Patents Assigned to Fujitsu Limited
  • Publication number: 20240094459
    Abstract: An optical waveguide includes a diamond layer including a first surface, a second surface and a diamond layer including a complex defect; a first clad layer in contact with the first surface; a second clad layer in contact with the second surface and including a polarity; and a metal layer in Schottky contact with the second clad layer.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuro ISHIGURO, Tetsuya MIYATAKE, Kenichi KAWAGUCHI, Toshiki IWAI, Yoshiyasu DOI, Shintaro SATO
  • Publication number: 20240094470
    Abstract: An optical transceiver includes: an optical transceiver circuit; a light source device to multiplex light rays emitted from light source elements having different wavelengths, and output multiplexed light; a demultiplexer to demultiplex the light output from the light source device into wavelengths to supply the wavelengths to the optical transceiver circuit; monitors to monitor the wavelengths at output ports of the demultiplexer, respectively; and a wavelength controller to control the wavelengths of the light source elements, based on monitoring results of the monitors, wherein the demultiplexer includes unit circuits in each of which three asymmetric Mach-Zehnder interferometers having a predetermined arm length difference are cascaded in a tree shape, and each of the monitors is arranged at an output waveguide of an asymmetric Mach-Zehnder interferometer at an end of the cascaded tree, to be connected to the wavelength controller via a signal line.
    Type: Application
    Filed: July 21, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventors: Jun MATSUI, Tomoyuki AKIYAMA, Shinsuke TANAKA
  • Publication number: 20240095850
    Abstract: A non-transitory computer-readable storage medium storing therein an information management program for causing a computer to execute a process comprises: receiving property information indicating a reliability of a post uploaded on the Internet and a digital signature generated from the property information; and storing the property information, to which identification information of the post and the digital signature are added, in a storage.
    Type: Application
    Filed: June 12, 2023
    Publication date: March 21, 2024
    Applicants: Fujitsu Limited, KEIO UNIVERSITY
    Inventors: Takuya SAKAMOTO, Kazuaki NIMURA, Ryuichi MATSUKURA, Koji NAKAMICHI, Masayuki FUKUI, Shigeya SUZUKI, Osamu NAKAMURA, Ryosuke ABE
  • Publication number: 20240095592
    Abstract: A non-transitory computer-readable recording medium stores a machine learning program causing a computer to execute a process including: calculating an average of latent variables by inputting input data to an encoder; sampling a noise, based on a probability distribution of the noise, in which a probability is decreased as the probability approaches to a center of the probability distribution from a predetermined position in the probability distribution; calculating the latent variable by adding the noise to the average; calculating output data by inputting the calculated latent variable to a decoder; and training the encoder and the decoder in accordance with a loss function, the loss function including encoding information and an error between the input data and the output data, the encoding information being information of a probability distribution of the calculated latent variable and a prior distribution of the latent variable.
    Type: Application
    Filed: July 12, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventors: Masayuki HIROMOTO, Akira NAKAGAWA
  • Publication number: 20240095303
    Abstract: A computer-readable recording medium stores a matrix operation program for a computer. In a matrix operation in which an arithmetic circuit executes processing that combines at least two columns included in a matrix, obtains a product of each of rows of the combined columns, and calculates a sum of the product of each of the rows for all combinations of columns in the matrix, the program causes the computer to divide the matrix into blocks of a column group based on a data size of the column and storage capacity of a second storage to be accessed by the arithmetic circuit prior to accessing a first storage that stores information related to the matrix such that the column group to be combined is contained in the second storage, and to execute the calculation processing for each block of the divided column group.
    Type: Application
    Filed: June 20, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventors: Koji KURIHARA, Kentaro KAWAKAMI
  • Publication number: 20240095666
    Abstract: An information processing apparatus configured to: acquire spatial information related to a space in which a plurality of cargoes are disposed, the spatial information including a height of each of the plurality of subspaces, generate, according to the spatial information, a first constraint condition which indicates that no other cargo is present in one of the subspaces in a path from another of the subspaces where a cargo to be carried into or out is disposed to an entrance/exit of the space, a second constraint condition which indicates a number of cargoes that do not exceed the height of the subspace, and a third constraint condition which indicates a maximum carrying capacity of the cargoes, and determine, based on the constraint conditions, disposition of the plurality of cargoes in the space on condition that a cargo which exceeds the height of the subspace is not disposed.
    Type: Application
    Filed: June 16, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventor: Hideshi YAMAGUCHI
  • Publication number: 20240095550
    Abstract: A process includes obtaining, based on history information of transactions by each user, a first tendency that indicates a selection frequency of each attribute in the transactions by a plurality of users and a second tendency that indicates a selection frequency of each attribute in the transactions by a predetermined target user, specifying an attribute that includes a difference equal to or greater than a predetermined value in the selection frequency of each attribute by comparing the first tendency and the second tendency, and when generating data to be used for one of creating and updating a model that corresponds to a rule of an attribute presented to the target user by integrating the first tendency and the second tendency, performing integration by using the second tendency for the specified attribute.
    Type: Application
    Filed: July 3, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventor: Shunsuke ITO
  • Publication number: 20240095428
    Abstract: A computer-readable recording medium storing a specifying program for causing a computer to perform processing including: obtaining first information indicating an order of processing a plurality of objects; obtaining second information indicating a type being processable by each work device; obtaining a result of a simulation regarding processing of the work devices; counting a number N1 of objects having moved to another work device although processing is capable of being executed on an object to be distributed next, and counting a number N2 of objects being caused to wait since processing is executed on another object although processing is capable of being executed on the object to be distributed next, under conditions such that each object waits when the work device executes processing on another object; and specifying a work device to be increased or decreased, according to any of the number N1 or the number N2.
    Type: Application
    Filed: April 27, 2023
    Publication date: March 21, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Norihiko ITANI, Tsuyoshi NAGATO
  • Publication number: 20240095030
    Abstract: A non-transitory computer-readable storage medium storing an arithmetic operation program that causes at least one computer to execute a process, the process includes searching for first order information such that an evaluation value is updated as a generation progresses by using an evolutionary algorithm for a first individual that is a target of a combinatorial optimization process which includes an array search, the individual including the first order information; generating a first array by using the first order information; converting the first array into a QUBO format; and searching for a combination by using the converted first array.
    Type: Application
    Filed: May 18, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventor: Akito MARUO
  • Publication number: 20240098511
    Abstract: A non-transitory computer-readable recording medium stores a program for causing a computer to execute a process, the process includes obtaining a third matrix by changing at least one of a position of a target object already installed or a scale of the target object in a two-dimensional second matrix, obtaining three-dimensional second data by superimposing a two-dimensional first matrix and the third matrix, the first matrix being provided for each facility already installed and indicating a position and a scale thereof, and predicting a degree of influence of the target object by inputting the second data, a type of day of week, and time to a machine learning model trained with three-dimensional first data, a type of day of week, and time as input, and with a degree of influence of the target object as output, the first data being obtained by superimposing the first matrix and the second matrix.
    Type: Application
    Filed: July 6, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventors: Natsuki ISHIKAWA, Hayato DAN, Yoshihiro OKAWA, Masatoshi OGAWA
  • Publication number: 20240097447
    Abstract: A non-transitory computer-readable recording medium storing a power transaction program for causing a computer to execute processing of storing, in a blockchain, transaction information between a supply side and a demand side of power, the processing including: determining a supply amount by dividing a power resource on the supply side by aggregate period; determining a demand amount of a plurality of customers who demand the power resource on the demand side; determining a surplus power that is a difference between the supply amount and the demand amount; generating, by using zero-knowledge protocol, the transaction information based on the supply amount, the demand amount, to store generated transaction information in the blockchain.
    Type: Application
    Filed: June 16, 2023
    Publication date: March 21, 2024
    Applicant: Fujitsu Limited
    Inventor: Fumihiko KOZAKURA
  • Patent number: 11937324
    Abstract: Data transmitting/receiving apparatuses and methods and a communication system. The data transmitting method includes: in an inactive state, determining whether to maintain in the inactive state or enter an active state according to indication information of a network device or one or more parameters configured by the network device; and in the inactive state, transmitting data and/or a request message for entering the active state to the network device. Hence, data transmission may be performed in an appropriate state, without needing to restart connection at each time of data transmission; saved resources may be used for the data transmission, and time needed in performing identical data transmission may be reduced.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 19, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Meiyi Jia, Lianhai Wu, Yulong Shi, Hua Zhou
  • Publication number: 20240086439
    Abstract: A medium storing comprising instructions for: dividing a text into words; specifying an unknown word indicating a word other than a static word in a static dictionary among words in the text based on the static dictionary associating the static word with a vector; determining whether a unique word corresponding to the unknown word is included in a definition, using the definition defining a relationship between the unique word and a vector generated based on a condition that similar vectors are set for similar unique words; and when the unique word corresponding to the unknown word is included in the definition, assigning a vector corresponding to the unique word to the unknown word; and when the unique word corresponding to the unknown word is not included in the definition, assigning a vector to the unknown word using words arranged before and after the unknown word.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro KATAOKA, Yoshihide TOMIYAMA, Aya IWATA
  • Publication number: 20240086189
    Abstract: An information processing program that causes a computer to execute a process including: acquiring use information that is use information for a database that includes incompatibility information that indicates a rewrite method in which source code dependent on first software is made compatible with second software and registrant information that indicates a registrant of the incompatibility information, and indicates a user of the incompatibility information and a use result of the incompatibility information; identifying a type of the use result indicated by the use information; and calculating an evaluation value to be given to at least one of the user indicated by the use information and the registrant indicated by the registrant information according to the identified type based on evaluation reference information that indicates a correspondence relationship between a plurality of types of use results and a plurality of evaluation values.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: FUJITSU LIMITED
    Inventor: Masaki NISHIGAKI
  • Publication number: 20240085194
    Abstract: In an embodiment, a set of parameters associated with a vehicle routing problem is received. A set of decision variables and a set of constraints associated with an optimization problem are received. An optimization problem is constructed. The optimization problem is divided into a set of sub-problems. Each of the set of sub-problems corresponds to a subset of warehouses of a set of warehouses. An intermediate solution is determined for each of the set of sub-problems to determine a set of routes associated with the corresponding sub-problem of the set of sub-problems. The intermediate solution associated with each of the set of sub-problems is combined to determine a final solution of the optimization problem based on the received set of constraints. The determined final solution is indicative of the set of optimal routes to be assigned to the set of vehicles. The final solution is rendered on a display device.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Hayato USHIJIMA-MWESIGWA, Pouya SHATI, Indradeep GHOSH
  • Publication number: 20240086756
    Abstract: An information processing apparatus determines a combination of a first data qubit and a second data qubit that further reduces the energy represented by an energy equation. The energy equation includes first to third energy terms. The first energy term is used to identify the first data qubit on which a Z error has occurred. The second energy term is used to identify the second data qubit on which an X error has occurred. The third energy term reduces the energy as the number of data qubits each being a third data qubit on which both a Z error and an X error have simultaneously occurred increases. The information processing apparatus determines that a Y error has occurred on the third data qubit.
    Type: Application
    Filed: July 27, 2023
    Publication date: March 14, 2024
    Applicants: Fujitsu Limited, OSAKA UNIVERSITY
    Inventors: Jun FUJISAKI, Hirotaka OSHIMA, Keisuke FUJII
  • Publication number: 20240086705
    Abstract: A non-transitory computer-readable recording medium stores a machine learning program causing a computer to execute a process including: calculating an average and a variance of a latent variable by inputting input data to an encoder; sampling a noise based on a normal distribution of the variance; calculating the latent variable by adding the noise to the average; calculating output data by inputting the calculated latent variable to a decoder; and training the encoder and the decoder in accordance with a loss function, the loss function including a value and an error between the input data and the output data, the value being obtained by multiplying encoding information by a correction coefficient based on the noise, the encoding information being information of a probability distribution of the latent variable and a prior distribution of the latent variable.
    Type: Application
    Filed: June 29, 2023
    Publication date: March 14, 2024
    Applicant: Fujitsu Limited
    Inventors: Masayuki HIROMOTO, Akira NAKAGAWA
  • Publication number: 20240086764
    Abstract: A non-transitory computer-readable recording medium have stored therein a training data generation program causes a computer to execute a process including, identifying, a first plurality of pieces of training data having label of first value and a first attributes of second value respectively, a second plurality of pieces of training data having the label of the first value and the first attribute of a third values respectively, and a third plurality of pieces of training data having the label of a fourth value and the first attribute of the second value respectively, selecting first training data from among the second or the third plurality of pieces of the training data based on a specific probability, and generating third training data having the label of the first value and the first attribute of the second value based on the first plurality of pieces of training data and the first training data.
    Type: Application
    Filed: June 16, 2023
    Publication date: March 14, 2024
    Applicant: Fujitsu Limited
    Inventor: Ryosuke SONODA
  • Publication number: 20240086805
    Abstract: An information processing apparatus calculates, based on result data indicative of a result value for a first demand quantity which arises for a first period, a first profit obtained by optimizing an operation quantity according to the result value, calculates a first prediction value for the first demand quantity by using a trained prediction model, determines, based on a comparison between the first profit and a second profit obtained by optimizing the operation quantity according to a second prediction value obtained by correcting the first prediction value with a correction model, the correction model, and calculates a third prediction value for a second demand quantity which arises for a second period different from the first period by using the prediction model and the correction model and outputs plan data indicative of the operation quantity optimized according to the third prediction value.
    Type: Application
    Filed: June 19, 2023
    Publication date: March 14, 2024
    Applicant: Fujitsu Limited
    Inventor: Yoshinobu IIMURA
  • Publication number: 20240086438
    Abstract: A medium storing a program including: classifying vectors of first sentences in a file into each similar vector; generating an inverted index associating a vector of each first sentence with a position of the first sentence on the file; identifying a feature sentence from a second sentences included in a second sentences; specifying similar vectors being vectors similar to a vector of the feature sentence based on the inverted index; specifying, for each similar vector, first transition data indicating transition of vectors at positions before and after the similar vector based on the inverted index; and specifying, from pieces of first transition data obtained by performing the specifying of the first transition data on the similar vectors, transition data similar to second transition data indicating transition of vectors of sentences before and after the feature sentence, to output the transition data as a response of the search query.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro KATAOKA, Ryo MATSUMURA, Ryohei NAGAURA