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).

  • Detecting damaged areas on magnetic tape based on measuring a number of servo errors
    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
  • ANAPHORA RESOLUTION
    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
  • Detecting damaged areas on magnetic tape based on measuring a number of servo errors
    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
  • ORDERING ARCHIVED SEARCH RESULTS
    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
  • POSITIVE/NEGATIVE FACET IDENTIFICATION IN SIMILAR DOCUMENTS TO SEARCH CONTEXT
    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
  • Writing file information for tape file systems
    Patent number: 11016687
    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: receive a first portion of data, and divide the first portion of data into a plurality of blocks. An identification segment having identification information therein is appended to each of the blocks, each block and the corresponding identification information appended thereto forming a record. Each record is written in a data partition of the magnetic tape, and an index may be written in the data partition of the magnetic tape. The magnetic tape is rewound to a beginning of tape in response to a final one of the records being written in the magnetic tape, and the index is written in an index partition of the magnetic tape.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: May 25, 2021
    Assignee: International Business Machines Corporation
    Inventors: Atsushi Abe, Tohru Hasegawa
  • Optimizing timing for data migration from old generation tapes to new generation tapes
    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
  • CONTENT SHARING USING ADDRESS GENERATION
    Publication number: 20210149997
    Abstract: A method for sharing content is provided. An image of content is obtained. An address is generated based on the image using a set of predefined rules. The address is associated with the content. The content is provided to a computing device in response to the computing device accessing the address.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Inventors: MASAHITO SUGITA, Tohru Hasegawa, Takahito Tashiro, TAIHEI MIYAMOTO
  • AUTHENTICATION OF DEVICES USING TOUCH INTERFACE
    Publication number: 20210150016
    Abstract: A method for authentication is provided. The method includes storing, by a first electronic device, first path information in a memory. The first path information includes data representing a first path of input on a touch interface associated with the first electronic device. One or more first portions of the first path information are communicated to a second electronic device. One or more second portions of second path information are received from the second electronic device. The one or more second portions are compared to the first path information. The second electronic device is authenticated based on similarity between the one or more second portions and the first path information. The method may allow for separate authentication to be performed by each device.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Inventors: TAIHEI MIYAMOTO, Tohru Hasegawa, Takahito Tashiro, MASAHITO SUGITA
  • READING SEQUENTIALLY STORED FILES BASED ON READ AHEAD GROUPS
    Publication number: 20210149590
    Abstract: A plurality of files are stored on magnetic tape having at least one wrap for storing data sets. Each data set includes one or more records. A number of data sets that will remain in a buffer memory after performing a read ahead operation is determined. A number of records that are likely to remain in the buffer memory after performing a read ahead operation is determined. For each record likely to remain in the buffer memory after performing a read ahead operation, positions of the records on the magnetic tape are determined. Each file of the plurality of files are classified into one group of a plurality of groups based on a position of a record corresponding with each respective file and the number of records that are likely to remain in the buffer memory after performing a read ahead operation.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 20, 2021
    Inventors: Tsuyoshi Miyamura, Hiroshi Itagaki, Shinsuke Mitsuma, Tohru Hasegawa, Noriko Yamamoto, Sosuke Matsui
  • Optimized tape drive unmounting
    Patent number: 11010104
    Abstract: A computer-implemented method for faster unmount of tape drives includes generating a batch file to be migrated from a primary storage to a tape media acting as a secondary storage. The size of the batch file is determined based on an amount of available storage space on the tape media between a position in a longitudinal direction of storage (LPOS) and longitudinal position three (LP3) on the tape media. The computer-implemented method further includes migrating the batch file from the primary storage to the tape media mounted on a tape drive. Upon completion of migrating the batch file, the LPOS is within a predetermined threshold distance of LP3 on the tape media.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 18, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui
  • OPTIMIZING TIMING FOR DATA MIGRATION FROM OLD GENERATION TAPES TO NEW GENERATION TAPES
    Publication number: 20210117105
    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: Application
    Filed: October 22, 2019
    Publication date: April 22, 2021
    Inventors: Hiroshi Itagaki, Shinsuke Mitsuma, Tohru Hasegawa, Tsuyoshi Miyamura, Noriko Yamamoto, Sosuke Matsui
  • Writing data to tape medium
    Patent number: 10983716
    Abstract: A computer-implemented method for writing data to a tape medium, includes: writing a file of a first content to the tape medium; writing at least a part of the file of a second content to the tape medium, the second content being obtained by updating the first content; and writing an index including first metadata and second metadata to the tape medium, the first metadata being metadata of the file of the first content, the second metadata being metadata of the file of the second content.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 20, 2021
    Assignee: International Business Machines Corporation
    Inventors: Shinsuke Mitsuma, Tsuyoshi Miyamura, Tohru Hasegawa, Noriko Yamamoto, Sosuke Matsui
  • Text extraction and processing
    Patent number: 10963490
    Abstract: A system, computer program product, and method are provided to selectively index one or more subsets of documents or files. As data is extracted from a document or file, extracted text is organized into data portions and subject to evaluations. Meta characteristic data is leveraged to assess the extracted text. One or more subsets of the organized data portions are selectively identified and subject to enrichment processing, which creates and returns enriched and indexed subsets of the documents or files.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 30, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroaki Uetsuki, Shunsuke Ishikawa, Issei Yoshida, Asako Ono, Yasuyuki Tominaga, Kenta Watanabe, Hiroaki Kikuchi
  • OPTIMIZED TAPE DRIVE UNMOUNTING
    Publication number: 20210064298
    Abstract: A computer-implemented method for faster unmount of tape drives includes generating a batch file to be migrated from a primary storage to a tape media acting as a secondary storage. The size of the batch file is determined based on an amount of available storage space on the tape media between a position in a longitudinal direction of storage (LPOS) and longitudinal position three (LP3) on the tape media. The computer-implemented method further includes migrating the batch file from the primary storage to the tape media mounted on a tape drive. Upon completion of migrating the batch file, the LPOS is within a predetermined threshold distance of LP3 on the tape media.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui
  • WEB-SOURCED DEVICE CONTROL
    Publication number: 20210049200
    Abstract: A method, computer program product and computer system are provided to promote device usage compliance. A processor retrieves a current position for a device. A processor determines at least one nearby location based on the current position of the device. A processor retrieves search data regarding the at least one nearby location. A processor determines compliance information regarding the at least one location based, at least in part, on the search data. A processor configures the device based on the compliance information regarding the at least one location.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 18, 2021
    Inventors: KENTA WATANABE, SHUNSUKE ISHIKAWA, ASAKO ONO, HIROAKI UETSUKI, YASUYUKI TOMINAGA, TOHRU HASEGAWA, ISSEI YOSHIDA
  • LINKING CONTEXTUAL INFORMATION TO TEXT IN TIME DEPENDENT MEDIA
    Publication number: 20210042393
    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: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Shunsuke Ishikawa, Yasuyuki Tominaga, Hiroaki Uetsuki, Asako Ono, Tohru Hasegawa, Issei Yoshida, Kenta Watanabe
  • Reading and writing via file system for tape recording system
    Patent number: 10915244
    Abstract: Communicating data with a medium is provided. A cache is provided for storing target data of a file identified by an access request from an application of a host. The cache is divided into a read cache, a write cache, and an index cache. Responsive to receiving the access request: the medium is loaded onto a drive using a file system; target data is stored to the write cache and to the read cache; and the index file stored in the index cache is updated to reflect position metadata about the target data stored in the write cache. Responsive to initiating unloading of the medium from the drive: the updated index file stored in the index cache is written to the index partition of the medium; and the target data stored in the write cache is written onto a data partition of the medium without using the file system.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: February 9, 2021
    Assignee: International Business Machines Corporation
    Inventors: Takashi Ashida, Tohru Hasegawa, Hiroshi Itagaki, Shinsuke Mitsuma, Terue Watanabe
  • ELECTROCHROMIC DEVICE, CONTROL DEVICE OF ELECTROCHROMIC DEVICE, AND CONTROL METHOD OF ELECTROCHROMIC DEVICE
    Publication number: 20210033939
    Abstract: An electrochromic device includes: an electrochromic element operating in at least one of a first optical characteristic state and a second optical characteristic state; and a temperature measuring device configured to measure temperature, and circuitry to control voltage to be applied to the electrochromic element such that the second optical characteristic state becomes constant irrespective of the measured temperature.
    Type: Application
    Filed: July 14, 2020
    Publication date: February 4, 2021
    Inventors: Tohru HASEGAWA, Keiichiroh Yutani
  • Managing index writes to a tape medium
    Patent number: 10902872
    Abstract: Aspects of the present disclosure relate to managing index writes within a tape. A determination can be made that a change was made to at least one file stored within a tape medium while the tape medium was mounted within a tape drive. In response to the determination, an index can be written to a data partition of the tape medium. A determination can be made whether the change included any changes to a file at least equal to a threshold hierarchy level. In response to determining that the change did not include any changes to a file at least equal to the threshold hierarchy level, a first instruction can be issued to the tape drive to reposition the tape medium to the end of the tape. A second instruction can be issued to the tape drive to perform an unthread operation at low tension to rewind the tape medium.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: January 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui