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).
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Patent number: 12135727Abstract: Systems, methods, and computer programming products for estimating ingestion time of ingested files to be transformed into a searchable state for content mining by an on-premises computing environment or cloud environment, including multi-tenant cloud environments. Ingested files being indexed are analyzed for divisibility. Ingestion time varies based on the number of divisible elements (such as lines) of data within the ingested file and the amount of data per divisible element. A converter divides files into a plurality of elements treated as independent data and calculates the estimated ingestion time based on the number of divisions and file size for each divisible element. Estimated ingestion time is stored to internal fields corresponding to each divisible element in the index for the search data. During content mining, an internal condition is added to received search queries, displaying only search results where the estimated ingestion time is older than the current time.Type: GrantFiled: November 15, 2021Date of Patent: November 5, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Masaki Wakao
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Patent number: 12105980Abstract: A tool for tape library hierarchical storage management. The tool determines there is available tape capacity on a tape cartridge mounted to a tape drive to migrate data from a migration queue during recall operations. The tool sends a locate end of data (EOD) command to the tape drive. The tool determines the migration queue is within a longitudinal position (LPOS) range. The tool writes data from the migration queue to the tape cartridge within the LPOS range.Type: GrantFiled: September 29, 2023Date of Patent: October 1, 2024Assignee: International Business Machines CorporationInventors: Noriko Yamamoto, Hiroshi Itagaki, Tsuyoshi Miyamura, Tohru Hasegawa, Shinsuke Mitsuma, Atsushi Abe
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Patent number: 12099557Abstract: Described is a content mining system comprising a crawler configured to retrieve a plurality of files from a data storage system. The content mining system further comprises a plurality of converters configured to extract data from the plurality of files retrieved by the crawler from the data storage system, where each of the plurality of converters is configured to process a respective type of data. The content mining system further comprises a plurality of queues interposed between the crawler and the plurality of converters, where each queue is associated with a single converter.Type: GrantFiled: September 2, 2021Date of Patent: September 24, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Takuya Goto, Asako Ono, Xiangning Liu
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Publication number: 20240289197Abstract: In one general embodiment, a method includes receiving, at a data storage device that performs data operations on magnetic media, a command indicating a read range of records to read. A determination is made as to whether one or more of the records within the read range is expected to cause an error. In response to determining that one or more of the records within the read range is known to cause an error, an indication indicative of the record known to cause the error is returned.Type: ApplicationFiled: February 27, 2023Publication date: August 29, 2024Inventors: Hiroshi Itagaki, Tohru Hasegawa, Atsushi Abe, Tsuyoshi Miyamura, Noriko Yamamoto, Shinsuke Mitsuma
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Patent number: 12032825Abstract: A computer-implemented method for altering a current position in a Data Partition of a tape at which the tape transitions to a DATA_FULL state is disclosed. The computer-implemented method includes determining a size of a last Index appended to the Data Partition of the tape. The computer-implemented method further includes altering, based on the size of the last Index appended to the Data Partition of the tape, the current position in the Data Partition of the tape at which the tape transitions to DATA_FULL state to a new position in the DATA Partition of the tape at which the tape transitions to the DATA_FULL state, wherein the DATA_FULL state is a state on the tape in which only metadata write operations are permitted in the Data Partition.Type: GrantFiled: May 5, 2023Date of Patent: July 9, 2024Assignee: International Business Machines CorporationInventors: Atsushi Abe, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Noriko Yamamoto, Shinsuke Mitsuma, Sosuke Matsui
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Patent number: 12026189Abstract: A computer-implemented method, a computer program product, and a computer system for ranking explanatory variables in multivariate analysis. A computer system extracts words from documents related to categories, creates a histogram of the words in each category, and selects top words in each histogram, where the top words are used as representing words in each category. A computer system generates respective feature vectors of explanatory variable candidates and a feature vector of an objective variable, where a feature vector of a corresponding variable includes elements corresponding to respective ones of the categories and a value of element indicates whether a name of the corresponding variable is included in the top words. A computer system calculates cosine similarity between each of the respective feature vectors of the explanatory variable candidates and the feature vector of the objective variable. A computer system ranks the explanatory variable candidates, based on the cosine similarity.Type: GrantFiled: February 10, 2022Date of Patent: July 2, 2024Assignee: International Business Machines CorporationInventors: Kosuke Okamoto, Yoshinori Tahara, Tohru Hasegawa
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Patent number: 12001405Abstract: 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: GrantFiled: March 13, 2020Date of Patent: June 4, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui
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Publication number: 20240155769Abstract: A method for forming a functional layer includes giving information to the functional layer while forming the functional layer on a surface of an object. The functional layer includes an information area having the information and a non-information area other than the information area. The information area is different in color from the non-information area.Type: ApplicationFiled: October 30, 2023Publication date: May 9, 2024Applicant: Ricoh Company, Ltd.Inventors: Yukihiro WAKABAYASHI, Takashi FUJITA, Hiroyuki HIRATSUKA, Kohji TAKEUCHI, Tohru HASEGAWA, Hirotaka UNNO
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Publication number: 20240143221Abstract: 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: ApplicationFiled: October 28, 2022Publication date: May 2, 2024Inventors: Atsushi Abe, Tohru Hasegawa, Shinsuke Mitsuma, Hiroshi Itagaki, Tsuyoshi Miyamura, Noriko Yamamoto
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Patent number: 11971853Abstract: 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: GrantFiled: September 30, 2022Date of Patent: April 30, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Noriko Yamamoto, Shinsuke Mitsuma
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Patent number: 11960618Abstract: A computer implemented method searches data. A number of processor units generates a candidate search result using an index for a data source in response to a search query by a user, wherein the candidate search result comprises files accessible by the user based on access control information in the index. The number of processor units generates a completed search result with a set of the files from the candidate search result having a confidentiality level less than or equal to a threshold confidentiality level. The number of processor units determines whether the user has access to a file in the candidate search result in which the file has the confidentiality level greater than the threshold confidentiality level for the data source. The number of processor units adds the file to the completed search result in response to the file being accessible by the user in the data source.Type: GrantFiled: September 1, 2021Date of Patent: April 16, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Shunsuke Ishikawa, Yasumasa Kajinaga, Keisuke Nitta, Daiki Tsuzuku
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Patent number: 11954353Abstract: 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: GrantFiled: September 24, 2021Date of Patent: April 9, 2024Assignee: International Business Machines CorporationInventors: Atsushi Abe, Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Noriko Yamamoto
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Publication number: 20240111721Abstract: 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: ApplicationFiled: September 30, 2022Publication date: April 4, 2024Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Noriko Yamamoto, Shinsuke Mitsuma
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Publication number: 20240094949Abstract: 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: ApplicationFiled: September 15, 2022Publication date: March 21, 2024Inventors: Atsushi Abe, Tohru Hasegawa, Shinsuke Mitsuma, Hiroshi Itagaki, Noriko Yamamoto, Tsuyoshi Miyamura, Lucas Correia Villa Real
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Patent number: 11934699Abstract: 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: GrantFiled: March 21, 2022Date of Patent: March 19, 2024Assignee: International Business Machines CorporationInventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Noriko Yamamoto
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Patent number: 11914883Abstract: 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: GrantFiled: March 4, 2022Date of Patent: February 27, 2024Assignee: International Business Machines CorporationInventors: Shinsuke Mitsuma, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Noriko Yamamoto, Atsushi Abe
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Patent number: 11886724Abstract: A computer-implemented method according to one approach includes copying data stored on a Linear Tape File System (LTFS)-based storage system to blocks of a Random Access Nonvolatile Memory (RANVM) drive. The data is copied in units of the blocks of the drive. The method further includes constructing file metadata so that the copied data on the drive is accessible as one or more files. A computer program product according to another approach includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and/or executable by a controller to cause the controller to perform the foregoing method. A system according to another approach includes a processor, and logic integrated with the processor, executable by the processor, or integrated with and executable by the processor. The logic is configured to perform the foregoing method.Type: GrantFiled: December 1, 2020Date of Patent: January 30, 2024Assignee: International Business Machines CorporationInventors: Shinsuke Mitsuma, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Noriko Yamamoto, Sosuke Matsui, Atsushi Abe
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Publication number: 20240028238Abstract: A tool for tape library hierarchical storage management. The tool determines there is available tape capacity on a tape cartridge mounted to a tape drive to migrate data from a migration queue during recall operations. The tool sends a locate end of data (EOD) command to the tape drive. The tool determines the migration queue is within a longitudinal position (LPOS) range. The tool writes data from the migration queue to the tape cartridge within the LPOS range.Type: ApplicationFiled: September 29, 2023Publication date: January 25, 2024Inventors: Noriko Yamamoto, Hiroshi Itagaki, Tsuyoshi Miyamura, Tohru Hasegawa, Shinsuke Mitsuma, Atsushi Abe
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Patent number: 11882439Abstract: 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: GrantFiled: November 19, 2019Date of Patent: January 23, 2024Assignee: International Business Machines CorporationInventors: Taihei Miyamoto, Tohru Hasegawa, Takahito Tashiro, Masahito Sugita
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Publication number: 20240004571Abstract: A computer implemented method includes obtaining positional information corresponding to end of data (EOD) on a tape and a data extent stored in the tape, wherein the positional information includes longitudinal position (LPOS), latitudinal position (wrap), and number of data blocks, comparing a block number of at least one of a currently read or located data with the positional information of the data extent to identify a current position of a tape head, identifying a positional relationship between a location of data to be read, the positional information of the EOD on the tape, and the current position of the tape head, identifying a directional relationship between a current direction of the tape head locating to data to be read and a pending write direction, and determining an appendable range for data after the EOD on the tape based on the identified positional relationship and the identified directional relationship.Type: ApplicationFiled: June 30, 2022Publication date: January 4, 2024Inventors: Noriko Yamamoto, Atsushi Abe, Tsuyoshi Miyamura, Tohru Hasegawa, Hiroshi Itagaki, Shinsuke Mitsuma