Patents by Inventor Akifumi Suzuki

Akifumi Suzuki 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: 20230021108
    Abstract: A file storage include: a processor that receives a write request for a file from an application, writes data of the file to a storage unit, then compresses the data of the written file, and writes the compressed data to the storage unit. The processor determines a compression algorithm to be used for the compression according to an amount of data, which is written during a predetermined time, of one or more written files.
    Type: Application
    Filed: March 14, 2022
    Publication date: January 19, 2023
    Inventors: Akira YAMAMOTO, Akifumi SUZUKI
  • Publication number: 20220392117
    Abstract: Both of a high compression ratio and a high processing speed are achievable. In a data compression and decompression system that includes a parallel processing device performing a plurality of processes in parallel, the parallel processing device divides original data into a plurality of data by a predetermined unit. The parallel processing device performs coding processes on the plurality of data in parallel using a predetermined model to create a plurality of coded data. The parallel processing device creates compressed data of the original data from the plurality of coded data.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Inventors: Hiroaki AKUTSU, Takahiro NARUKO, Akifumi SUZUKI
  • Publication number: 20220382459
    Abstract: To generate an optimum compressor irrespective of the number of dimensions and a format of a multidimensional dataset. A storage system refers to dimension setting information, which is information representing an attribute for each of data dimensions of the multidimensional dataset, and generates a compressor based on the dimension setting information.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 1, 2022
    Inventors: Hiroaki AKUTSU, Takahiro NARUKO, Akifumi SUZUKI
  • Publication number: 20220374156
    Abstract: Provided is a data processing system which includes a processor and a storage device, and inputs/outputs data using a learned compander that compresses and expands data, wherein the data processing system comprises an estimation unit which uses learning data and estimates a region of interest to a data model, and a learning unit which causes the compander to learn according to an evaluation function in which each region was weighted based on the region of interest, and a result of the compander compressing and expanding the learning data.
    Type: Application
    Filed: March 4, 2021
    Publication date: November 24, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Takahiro Naruko, Hiroaki Akutsu, Akifumi Suzuki, Katsuto Sato
  • Publication number: 20220365699
    Abstract: An object of the invention is to optimize a storage cost for data. There is provided a storage system including a storage device, a memory, and a processor configured to control input and output of data to and from the storage device. The processor monitors a storage amount that is at least one of a write amount (a total amount of data received as a write target) and a physical use amount (a total amount of data physically stored in the storage device), and a read amount (a total amount of data that is read), and calculates a fee as a storage cost that is a cost related to use of the storage device in a target period, based on a storage amount and a read amount in the target period in accordance with a monitoring result.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 17, 2022
    Inventors: Hiroaki AKUTSU, Takahiro NARUKO, Akifumi SUZUKI
  • Patent number: 11457512
    Abstract: A cord-shaped heater 1, having: a conductive wires 5a; an inner-layer covering 7 formed on the outer periphery of the conductive wires 5a; and an outer-layer covering 9 formed on the outer periphery of the inner-layer covering 7, wherein the melting temperature of the inner-layer covering 7 is higher than the melting temperature of the outer-layer covering 9, the inner-layer covering 7 and the outer-layer covering 9 are made of same type of polymer material, and the inner-layer covering 7 and the outer-layer covering 9 are adhered to each other. The cord-shaped heater 1, wherein the conductive wire 5a includes a plurality of conductive wires, and the conductive wires 5a is covered with an insulating film 5b. A sheet-shaped heater, wherein the cord-shaped heater is arranged on a substrate, the substrate has a gap, at least a part of the outer-layer covering is penetrated into the gap of the substrate, and the inner-layer covering is not penetrated into the gap of the substrate.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 27, 2022
    Assignee: KURABE INDUSTRIAL CO., LTD.
    Inventors: Akifumi Wada, Tadao Suzuki
  • Patent number: 11435924
    Abstract: An object of the invention is to optimize a storage cost for data. There is provided a storage system including a storage device, a memory, and a processor configured to control input and output of data to and from the storage device. The processor monitors a storage amount that is at least one of a write amount (a total amount of data received as a write target) and a physical use amount (a total amount of data physically stored in the storage device), and a read amount (a total amount of data that is read), and calculates a fee as a storage cost that is a cost related to use of the storage device in a target period, based on a storage amount and a read amount in the target period in accordance with a monitoring result.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 6, 2022
    Assignee: HITACHI, LTD.
    Inventors: Hiroaki Akutsu, Takahiro Naruko, Akifumi Suzuki
  • Publication number: 20220269652
    Abstract: The computation load of computation using a neural network can be lowered. A computation apparatus has a prediction device, an encoder, and a decoder, and encodes and decodes data by using a probability density distribution. Of a learning process and a compression process, at least the compression process can be executed. By performing learning by using a neural network created by the learning process, a probability distribution table that causes a parameter and a symbol value probability distribution to correspond to each other can be used. In the compression process, the prediction device calculates the parameter from input data, and the encoder compresses the input data by using the symbol value probability distribution on the basis of the calculated parameter and the probability distribution table.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 25, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Akifumi Suzuki, Hiroaki Akutsu
  • Publication number: 20220129208
    Abstract: To provide a data compression/decompression system that can appropriately decompress compressed data. A first computer generates first identification information that can identify a first execution environment; and stores the first identification information on a storage device in association with compressed data of data. A second computer generates second identification information that can identify a second execution environment; and determines whether or not the first identification information, and the second identification information match.
    Type: Application
    Filed: September 21, 2021
    Publication date: April 28, 2022
    Inventors: Katsuto SATO, Hiroaki AKUTSU, Akifumi SUZUKI, Takahiro NARUKO
  • Patent number: 11256422
    Abstract: Provided is a storage system that can store various types of and large amounts of sensor data while accurately compressing the sensor data without wasting storage resources. The storage system includes: a storage that records sensor data output from a plurality of sensors; a processor that controls recording of sensor data in the storage; and a memory that records parameters of the plurality of sensors. The processor reads parameters assigned to the sensors that output the sensor data from the memory, normalizes the sensor data based on the parameters, compresses the normalized sensor data, and records the compressed sensor data in the storage.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: February 22, 2022
    Assignee: HITACHI, LTD.
    Inventors: Akifumi Suzuki, Hiroaki Akutsu, Takahiro Naruko
  • Patent number: 11216336
    Abstract: It is assumed that at least one of the plurality of nonvolatile semiconductor memory devices is a nonvolatile semiconductor memory device (hereinafter, referred to as a first memory device) in a low power consumption state in which error check processing and refresh processing cannot be performed. A storage apparatus releases a low power consumption state of a first memory device at a timing according to a lapsed time after the first memory device is in the low power consumption state and an estimated ambient temperature of the first memory device at the lapsed time. When the low power consumption state is released, the first memory device executes the error check processing and the refresh processing.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 4, 2022
    Assignee: HITACHI, LTD.
    Inventors: Nagamasa Mizushima, Akifumi Suzuki, Hideyuki Koseki
  • Publication number: 20210279130
    Abstract: t is assumed that at least one of the plurality of nonvolatile semiconductor memory devices is a nonvolatile semiconductor memory device (hereinafter, referred to as a first memory device) in a low power consumption state in which error check processing and refresh processing cannot be performed. A storage apparatus releases a low power consumption state of a first memory device at a timing according to a lapsed time after the first memory device is in the low power consumption state and an estimated ambient temperature of the first memory device at the lapsed time. When the low power consumption state is released, the first memory device executes the error check processing and the refresh processing.
    Type: Application
    Filed: May 30, 2017
    Publication date: September 9, 2021
    Inventors: Nagamasa MIZUSHIMA, Akifumi SUZUKI, Hideyuki KOSEKI
  • Publication number: 20210165764
    Abstract: To reduce a calculation processing load as a whole while realizing a small amount of data loss for at least one of compression and decompression. For each of a plurality of pieces of data, a storage system determines a compression operation scale of the data based on a feature of the data, executes a lossy compression operation according to the determined compression operation scale to covert the data into encoded data, and stores the encoded data or compressed data thereof into a storage device.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Akifumi SUZUKI, Takahiro NARUKO, Hiroaki AKUTSU
  • Publication number: 20210151331
    Abstract: A setting method of a protective component includes a resin supply step of supplying a thermoplastic resin to a flat support surface of a support table, and a protective component forming step of shaping the thermoplastic resin into a sheet shape through pressing and spreading the thermoplastic resin along the support surface while heating and softening the thermoplastic resin to form a protective component of the thermoplastic resin in the sheet shape on the support surface. The setting method includes also a protective component bonding step of bringing a front surface that is one surface of the workpiece into tight contact with one surface of the protective component in the sheet shape and heating the protective component in tight contact to bond the protective component to the workpiece, and a post-bonding cooling step of cooling the protective component heated in the protective component bonding step.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 20, 2021
    Inventors: Norihisa ARIFUKU, Tomohiro KANEKO, Akifumi SUZUKI, Masamitsu KIMURA
  • Patent number: 10908988
    Abstract: A storage apparatus includes: a controller; and a plurality of storage drives, wherein the controller issues a read command for specifying a value associated with an error correction mode to a first storage drive of the plurality of storage drives, the first storage drive selects the error correction mode associated with the value specified by the read command from a plurality of error correction modes, the plurality of error correction modes include a first error correction mode and a second error correction mode with a higher correcting capability and a longer maximum delay time than those of the first error correction mode, and the first storage drive executes a read of data from a storage medium in the selected error correction mode.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 2, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Date, Hideyuki Koseki, Akifumi Suzuki, Masahiro Tsuruya
  • Patent number: 10901401
    Abstract: Provided are a correlation determination unit to set, as a first apparatus, one apparatus among a plurality of apparatuses, set, as a first quality value, a quality value indicating a quality of an intermediate product processed by the first apparatus, set, as a second apparatus, an apparatus among the plurality of apparatuses that belongs to a process prior to the process to which the first apparatus belongs, set, as a second quality value, a quality value of an intermediate product processed by the second apparatus and determine whether correlation exists between the first quality value and the second quality value; a set determination unit to determine, using a quality standard value BQ indicating a standard of quality of the intermediate product, whether the first apparatus and the second apparatus are a set of apparatuses for which a first error between the first quality value and the quality standard value BQ and a second error between the second quality value and the quality standard value BQ cancel ea
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: January 26, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mitsuteru Shiba, Akifumi Suzuki
  • Patent number: 10896700
    Abstract: A system including a first storage drive and a superior device superior to the first storage drive, wherein the superior device specifies a first allowable environmental temperature that makes the remaining lifetime of the first storage drive longer than the remaining operation schedule period of the first storage drive, and controls an environmental temperature adjusting device that adjusts the environmental temperature of the first storage drive on the basis of the first allowable environmental temperature.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 19, 2021
    Assignee: HITACHI, LTD.
    Inventors: Masahiro Tsuruya, Masahiro Arai, Akifumi Suzuki, Shimpei Nomura
  • Patent number: 10884630
    Abstract: A storage system includes a controller and a nonvolatile memory drive, in which the controller transmits a write request that designates a volume identifier of a volume to be provided to a host, to the nonvolatile memory drive; the nonvolatile memory drive exclusively allocates a free block selected from a plurality of blocks to the volume identifier; write data of the write request is written to the free block; when the write data is update write data, an area that stores data to be updated is changed to an invalid data area; and after valid data of a block including the invalid data area is migrated to another block, all data of the block including the invalid data area is erased.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: January 5, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Koji Hosogi, Naoya Okada, Akifumi Suzuki, Hideyuki Koseki, Masahiro Tsuruya
  • Publication number: 20200394256
    Abstract: A storage system that performs irreversible compression on time-series data using a compressor/decompressor based on machine learning calculates a statistical amount value of each of one or more kinds of statistical amounts based on one or more parameters in relation to original data (time-series data input to a compressor/decompressor) and calculates a statistical amount value of each of the one or more kinds of statistical amounts based on the one or more kinds of parameters in relation to decompressed data (time-series data output from the compressor/decompressor) corresponding to the original data. The machine learning of the compressor/decompressor is performed based on the statistical amount value calculated for each of the one or more kinds of statistical amounts in relation to the original data and the statistical amount value calculated for each of the one or more kinds of statistical amounts in relation to the decompressed data.
    Type: Application
    Filed: March 18, 2020
    Publication date: December 17, 2020
    Inventors: Takahiro NARUKO, Hiroaki AKUTSU, Akifumi SUZUKI
  • Patent number: 10860577
    Abstract: An intermediate device is disposed between a host and a search target. Search requests of m-multiplicity (requests involving a data transfer amount that is unknown to the host) for at least one among n-processes (n is an integer equal to or more than 1) to be executed by the host are issued as requests from the host to the intermediate device. A temporary area associated with the search requests is allocated in the host. For each of the search requests, the intermediate device recognizes a hit data volume in accordance with the search request within a search scope. For each of the search, the hit data is written in an area of the temporary area that corresponds to a write destination address. The write destination address is updated for each of the search requests on the basis of the recognized hit data volume.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: December 8, 2020
    Assignee: HITACHI, LTD.
    Inventors: Koji Hosogi, Akifumi Suzuki, Kazuyoshi Serizawa, Akira Yamamoto