Patents by Inventor Yuko Matsui
Yuko Matsui 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: 10055272Abstract: Provided is a storage system which is connected to a host computer and whereby data is read and written. The storage system comprises: a storage device which stores the data; and a storage controller wherein an error is detected by one of a plurality of first sections which are sections upon a transfer path of the data with respect to the storage device in a full check mode, an error is detected by one of second sections which are fewer than the first sections in a regular mode, and a switch is made to the full check mode when the error is detected in the regular mode.Type: GrantFiled: October 24, 2013Date of Patent: August 21, 2018Assignee: HITACHI, LTD.Inventors: Yusuke Nishihara, Yuko Matsui, Shintaro Kudo
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Patent number: 9996286Abstract: The present disclosure relates to a data storage system, and processes and computer programs for such data storage system, for example including processing of: managing one or more metadata tree structures for storing data to one or more storage devices of the data storage system in units of blocks, each metadata tree structure including a root node pointing directly and/or indirectly to blocks, and a leaf tree level having one or more direct nodes pointing to blocks, and optionally including one or more intermediate tree levels having one or more indirect nodes pointing to indirect nodes and/or direct nodes of the respective metadata tree structure; maintaining the root node and/or nodes of at least one tree level of each of at least one metadata structure in a cache memory; and managing I/O access to data based on the one or more metadata structures.Type: GrantFiled: December 9, 2016Date of Patent: June 12, 2018Assignee: Hitachi, Ltd.Inventors: Mitsuo Hayasaka, Christopher James Aston, Jonathan Mark Smith, Yuko Matsui, Simon Latimer Benham, Trevor Edward Willis
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Publication number: 20170329541Abstract: The present disclosure relates to a data storage system, and processes and computer programs for such data storage system, for example including processing of: managing one or more metadata tree structures for storing data to one or more storage devices of the data storage system in units of blocks, each metadata tree structure including a root node pointing directly and/or indirectly to blocks, and a leaf tree level having one or more direct nodes pointing to blocks, and optionally including one or more intermediate tree levels having one or more indirect nodes pointing to indirect nodes and/or direct nodes of the respective metadata tree structure; maintaining the root node and/or nodes of at least one tree level of each of at least one metadata structure in a cache memory; and managing I/O access to data based on the one or more metadata structures.Type: ApplicationFiled: December 9, 2016Publication date: November 16, 2017Inventors: Mitsuo HAYASAKA, Christopher James ASTON, Jonathan Mark SMITH, Yuko MATSUI, Simon Latimer BENHAM, Trevor Edward WILLIS
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Patent number: 9798661Abstract: A receiving controller which receives a read request out of first and second storage controllers transfers the read request to an associated controller which is associated with a read source storage area out of the first and second storage controllers when the receiving controller is not the associated controller. It is however the receiving controller that reads the read-target data from a read source storage device, writes the read-target data to a cache memory of the receiving controller, and transmits the read-target data written in the cache memory of the receiving controller to a host apparatus.Type: GrantFiled: October 15, 2013Date of Patent: October 24, 2017Assignee: HITACHI, LTD.Inventors: Yoshifumi Mimata, Yuko Matsui, Shintaro Kudo
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Patent number: 9740420Abstract: A storage system comprises a storage apparatus and a storage device that is a basis for a storage area provided to the storage apparatus. The storage device determines whether or not a first format that is a format of data stored in the storage device and a second format that is a format of data utilized by the storage apparatus managing the data match with each other, and performs format conversion of either converting data in the first format to data in the second format or converting data in the second format to data in the first format in a case where the first format and the second format do not match with each other.Type: GrantFiled: March 21, 2013Date of Patent: August 22, 2017Assignee: HITACHI, LTD.Inventors: Yuko Matsui, Shigeo Homma
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Patent number: 9710168Abstract: Disclosed is a storage system that suppress occurrence of a bottleneck in the storage system, efficiently uses a bandwidth of hardware, and achieves high reliability. A storage system includes a storage apparatus that stores data, a controller that controls data input/output with respect to the storage apparatus, and an interface that couples the storage apparatus and the controller. The storage apparatus has a plurality of physical ports that are couples to the interface. The controller logically partitions a storage area of the storage apparatus into a plurality of storage areas and provides the plurality of storage areas, or allocates the plurality of physical ports to the logically partitioned storage areas.Type: GrantFiled: December 14, 2015Date of Patent: July 18, 2017Assignee: Hitachi, Ltd.Inventors: Mamoru Motonaga, Takashi Chikusa, Takashi Nozawa, Yuko Matsui, Megumi Hokazono
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Publication number: 20160371009Abstract: In a storage system, a processor divides a plurality of sections that constitute a physical storage area in a storage device into primary sections and secondary sections, associates one primary section and one secondary section with each other and then manages the associated primary section and secondary section, and writes data having been written to a primary section also to a secondary section corresponding to the primary section.Type: ApplicationFiled: June 30, 2014Publication date: December 22, 2016Applicant: HITACHI, LTD.Inventors: Takahiro SATO, Yuko MATSUI, Koutarou MURAMATSU
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Publication number: 20160246660Abstract: Provided is a storage system which is connected to a host computer and whereby data is read and written. The storage system comprises: a storage device which stores the data; and a storage controller wherein an error is detected by one of a plurality of first sections which are sections upon a transfer path of the data with respect to the storage device in a full check mode, an error is detected by one of second sections which are fewer than the first sections in a regular mode, and a switch is made to the full check mode when the error is detected in the regular mode.Type: ApplicationFiled: October 24, 2013Publication date: August 25, 2016Applicant: HITACHI, LTD.Inventors: Yusuke NISHIHARA, Yuko MATSUI, Shintaro KUDO
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Patent number: 9393191Abstract: Provided are a piceatannol-containing composition which is a composition originating in a natural material and containing piceatannol at a high concentration, and a method of producing the piceatannol-containing composition. A piceatannol-containing composition which contains 0.0001 to 99.9% by mass of piceatannol is obtained by extracting passion fruit seeds. The extraction of piceatannol is carried out by grinding the passion fruit seeds, adding at least one solvent selected from an aqueous alcohol-based solvent and an aqueous ketone-based solvent and agitating to thereby extract piceatannol into the above-described solvent. In this case, it is preferable to conduct stepwise extraction by using both of the aqueous alcohol-based solvent and the aqueous ketone-based solvent.Type: GrantFiled: December 19, 2012Date of Patent: July 19, 2016Assignee: MORINAGA & CO., LTD.Inventors: Yuko Matsui, Masanori Kamei, Kenkichi Sugiyama
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Patent number: 9361528Abstract: The distance to a target vehicle is calculated. To achieve this, a target vehicle traveling ahead is imaged and it is determined to what vehicle group, such as a light-duty vehicle group, standard passenger car group or heavy-duty vehicle group, the image of the target vehicle belongs. Representative vehicle widths are stored in a vehicle group table on a per-vehicle-group basis. The distance from one's own vehicle to a target vehicle is calculated using the vehicle width that corresponds to the vehicle group decided.Type: GrantFiled: January 31, 2014Date of Patent: June 7, 2016Assignee: FUJIFILM CORPORATIONInventors: Shunichiro Nonaka, Yuko Matsui
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Patent number: 9349805Abstract: A semiconductor apparatus includes a substrate; a first semiconductor layer formed on the substrate and formed of a nitride semiconductor; a second semiconductor layer formed on the first semiconductor layer and formed of a nitride semiconductor; first and second gate electrodes, a source electrode, and a drain electrode formed on the second semiconductor layer; an interlayer insulation film formed on the second semiconductor layer; and a field plate formed on the interlayer insulation film. Further, the first gate electrode and the second gate electrode are formed between a region where the source electrode is formed and a region where the field plate is formed, an element isolation region is formed in the first and the second semiconductor layers which are between the first and the second gate electrodes, and the second gate electrode is electrically connected to the source electrode.Type: GrantFiled: January 29, 2014Date of Patent: May 24, 2016Assignee: Transphorm Japan, Inc.Inventors: Yuji Ito, Yuko Matsui, Yoshiyuki Kotani
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Patent number: 9336090Abstract: Storage apparatus, in response to write command specifying write destination with regards to multiple virtual areas, allocates a free real area of multiple real areas based on storage devices to a write-destination virtual area, of the multiple virtual areas, to which the write destination belongs, and writes write-target data conforming to the write command to the allocated real area. The storage apparatus, where a first write command has been received subsequent to a snapshot acquisition time point, erases an allocation of a first real area to a first virtual area to which the write destination specified in the first write command belongs, allocates the first real area to a free second virtual area to which a real area has not been allocated, allocates a free second real area to the first virtual area, writes write-target data conforming to the first write command to the second real area.Type: GrantFiled: October 10, 2012Date of Patent: May 10, 2016Assignee: Hitachi, Ltd.Inventors: Yudai Takayama, Yuko Matsui
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Publication number: 20160098196Abstract: Disclosed is a storage system that suppress occurrence of a bottleneck in the storage system, efficiently uses a bandwidth of hardware, and achieves high reliability. A storage system includes a storage apparatus that stores data, a controller that controls data input/output with respect to the storage apparatus, and an interface that couples the storage apparatus and the controller. The storage apparatus has a plurality of physical ports that are couples to the interface. The controller logically partitions a storage area of the storage apparatus into a plurality of storage areas and provides the plurality of storage areas, or allocates the plurality of physical ports to the logically partitioned storage areas.Type: ApplicationFiled: December 14, 2015Publication date: April 7, 2016Inventors: Mamoru MOTONAGA, Takashi CHIKUSA, Takashi NOZAWA, Yuko MATSUI, Megumi HOKAZONO
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Publication number: 20160019145Abstract: A receiving controller which receives a read request out of first and second storage controllers transfers the read request to an associated controller which is associated with a read source storage area out of the first and second storage controllers when the receiving controller is not the associated controller. It is however the receiving controller that reads the read-target data from a read source storage device, writes the read-target data to a cache memory of the receiving controller, and transmits the read-target data written in the cache memory of the receiving controller to a host apparatus.Type: ApplicationFiled: October 15, 2013Publication date: January 21, 2016Applicant: Hitachi, Ltd.Inventors: Yoshifumi MIMATA, Yuko MATSUI, Shintaro KUDO
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Patent number: 9223508Abstract: Disclosed is a storage system that suppress occurrence of a bottleneck in the storage system, efficiently uses a bandwidth of hardware, and achieves high reliability. A storage system includes a storage apparatus that stores data, a controller that controls data input/output with respect to the storage apparatus, and an interface that couples the storage apparatus and the controller. The storage apparatus has a plurality of physical ports that are couples to the interface. The controller logically partitions a storage area of the storage apparatus into a plurality of storage areas and provides the plurality of storage areas, or allocates the plurality of physical ports to the logically partitioned storage areas.Type: GrantFiled: February 18, 2015Date of Patent: December 29, 2015Assignee: Hitachi, Ltd.Inventors: Mamoru Motonaga, Takashi Chikusa, Takashi Nozawa, Yuko Matsui, Megumi Hokazono
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Publication number: 20150339076Abstract: A storage system comprises a storage apparatus and a storage device that is a basis for a storage area provided to the storage apparatus. The storage device determines whether or not a first format that is a format of data stored in the storage device and a second format that is a format of data utilized by the storage apparatus managing the data match with each other, and performs format conversion of either converting data in the first format to data in the second format or converting data in the second format to data in the first format in a case where the first format and the second format do not match with each other.Type: ApplicationFiled: March 21, 2013Publication date: November 26, 2015Applicant: HITACHI, LTD.Inventors: Yuko MATSUI, Shigeo HOMMA
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Patent number: 9135709Abstract: The distance to a target vehicle is calculated comparatively accurately. To achieve this, a target vehicle traveling ahead of one's own vehicle is imaged by a camera and it is determined to what vehicle group the image of the target vehicle belongs. A first distance from one's own vehicle to the target vehicle is calculated by a circuit using the representative vehicle width of the vehicle group decided. A vanishing point is detected from the captured image by a vanishing point detection circuit and a second distance from one's own vehicle to the target vehicle is calculated utilizing the vanishing point. The distance to the target vehicle is decided from the first and second distances by a distance decision circuit, wherein the shorter the distance to the vanishing point, the more the value of a weighting coefficient of the second distance is reduced.Type: GrantFiled: January 31, 2014Date of Patent: September 15, 2015Assignee: FUJIFILM CORPORATIONInventors: Shunichiro Nonaka, Yuko Matsui
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Storage system having nonvolatile semiconductor storage device with nonvolatile semiconductor memory
Patent number: 9116622Abstract: A storage system coupled to a host has a nonvolatile semiconductor storage device that includes a nonvolatile semiconductor memory configured by a plurality of pages, and a storage controller coupled to the semiconductor storage device. In the case where data stored in the plurality of pages become unnecessary, with this plurality of pages being the basis of a region of a logical volume based on the nonvolatile semiconductor storage device, the storage controller transmits, to the nonvolatile semiconductor storage device, an unnecessary reduction request for reducing the number of pages that are the basis of the region having the unnecessary data stored therein. On the basis of the unnecessary reduction request, the nonvolatile semiconductor storage device invalidates the plurality of pages that are the basis of the region having the unnecessary data stored therein.Type: GrantFiled: March 13, 2012Date of Patent: August 25, 2015Assignee: Hitachi, Ltd.Inventors: Susumu Suzuki, Shigeo Homma, Yuko Matsui -
Publication number: 20150160875Abstract: Disclosed is a storage system that suppress occurrence of a bottleneck in the storage system, efficiently uses a bandwidth of hardware, and achieves high reliability. A storage system includes a storage apparatus that stores data, a controller that controls data input/output with respect to the storage apparatus, and an interface that couples the storage apparatus and the controller. The storage apparatus has a plurality of physical ports that are couples to the interface. The controller logically partitions a storage area of the storage apparatus into a plurality of storage areas and provides the plurality of storage areas, or allocates the plurality of physical ports to the logically partitioned storage areas.Type: ApplicationFiled: February 18, 2015Publication date: June 11, 2015Inventors: Mamoru MOTONAGA, Takashi CHIKUSA, Takashi NOZAWA, Yuko MATSUI, Megumi HOKAZONO
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Patent number: 9015410Abstract: A first storage control apparatus unit has a first logical volume. A second storage control apparatus unit has a second logical volume, which is a virtual logical volume and is mapped to the first logical volume, and a third logical volume that is associated with the first logical volume. The second storage control apparatus unit receives, from a host, an I/O command which has information including, as information denoting an I/O-destination area, an ID of the second logical volume and an address of an area of the second logical volume. The second storage control apparatus unit identifies a logical volume having an area that serves as an entity of the I/O-destination area, and a storage control apparatus unit that has this logical volume.Type: GrantFiled: January 5, 2011Date of Patent: April 21, 2015Assignee: Hitachi, Ltd.Inventors: Rikiya Mizuta, Yuko Matsui, Masayuki Yamamoto, Shigeo Homma, Hiroshi Kawano