Patents by Inventor Takao Satoh

Takao Satoh 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).

  • Publication number: 20200161525
    Abstract: [Object] To provide a thermoelectric material that reduces, when a thermoelectric conversion module is formed therefrom, contact resistance with an electrode and will not be peeled; the thermoelectric conversion module using the thermoelectric material; a method of producing the same, and a Peltier device. [Solving Means] A thermoelectric material according to the present invention includes a thermoelectric substance and a solvent, and the solvent has a vapor pressure of 0 Pa or more and 1.5 Pa or less at 25° C., has a storage elastic modulus G? a range of 1×101 Pa or more and 4×106 Pa or less, and has a loss elastic modulus G? in a range of 5 Pa or more and 4×106 Pa or less.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 21, 2020
    Inventors: Norifusa SATOH, Takao MORI, Masaji OTSUKA
  • Patent number: 8898383
    Abstract: A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: November 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yasutomo Yamamoto, Akira Yamamoto, Takao Satoh
  • Publication number: 20120191659
    Abstract: When plural copy groups including pairs exist, remote copying for pairs belonging to copy groups is suspended selectively on a copy group-to-copy group basis, instead of suspending remote copying in all the copy groups at once. A computer system has a host computer, plural first storage systems comprising plural first logical disks, and plural second storage systems comprising plural second logical disks. A first logical disk and a second logical disk paired with the first logical disk, and each pair belongs to either a first copy group or a second copy group. To selectively suspend remote copying on a copy group-to-copy group basis, one of the copy groups is specified first and then pairs belonging to this copy group are designated. The first storage systems comprising first logical disks of the designated pairs suspend remote copy processing for the designated pairs.
    Type: Application
    Filed: March 23, 2012
    Publication date: July 26, 2012
    Inventors: Takashige IWAMURA, Masamitsu TAKAHASHI, Takao SATOH, Nobuhiro MAKI
  • Patent number: 8161009
    Abstract: When plural copy groups including pairs exist, remote copying for pairs belonging to copy groups is suspended selectively on a copy group-to-copy group basis, instead of suspending remote copying in all the copy groups at once. A computer system has a host computer, plural first storage systems comprising plural first logical disks, and plural second storage systems comprising plural second logical disks. A first logical disk and a second logical disk paired with the first logical disk, and each pair belongs to either a first copy group or a second copy group. To selectively suspend remote copying on a copy group-to-copy group basis, one of the copy groups is specified first and then pairs belonging to this copy group are designated. The first storage systems comprising first logical disks of the designated pairs suspend remote copy processing for the designated pairs.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: April 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Takashige Iwamura, Masamitsu Takahashi, Takao Satoh, Nobuhiro Maki
  • Publication number: 20120005447
    Abstract: A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 5, 2012
    Applicant: HITACHI, LTD.
    Inventors: Yasutomo Yamamoto, Akira Yamamoto, Takao Satoh
  • Patent number: 8032733
    Abstract: A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: October 4, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasutomo Yamamoto, Akira Yamamoto, Takao Satoh
  • Patent number: 7870423
    Abstract: The invention is a copy processing technique in a data processing system, which can simultaneously achieve long-distance communication and no data loss when disaster occurs. Among a production site, a local site, and a remote site, long-distance remote copying from a disk array device at the production site to a disk array device at the remote site without data loss is achieved via a disk array device at the local site in combination with synchronous remote copying and asynchronous remote copying. Also, in the disk array devices at the local site and the remote site, copying is performed through a replica function. Even if the production site is affected by disaster, tasks can be continued at the local site having the same data as that of the production site and at the remote site a long distance away from the production site.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: January 11, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Koji Ozawa, Takao Satoh
  • Patent number: 7861034
    Abstract: A storage system stores multiple copies of data on physical storage implemented, for example, with multiple disk units. Input/output read requests are received from host systems and distributed in a manner that allows parallel read operations to be conducted over the multiple disk units of the physical storage.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: December 28, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamamoto, Takao Satoh, Shigeo Honma, Yoshihiro Asaka, Yoshiaki Kuwahara, Hiroyuki Kitajima
  • Patent number: 7725611
    Abstract: A method for verifying data in a storage system is disclosed. A host computer transmits area management data to a storage controller. The area management data specifies a range of a storage area in a storage device to be used by an application program having a mechanism for verifying data suitability. Upon receipt of an input/output request transmitted from the host computer, the storage controller performs verification, which is usually performed by the application program, of the data that is to be processed according to the data input/output request and to be input/output to/from the storage area, which is specified in accordance with the received area management data.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: May 25, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Kazunobu Ohashi, Takao Satoh, Kiichiro Urabe, Toshio Nakano, Shizuo Yokohata
  • Publication number: 20100017574
    Abstract: The present invention provides a storage system and a method of controlling the storage system, in which a second site rapidly resumes system process when a first site is damaged. The storage system comprises a first site including a first storage device, a second site including a second storage device, and a third site including a third storage device, and the method of controlling the storage system comprises a step of making a logical volume of the second storage device consistent with a logical volume of the first storage device by remotely copying only the differential data between the logical volume of the first storage device and the logical volume of the second storage device from a logical volume of the third storage device to the logical volume of the second storage device when the first site is damaged.
    Type: Application
    Filed: September 25, 2009
    Publication date: January 21, 2010
    Applicant: HITACHI, LTD.
    Inventors: Masamitsu Takahashi, Takao Satoh, Koji Ozawa
  • Patent number: 7623854
    Abstract: An information addition system acquires data and a control signal from a hands-free apparatus and a navigation apparatus. The hands-free apparatus is connected to a mobile communication terminal and includes an address-book data storage unit that associates communication-partner information of the mobile communication terminal with name information and stores the associated information in a personal information database as first personal information.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: November 24, 2009
    Assignee: Alpine Electronics, Inc.
    Inventor: Takao Satoh
  • Publication number: 20090276569
    Abstract: A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: HITACHI, LTD.
    Inventors: Yasutomo Yamamoto, Akira Yamamoto, Takao Satoh
  • Patent number: 7594076
    Abstract: The disk array apparatus has a source volume that is the source for data migration, and migrates the data to a destination volume that is the destination for the data migration. The disk array apparatus includes: an access frequency calculator for calculating the frequency of access to the source volume for each time period of a certain length of time going back from a data migration termination date and time when the data migration termination date and time is designated externally; an estimated data migration amount calculator for calculating the estimated data migration amount for each time period based on the access frequency calculated by the access frequency calculator; and a data migration start date and time calculator for calculating the data migration start date and time based on the estimated data migration amount calculated by the estimated data migration amount calculator.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: September 22, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Tsumagari, Haruaki Watanabe, Takao Satoh
  • Patent number: 7577815
    Abstract: A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: August 18, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Yasutomo Yamamoto, Akira Yamamoto, Takao Satoh
  • Patent number: 7460664
    Abstract: In a system having a handsfree function to answer an incoming call handsfree and another function, when an incoming call arrives, a handsfree unit informs a user about an arrival of the incoming call and sets a user operation invalid state in which any user operation is made invalid during a predetermined period. The handsfree unit regards a user operation performed after the predetermined period passes as an operation for the incoming call, and performs incoming call answering processing corresponding to the user operation. When a user operation is performed in the user operation invalid state, the handsfree unit causes the user operation to be invalid.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: December 2, 2008
    Assignee: Alpine Electronics, Inc.
    Inventor: Takao Satoh
  • Publication number: 20080288829
    Abstract: A method for verifying data in a storage system is disclosed. A host computer transmits area management data to a storage controller. The area management data specifies a range of a storage area in a storage device to be used by an application program having a mechanism for verifying data suitability. Upon receipt of an input/output request transmitted from the host computer, the storage controller performs verification, which is usually performed by the application program, of the data that is to be processed according to the data input/output request and to be input/output to/from the storage area, which is specified in accordance with the received area management data.
    Type: Application
    Filed: July 15, 2008
    Publication date: November 20, 2008
    Inventors: Kazunobu OHASHI, Takao Satoh, Kiichiro Urabe, Toshio Nakano, Shizuo Yokohata
  • Patent number: 7447840
    Abstract: When a bus is used as a data communication channel, data within a disk unit cannot be reproduced or copied into a spare disk while a control unit is making read/write processing based on a request from a host computer, or vice versa. Thus, a loop is constructed by a fiber channel capable of time division multiplex function, and the processing between the disk unit and the spare is performed not through the control unit so that the data within the disk can be copied into the spare while the processing between the host computer and the disk unit is being performed, or both processing operations can be executed in parallel.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: November 4, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Seiichi Higaki, Yoshinori Okami, Takao Satoh
  • Publication number: 20080178041
    Abstract: The invention is a copy processing technique in a data processing system, which can simultaneously achieve long-distance communication and no data loss when disaster occurs. Among a production site, a local site, and a remote site, long-distance remote copying from a disk array device at the production site to a disk array device at the remote site without data loss is achieved via a disk array device at the local site in combination with synchronous remote copying and asynchronous remote copying. Also, in the disk array devices at the local site and the remote site, copying is performed through a replica function. Even if the production site is affected by disaster, tasks can be continued at the local site having the same data as that of the production site and at the remote site a long distance away from the production site.
    Type: Application
    Filed: March 25, 2008
    Publication date: July 24, 2008
    Inventors: Masamitsu Takahashi, Koji Ozawa, Takao Satoh
  • Patent number: 7370228
    Abstract: The invention is a copy processing technique in a data processing system, which can simultaneously achieve long-distance communication and no data loss when disaster occurs. Among a production site, a local site, and a remote site, long-distance remote copying from a disk array device at the production site to a disk array device at the remote site without data loss is achieved via a disk array device at the local site in combination with synchronous remote copying and asynchronous remote copying. Also, in the disk array devices at the local site and the remote site, copying is performed through a replica function. Even if the production site is affected by disaster, tasks can be continued at the local site having the same data as that of the production site and at the remote site a long distance away from the production site.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: May 6, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Koji Ozawa, Takao Satoh
  • Publication number: 20080052479
    Abstract: The present invention provides a storage system and a method of controlling the storage system, in which a second site rapidly resumes system process when a first site is damaged. The storage system comprises a first site including a first storage device, a second site including a second storage device, and a third site including a third storage device, and the method of controlling the storage system comprises a step of making a logical volume of the second storage device consistent with a logical volume of the first storage device by remotely copying only the differential data between the logical volume of the first storage device and the logical volume of the second storage device from a logical volume of the third storage device to the logical volume of the second storage device when the first site is damaged.
    Type: Application
    Filed: October 16, 2007
    Publication date: February 28, 2008
    Inventors: Masamitsu Takahashi, Takao Satoh, Koji Ozawa