Patents by Inventor Kota Yasunaga
Kota Yasunaga 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: 11886294Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: October 20, 2022Date of Patent: January 30, 2024Assignee: HITACHI, LTD.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Publication number: 20230066084Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: October 20, 2022Publication date: March 2, 2023Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Patent number: 11487619Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: May 21, 2021Date of Patent: November 1, 2022Assignee: Hitachi, Ltd.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Publication number: 20210271551Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: May 21, 2021Publication date: September 2, 2021Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Patent number: 11036585Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: November 12, 2019Date of Patent: June 15, 2021Assignee: HITACHI, LTD.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Publication number: 20200081781Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Patent number: 10496479Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: August 22, 2018Date of Patent: December 3, 2019Assignee: Hitachi, Ltd.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Patent number: 10185624Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: GrantFiled: July 28, 2017Date of Patent: January 22, 2019Assignee: Hitachi, Ltd.Inventors: Hiroaki Akutsu, Shunji Kawamura, Kota Yasunaga, Takahiro Yamamoto, Atsushi Kawamura
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Publication number: 20180357127Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: August 22, 2018Publication date: December 13, 2018Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Publication number: 20180011764Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: July 28, 2017Publication date: January 11, 2018Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Publication number: 20160371145Abstract: A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.Type: ApplicationFiled: September 30, 2015Publication date: December 22, 2016Inventors: Hiroaki AKUTSU, Shunji KAWAMURA, Kota YASUNAGA, Takahiro YAMAMOTO, Atsushi KAWAMURA
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Publication number: 20100217594Abstract: In a system in which a business organization authenticates a user by speaker recognition, there is provided the system that obviates a necessity for the user to register a speaker model by uttering voice for each business partner. A user device 20 has voice input unit 24, speaker model preparation unit 21, storage unit 22, and communication unit 23 that transfers a speaker model. A business-organization-side management device 40 has speaker model acquisition unit 41, storage unit 42, and communication unit 43. A business-organization-side speaker recognition device 50 has speaker model acquisition unit 51; speaker model registration unit 52, characteristic acquisition unit 53, and speaker recognition unit 54. The user prepares and retains a speaker model used for speaker recognition by use of the user device 20.Type: ApplicationFiled: May 7, 2010Publication date: August 26, 2010Applicant: PANASONIC CORPORATIONInventors: Yuki SAWADA, Kazuhiro Watada, Kota Yasunaga, Hiroyuki Sakate
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Publication number: 20080133655Abstract: A mobile communication apparatus are provided with a CPU 303 for processing data of contents, a flush memory 308 for storing program information relating to information of a program with which the CPU 303 can execute content data, and an RF portion 307 which transmits a request for content data and the program information to an external sever which provides the content processing information having content data and an executable program and receives the content processing information from the external server. The CPU 303 processes the content data based on the executable program.Type: ApplicationFiled: October 25, 2007Publication date: June 5, 2008Inventors: Kazuhiro Watada, Kota Yasunaga, Yusaku Miyazaki