Patents by Inventor Takahiro Yamamoto

Takahiro Yamamoto 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: 20210405120
    Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data includes a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.
    Type: Application
    Filed: September 8, 2021
    Publication date: December 30, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisaaki HATANO, Takahiro YAMAMOTO, Kohei MARUCHI, Kenichi FUJIWARA, Masatake SAKUMA
  • Publication number: 20210405890
    Abstract: The storage part receives an I/O request including the ID of software, information regarding a storage area to and from which the software performs input and output, and a token. The storage part checks the I/O request against the software ID, the information regarding the storage area, and the token received from an I/O control part so as to determine whether access to the storage part is allowed. Upon determination that the access to the storage part is allowed, the storage part processes the I/O request.
    Type: Application
    Filed: March 4, 2021
    Publication date: December 30, 2021
    Inventors: Tatsuya HIRAI, Takahiro YAMAMOTO, Hiroto EBARA, Masakuni AGETSUMA, Yoshinori OHIRA
  • Patent number: 11204709
    Abstract: Disclosed is a storage system having a plurality of storage nodes, each of the storage nodes including: a non-volatile storage apparatus that stores control information regarding a volume; a capacity controller that performs control associated with writing information to and reading information from the storage apparatus; and a migration controller migrates the volume, in which when the volume is migrated between the storage nodes, the capacity controller updates the control information in response to the migration of the volume performed by the migration controller.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 21, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Shintaro Ito, Takahiro Yamamoto, Hideo Saito
  • Publication number: 20210381391
    Abstract: The invention provides a CO2 turbine power generation system that can be easily prevented from reaching an overspeed condition. A CO2 turbine power generation system of an embodiment includes a CO2 medium shutoff valve installed in a medium flow path between a regenerative heat exchanger and a combustor. When load rejection is to be performed, the CO2 medium shutoff valve closes to shut off the supply of the medium from the regenerative heat exchanger to the combustor.
    Type: Application
    Filed: June 1, 2021
    Publication date: December 9, 2021
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Takahiro ONO, Takahiro YAMAMOTO, Koki NISHIMURA, Tomomi OKUYAMA, Tsuguhisa TASHIMA, Shogo IWAI
  • Patent number: 11174943
    Abstract: A seal structure includes a ring-shaped seal member. The seal member is disposed in a seal groove. The case includes a low-pressure lateral face in a cross section of the seal structure, the cross section being taken along an imaginary plane in parallel with a shaft axial direction of the shaft and passing through a center line of the shaft. The seal member includes a first protruding portion. The first protruding portion protrudes from a main portion having a bottom face in contact with the low-pressure lateral face, and has a shape such that the first protruding portion extends toward the shaft as the first protruding portion extends toward the low-pressure side. The first protruding portion includes a tip. The first protruding portion includes a contact region in contact with the shaft. The tip is closer to the low-pressure side than the contact region is.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 16, 2021
    Assignee: VALQUA, LTD.
    Inventors: Takahiro Yamamoto, Chao Jing, Mitsuru Minami, Akira Ueda, Yuki Noriduki
  • Patent number: 11169879
    Abstract: Provided is a storage system that performs inter-node movement of parity and reconfiguration of a stripe when a node configuration is changed. The storage system includes a plurality of nodes and a management unit, in which the nodes are targets for data write and read requests, form a stripe by a plurality of data stored in different nodes and parity generated based on the plurality of data, and store the parity of the stripe to which the data under the write request belongs in a node different from the plurality of nodes that store the plurality of data so as to perform redundancy; and the management unit transmits, to the node, an arrangement change request to perform the inter-node movement of the parity and the reconfiguration of the stripe when the node configuration is changed.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: November 9, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Yamamoto, Hiroto Ebara, Takeru Chiba, Masakuni Agetsuma
  • Publication number: 20210326219
    Abstract: In recovery processing, a distributed storage system 100 locks a storage area in which user data for recovery that is user data serving as data for recovery is stored in drives 405, and releases the lock after caching the user data for recovery in a memory 401 of any of computer nodes 101. Then, the distributed storage system 100 recovers recovery target data on basis of the user data for recovery cached in the memory 401. In write processing, the distributed storage system 100 updates the user data for recovery cached in the memory 401 in accordance with a write request and then writes the user data in accordance with the write request.
    Type: Application
    Filed: September 14, 2020
    Publication date: October 21, 2021
    Inventors: Takeshi ODA, Takahiro YAMAMOTO
  • Patent number: 11150846
    Abstract: A data set is constructed from a first given number of data elements configured from a plurality of data and redundant data corresponding to the plurality of data. The first given number of data elements are deployed in a distributed relationship into a first given number of first nodes. When an instruction to increase the number of data elements of the data set from the first given number by a second given number, the data set is reconstructed using, as new data elements, the first given number of data elements and a second given number of zero data. A controller deploys the data elements of the reconstructed data set in a distributed relationship into the first nodes and the second given number of second nodes while zero data or redundant data are deployed into the second nodes from among the data elements of the reconstructed data set.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 19, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Yamamoto, Hiroaki Akutsu
  • Patent number: 11147647
    Abstract: To reduce more load related to the correction of deformation of an observation image that is caused by an error between a plurality of imaging sections. A medical stereoscopic observation device includes: an acquisition section configured to acquire, from an imaging unit including a first imaging section configured to capture a left-eye image and a second imaging section configured to capture a right-eye image, correction data for correcting an error related to capturing of an image between the first imaging section and the second imaging section, the imaging unit being rotatably held by a support section; and a correction section configured to correct a difference of parallax between the left-eye image and the right-eye image on a basis of the correction data, using a position corresponding to a rotation axis of the imaging unit as a reference position.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: October 19, 2021
    Assignee: SONY OLYMPUS MRDICAL SOLUTIONS INC.
    Inventors: Masataka Kado, Tomonori Ishikawa, Gakuji Higuchi, Hiroshi Ushiroda, Takahiro Yamamoto, Masashige Kimura
  • Patent number: 11151045
    Abstract: Provided is a distributed storage system which can reduce a load on a network between storage apparatuses when an access request is received and improve responsiveness. In the distributed storage system, the storage device includes a data area and a cache area; a node becomes an owner node when receiving a transfer of charge of an LU from another node in a non-storage state where LU data is not stored in a data area; the processor of the owner node receives a read request for an LU that is in charge, obtains data of a target area based on data of the storage device of another node when the data of the target area is not stored in the data area or the cache area of the owner node, and transmits the data to a request source and stores it in a cache area.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: October 19, 2021
    Assignee: HITACHI, LTD.
    Inventors: Yoshinori Ohira, Masakuni Agetsuma, Takeru Chiba, Takahiro Yamamoto, Hiroto Ebara, Hideo Saito
  • Patent number: 11150829
    Abstract: A storage system and data control method capable of extending the service lifes of storage devices of the same type and with different properties and reducing operation management cost are proposed. The storage system includes: a first storage device; a second storage device with a smaller upper limit number of writes and a larger storage capacity per unit area than those of the first storage device; and a processor that allocates storage areas from the first storage device and the second storage device to a virtual volume to be provided to a host, wherein the processor relocates data which is stored in a storage area with higher write frequency from the host than a predetermined write threshold, from among the storage areas allocated from the second storage device to the virtual volume, from the storage area of the second storage device to a storage area of the first storage device.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: October 19, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Yamamoto, Kazuhisa Fujimoto, Hiroaki Akutsu
  • Publication number: 20210314482
    Abstract: A medical image acquisition system includes an imaging device and an image processing device. The imaging device includes: an imaging unit configured to receive light and convert the light into an electric signal so as to generate the imaging signal; an optical unit including a focus mechanism moving one or a plurality of lenses so as to adjust a focal point position, and configured to form an optical image on the imaging unit; a memory configured to store therein unique information of the imaging device; and an auto focus controller configured to totally control the imaging device. The image processing device includes an auto focus evaluation unit configured to perform focusing evaluation based on the imaging signal, and the auto focus controller controls driving of the focus mechanism by referring to the unique information in accordance with an evaluation result by the auto focus evaluation unit.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Applicant: Sony Olympus Medical Solutions Inc.
    Inventor: Takahiro Yamamoto
  • Patent number: 11137940
    Abstract: A capacity control module which manages a physical storage area provided by each of storage devices in a cluster by dividing the physical storage area into a physical storage area having a predetermined size, in a plurality of storage nodes configuring a storage system, and, a storage control module which receives an I/O request from a higher-level device are provided, two storage control modules, which are arranged in different storage nodes and configure a redundancy configuration, are managed as a storage control module pair, the capacity control module preferentially allocates each of the physical storage areas in the vicinity of an arrangement destination of each of the storage control modules configuring the storage control module pair, to the storage control module pair, and storage data is read from or is written on the physical storage area, according to a command applied from the storage control module.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 5, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Shintaro Ito, Yuko Matsui, Masakuni Agetsuma, Hideo Saito, Takeru Chiba, Takahiro Yamamoto
  • Publication number: 20210303178
    Abstract: Provided are: one or plural storage units including a plurality of physical storage devices (PDEVs); and a plurality of computers connected to the one or plural storage units via a communication network. Two or more computers execute storage control programs (hereinafter, control programs), respectively. Two or more control programs share a plurality of storage areas provided by the plurality of PDEVs and metadata regarding the plurality of storage areas. When the control program fails, another control program sharing the metadata accesses data stored in a storage area. When a PDEV fails, the control program restores data of the failed PDEV using redundant data stored in another PDEV that has not failed.
    Type: Application
    Filed: September 14, 2020
    Publication date: September 30, 2021
    Applicant: Hitachi, Ltd.
    Inventors: Yoshinori Ohira, Akira Yamamoto, Ryosuke Tatsumi, Takahiro Yamamoto, Masakuni Agetsuma
  • Publication number: 20210302211
    Abstract: It is possible to suppress overcorrection. A physical quantity detecting device includes: a physical quantity detecting sensor that detects a physical quantity of a measurement target fluid and outputs a detection signal; a compensation amount calculation unit that calculates, by using the detection signal, a lead compensation amount used in lead compensation for the detection signal; and a gain control unit that adjusts the lead compensation amount based on a deviation that is an amount of change in lead compensation amount over time.
    Type: Application
    Filed: February 13, 2019
    Publication date: September 30, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro YAMAMOTO, Tsutomu KONO, Takahiro MIKI, Yuki ISOYA
  • Patent number: 11131253
    Abstract: A control device for an engine 1 including cylinders, and configured to perform a reduced-cylinder operation by idling some of cylinders. The control device includes a hydraulic valve-stopping mechanism 14b which closes the intake and exhaust valves 41, 51 of the cylinders in response to establishment of the reduced-cylinder operation execution condition, a hydraulic variable valve timing mechanism 19 capable of changing a phase of the exhaust valve 51 of the engine 1, and an ECU 110 which controls the valve-stopping mechanism 14b and the hydraulic variable valve timing mechanism 19. In response to establishment of the reduced-cylinder operation execution condition, the ECU 110 allows the hydraulic variable valve timing mechanism 19 to execute the phase change to the exhaust valve 51, and subsequently allows the valve-stopping mechanism 14b to bring the intake and exhaust valves 41, 51 of the cylinders into closed state.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: September 28, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takahiro Yamamoto, Toshiaki Nishimoto, Takaya Okugawa, Takafumi Nishio
  • Patent number: 11122225
    Abstract: A medical image processing apparatus includes: a defective pixel specifier configured to specify a defective pixel in a captured image based on a pixel level of each pixel in the captured image; a setting unit configured to set a correction degree of a defect correction process of making a brightness of the defective pixel approach a brightness of a discrimination area including surrounding pixels positioned around the defective pixel; and a defect corrector configured to perform the defect correction process according to the correction degree. When a difference between the brightness of the defective pixel and the brightness of the discrimination area is divided into a first range and a second range in which the difference is larger than that in the first range, the setting unit sets a higher correction degree for the difference is in the second range than the first range.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: September 14, 2021
    Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.
    Inventors: Taihei Michihata, Takahiro Yamamoto
  • Patent number: 11112973
    Abstract: A computer system includes a host unit that issues a request of an I/O processing to a volume VOL, a local pool control unit that is in charge of management of a local pool based on a storage area of a drive of one node, and a global pool control unit that is in charge of management of a global pool based on a plurality of local pools, wherein the global pool control unit controls transmission of target data of the I/O processing performed by the host unit based on a commonality relationship among a first node that is formed with the host unit performing the I/O processing, a second node that is formed with the global pool control unit, and a third node that is formed with the local pool control unit managing the local pool.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: September 7, 2021
    Assignee: HITACHI, LTD.
    Inventors: Hiroto Ebara, Yoshinori Ohira, Hideo Saito, Masakuni Agetsuma, Takeru Chiba, Takahiro Yamamoto
  • Patent number: 11111840
    Abstract: When an engine rotation speed is lower than a reference rotation speed, first failure determination in which failure of a flow rate control valve is determined based on a pressure change of cooling water detected by a pressure sensor is executed, when a valve closing instruction to switch the flow rate control valve from an opened state to a closed state is output from a valve control device; and when an engine rotation speed is equal to or higher than the reference rotation speed, second failure determination in which failure of the flow rate control valve is determined based on a pressure change of cooling water detected by a pressure sensor is executed, when a valve opening instruction to switch the flow rate control valve from a closed state to an opened state is output from the valve control device.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: September 7, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Nobuhiko Yokoyama, Takafumi Nishio, Kuniaki Wada, Takahiro Yamamoto
  • Patent number: D932543
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 5, 2021
    Inventors: Takahiro Yamamoto, Ayaka Odachi, Kotaro Izumiya, Akihisa Shiozaki