial line. With such a configuration and movement, the present invention can be utilized for line operation support and high-resolution abnormality detection.Type: ApplicationFiled: November 2, 2020Publication date: November 16, 2023Applicant: Hitachi, Ltd.Inventors: Nobuhiro KAKENO, Yoshiteru KATSUMURA, Daiki KAJITA, Takahiro NAKANO, Miho ARAI
-
Patent number: 11703836Abstract: 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: GrantFiled: March 24, 2021Date of Patent: July 18, 2023Assignee: HITACHI, LTD.Inventors: Daiki Kajita, Atsuko Enomoto
-
Publication number: 20230221706Abstract: 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: ApplicationFiled: May 10, 2021Publication date: July 13, 2023Inventors: Takahiro NAKANO, Atsuko ENOMOTO, Daiki KAJITA
-
Publication number: 20230011093Abstract: An adjustment support system comprises an arithmetic unit and a storage unit. The storage unit stores sensor information including features of a sensor that captures an image of a target, and imaging target information including dimensions, shape, and disposition of an imaging target of the sensor, and the arithmetic unit generates a plurality of candidates for an imaging position and posture of the imaging target by the sensor, and determines whether or not positional deviation of the imaging target in a plurality of directions is detectable from a captured image obtained by the sensor based on the sensor information and the imaging target information, with respect to each of the plurality of candidates for the imaging position and the imaging posture. The arithmetic unit then determines an imaging position and posture for the sensor to actually capture an image of the target from the plurality of candidates.Type: ApplicationFiled: June 30, 2022Publication date: January 12, 2023Applicant: Hitachi, Ltd.Inventors: Masaaki MAEDA, Daiki KAJITA
-
Publication number: 20220075355Abstract: 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: ApplicationFiled: August 18, 2021Publication date: March 10, 2022Inventors: Atsuko ENOMOTO, Daiki KAJITA, Takahiro NAKANO, Takaharu MATSUI
-
Publication number: 20210311464Abstract: 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: ApplicationFiled: March 24, 2021Publication date: October 7, 2021Inventors: Daiki KAJITA, Atsuko ENOMOTO
-
Publication number: 20210300166Abstract: A door weather strip having a fin portion provided to a corner portion in a rear portion of a door of a motor vehicle is provided. The fin portion is formed by molding and mounted so as to cover the inside of the motor vehicle in the corner portion. On the mounting surface side of the fin portion of the door weather strip, a drainage lip is provided. The drainage lip protrudes from the mounting surface to the outside of the vehicle and extends in a linear shape or an upward protruding arc shape from the front to the rear of the motor vehicle and further downward. The drainage lip does not come into contact with a rear end rib formed on the fin portion at a rear end of the motor vehicle, and a drainage recess is formed between the rear end rib and a door frame.Type: ApplicationFiled: March 19, 2021Publication date: September 30, 2021Inventors: Daiki Kajita, Kiyotaka Tamaoki, Yoshitaka Konishi
-
Patent number: 11072070Abstract: A trajectory planning apparatus including a joint axis classification unit for classifying a plurality of joint axes of a robot into axis groups, according to joint axis classification information for classifying into the axis groups including at least a path search axis group, a path search unit for searching for a path of an angle of the joint axis classified into the path search axis group that minimizes an evaluation function for evaluating a planed trajectory, based on trajectory start point information representing a posture of the robot at a start point of the planed trajectory and trajectory endpoint information representing a posture of the robot at an end point of the planned trajectory, and an axis group angle calculation unit for calculating an angle of the joint axis classified into each axis group other than the path search axis group during the search of the path.Type: GrantFiled: October 22, 2018Date of Patent: July 27, 2021Assignee: HITACHI, LTD.Inventors: Takashi Seno, Daisuke Tsutsumi, Daiki Kajita, Nobuaki Nakasu
-
Publication number: 20190275675Abstract: A trajectory planning apparatus including a joint axis classification unit for classifying a plurality of joint axes of a robot into axis groups, according to joint axis classification information for classifying into the axis groups including at least a path search axis group, a path search unit for searching for a path of an angle of the joint axis classified into the path search axis group that minimizes an evaluation function for evaluating a planed trajectory, based on trajectory start point information representing a posture of the robot at a start point of the planed trajectory and trajectory endpoint information representing a posture of the robot at an end point of the planned trajectory, and an axis group angle calculation unit for calculating an angle of the joint axis classified into each axis group other than the path search axis group during the search of the path.Type: ApplicationFiled: October 22, 2018Publication date: September 12, 2019Applicant: HITACHI, LTD.Inventors: Takashi SENO, Daisuke TSUTSUMI, Daiki KAJITA, Nobuaki NAKASU
-
Patent number: 9419490Abstract: The present invention is directed to connection technology for providing a sufficient connection strength in bonding a wire material and a twisted wire each having a large diameter when directly bonding the wire material, which is used for a stator of an electric motor and a generator, and the twisted wire serving as a lead wire by ultrasonic bonding. A twisted wire having a plurality of core wires is hardened by ultrasonic vibration using a pressurized vibration tool when the twisted wire is connected to a wire material. After that, the twisted wire is reversed such that the hardened surface thereof faces the wire material and then comes into contact with the wire material. In this state, ultrasonic waves are applied to the hardened surface from the opposite side using the vibration tool, thereby connecting the hardened surface of the twisted wire and the wire material.Type: GrantFiled: November 11, 2011Date of Patent: August 16, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Daiki Kajita, Nobuaki Nakasu, Hiroshi Hamano, Yoshimi Mori, Takeshi Matsuo
-
Publication number: 20130293045Abstract: The present invention is directed to connection technology for providing a sufficient connection strength in bonding a wire material and a twisted wire each having a large diameter when directly bonding the wire material, which is used for a stator of an electric motor and a generator, and the twisted wire serving as a lead wire by ultrasonic bonding. A twisted wire having a plurality of core wires is hardened by ultrasonic vibration using a pressurized vibration tool when the twisted wire is connected to a wire material. After that, the twisted wire is reversed such that the hardened surface thereof faces the wire material and then comes into contact with the wire material. In this state, ultrasonic waves are applied to the hardened surface from the opposite side using the vibration tool, thereby connecting the hardened surface of the twisted wire and the wire material.Type: ApplicationFiled: November 11, 2011Publication date: November 7, 2013Applicant: Hitachi Automotive Systems, Ltd.Inventors: Daiki Kajita, Nobuaki Nakasu, Hiroshi Hamano, Yoshimi Mori, Takeshi Matsuo