Patents by Inventor Masamitsu Takahashi

Masamitsu Takahashi 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: 9075542
    Abstract: A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The storage system comprises an IO transmission-reception unit 1320a that communicates with a management computer 100, a host computer 200, and a storage system 300b and a processor 1310a that causes the IO transmission-reception unit 1320a to perform transmission to the management computer 100 and storage system 300b by using an identifier of the storage system 300a as an identifier indicating a representative logical storage system that is one predetermined logical storage system from among a plurality of the logical storage system when the storage system operates as a plurality of the logical storage systems.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: July 7, 2015
    Assignee: HITACHI, LTD.
    Inventors: Nobuhiro Maki, Masamitsu Takahashi, Nobuyuki Osaki
  • Publication number: 20150177675
    Abstract: A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 25, 2015
    Inventors: Mayu Wakamatsu, Hiroshige Hiramatsu, Yoshiyuki Okazaki, Masamitsu Takahashi, Takamasa Tsukada
  • Publication number: 20150160870
    Abstract: A storage apparatus includes: a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of.
    Type: Application
    Filed: January 11, 2013
    Publication date: June 11, 2015
    Applicant: HITACHI, LTD.
    Inventors: Ken Matsuda, Yutaka Tanaka, Masamitsu Takahashi
  • Patent number: 9052827
    Abstract: A storage apparatus includes: a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 9, 2015
    Assignee: HITACHI, LTD.
    Inventors: Ken Matsuda, Yutaka Tanaka, Masamitsu Takahashi
  • Patent number: 9041942
    Abstract: An image forming apparatus includes: an applying device configured to generate an output signal and apply the output signal to an image forming device; and a controller configured to generate a control signal to supply to the applying device so as to control a value of the output signal so that the value of the output signal is within a predetermined target range and control the applying device using the control signal in a start-up mode and in a normal mode, the normal mode being subsequent to the start-up mode. In the start-up mode, the controller sets a start control signal value larger than a value of the control signal immediately after a first predetermined time, the start control signal value being the value of the control signal during the first predetermined time, the first predetermined time being from a start timing of the start-up mode.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: May 26, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Takahashi, Katsumi Inukai
  • Patent number: 8971736
    Abstract: A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Mayu Wakamatsu, Hiroshige Hiramatsu, Yoshiyuki Okazaki, Masamitsu Takahashi, Takamasa Tsukada
  • Patent number: 8788771
    Abstract: Provided is a remote copy system capable of guaranteeing the time ordering of data to be handled by a remote site even when the tasks at the remote site are operated across a plurality of storages or a plurality of volume groups. A consistency group consisting of a secondary journal volume and a replica is associated with a journal group consisting of a primary data volume, a primary journal volume, a secondary journal volume, and a secondary data volume. Upon backing up a secondary data volume and forming a replica, the host system issues a backup time reservation command to a storage apparatus, and the storage apparatus creates a replica by comparing the time stamp added to the journal data and the backup reservation time.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: July 22, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Toru Suzuki
  • Patent number: 8745006
    Abstract: This invention provides a computing system in which multiple remote copy destination sites exist and, even if a failure occurs in a copy source volume in a remote copy source site, it becomes possible in at least one remote copy destination site to establish backup in which data must be determined at a certain point in time. The computing system of this invention is characterized by, before the in-storage copy function performing in storage copy in the remote copy source site, setting the pair status of the remote copy destination volume in at least one storage system in multiple remote copy destination storage systems and the remote copy source volume to the mode for terminating remote copy and, after the in-storage copy is completed, changing the above-mentioned pair status to the mode for starting remote copy.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: June 3, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Hiwatashi, Masamitsu Takahashi, Atsushi Yuhara
  • Publication number: 20140136781
    Abstract: A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The storage system comprises an IO transmission-reception unit 1320a that communicates with a management computer 100, a host computer 200, and a storage system 300b and a processor 1310a that causes the IO transmission-reception unit 1320a to perform transmission to the management computer 100 and storage system 300b by using an identifier of the storage system 300a as an identifier indicating a representative logical storage system that is one predetermined logical storage system from among a plurality of the logical storage system when the storage system operates as a plurality of the logical storage systems.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: HITACHI, LTD.
    Inventors: Nobuhiro MAKI, Masamitsu TAKAHASHI, Nobuyuki OSAKI
  • Patent number: 8661212
    Abstract: A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The storage system comprises an IO transmission-reception unit 1320a that communicates with a management computer 100, a host computer 200, and a storage system 300b and a processor 1310a that causes the IO transmission-reception unit 1320a to perform transmission to the management computer 100 and storage system 300b by using an identifier of the storage system 300a as an identifier indicating a representative logical storage system that is one predetermined logical storage system from among a plurality of the logical storage system when the storage system operates as a plurality of the logical storage systems.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: February 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Nobuhiro Maki, Masamitsu Takahashi, Nobuyuki Osaki
  • Publication number: 20130223859
    Abstract: A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 29, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Mayu Wakamatsu, Hiroshige Hiramatsu, Yoshiyuki Okazaki, Masamitsu Takahashi, Takamasa Tsukada
  • Patent number: 8503896
    Abstract: An image formation device for forming an image on a print medium by an electrophotographic process comprises a photosensitive body on which a developer image to be transferred to the print medium is formed by the electrophotographic process including charging of the photosensitive body, a charging unit which includes a charging wire and a grid and thereby electrically charges the photosensitive body, a charging power unit which applies wire potential to the charging wire, a wire potential measuring unit which measures the wire potential, and a charging control unit which controls the amount of electric charge supplied from the charging unit to the photosensitive body by controlling the wire potential based on the wire potential measured by the wire potential measurement unit. The charging control unit includes a control range restricting unit which restricts a control range of the wire potential within a prescribed electric potential.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: August 6, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Katsumi Inukai, Masamitsu Takahashi
  • Patent number: 8495014
    Abstract: Before starting asynchronous remote copy in the multihop method (asynchronous remote copy from the first to the second storage apparatus, and from the second to the third storage apparatus), the first initial copy which is the copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy which is the copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent are performed. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: July 23, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Katsuhiro Okumoto
  • Patent number: 8431632
    Abstract: The invention provides a crayon which comprises an alternative plasticizer in place of the conventional phthalate ester plasticizers and yet provides writings excellent in water resistance, the crayon comprising a colorant, a gelling agent, an organic solvent, a resin component, and a plasticizer, wherein the plasticizer is at least one selected from diisononyl adipate, acetyltributyl citrate, 1,2-cyclohexanedicarboxylic acid diisononyl, and alkylsulfonic acid phenyl ester and is contained in an amount of 1 to 20% by weight based on the crayon.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 30, 2013
    Assignee: Sakura Color Products Corporation
    Inventors: Kotaro Sumitomo, Masamitsu Takahashi, Hidetoshi Fukuo
  • Publication number: 20120311283
    Abstract: Before starting asynchronous remote copy in the multihop method (asynchronous remote copy from the first to the second storage apparatus, and from the second to the third storage apparatus), the first initial copy which is the copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy which is the copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent are performed. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus.
    Type: Application
    Filed: August 13, 2012
    Publication date: December 6, 2012
    Applicant: HITACHI, LTD.
    Inventors: Masamitsu TAKAHASHI, Katsuhiro OKUMOTO
  • Patent number: 8299143
    Abstract: The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: dissolving and dispersing a resin component and carbon black having a pH of not less than 5.0 in an organic solvent, dissolving at least one gelling agent selected from the group consisting of dibenzylidene sorbitol, tribenzylidene sorbitol and derivatives thereof in the resultant under heating to prepare a raw material solution, pouring the raw material solution into a molding container, and cooling and gelling the raw material solution.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: October 30, 2012
    Assignee: Sakura Color Products Corporation
    Inventors: Kotaro Sumitomo, Masamitsu Takahashi, Hidetoshi Fukuo
  • Patent number: 8295724
    Abstract: An image forming apparatus can include an image carrier, a transfer device, and an applying circuit, and a controller. The image carrier carries a developer image developed by developer. The transfer device transfers the developer image to a recording media. The applying circuit has an active device and applies a transfer bias voltage to the transfer device. The controller controls the applying circuit with a predetermined control signal during a start-up mode of the applying circuit and during a normal mode of the applying circuit. The normal mode is subsequent to the start-up mode. During the start-up mode of the applying circuit, the controller controls a value (a duty ratio) of the control signal (a PWM signal) with gradual increase and with interposing an interval period (?2) between the gradual increase. A value of the control signal in the interval period does not activate the active device.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: October 23, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masamitsu Takahashi
  • Patent number: 8270861
    Abstract: An image forming apparatus including a photosensitive body, a charger configured to charge the photosensitive body, an exposure unit configured to expose the photosensitive body charged by the charger, a developer transport section configured to cause relative movement with respect to the photosensitive body for transporting developer therebetween, a current measurement section configured to measure a current flowing between the photosensitive body and the developer transport section, and a determination unit configured to compare a current with a threshold, the current measured by the current measurement section when the photosensitive body and the developer transport section move relatively to each other and a first area of the photosensitive body that needs to be exposed faces the developer transport section, and determine whether an exposure of the photosensitive body is proper based on a result of the comparison.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: September 18, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Takahashi, Hiroyuki Naganawa
  • Patent number: 8271438
    Abstract: Before starting asynchronous remote copy in the multihop method (asynchronous remote copy from the first to the second storage apparatus to the third storage apparatus), a first and a second initial copy are performed. The first initial copy is a copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy is a copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: September 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Katsuhiro Okumoto
  • Publication number: 20120221814
    Abstract: Provided is a remote copy system capable of guaranteeing the time ordering of data to be handled by a remote site even when the tasks at the remote site are operated across a plurality of storages or a plurality of volume groups. A consistency group consisting of a secondary journal volume and a replica is associated with a journal group consisting of a primary data volume, a primary journal volume, a secondary journal volume, and a secondary data volume. Upon backing up a secondary data volume and forming a replica, the host system issues a backup time reservation command to a storage apparatus, and the storage apparatus creates a replica by comparing the time stamp added to the journal data and the backup reservation time.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 30, 2012
    Inventors: MASAMITSU TAKAHASHI, TORU SUZUKI