Patents by Inventor Masayuki Yamamoto

Masayuki 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).

  • Patent number: 8954659
    Abstract: A storage system 100, which has a plurality of flash packages 230, has a function for minimizing the imbalance of the number of deletions of each block inside the flash package 230 and a block-unit capacity virtualization function, and efficiently manifests lessening of the imbalance of the number of deletions and reduction in the data storage capacity for the entire storage system 100 by having functions for calculating the number of deletions and the data occupancy of each flash package 230, and for transferring data between the flash packages 230 on the basis of the values of these number of deletions and data occupancy.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 10, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Sadahiro Sugimoto, Akihiko Araki, Masayuki Yamamoto
  • Publication number: 20140379974
    Abstract: A storage system has a plurality of flash packages, and a storage controller for receiving a write request from a host and sending a write-data write request based on data conforming to this write request to a write-destination flash package. A virtual capacity, which is larger than the physical capacity of the flash package, is defined in the storage controller. The storage system compresses the write data, and writes the compressed write data to the write-destination flash chip.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Akira YAMAMOTO, Masayuki YAMAMOTO
  • Patent number: 8918615
    Abstract: An embodiment of this invention is an information storage system comprising a plurality of storage systems connected to be able to communicate. Each of the plurality of storage systems includes default storage system identification information which is the same to the plurality of storage systems, common volume identification information for uniquely identifying volumes provided by the plurality of storage systems to a host computer among the plurality of storage systems, and a controller configured to return the default storage system identification information to the host computer in response to a request from the host computer and to process a read or write request to a volume accompanying the common volume identification information from the host computer.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 23, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akihisa Nagami, Koh Nakamichi, Yasunori Kaneda, Hirokazu Ikeda, Masayuki Yamamoto
  • Publication number: 20140364335
    Abstract: The present invention provides a method for screening a test compound for a compound regulating Nrf1 activity, comprising using Nrf1 and Lipin1 and/or PGC-1?. A method for screening for a compound regulating Nrf1 activity is provided by the invention.
    Type: Application
    Filed: January 23, 2013
    Publication date: December 11, 2014
    Inventors: Masayuki Yamamoto, Yuki Furusawa
  • Patent number: 8892840
    Abstract: A computer system and data migration method capable of replacing a storage apparatus with another storage apparatus and avoiding stopping data transmission or reception between a host computer and the storage apparatuses without depending on the configuration of existing storage apparatuses and other devices is suggested.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Saito, Yoshiaki Eguchi, Masayuki Yamamoto, Akira Yamamoto
  • Patent number: 8881662
    Abstract: An inside of an incinerator body into which sludge is fed is divided into a lower portion, a portion above the lower portion, and a top portion in a height direction. The lower portion serves as a pyrolysis zone for supplying fluidizing air having an air ratio of 1.1 or less together with fuel to thermally decompose the sludge while fluidizing the sludge. The portion above the lower portion serves as an over bed combustion zone for supplying only combustion air having an air ratio of 0.1 to 0.3 to form a local high temperature place to decompose N2O. The top portion serves as a perfect combustion zone for perfectly combusting unburned contents. The quantity of N2O generated during sludge incineration can be drastically reduced while maintaining the use quantity of auxiliary fuel at the same level as that of a conventional incineration method.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 11, 2014
    Assignee: Metawater Co., Ltd.
    Inventors: Masaki Yamada, Tetsuya Yanase, Masayuki Yamamoto, Tomoyuki Takeshita, Kosuke Kamiya
  • Patent number: 8880810
    Abstract: A storage system includes a first storage apparatus and a second storage apparatus. The first storage apparatus includes a capacity pool that is partitioned into multiple pool pages and includes a storage area of an external logical volume provided by at least one storage apparatus. The second storage apparatus provides first virtual volume which is a virtual logical volume comprising multiple first virtual areas. In a case of receiving a write request from the computer to a virtual area in the first virtual volume to which a page is not allocated, an unallocated pool page of the external logical volume is allocated to the virtual area. An authority to allocate the unallocated pool page of the external logical volume is assigned to the first storage apparatus.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 4, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Noboru Morishita, Hideo Saito, Yoshiaki Eguchi, Masayuki Yamamoto
  • Publication number: 20140325015
    Abstract: A computer system including a management computer for managing the entire system, an integral apparatus, and a high-level connecting device for connecting the management computer and the integral apparatus is designed so that the management computer retains integral apparatus internal configuration information, configuration information about an integral apparatus to be introduced, that indicates the configuration of the integral apparatus that may possibly be introduced to the system, and lifetime information indicating lifetime of the integral apparatus; obtains connectivity guarantee information indicating whether connectivity between the computer and the storage apparatus is guaranteed or not; selects an integral apparatus to be removed from the system by referring to the lifetime information; selects an integral apparatus to be introduced to the system by referring to the integral apparatus internal configuration information, the configuration information about the integral apparatus to be introduced, an
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Inventors: Yasunori KANEDA, Yutaka KUDO, Yukio OGAWA, Masakatsu MORI, Tomoki SEKIGUCHI, Masayuki YAMAMOTO, Naoto MATSUNAMI
  • Patent number: 8862805
    Abstract: A storage system has a plurality of flash packages, and a storage controller for receiving a write request from a host and sending a write-data write request based on data conforming to this write request to a write-destination flash package. A virtual capacity, which is larger than the physical capacity of the flash package, is defined in the storage controller. The storage system compresses the write data, and writes the compressed write data to the write-destination flash chip.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: October 14, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Masayuki Yamamoto
  • Patent number: 8862839
    Abstract: A storage system which has flash memories constituting a storage area and a function of placing and handling the flash memories in on-line mode and off-line mode, and which stores and manages management information of the flash memories in on-line mode. The storage system includes: when some or all of flash memory in on-line mode is placed in off-line mode, creating a management area in off-line mode in the flash memories by moving existing data in an area used as the management area to an area other than the management area; writing the management information of the flash memories to the created management area; and placing the flash memories in off-line mode.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: October 14, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Masayasu Asano, Hiroshi Nasu, Masayuki Yamamoto, Nobuhiro Maki
  • Patent number: 8850157
    Abstract: It is made possible to update information registered in a database of iSNS, SLP and the like in response to a configurational change in a storage device, and for a host computer to discover a disk volume. In response to changes in contents of operation to alter a storage configuration such as in creating or deleting a volume or LUN, contents of the alteration are reflected in the database of iSNS or SLP. Also, in response to a change in setting of LUN masking, a discovery domain of iSNS or attribute values of SLP are updated so that the host computer can discover the disk volume. Also, objects and services are reregistered periodically according to a registration period of iSNS or lifetime of SLP to prevent registered contents from expiring.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: September 30, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Mimatsu, Masayuki Yamamoto
  • Publication number: 20140258615
    Abstract: A storage system has multiple disk controller (DKC) units that are coupled to one another in accordance with a coupling mode that satisfies the following (a1) through (a3): (a1) One DKC inside one DKC unit and one DKC inside another DKC unit are coupled via a second type of coupling medium that differs from the internal bus of the DKC and has a longer maximum communication distance than a first type of coupling medium, which is the same type of coupling medium as the internal bus of the DKC; (a2) the one DKC unit virtualizes a logical volume of the other DKC unit and provides this virtualized logical volume to host(s) coupled to the one DKC unit; and (a3) the other DKC unit virtualizes a logical volume of the DKC unit and provides this virtualized logical volume to host(s) coupled to the other DKC unit.
    Type: Application
    Filed: April 17, 2014
    Publication date: September 11, 2014
    Applicant: HITACHI, LTD.
    Inventors: Yuko MATSUI, Hiroshi KAWANO, Shigeo HOMMA, Masayuki YAMAMOTO
  • Publication number: 20140238207
    Abstract: A strip adhesive tape except for a portion on a notch of a wafer W is cut by contacting a cutter of a first cutting mechanism along an outer periphery of the wafer. The adhesive tape cut out into a wafer shape is reeled and collected while being separated. Thereafter, the wafer with the adhesive tape is transported to a second cutting mechanism. The second cutting mechanism cuts out the portion of the adhesive tape on the notch with a cutter having the same shape as that of the notch.
    Type: Application
    Filed: January 15, 2014
    Publication date: August 28, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yasuji Kaneshima, Naoki Ishii, Masayuki Yamamoto
  • Publication number: 20140239989
    Abstract: A semiconductor device is capable of detecting a power supply voltage abnormality without degrading the performance of internal circuits. The semiconductor device includes a plurality of power supply inspection circuits and a result storage register. The power supply inspection circuits detect a power supply voltage abnormality in each pad that couples an internal wiring disposed in the semiconductor device to another part disposed outside of the semiconductor device. The result storage register stores inspection results indicated by result signals output from the power supply inspection circuits.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: Renesas Electronics Corporation
    Inventor: Masayuki YAMAMOTO
  • Patent number: 8812779
    Abstract: A pool that is a storage area group composed of a plurality of real pages based on a plurality of RAID groups is managed. The storage system carries out the rebuild processing that includes the steps of copying each of data that has been stored into all allocated real pages among all real pages based on a specific RAID group to an unallocated real page based on at least one RAID group separate from the specific RAID group, allocating a real page of each copy destination to each virtual page of an allocated destination of an allocated real page of each copy source, and canceling an allocation of an allocated real page of each copy source to a virtual page.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: August 19, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiaki Eguchi, Masayuki Yamamoto
  • Patent number: 8806657
    Abstract: The storage system includes a host computer; a management computer coupled to the host computer; a first storage device coupled to the host computer and the management computer, and including first port management information; and a second storage device coupled to the host computer, the management computer and the first storage device, and including second port management information. The first port management information and the second port management information include an identifier of a port on each storage device, an identifier of a volume in each storage device, an access restriction and an identifier of a port permitted access from the host computer to each storage device.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: August 12, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Mimatsu, Kenichi Shimooka, Masayuki Yamamoto
  • Patent number: 8806170
    Abstract: For a storage apparatus where flash memory disks and hard disks coexist, high-density mounting of flash memory modules is achieved. The storage apparatus includes flash memories and a storage controller. A second storage apparatus including magnetic disks is connected to the storage apparatus. The storage controller can form a storage area using a flash memory or a magnetic disk to create a logical volume. When an input/output request is issued from a host computer, if a storage area is formed with a flash memory, the storage controller directly accesses the flash memory to handle the request. When the storage apparatus defines a storage area formed with a flash memory, the storage apparatus defines the storage area by adding up the capacity of a storage area to be provided for the host computer and a substitute area capacity determined in consideration of restrictions on the number deletions of the flash memory.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Hitachi Ltd.
    Inventors: Masayuki Yamamoto, Akira Yamamoto, Akira Fujibayashi, Jun Kitahara, Yoshiki Kano
  • Patent number: 8806156
    Abstract: A storage system comprises a plurality of flash packages comprising a plurality of flash chips, and a storage controller for receiving a first write request from a higher-level apparatus and sending a second write request of write data based on data conforming to this first write request to a write-destination flash package, and demonstrates a capacity virtualization function for causing a storage capacity to appear larger than an actual storage capacity for the higher-level apparatus, and for configuring a storage space using page units. The storage system generates a second VOL (logical volume) based on a first VOL, manages a plurality of VOLs comprising the first VOL and one or more second VOLs generated based on the first VOL as a VOL group, and allocates the same page to areas of the same address of the plurality of VOLs configuring the VOL group.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 12, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Masayuki Yamamoto
  • Patent number: 8799525
    Abstract: A computer system including a management computer for managing the entire system, an integral apparatus, and a high-level connecting device for connecting the management computer and the integral apparatus is designed so that the management computer retains integral apparatus internal configuration information, configuration information about an integral apparatus to be introduced, that indicates the configuration of the integral apparatus that may possibly be introduced to the system, and lifetime information indicating lifetime of the integral apparatus; obtains connectivity guarantee information indicating whether connectivity between the computer and the storage apparatus is guaranteed or not; selects an integral apparatus to be removed from the system by referring to the lifetime information; selects an integral apparatus to be introduced to the system by referring to the integral apparatus internal configuration information, the configuration information about the integral apparatus to be introduced, an
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: August 5, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yasunori Kaneda, Yutaka Kudo, Yukio Ogawa, Masakatsu Mori, Tomoki Sekiguchi, Masayuki Yamamoto, Naoto Matsunami
  • Publication number: 20140192022
    Abstract: A proximity detection unit detects the proximity of a finger to a screen and outputs a proximity detection signal. A contact detection unit detects the contact of the finger to the screen and outputs a contact detection signal. On the basis of the proximity detection signal, a display control unit magnifies and displays a predetermined range around a proximity corresponding position. On the basis of the contact detection signal depending on the contact operation of the indicator for the predetermined range, the display control unit fixes the magnified display of the predetermined range and does not change the display position of the magnified predetermined range depending on the movement operation of the finger on the screen.
    Type: Application
    Filed: May 16, 2013
    Publication date: July 10, 2014
    Applicant: PANASONIC CORPORATION
    Inventor: Masayuki Yamamoto