Patents by Inventor Tsuyoshi Hasegawa

Tsuyoshi Hasegawa 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: 20240143221
    Abstract: A computer implemented method includes executing a read-ahead operation by reading data from a tape according to a read plan and storing said data in a ring buffer, determining whether the ring buffer is full, receiving a command indicating an area to be read according to the read plan, and, responsive to receiving the command, reading data from an area of the list of areas to be read corresponding to the command from the ring buffer. The method may further include executing additional read-ahead operations until the ring buffer is full. A computer program product and computer system corresponding to the method are also disclosed.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 2, 2024
    Inventors: Atsushi Abe, Tohru Hasegawa, Shinsuke Mitsuma, Hiroshi Itagaki, Tsuyoshi Miyamura, Noriko Yamamoto
  • Patent number: 11971853
    Abstract: An approach for deleting a file from a primary file system. The approach deletes a directory entry, associated with a file, from an in-memory index associated with a secondary file system. The approach updates an index cache associated with a secondary file system, based on the in-memory index. The approach updates a dirty flag, associated with the secondary file system, to a value of TRUE.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 30, 2024
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Noriko Yamamoto, Shinsuke Mitsuma
  • Patent number: 11954353
    Abstract: In an approach to improve magnetic tape file systems through tape-to-tape copying between nodes on a Linear Tape File System using a cluster-wide named pipe. Embodiments transfer data between a first node and a second node. Additionally, both the first node and the second node implement a parallel shared-disk file system through a data path for node data reading and writing from a shared-disk and to the shared-disk. Further, to transfer data between the first node and the second node, embodiments, write, by the first node, the data for tape-to-tape copy from a first tape drive to the shared-disk, and write, by the second node, the data written from the shared-disk to a second tape drive.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: April 9, 2024
    Assignee: International Business Machines Corporation
    Inventors: Atsushi Abe, Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Noriko Yamamoto
  • Publication number: 20240111721
    Abstract: An approach for deleting a file from a primary file system. The approach deletes a directory entry, associated with a file, from an in-memory index associated with a secondary file system. The approach updates an index cache associated with a secondary file system, based on the in-memory index. The approach updates a dirty flag, associated with the secondary file system, to a value of TRUE.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Noriko Yamamoto, Shinsuke Mitsuma
  • Publication number: 20240094949
    Abstract: A computer implemented method includes receiving a list of areas on a subject tape to be read, wherein each area of the list of areas is indicated by a first record number and a last record number corresponding to the area, identifying parameters of a tape drive configured to read the subject tape, wherein the identified parameters of the tape drive contribute to a speed with which the tape drive can read the list of areas, creating a directed graph of the areas on the subject tape based on the identified parameters, wherein the directed graph indicates how long the tape drive will take to read the areas on the subject tape, and determining a fastest reading order of the areas on the subject tape, based, at least in part, on the directed graph and the identified parameters. A computer program product and computer system are also disclosed.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Atsushi Abe, Tohru Hasegawa, Shinsuke Mitsuma, Hiroshi Itagaki, Noriko Yamamoto, Tsuyoshi Miyamura, Lucas Correia Villa Real
  • Patent number: 11934699
    Abstract: A computer-implemented method for unoptimized tape drive read detection is disclosed. The computer-implemented includes determining whether a read order of a trio of related files is consistent with an order in which the trio of related files are stored on a magnetic tape media. The computer-implemented method further includes generating an unoptimized tape drive read warning in response to determining that the read order of the trio of related files is inconsistent with the order in which the trio of related files are stored on the magnetic tape media.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: March 19, 2024
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Noriko Yamamoto
  • Patent number: 11914883
    Abstract: A copy operation is received. The copy operation is of one or more files stored on a linear tape file system. The copy operation is performed in a plurality of units of extents of the one or more files.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: February 27, 2024
    Assignee: International Business Machines Corporation
    Inventors: Shinsuke Mitsuma, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Noriko Yamamoto, Atsushi Abe
  • Patent number: 11654223
    Abstract: An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 23, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Ryohei Katsuki, Tsuyoshi Hasegawa, Yuuki Hara, Tomoaki Hashimoto
  • Patent number: 11648340
    Abstract: An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 16, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Patent number: 11617819
    Abstract: An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: April 4, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Publication number: 20210084751
    Abstract: Embodiments of a printed wiring board configured to inhibit increases in electrical resistance between a ground circuit and a reinforcement member are disclosed. The printed wiring board has a substrate film with a base film and a printed circuit, which printed circuit includes a ground circuit; an adhesive layer formed on the substrate film; and a conductive reinforcement member formed on the adhesive layer. The adhesive layer includes conductive particles. One or more layers of low-melting-point metal is or are provided between the adhesive layer and the substrate film; between the adhesive layer and the reinforcement member; and/or around the conductive particles.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Yuusuke HARUNA, Takahiko KATSUKI, Tsuyoshi HASEGAWA, Hiroshi TAJIMA
  • Patent number: 10638598
    Abstract: The present invention aims to provide a ground member that can be mounted on any position, wherein misalignment is less likely to occur between conductive filler particles of the ground member and a shielding layer of a shielding film when a shielded printed wiring board including the ground member is repeatedly heated and cooled to mount components thereon. The ground member of the present invention includes: a conductive external connection member having a first main surface and a second main surface opposite to the first main surface; conductive filler particles disposed adjacent to the first main surface; and an adhesive resin for fixing the conductive filler particles to the first main surface, wherein each conductive filler particle includes a low-melting-point metal.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 28, 2020
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Yuusuke Haruna, Takahiko Katsuki, Tsuyoshi Hasegawa, Hiroshi Tajima
  • Publication number: 20190373716
    Abstract: The present invention aims to provide a printed wiring board in which an increase in electrical resistance between a ground circuit and a reinforcement member of the printed wiring board is inhibited.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 5, 2019
    Inventors: Yuusuke HARUNA, Takahiko KATSUKI, Tsuyoshi HASEGAWA, Hiroshi TAJIMA
  • Publication number: 20190351128
    Abstract: An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Patent number: 10478105
    Abstract: An extracorporeal blood circulation management device having an oxygenator accurately determines oxygen consumption by the target person and oxygen delivery by the oxygenator. Oxygenation-related parameter values in the blood are determined at regular intervals. An in-body passing time (a cycle time for a particular volume of blood to pass from input sensors to output sensors) is determined. Parameter values separated by the in-body passing time are selected as comparison targets to evaluate oxygenation consumption of the target person. An oxygenator unit passing time is determined. Parameter values separated by the oxygenator unit passing time are selected as comparison targets to evaluate oxygenation delivery of the oxygenation unit.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 19, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomoki Utsugida, Tomoaki Hashimoto, Tsuyoshi Hasegawa
  • Publication number: 20190261503
    Abstract: The present invention aims to provide a ground member that can be mounted on any position, wherein misalignment is less likely to occur between conductive filler particles of the ground member and a shielding layer of a shielding film when a shielded printed wiring board including the ground member is repeatedly heated and cooled to mount components thereon. The ground member of the present invention includes: a conductive external connection member having a first main surface and a second main surface opposite to the first main surface; conductive filler particles disposed adjacent to the first main surface; and an adhesive resin for fixing the conductive filler particles to the first main surface, wherein each conductive filler particle includes a low-melting-point metal.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 22, 2019
    Inventors: Yuusuke HARUNA, Takahiko KATSUKI, Tsuyoshi HASEGAWA, Hiroshi TAJIMA
  • Publication number: 20190140781
    Abstract: A base station which switches an uplink signal and a downlink signal in a time-division manner to perform communication with a terminal, includes a generator, a transmitter, a first receiver, and a second receiver. The generator multiplexes a plurality of transmission signals assigned to respective pieces of wireless resource with different time lengths to generate a wireless signal. The transmitter transmits the wireless signal to the terminal at transmission timing of the downlink signal in a first frequency band. The first receiver receives the uplink signal transmitted from the terminal at transmission timing of the uplink signal in the first frequency band. The second receiver receives a response signal corresponding to at least one transmission signal, out of response signals indicating whether the respective transmission signals included in the wireless signal have properly been received in the terminal, in a second frequency band different from the first frequency band.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Tsuyoshi Hasegawa, Tsuyoshi Shimomura
  • Publication number: 20190001045
    Abstract: An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.
    Type: Application
    Filed: August 27, 2018
    Publication date: January 3, 2019
    Inventors: Ryohei Katsuki, Tsuyoshi Hasegawa, Yuuki Hara, Tomoaki Hashimoto
  • Publication number: 20180369465
    Abstract: An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 27, 2018
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Publication number: 20180062823
    Abstract: A base station includes a transmitter configured to transmit a downlink signal to a terminal device in a first frequency band, a receiver configured to receive an uplink signal from the terminal device in a second frequency band narrower than the first frequency band, at least a part of the second frequency band being included in the first frequency band, and a canceller circuit configured to execute a suppression process of a self-interference in which the downlink signal transmitted from the transmitter reaches the receiver and interferers with the uplink signal, wherein the canceller circuit executes the suppression process by limiting to a third frequency band including the second frequency band and not including at least a part of the first frequency band.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 1, 2018
    Applicant: FUJITSU LIMITED
    Inventor: Tsuyoshi HASEGAWA