Patents by Inventor Tohru Hasegawa

Tohru 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).

  • Patent number: 11175843
    Abstract: A linear tape file system (LTFS) maintains a series of indexes, and an incremental change dataset, that records incremental changes that have taken place in each new index over the previous one, as each new index of the series is created. Upon receiving a command to roll back the file system from a current generation to a target previous generation, a generation control module applies information in the incremental change dataset to the current index. In this way, the current index is restored, at least functionally, to the state it was in when the target generation was created, thereby effectuating the rollback of the file system to the target generation.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tsuyoshi Miyamura, Tohru Hasegawa, Hiroshi Itagaki, Noriko Yamamoto, Shinsuke Mitsuma
  • Patent number: 11176964
    Abstract: A method for indexing a tape for unmounting from a tape drive is discussed. The method can determine that an update has been made to the tape since it was last mounted. The method can identify a tape head position with respect to the tape, the tape including a data partition and an index partition. The method can identify first position and a second position on the tape. The method can determine first distance, a length of tape between first position and tape head position. The method can determine second distance, a length of tape between first position and second position. The method can determine that first distance is less than second distance. The method can reposition the tape to a primary section and write the metadata index. The method can reposition tape to the second position write a data index beginning at the second position of the data partition.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: November 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Hiroshi Itagaki, Noriko Yamamoto, Sosuke Matsui
  • Patent number: 11176332
    Abstract: Time dependent media (TDM) content is received, and text features and non-text features are extracted from the TDM content. The TDM content is split into two or more documents. A document, which includes non-text features from the extracted non-text features, is selected. Non-text features in the document are compared to context patterns. When a context pattern matches a non-text feature in the document, a context element linked to the context pattern is linked to the non-text feature as well. The TDM content is modified based on the context element.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Shunsuke Ishikawa, Yasuyuki Tominaga, Hiroaki Uetsuki, Asako Ono, Tohru Hasegawa, Issei Yoshida, Kenta Watanabe
  • Patent number: 11163500
    Abstract: Provided is a method for writing and deleting files on a tape medium and a cache storage device. The method includes receiving a command to write one or more files of a directory to a tape medium. The method further includes identifying a cache limit associated with the tape medium. The method further comprises determining whether the amount of data of the directory that is already on the cache storage device exceeds the cache limit. In response to the amount of data not exceeding the cache limit, the method includes writing data of the one or more files to the cache storage device and the tape medium in parallel.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: November 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Noriko Yamamoto, Shinsuke Mitsuma
  • Patent number: 11165855
    Abstract: A networked computer system distributes content that is to be added to receipts by receipt issuing devices. The system includes a central server, first and second store servers communicating with the central server over a first network, first receipt issuing devices communicating with the first store server over a first local network, and second receipt issuing devices communicating with the second store server over a second local network. A first control plane is implemented in the central server to control whether or not the content is to be distributed to the first store server and whether or not the content is to be distributed to the second store server. A second control plane is implemented in the first and second store servers to control whether or not the content is to be distributed to the first and second receipt issuing devices, respectively.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 2, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Keiichi Hasegawa, Naoki Nishiyama, Yasuhiro Arai, Tohru Okada
  • Patent number: 11152018
    Abstract: A computer-implemented method for indexing a tape for unmounting from a tape drive. The computer-implemented method includes: receiving a request to unmount the tape from the tape drive, wherein the tape includes an index partition and a data partition, determining that an update to the tape is not reflected in any data index written in the data partition, appending a new data index at the end of the last written data file in the data partition, wherein the new data index includes information associated with the update to the tape, unthreading the tape from the tape drive, wherein unthreading the tape from the tape drive is performed at low tension writing a metadata index to an ancillary storage device, wherein the metadata index includes information associated with the update to the tape.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: October 19, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Tsuyoshi Miyamura, Shinsuke Mitsuma, Hiroshi Itagaki, Noriko Yamamoto, Sosuke Matsui
  • Patent number: 11151321
    Abstract: A method, a structure, and a computer system for resolving an anaphora. The exemplary embodiments may include extracting individual context data from an individual expression and determining whether the individual expression includes an anaphora representation based on the individual context data. The exemplary embodiments may further include, based on determining that the individual expression includes the anaphora representation, extracting anaphora context data and identifying an object of one or more objects to which the anaphora representation refers based on comparing the individual context data and the anaphora context data to data detailing the one or more objects.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: October 19, 2021
    Assignee: International Business Machines Corporation
    Inventors: Shunsuke Ishikawa, Yasuyuki Tominaga, Hiroaki Uetsuki, Asako Ono, Tohru Hasegawa, Kenta Watanabe
  • Publication number: 20210303194
    Abstract: Deep learning applications access modified files stored in high speed storage. The modified files are custom formatted for use by deep learning applications to minimize file size. Parent files from which the modified files are made are stored in low speed storage as files having the original characteristics of the parent files. Requesters identified as deep learning applications are provided access to the modified files in high speed storage. Requesting applications not identified as deep learning applications receive the parent files via conventional processing from low speed storage.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 30, 2021
    Inventors: Sosuke Matsui, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Shinsuke Mitsuma, Noriko Yamamoto
  • Patent number: 11132332
    Abstract: A method includes setting a maximum total size of data saved in a snapshot area, creating a snapshot of a file system, including reference to a plurality of logical volumes, saving at least a part of the plurality of logical volumes in the snapshot area on condition that it does not exceed the maximum total size of data saved in the snapshot area, and executing copy-on-write processing in response to a writing request for data in the file system, the data not being saved in the snapshot area.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 28, 2021
    Assignee: International Business Machines Corporation
    Inventors: Sosuke Matsui, Tohru Hasegawa, Noriko Yamamoto, Shinsuke Mitsuma, Hiroshi Itagaki, Tsuyoshi Miyamura
  • Publication number: 20210286772
    Abstract: Described are techniques for a tape unmounting protocol. The techniques include selecting a tape for unmounting from a plurality of tape drives, where the tape for unmounting includes a remaining capacity below a first threshold and a number of migrated files below a second threshold. The techniques further include unmounting the tape for unmounting from a tape drive.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Inventors: Tohru Hasegawa, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui
  • Publication number: 20210224344
    Abstract: Provided are techniques for performing a search based on position information. A search request that provides location information for a region of a screen image is received. A selection of a type indicator is received, where the type indicator indicates one of a text item and an image. In response to the type indicator indicating the text item, one or more of the text item and a date and time are received. A search is performed using the location information and the one or more of the text item and the date and time to identify one or more screen image identifiers of one or more corresponding screen images of a plurality of screen images. The one or more screen image identifiers are used to retrieve the one or more corresponding screen images. The one or more corresponding screen images are displayed as search results.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 22, 2021
    Inventors: Kenta WATANABE, Shunsuke ISHIKAWA, Asako ONO, Hiroaki UETSUKI, Yasuyuki TOMINAGA, Tohru HASEGAWA
  • Publication number: 20210216192
    Abstract: A computer-implemented method for a user interface paging operation includes: generating a pagination design pattern rendered on a web page as a plurality of virtual buttons displayed on a display screen of a device, wherein each virtual button is mapped to actions related to graphical elements of the pagination design pattern; moving the series of virtual buttons about at least a portion of the periphery of the display screen of the device; locating the display of the plurality of virtual buttons to positions within a periphery of the display screen of the device; subsequent to locating the display of the plurality of virtual buttons to positions within the periphery of the display screen of the device, receiving user input specifying selection of a first virtual button of the plurality of virtual buttons; and responsive to receipt of the user input: performing the action mapped to the first virtual button.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 15, 2021
    Inventors: Asako Ono, Tohru Hasegawa, Hiroaki Uetsuki, Shunsuke Ishikawa, Kenta Watanabe, Yasuyuki Tominaga, Issei Yoshida
  • Patent number: 11042508
    Abstract: Managing metadata added to a file, a directory, or a symbolic link is provided. One or more pieces of metadata of a movement target are obtained. The movement target is at least one of a file, a directory, and a symbolic link. The movement target is to be moved from one file system to another file system within a plurality of file systems. Whether the one or more pieces of metadata are migratable to the other file system is determined based, at least in part, on metadata stored in the other file system. The one or more pieces of metadata are processed by (i) migrating a first piece of metadata that is determined to be migratable to the other file system and (ii) leaving a second piece of metadata in the one file system, wherein the second piece of metadata is determined to be non-migratable.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: June 22, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Masayuki Iwanaga, Yutaka Oishi
  • Patent number: 11042329
    Abstract: A computer-implemented method, a computer program product, and a computer system for reordering a sequence of files based on compression rates in data transfer. A host determines predicted compression rates of first files that are to be saved onto a first tape, based on a relationship between compression rates and file attributes of second files that have been saved on a second tape. The host reorders a sequence of the first files stored in host cache storage and generates a new sequence of transferring the first files from the host cache storage to the tape drive hosting the first tape, based on the predicted compression rates of the first files. The host transfers the first files to the tape drive hosting the first tape and writes the first files to the first tape, according to the new sequence.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 22, 2021
    Assignee: International Business Machines Corporation
    Inventors: Noriko Yamamoto, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Shinsuke Mitsuma
  • Patent number: 11037598
    Abstract: A computer-implemented method, according to one embodiment, includes: receiving, from a tape drive, a first error location on a magnetic tape where a first error occurred, in addition to determining one or more areas on the magnetic tape to be examined based on the first error location. Independent of a read and/or write operation, the tape drive is instructed to induce relative motion between a tape head and the magnetic tape such that the tape head is positioned adjacent to each of the respective one or more areas in turn. Moreover, each of the one or more areas having a respective number of measured servo errors which exceeds a threshold value is identified as a damaged area of the magnetic tape.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 15, 2021
    Assignee: International Business Machines Corporation
    Inventors: Noriko Yamamoto, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Sosuke Matsui, Shinsuke Mitsuma
  • Publication number: 20210174022
    Abstract: A method, a structure, and a computer system for resolving an anaphora. The exemplary embodiments may include extracting individual context data from an individual expression and determining whether the individual expression includes an anaphora representation based on the individual context data. The exemplary embodiments may further include, based on determining that the individual expression includes the anaphora representation, extracting anaphora context data and identifying an object of one or more objects to which the anaphora representation refers based on comparing the individual context data and the anaphora context data to data detailing the one or more objects.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 10, 2021
    Inventors: Shunsuke ISHIKAWA, Yasuyuki TOMINAGA, Hiroaki UETSUKI, Asako ONO, Tohru HASEGAWA, Kenta WATANABE
  • Patent number: 11031041
    Abstract: A computer program product, according to one embodiment, includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and/or executable by a processor to cause the processor to: determine, by the processor, a first error location on a magnetic tape where a first error occurred. One or more areas on the magnetic tape to be examined are also determined, by the processor, based on the first error location. Independent of a read and/or write operation, relative motion between a tape head and the magnetic tape is induced by the processor, such that the tape head is positioned adjacent to each of the one or more areas in turn. Moreover, each of the one or more areas having a respective number of measured servo errors which exceeds a threshold value are identified, by the processor, as a damaged area of the magnetic tape.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 8, 2021
    Assignee: International Business Machines Corporation
    Inventors: Noriko Yamamoto, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Sosuke Matsui, Shinsuke Mitsuma
  • Publication number: 20210165834
    Abstract: Embodiments are disclosed for a method for ordering search results. The method includes identifying a plurality of archived search results generated by a keyword search. The method also includes searching a plurality of indices of a plurality of corresponding tape libraries comprising a plurality of tapes storing the archived search results. The method additionally includes determining a plurality of estimated access times corresponding to the archived search results based on the indices. Further, the method includes sorting the archived search results based on the estimated access times to create a time-based order.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Inventors: Tohru Hasegawa, HIROAKI UETSUKI, SHUNSUKE ISHIKAWA, YASUYUKI TOMINAGA, KENTA WATANABE, Asako Ono
  • Publication number: 20210157856
    Abstract: Facet-based search processing is provided which includes receiving a query search context for querying documents of a document set, and retrieving, by similar document search processing, a document subset from the document set. The document subset includes documents of the set most similar to a search document of the query search context. Facet analysis processing is used to generate M candidate facets most-related to the query search context, and facets of the M candidate facets associated with documents of the subset are identified, and classified into a positive facet set and a negative facet set based, at least in part, on extent of facet commonality across the documents. A listing is of the documents in the document subset is provided, with the listing highlighting facets of the positive facet set.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Daiki TSUZUKU, Tohru HASEGAWA, Shunsuke ISHIKAWA, Keisuke NITTA, Yasumasa KAJINAGA, Masaki KOMEDANI
  • Patent number: 11016675
    Abstract: A computer-implemented method, a computer program product, and a computer system for optimizing timing for migrating data. The computer system sets a migration required flag for each of first tapes, in response to determining an estimated time period required for data migration from the first tapes to second tapes being smaller than an expiration time period of the first tapes. The computer system sets the migration required flag for a respective one of the first tapes, in response to determining the estimated time period being not smaller than the expiration time period and a predetermined time period has passed for the respective one of the first tapes. Data on tapes that migration required flags are set is to be migrated to the second tapes.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: May 25, 2021
    Assignee: International Business Machines Corporation
    Inventors: Hiroshi Itagaki, Shinsuke Mitsuma, Tohru Hasegawa, Tsuyoshi Miyamura, Noriko Yamamoto, Sosuke Matsui