Patents by Inventor Takashi Kaga

Takashi Kaga 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: 11446786
    Abstract: An object is to enable accurate machining by enabling shots to be accurately blasted on a workpiece even while workpiece is being deformed. A part manufacturing system includes: a peening device including a nozzle that projects a plurality of shots toward a workpiece, and a sensor that detects a distance to the workpiece; and a machining robot including a hand to which the peening device is attached, and a control unit that adjusts a position or an orientation of the peening device by controlling the hand based on the distance detected by the sensor.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 20, 2022
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., SINTOKOGIO, LTD.
    Inventors: Takashi Kozaki, Kosuke Akanuma, Hideaki Kaga, Kyoichi Iwata, Seiya Ikeda
  • Publication number: 20220221655
    Abstract: Reversible optical connectors, and associated devices and methods are provided. In one embodiment, a connector for a communication cable includes a housing comprising a cavity, and a first plug and a second plug coupled to a distal portion of the housing. The first and second plugs are connected to the housing such that the first and second plugs are independently rotatable with respect to the housing. The connector further includes a latch actuator coupled to the housing and configured to disengage one or more latches from an outlet. By rotating the plugs 180 degrees and turning the connector over, the relative arrangement or position of the two plugs can be switched or reversed. The plugs can be rotated or reversed without completely disassembling the connector, in some embodiments. Accordingly, embodiments of the present disclosure can improve workflows for a user or operator that in a high-density networking setting.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Inventors: Akihito Ishikawa, Tomoaki Kaga, Takashi Sato
  • Patent number: 10824566
    Abstract: In a storage device according to the present invention, controllers each having a cache memory manage duplication of cache data. A storage device SD includes multiple controllers 1 each including a cache memory, and multiple storing units 21 used by the controllers and configured with logical volume 24 for being provided to a higher-level device 3. Each of the controllers, in a case where a paired destination controller forming a duplication pair is blocked, selects a new paired destination controller for each logical volume, forwards the cache data stored in the cache memory included in the own controller to the new paired destination controller, and stores the cache data in a cache memory included in the new paired destination controller to duplicate the cache data.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: November 3, 2020
    Assignee: HITACHI, LTD.
    Inventors: Takashi Kaga, Tomohiro Nishimoto
  • Publication number: 20190050337
    Abstract: In a storage device according to the present invention, controllers each having a cache memory manage duplication of cache data. A storage device SD includes multiple controllers 1 each including a cache memory, and multiple storing units 21 used by the controllers and configured with logical volume 24 for being provided to a higher-level device 3. Each of the controllers, in a case where a paired destination controller forming a duplication pair is blocked, selects a new paired destination controller for each logical volume, forwards the cache data stored in the cache memory included in the own controller to the new paired destination controller, and stores the cache data in a cache memory included in the new paired destination controller to duplicate the cache data.
    Type: Application
    Filed: July 11, 2016
    Publication date: February 14, 2019
    Inventors: Takashi KAGA, Tomohiro NISHIMOTO
  • Patent number: 9058305
    Abstract: A remote copy system includes: a first storage system having a first logical volume accompanied with a first plurality of disk drives in the first storage system; a second storage system having a second logical volume, which is a virtual volume not accompanied with a second plurality of disk drives in the second storage system, the virtual volume configuring a first remote copy pair with the first logical volume; and a third storage system having a third logical volume accompanied with a third plurality of disk drives in the third storage system, the third logical volume configuring a second remote copy pair with the virtual volume and storing a copied data of data stored in the first logical volume. If the second storage system receives write data sent from the first storage system to the virtual volume, the second storage system transfers the write data to the third logical volume.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: June 16, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga, Hiroshi Arakawa, Takahiko Takeda, Takao Sato
  • Publication number: 20140122635
    Abstract: A computer system comprises a computer, a storage system comprising multiple storage apparatuses, and an edge storage apparatus.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: HITACHI, LTD.
    Inventors: Takashi Kaga, Hisao Honma
  • Publication number: 20120290787
    Abstract: A remote copy system includes: a first storage system having a first logical volume accompanied with a first plurality of disk drives in the first storage system; a second storage system having a second logical volume, which is a virtual volume not accompanied with a second plurality of disk drives in the second storage system, the virtual volume configuring a first remote copy pair with the first logical volume; and a third storage system having a third logical volume accompanied with a third plurality of disk drives in the third storage system, the third logical volume configuring a second remote copy pair with the virtual volume and storing a copied data of data stored in the first logical volume. If the second storage system receives write data sent from the first storage system to the virtual volume, the second storage system transfers the write data to the third logical volume.
    Type: Application
    Filed: June 28, 2012
    Publication date: November 15, 2012
    Applicant: HITACHI, LTD.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga, Hiroshi Arakawa, Takahiko Takeda, Takao Sato
  • Patent number: 8234471
    Abstract: A remote copy system includes: a first storage system having a first logical volume accompanied with a first plurality of disk drives in the first storage system; a second storage system having a second logical volume, which is a virtual volume not accompanied with a second plurality of disk drives in the second storage system, the virtual volume configuring a first remote copy pair with the first logical volume; and a third storage system having a third logical volume accompanied with a third plurality of disk drives in the third storage system, the third logical volume configuring a second remote copy pair with the virtual volume and storing a copied data of data stored in the first logical volume. If the second storage system receives write data sent from the first storage system to the virtual volume, the second storage system transfers the write data to the third logical volume in the third storage system.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: July 31, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga, Hiroshi Arakawa, Takahiko Takeda, Takao Sato
  • Patent number: 8117419
    Abstract: A storage apparatus provides, in a dynamic provisioning system, a virtual logical device (DP-LDEV) that is a virtual logical device configured of a real logical device (N-LDEV). In the storage apparatus, a storage area of a real logical device is managed by being divided into unit cache areas (SLCBs), which are predetermined management units. A storage area of a virtual logical device is managed by being divided into virtual unit areas (PSCBs), which are predetermined management units. Multiple virtual unit areas having the same data stored therein are made to correspond to the same unit cache area, and thereby data stored in a storage device is managed. The correspondence is established with at the timing of, for example, destaging data from a cache memory.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: February 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Kaga, Yoshihiro Asaka
  • Publication number: 20100262777
    Abstract: A storage apparatus 10 provides, in a dynamic provisioning system, a virtual logical device (DP-LDEV 203) that is a virtual logical device configured of a real logical device (N-LDEV 201). In the storage apparatus 10, a storage area of a real logical device is managed by being divided into unit cache areas (SLCBs), which are predetermined management units. A storage area of a virtual logical device is managed by being divided into virtual unit areas (PSCBs), which are predetermined management units. Multiple virtual unit areas having the same data stored therein are made to correspond to the same unit cache area, and thereby data stored in a storage device 15 is managed. The correspondence is established with at the timing of, for example, destaging data from a cache memory 13.
    Type: Application
    Filed: February 4, 2009
    Publication date: October 14, 2010
    Inventors: Takashi Kaga, Yoshihiro Asaka
  • Publication number: 20100199038
    Abstract: In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the storage systems. A remote copy system includes first storage system that sends and receives data to and from an information processing apparatus, a second storage system, and a third storage system. The second storage system virtually has a second storage area in which the data should be written and has a third storage area in which the data written in the second storage area and update information concerning the data are written. Data sent from the first storage system is not written in the second storage area but is written in the third storage area as data and update information. The data and the update information written in the third storage area are read out from the third storage system.
    Type: Application
    Filed: September 30, 2009
    Publication date: August 5, 2010
    Applicant: HITACHI, LTD.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga, Hiroshi Arakawa, Takahiko Takeda, Takao Sato
  • Publication number: 20090327629
    Abstract: In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the storage systems. A remote copy system includes first storage system that sends and receives data to and from an information processing apparatus, a second storage system, and a third storage system. The second storage system virtually has a second storage area in which the data should be written and has a third storage area in which the data written in the second storage area and update information concerning the data are written. Data sent from the first storage system is not written in the second storage area but is written in the third storage area as data and update information. The data and the update information written in the third storage area are read out from the third storage system.
    Type: Application
    Filed: May 15, 2009
    Publication date: December 31, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Ryusuke ITO, Yusuke HIRAKAWA, Yoshihiro ASAKA, Takashi KAGA
  • Patent number: 7373455
    Abstract: Method and apparatus for using the storage resources of a storage system effectively, thereby reducing the cost of the storage system and improving its usability. The storage system includes a first storage apparatus and a second storage apparatus. When a host writes data to a virtual volume, the data are written into a pool area. A management table associates an address in the virtual volume with a pointer indicating the data stored in the pool area. The usage amount of the pool area is monitored. When the usage amount of the pool area reaches a predetermined value, a search for available capacity is performed. An unused external volume is detected and associated with an externally connected volume. The data stored in the pool area are then copied to the externally connected volume.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: May 13, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Yutaka Watanabe, Masanobu Yamamoto, Takashi Kaga
  • Publication number: 20080098188
    Abstract: In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the storage systems. A remote copy system includes first storage system that sends and receives data to and from an information processing apparatus, a second storage system, and a third storage system. The second storage system virtually has a second storage area in which the data should be written and has a third storage area in which the data written in the second storage area and update information concerning the data are written. Data sent from the first storage system is not written in the second storage area but is written in the third storage area as data and update information. The data and the update information written in the third storage area are read out from the third storage system.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga
  • Patent number: 7284103
    Abstract: A data copy method for a disk sub system that is equipped with a first storage apparatus including a first logic storage apparatus divided into a first region and a second region and a second storage apparatus including a second logic storage apparatus divided into a first region and a second region, the first logic storage apparatus and the second logic storage apparatus connecting to a host apparatus, wherein data on the first logic storage apparatus is copied to the second logic storage apparatus by an instruction from the host apparatus.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: October 16, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Kaga, Kouji Arai, Haruaki Watanabe
  • Publication number: 20070055704
    Abstract: The present invention uses the storage resources of a storage system effectively, thereby reducing the cost of the storage system and improving its usability. The storage system comprises a first storage apparatus and a second storage apparatus. When a host writes data to a virtual volume, the data are written into a pool area. A management table associates an address in the virtual volume with a pointer indicating the data stored in the pool area. The usage amount of the pool area is monitored. When the usage amount of the pool area reaches a predetermined value, a search for available capacity is performed. An unused external volume is detected and associated with an externally connected volume. The data stored in the pool area are then copied to the externally connected volume.
    Type: Application
    Filed: October 26, 2005
    Publication date: March 8, 2007
    Inventors: Yutaka Watanabe, Masanobu Yamamoto, Takashi Kaga
  • Publication number: 20050235121
    Abstract: In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the storage systems. A remote copy system includes first storage system that sends and receives data to and from an information processing apparatus, a second storage system, and a third storage system. The second storage system virtually has a second storage area in which the data should be written and has a third storage area in which the data written in the second storage area and update information concerning the data are written. Data sent from the first storage system is not written in the second storage area but is written in the third storage area as data and update information. The data and the update information written in the third storage area are read out from the third storage system.
    Type: Application
    Filed: June 18, 2004
    Publication date: October 20, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Ryusuke Ito, Yusuke Hirakawa, Yoshihiro Asaka, Takashi Kaga
  • Patent number: 6914366
    Abstract: In the exposing apparatus of an image forming apparatus or the like, an apparatus for suppressing the vibration of an optical part has a detector for detecting the vibrating state of the optical part, and a controller for controlling a vibrator so as to give the optical part such an appropriate amount of vibration as will negate the vibration of the optical part. Thereby, it becomes unnecessary to excessively increase the rigidity of the optical part and thus, a decrease in weight can be achieved.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: July 5, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Kaga, Naohisa Kumagai
  • Publication number: 20030101318
    Abstract: A data copy method for a disk sub system that is equipped with a first storage apparatus including a first logic storage apparatus divided into a first region and a second region and a second storage apparatus including a second logic storage apparatus divided into a first region and a second region, the first logic storage apparatus and the second logic storage apparatus connecting to a host apparatus, wherein data on the first logic storage apparatus is copied to the second logic storage apparatus by an instruction from the host apparatus.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 29, 2003
    Applicant: HITACHI, LTD.
    Inventors: Takashi Kaga, Kouji Arai, Haruaki Watanabe
  • Publication number: 20030042822
    Abstract: In the exposing apparatus of an image forming apparatus or the like, an apparatus for suppressing the vibration of an optical part has a detector for detecting the vibrating state of the optical part, and a controller for controlling a vibrator so as to give the optical part such an appropriate amount of vibration as will negate the vibration of the optical part. Thereby, it becomes unnecessary to excessively increase the rigidity of the optical part and thus, a decrease in weight can be achieved.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 6, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takashi Kaga, Naohisa Kumagai