Patents Assigned to Hitachi, Ltd.
-
Patent number: 12230934Abstract: A macroscopic entanglement state in which a polarization state has a strong quantum correlation is realized by use of a macroscopic laser light. A laser oscillator includes a ring resonator having an optical fiber ring, an optical amplifier for maintaining an amplitude of a laser pulsed light propagating on the optical fiber ring, and three optical fibers that are connected with respective polarization controllers, and, after changing a polarization state of the laser pulsed light being a qubit extracted at a predetermined branch ratio from the optical fiber ring by the polarization controllers, couples the changed laser pulsed light whose polarization state has been changed with the laser pulsed light propagating on the optical fiber ring, and each polarization controller rotates the polarization state of the laser pulsed light with an S1 axis, an S2 axis, and an S3 axis, which are orthogonal to each other, as a rotation axis.Type: GrantFiled: March 7, 2022Date of Patent: February 18, 2025Assignee: HITACHI, LTD.Inventor: Shinichi Saito
-
Patent number: 12228319Abstract: There is provided a maintenance recommendation system that creates an estimation model of failure modes of a new model of a device only from an occurrence probability of a failure mode. Based on an estimation model for an old model, the occurrence probability of a failure mode where a component is changed from the old model is updated only on a spot of a component change, and this creates an estimation model of failure modes intended for a new model newly commercially available. Thus, the attachment of the inspection result and the failure mode of a faulty facility is learned, an estimation model of failure modes is created to support facility maintenance services for a new model newly commercially available having a small amount of data of inspection results in failure daily reports for difficulty in learning.Type: GrantFiled: September 27, 2021Date of Patent: February 18, 2025Assignee: Hitachi, Ltd.Inventors: Takayuki Uchida, Kazuki Horiwaki, Shuntaro Hitomi, Yasuharu Namba
-
Publication number: 20250055836Abstract: Disclosed is an information sharing system that includes a concealment processing section, an analysis section, and an information transmission section. The concealment processing section conceals information collected from any one or more of multiple organizations in accordance with the level of credibility between the organizations. The analysis section makes an analysis by using the information concealed by the concealment processing section and an analysis logic collected from any one or more of the multiple organizations. The information transmission section transmits the result of analysis by the analysis section to any one or more of the multiple organizations, and allows each organization to share the result of analysis.Type: ApplicationFiled: December 28, 2021Publication date: February 13, 2025Applicant: Hitachi, Ltd.Inventors: Yuki UEKI, Tomohiro SHIGEMOTO, Nobutaka KAWAGUCHI, Katsuya NISHIJIMA
-
Publication number: 20250050586Abstract: An additive manufacturing condition search device includes a defect database that accumulates a material, shape information, an additive manufacturing condition, monitoring information during modeling, and defect information in association with each other, a first machine learning unit that outputs an additive manufacturing condition corresponding to material information and device information, and outputs a new additive manufacturing condition from a combination of a plurality of the additive manufacturing conditions and the defect information, a specification unit that causes an additive manufacturing apparatus to perform modeling by the additive manufacturing condition, acquires the monitoring information during modeling, and acquires the shape information and the defect information by inspection of a modeled object, a second machine learning unit in which a model trained by using the defect database as train data estimates defect information of the modeled object from the monitoring information and storesType: ApplicationFiled: November 9, 2022Publication date: February 13, 2025Applicant: HITACHI, LTD.Inventors: Hirotsugu KAWANAKA, Tomonori KIMURA, Isamu TAKAHASHI, Yusuke YASUDA, Seunghwan PARK
-
Patent number: 12220824Abstract: A correction device includes: a measurement point generation unit configured to generate a plurality of candidate points corresponding to posture of a robot within a movable range of the robot based on robot mechanism model information representing a mechanism of the robot and end effector information concerning an end effector installed in the robot, and determine, among the generated plurality of candidate points, a candidate point at which joint torque ? of each joint of the robot in the posture corresponding to each candidate point is equal to or more than a predetermined threshold as a measurement point; and a parameter identification unit configured to calculate a position error between a calculated position and a measured position of the end effector in the posture corresponding to the measurement point and identify mechanism error parameters so that the calculated position error is minimized.Type: GrantFiled: March 1, 2023Date of Patent: February 11, 2025Assignee: Hitachi, Ltd.Inventors: Masaaki Maeda, Kaoru Kitajima
-
Patent number: 12222864Abstract: Data can be rapidly and flexibly converted. A data conversion apparatus stores monitoring target management information in which a monitoring target is associated with a controller type representing a type of a controller configured to control the monitoring target, and data conversion rule information in which a data set in units of the controller type is registered, the data set in units of the controller type defining a conversion rule indicating a data conversion method for the controller type. A calculation unit loads the data conversion rule information into the cache memory, specifies a monitoring target corresponding to data received from an edge device, specifies a controller type corresponding to the specified monitoring target by referring to the monitoring target management information, reads a conversion rule corresponding to the specified controller type from the cache memory, and converts the data using the conversion rule.Type: GrantFiled: March 7, 2022Date of Patent: February 11, 2025Assignee: HITACHI, LTD.Inventors: Naushad Shakoor, Koichi Okita, Yuta Sekiguchi
-
Patent number: 12224534Abstract: A wiring component with temperature sensor includes an electric wire, a temperature sensor including a detection unit configured to detect temperature of the electric wire and a plurality of lead wires, and a plurality of connector pins respectively connected to the plurality of lead wires. The electric wire, the temperature sensor and the plurality of connector pins are collectively held by a holder made of a resin. The holder includes a connector housing member configured to hold the plurality of connector pins and a molded resin member covering a portion of the connector housing member.Type: GrantFiled: December 16, 2021Date of Patent: February 11, 2025Assignees: Proterial, Ltd., Hitachi Astemo, Ltd.Inventors: Keisuke Fukuchi, Junjie Shen
-
Patent number: 12222725Abstract: According to the present invention, a moving body capable of moving within a preset range of movement acquires an image from the environment surrounding the location of the moving body, and determines entry determination conditions for obtaining a result of an entry determination as to whether or not the moving body is allowed to enter a region identified by the location of the moving body and the image. A management terminal outputs the entry determination conditions and the image to an output device, and receives modification information relating to the entry determination conditions from an input device. A server uses the modification information received by the input device of the management terminal to perform learning, including updating of the entry determination conditions, thereby setting the movement range of the moving body, the movement of which is controlled in accordance with the entry determination result.Type: GrantFiled: November 18, 2019Date of Patent: February 11, 2025Assignee: Hitachi, Ltd.Inventors: Hiroki Kanayama, Kenjiro Yamamoto, Taishi Ueda, Hiroshi Ito
-
Patent number: 12223030Abstract: A policy determination unit acquires a rule for a request for accessing data based on a preset access control policy, and selects whether to acquire attribute information about an attribute of each record of the data from the outside of a database in which the data is stored. As a result, when selecting acquisition of the attribute information, the attribute information is acquired and the rule based on the attribute information is evaluated, and when selecting no acquisition of the attribute information, the database is caused to execute filtering of the data based on the rule. Then, based on the evaluation result of the rule or the filtering execution result, a record of the data corresponding to the access request is acquired from the database.Type: GrantFiled: June 17, 2022Date of Patent: February 11, 2025Assignee: HITACHI, LTD.Inventor: Kentaro Kakui
-
Publication number: 20250043782Abstract: The objective of the present invention is to provide a liquid feed system for a compressor, capable of easily forming fine droplets of a liquid to be injected into the compressor. A liquid feed system 100 of a compressor 1 for compressing a gas injects a liquid 50 into the inside of the compressor 1. The liquid feed system 100 adjusts the temperature of the liquid 50 to be injected into the compressor 1 to a temperature at least equal to a saturation temperature Tf corresponding to a pressure inside the compressor 1, and adjusts the temperature to a temperature lower than a saturation temperature Ti corresponding to a pressure of the liquid 50 at the time of injection into the compressor 1, and then injects the liquid 50 into the compressor 1.Type: ApplicationFiled: October 11, 2022Publication date: February 6, 2025Applicant: Hitachi, Ltd.Inventors: Tomoyuki HOSAKA, Eiji ISHII, Kazuki YOSHIMURA
-
Publication number: 20250046211Abstract: The present disclosure provides a behavior assistance device which improves the autonomy and skill level of a person in question and assists in the behavior of the person in question, so as to prevent a degradation in overall efficiency even when the assistance for the behavior of the person in question is no longer available. A behavior assistance device, which assists in the behavior of a person in question according to the surrounding environment of the person in question, comprises a learning unit, a prediction unit, and a behavior assistance unit. The learning unit learns environmental information pertaining to the environment and behavioral information pertaining to the behavior of the person in question for the environment, and generates a behavior model of the person in question. The prediction unit generates a prediction behavior of the person in question on the basis of the behavior model and the environmental information.Type: ApplicationFiled: November 15, 2022Publication date: February 6, 2025Applicant: HITACHI, LTD.Inventors: Hiroyuki YAMADA, Yuto IMANISHI, Go SAKAYORI
-
Patent number: 12216688Abstract: Provided is an information system and an information collection method that are capable of acquiring desired site data while preventing an increase in cost. A link logic definition unit 17 holds a link logic that is definition information defining a correspondence relation between an item value of the site data and a reference value that is an external value of transaction data used for acquiring the item value. A link logic data acquisition unit 18 acquires the item value of the site data by using the link logic.Type: GrantFiled: September 24, 2021Date of Patent: February 4, 2025Assignee: HITACHI, LTD.Inventors: Thanh Hai Vo, Dan Xu, Shinichi Nakamura, Noboru Fujita, Daisuke Okabe
-
Patent number: 12217469Abstract: A photographing apparatus includes an irradiation unit configured to irradiate a living body with beams of light having a plurality of wavelengths different from one another, a photographing unit configured to photograph the living body irradiated by the irradiation unit to generate image data of the living body, an image processing module configured to generate, based on the image data generated by the photographing unit, a plurality of pieces of wavelength separation image data, by separation into the plurality of wavelengths, and a control module configured to control, based on the image data and on the plurality of pieces of wavelength separation image data generated by the image processing module, irradiation light amounts of the beams of light having the plurality of wavelengths.Type: GrantFiled: September 13, 2022Date of Patent: February 4, 2025Assignee: Hitachi, Ltd.Inventors: Yusuke Matsuda, Naoto Miura, Akio Nagasaka, Yo Nonomura, Keiichiro Nakazaki, Masahiro Kato
-
Patent number: 12211256Abstract: The invention supports creation of models for recognizing attributes in an image with high accuracy. An image recognition support apparatus includes an image input unit configured to acquire an image, a pseudo label generation unit configured to recognize the acquired image based on a plurality of types of image recognition models and output recognition information, and generate pseudo labels indicating attributes of the acquired image based on the output recognition information, and a new label generation unit configured to generate new labels based on the generated pseudo labels.Type: GrantFiled: February 23, 2022Date of Patent: January 28, 2025Assignee: Hitachi, Ltd.Inventors: Soichiro Okazaki, Quan Kong, Tomoaki Yoshinaga
-
Patent number: 12210992Abstract: A method for sharing and analyzing information to support execution of multi-party workflows in an electrification ecosystem. The method may include creating or updating shared data schema and data governance rules associated with data to be received from a plurality of parties, wherein the plurality of parties are stakeholders to the multi-party workflows, and the data is associated with a battery system; submitting the shared data schema and the data governance rules for approval to the plurality of parties; creating or updating decision logics associated with the data to be received; submitting the decision logics for approval to the plurality of parties; receiving the data from the plurality of parties; and applying the approved shared data schema, the approved data governance rules, and the approved decision logics to the multi-party workflows and the received data from the plurality of parties to perform automated decision optimization.Type: GrantFiled: October 28, 2022Date of Patent: January 28, 2025Assignee: Hitachi, Ltd.Inventors: Amit Kumar, Pierre Huyn, Prasun Singh, Ravigopal Vennelakanti, Umeshwar Dayal
-
Patent number: 12211149Abstract: A drive assist apparatus includes a storage unit that stores a three-dimensional model indicating a moving region, an input unit that receives, from a sensor group installed in the moving region, first height information indicating a first height which is a height of the mobile object and second height information indicating a second height which is a height of an object that satisfies a predetermined distance criterion from the mobile object, an extraction unit that extracts, from the three-dimensional model, a first plan view based on the first height information and a second plan view based on the second height information, a generation unit that generates a combined map for two-dimensionally showing the moving region and assisting the driving of the mobile object by combining the first plan view and the second plan view, and an output unit that transmits a generated combined map to the mobile object.Type: GrantFiled: February 23, 2022Date of Patent: January 28, 2025Assignee: HITACHI, LTD.Inventors: Hang Liu, Akihiko Hyodo, Hidenori Sakaniwa
-
Patent number: 12210975Abstract: A data analysis apparatus using a first neural network comprises: a setting unit configured to receive output data from the first input layer, set a weight of each layer in the first intermediate layer based on the output data and a second learning parameter, and output said weight to the first output layer; a weight processing unit included in the first output layer, the weight processing unit being configured to weight each output data with the weight of each layer of the first intermediate layer that was set by the setting unit; and a calculation unit included in the first output layer, the calculation unit being configured to calculate prediction data based on each output data that was weighted by the weight processing unit and a third learning parameter.Type: GrantFiled: February 27, 2018Date of Patent: January 28, 2025Assignee: Hitachi, Ltd.Inventor: Takuma Shibahara
-
Patent number: 12210557Abstract: An input of a data group is received in which tag ID-appended data and time information on time the tag ID-appended data was created are associated; the number of instances is counted of the tag ID-appended data, to which a tag identified by a tag ID has been appended, occurring in each time slice for each tag ID included in the tag ID-appended data and for each time slice obtained by dividing a timeline by a predetermined duration, and the tags are extracted as a few exuberant and useful minority tags in a case where the counted number of instances is greater than a predetermined instance number threshold value and where a ratio of the time slices in which the number of instances does not satisfy a predetermined criterion is greater than a predetermined ratio threshold value; and data in which a score satisfies a predetermined criterion is determined.Type: GrantFiled: February 22, 2022Date of Patent: January 28, 2025Assignee: HITACHI, LTD.Inventors: Ai Toshikuni, Tadahisa Kato, Yasunari Takai, Yasuto Nishiwaki
-
Publication number: 20250026017Abstract: A robot system including a first robot, a second robot, a first robot control device for controlling the first robot, a second robot control device for controlling the second robot, and a sensor, the first and second robots carrying out a coordinated operation, wherein: the first robot control device includes a first trajectory planning unit for planning the action of the first robot, a first control unit for executing the planned action of the first robot, a first collision prediction unit for predicting a collision between the first or second robot and an external disturbance on the basis of information from the sensor, and a first interlocking-preventing unit; the second robot control device includes a second trajectory planning unit for planning the action of the second robot, a second control unit for executing the planned action of the second robot, a second collision prediction unit for predicting a collision between the first or second robot and an external disturbance on the basis of information fromType: ApplicationFiled: October 28, 2022Publication date: January 23, 2025Applicant: Hitachi, Ltd.Inventors: Toshiharu SUGAWARA, Toshiaki NAKAMURA, Gyanendra Nath TRIPATHI, Shoichi HANDA
-
Publication number: 20250028470Abstract: There is provided a storage migration method including sending, by a maintenance PC, a power-off instruction for migration to a migration source storage, sending, by the migration source storage, storage configuration information to the maintenance PC, turning off the power of the migration source storage when it is confirmed that the maintenance PC has received the storage configuration information, sending, by the maintenance PC, the storage configuration information and a power-on instruction for migration to a migration destination storage, and outputting, by the maintenance PC, a migration completion notification when a disk drive relocated from the migration source storage can be confirmed to be set in the migration destination storage.Type: ApplicationFiled: March 5, 2024Publication date: January 23, 2025Applicant: Hitachi, Ltd.Inventors: Yoshiki TAMURA, Hiroshi MIKI, Yusuke NONAKA, Yudai TAKAYAMA