Patents by Inventor Noriko Yamamoto

Noriko 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).

  • Save block data to tape in a reverse order
    Patent number: 10152993
    Abstract: Linear Tape File System that can accommodate various storage orders, such as sequential and reverse sequential, on a tape medium. The storage order may be reversed (or otherwise changed) at the block level and also the bit order within the block level. The LFTS related data associated with the LFTS file system stores data sufficient to indicate storage order (for example, reverse), so that the motions of the tape medium and tape drive can be coordinated during reading or erasing operations to be performed in the correct order, with a view to the order the data was stored on the tape. Storing data in reverse order on an LFTS tape can lead to certain operational advantages.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: December 11, 2018
    Assignee: International Business Machines Corporation
    Inventors: Noriko Yamamoto, Tohru Hasegawa, Tsuyoshi Miyamura, Shinsuke Mitsuma, Sosuke Matsui, Hiroshi Itagaki
  • Provision of information about fragmentation of file on sequential access medium
    Patent number: 10133487
    Abstract: A mechanism is provided for providing information about fragmentation of a file on a sequential access medium by a computer system is disclosed. An actual time for reading the file recorded on the sequential access medium is estimated based on a physical position of the file. A total length of the file on the sequential access medium is calculated based on a physical length of each data piece constituting the file. An expected time for reading the file by assuming that the file is rewritten continuously is estimated based on the total length of the file. Information about the fragmentation of the file is then provided based on the actual time and the expected time.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 20, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Apparatus, method, and program product for tape copying
    Patent number: 10120612
    Abstract: An apparatus, method, system, and program product are disclosed for tape copying. One method includes mounting a first source tape of multiple source tapes on a source tape drive. The method includes mounting a destination tape on a destination tape drive. The method also includes copying a first index of an index partition of the first source tape to a first copied index of an index partition of the destination tape. The method includes storing first position information corresponding to the first copied index on the destination tape. The method also includes copying first data of a data partition of the first source tape to a first copied data of a data partition of the destination tape. The method includes storing second position information corresponding to the first copied data on the destination tape.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 6, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Securing recorded data
    Patent number: 10089481
    Abstract: A method, executed by a computer, for recording data includes splitting a file into sequential extents, reordering the sequential extents into non-sequential extents, writing the non-sequential extents to a storage medium, writing dummy data to the storage medium, and writing extent placement information corresponding to a placement for the non-sequential extents to the storage medium. A computer program product and computer system corresponding to the above method are also disclosed herein.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 2, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Shinsuke Mitsuma, Noriko Yamamoto, Terue Watanabe
  • Backup and restoration for storage system
    Patent number: 10083180
    Abstract: A backup method is provided for a file system for managing hierarchical storage including one or more storage media on a computer system including one or more computers. Each of the one or more storage media includes a data part which is separated from an index and on which updated information is appended and kept. Each of a plurality of pieces of data within the file system is managed to be migrated to at least any of the one or more storage media. The backup method includes backing up metadata of the plurality of pieces of data migrated within the file system; and backing up the index of each of the one or more storage media to which the plurality of pieces of data have been migrated, substantially at the same time point as the metadata.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Norie Iwasaki, Sosuke Matsui, Tsuyoshi Miyamura, Terue Watanabe, Noriko Yamamoto
  • Recalling files stored on a tape
    Patent number: 10073632
    Abstract: The time required for recalling the file is reduced when the file is written in a mounted plurality of tapes in comparison to recalling the file when written in a non-mounted plurality of tapes. In the non-mounted state, criteria does not typically exist in order to recall the written file within the plurality of tapes. Embodiments of the present invention provide systems and methods for recalling files based on criteria which considers: the mounted state of a tape; the type of tape; the type of available tape drive; the number of files included in a tape; and the location of the written file in a tape.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 11, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Recalling files stored on a tape
    Patent number: 10073631
    Abstract: The time required for recalling the file is reduced when the file is written in a mounted plurality of tapes in comparison to recalling the file when written in a non-mounted plurality of tapes. In the non-mounted state, criteria does not typically exist in order to recall the written file within the plurality of tapes. Embodiments of the present invention provide systems and methods for recalling files based on criteria which considers: the mounted state of a tape; the type of tape; the type of available tape drive; the number of files included in a tape; and the location of the written file in a tape.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 11, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Storing meta-information on tape recording systems
    Patent number: 10067700
    Abstract: A capability to store meta-information related to file access histories on tape recording systems is provided. Base meta-information is stored on a tape. The base meta-information is meta-information that is associated with one or more files that are stored on the tape and is based, at least in part, on a tape access operation history. A first quantity of differentiated meta-information is stored on the tape at a predetermined time interval after storing the base meta-information, wherein the first quantity of differentiated meta-information is based, at least in part, on the tape access operation history and reflects a history of at least one file of the one or more files that are associated with the base meta-information.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: September 4, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Shinsuke Mitsuma, Terue Watanabe, Noriko Yamamoto
  • Reducing read operations and branches in file system policy checks
    Patent number: 10067943
    Abstract: A method to identify data elements conforming to a policy includes receiving a request to identify data elements in an input set of data elements that conform to one or more requested policies. According to the method, policy output information describing data elements that conform to a requested policy are saved in association with the requested policy. In response to receiving a subsequent request to identify data elements in a subsequent set of data elements that conform to the requested policy, the method includes outputting the saved policy output information based on the policy output information having been saved in association with the requested policy. A computer program product and a system, configured with processors and a memory that can store saved policy information, can implement the method.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 4, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Data backup using metadata mapping
    Patent number: 10049018
    Abstract: An information processing apparatus, backup method, and program product that enable efficient differential backup. In one embodiment, an information processing apparatus for files stored in a storage device includes: a metadata management unit for managing metadata of files stored in the storage device; a map generation unit for generating a map which indicates whether metadata associated with an identification value uniquely identifying a file in the storage device is present or absent; and a backup management unit for scanning the metadata to detect files that have been created, modified, or deleted since the last backup, and storing at least a data block and the metadata for a detected file in a backup storage device as backup information in association with the identification value.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 14, 2018
    Assignee: International Business Machines Corporation
    Inventors: Norie Iwasaki, Sosuke Matsui, Tsuyoshi Miyamura, Terue Watanabe, Noriko Yamamoto
  • Data backup using metadata mapping
    Patent number: 10049019
    Abstract: An information processing apparatus, backup method, and program product that enable efficient differential backup. In one embodiment, an information processing apparatus for files stored in a storage device includes: a metadata management unit for managing metadata of files stored in the storage device; a map generation unit for generating a map which indicates whether metadata associated with an identification value uniquely identifying a file in the storage device is present or absent; and a backup management unit for scanning the metadata to detect files that have been created, modified, or deleted since the last backup, and storing at least a data block and the metadata for a detected file in a backup storage device as backup information in association with the identification value.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 14, 2018
    Assignee: International Business Machines Corporation
    Inventors: Norie Iwasaki, Sosuke Matsui, Tsuyoshi Miyamura, Terue Watanabe, Noriko Yamamoto
  • AVOIDING INODE NUMBER CONFLICT DURING METADATA RESTORATION
    Publication number: 20180225181
    Abstract: A method for avoiding inode number conflict during metadata restoration at a restoration location is provided. The method includes receiving metadata for a first file including an inode containing an initial internal inode number and a directory entry containing an external inode number, determining an allocation status of the initial internal inode number at the restoration location, identifying an available internal inode number to be allocated to the first file, updating the initial internal inode number in the inode for the first file with the available internal inode number, registering the available internal inode number and the external inode number in an inode mapping table indicating correspondence between the available internal inode number and the external inode number, and restoring the inode based on the available internal inode number.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Inventors: Norie Iwasaki, Sosuke Matsui, Tsuyoshi Miyamura, Noriko Yamamoto
  • APPARATUS, METHOD, AND PROGRAM PRODUCT FOR TAPE COPYING
    Publication number: 20180196607
    Abstract: An apparatus, method, system, and program product are disclosed for tape copying. One method includes mounting a first source tape of multiple source tapes on a source tape drive. The method includes mounting a destination tape on a destination tape drive. The method also includes copying a first index of an index partition of the first source tape to a first copied index of an index partition of the destination tape. The method includes storing first position information corresponding to the first copied index on the destination tape. The method also includes copying first data of a data partition of the first source tape to a first copied data of a data partition of the destination tape. The method includes storing second position information corresponding to the first copied data on the destination tape.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 12, 2018
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Piezoelectric transducer, ultrasonic probe, and piezoelectric transducer manufacturing method
    Patent number: 9972766
    Abstract: According to embodiment, a piezoelectric transducer includes a polarized single crystal piezoelectric body comprising a lead complex perovskite compound containing niobium oxide and at least one of magnesium oxide and indium oxide and including a first plane whose crystal orientation is [100] and a second plane which faces the first plane and whose crystal orientation is [100], and first electrode provided on the first plane side of the body and a second electrode provided on the second plane side of the body. A ratio of a second FWHM of diffracted X-rays at the Miller index (400) of the body to a first FWHM of diffracted X-rays at the miller index (400) of the body which is unpolarized or has undergone depolarization processing is not less than 0.22 and not more than 0.4.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 15, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yohachi Yamashita, Noriko Yamamoto, Yasuharu Hosono, Kazuhiro Itsumi
  • Ultrasonic probe, piezoelectric transducer, method of manufacturing ultrasonic probe, and method of manufacturing piezoelectric transducer
    Patent number: 9966524
    Abstract: According to one embodiment, an ultrasonic probe includes a single crystal piezoelectric body with first and second planes facing each other and having a crystal orientation of [100], first and second electrodes on the respective first and second plane of the piezoelectric body, an acoustic matching layer on the first electrode, and a backing member under the second electrode, wherein the piezoelectric body is polarized along a first direction passing through the piezoelectric body and first and second electrodes, a fracture surface of the piezoelectric body that includes the first direction has a multilayer shape along one of the first and second electrodes, and a thickness of each layer of the multilayer shape is not less than 0.5 ?m and not more than 5 ?m.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: May 8, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Noriko Yamamoto, Yohachi Yamashita, Yasuharu Hosono, Kazuhiro Itsumi, Kazuhiko Higuchi
  • Avoiding inode number conflict during metadata restoration
    Patent number: 9965361
    Abstract: A method for avoiding inode number conflict during metadata restoration at a restoration location is provided. The method includes receiving metadata for a first file including an inode containing an initial internal inode number and a directory entry containing an external inode number, determining an allocation status of the initial internal inode number at the restoration location, identifying an available internal inode number to be allocated to the first file, updating the initial internal inode number in the inode for the first file with the available internal inode number, registering the available internal inode number and the external inode number in an inode mapping table indicating correspondence between the available internal inode number and the external inode number, and restoring the inode based on the available internal inode number.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 8, 2018
    Assignee: International Business Machines Corporation
    Inventors: Norie Iwasaki, Sosuke Matsui, Tsuyoshi Miyamura, Noriko Yamamoto
  • REDUCING READ OPERATIONS AND BRANCHES IN FILE SYSTEM POLICY CHECKS
    Publication number: 20180101539
    Abstract: A method to identify data elements conforming to a policy includes receiving a request to identify data elements in an input set of data elements that conform to one or more requested policies. According to the method, policy output information describing data elements that conform to a requested policy are saved in association with the requested policy. In response to receiving a subsequent request to identify data elements in a subsequent set of data elements that conform to the requested policy, the method includes outputting the saved policy output information based on the policy output information having been saved in association with the requested policy. A computer program product and a system, configured with processors and a memory that can store saved policy information, can implement the method.
    Type: Application
    Filed: December 22, 2017
    Publication date: April 12, 2018
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • Provision of Information About Fragmentation of File on Sequential Access Medium
    Publication number: 20180101309
    Abstract: A mechanism is provided for providing information about fragmentation of a file on a sequential access medium by a computer system is disclosed. An actual time for reading the file recorded on the sequential access medium is estimated based on a physical position of the file. A total length of the file on the sequential access medium is calculated based on a physical length of each data piece constituting the file. An expected time for reading the file by assuming that the file is rewritten continuously is estimated based on the total length of the file. Information about the fragmentation of the file is then provided based on the actual time and the expected time.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sokuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • REDUCING READ OPERATIONS AND BRANCHES IN FILE SYSTEM POLICY CHECKS
    Publication number: 20180075043
    Abstract: A method to identify data elements conforming to a policy includes receiving a request to identify data elements in an input set of data elements that conform to one or more requested policies. According to the method, policy output information describing data elements that conform to a requested policy are saved in association with the requested policy. In response to receiving a subsequent request to identify data elements in a subsequent set of data elements that conform to the requested policy, the method includes outputting the saved policy output information based on the policy output information having been saved in association with the requested policy. A computer program product and a system, configured with processors and a memory that can store saved policy information, can implement the method.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 15, 2018
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto
  • MANAGEMENT OF OBJECT LOCATION IN HIERARCHICAL STORAGE
    Publication number: 20180074747
    Abstract: There is disclosed a method performed by a computer system for managing a location of an object in a hierarchical storage that includes a plurality of storage layers. In the method, the computer system receives a selection of one storage layer for storing a selected object from among the plurality of the storage layers via a network connected to the computer system. The computer system also moves the selected object to the one storage layer from other storage layer currently that stores the selected object among the plurality of the storage layers. The computer system further excludes the selected object from targets of a predetermined space management that is being applied to objects in the hierarchical storage.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 15, 2018
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Sosuke Matsui, Shinsuke Mitsuma, Tsuyoshi Miyamura, Noriko Yamamoto