Patents by Inventor Naoko Kumagai

Naoko Kumagai 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: 10168945
    Abstract: A storage apparatus includes: first storage devices; second storage devices that are lower in performance than the first storage devices; and a controller coupled to an external storage apparatus including third storage devices that are lower in reliability than the first storage devices and the second storage devices and coupled to the first storage devices and the second storage devices. The controller controls data migration between the first storage devices and the second storage devices based on an I/O frequency. When the total size of data stored for a predetermined period or more among data stored in the second storage devices is equal to or larger than a predetermined size threshold, the controller transmits the data stored in the second storage devices for the predetermined period or more, to the external storage apparatus.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: January 1, 2019
    Assignee: HITACHI, LTD.
    Inventors: Naoko Kumagai, Norihiko Kawakami
  • Publication number: 20170308321
    Abstract: A storage apparatus includes: first storage devices; second storage devices that are lower in performance than the first storage devices; and a controller coupled to an external storage apparatus including third storage devices that are lower in reliability than the first storage devices and the second storage devices and coupled to the first storage devices and the second storage devices. The controller controls data migration between the first storage devices and the second storage devices based on an I/O frequency. When the total size of data stored for a predetermined period or more among data stored in the second storage devices is equal to or larger than a predetermined size threshold, the controller transmits the data stored in the second storage devices for the predetermined period or more, to the external storage apparatus.
    Type: Application
    Filed: October 29, 2014
    Publication date: October 26, 2017
    Applicant: Hitachi ,Ltd.
    Inventors: Naoko KUMAGAI, Norihiko KAWAKAMI
  • Patent number: 8572319
    Abstract: Conventionally, the fees for using services of a storage system was calculated based on the status of use or access performance of storage areas and not based on migration of data. The present invention provides a storage system in which multiple tiers composed of storage areas of various memory devices are assigned in page units and the assigned tiers are changed based on access frequency, wherein stored costs are calculated based on status of use of the storage areas constituting the tiers, and migration costs are calculated and charged based on the amount of migration of data among tiers and the I/O access counts after migration, according to which appropriate charging of cost for using the storage system is enabled.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: October 29, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Naoko Kumagai, Tsutomu Sukigara, Tetsuya Abe
  • Publication number: 20130080703
    Abstract: Conventionally, the fees for using services of a storage system was calculated based on the status of use or access performance of storage areas and not based on migration of data. The present invention provides a storage system in which multiple tiers composed of storage areas of various memory devices are assigned in page units and the assigned tiers are changed based on access frequency, wherein stored costs are calculated based on status of use of the storage areas constituting the tiers, and migration costs are calculated and charged based on the amount of migration of data among tiers and the I/O access counts after migration, according to which appropriate charging of cost for using the storage system is enabled.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 28, 2013
    Inventors: Naoko Kumagai, Tsutomu Sukigara, Tetsuya Abe
  • Publication number: 20110283062
    Abstract: To enable reduction of the data capacity while inhibiting degradation of read performance. If any of a plurality of host systems issues a request to write duplicate data as objective data which is identical to already stored data, a processor for a disk controller controls a data transfer control unit so that part of the duplicate data will be kept in accordance with a specific rule instead of entirely eliminating writing of the duplicate data.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 17, 2011
    Applicant: HITACHI, LTD.
    Inventors: Naoko Kumagai, Tetsuya Abe, Azuma Kano
  • Patent number: 7865942
    Abstract: A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device. File data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit. A non-open WWW device controls access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: January 4, 2011
    Assignee: Sony Corporation
    Inventors: Atsuhiko Mimura, Naoko Kumagai, Hiroki Kotani
  • Patent number: 7596805
    Abstract: A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device and file data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit, and a non-open WWW device for controlling an access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: September 29, 2009
    Assignee: Sony Corporation
    Inventors: Atsuhiko Mimura, Naoko Kumagai, Hiroki Kotani
  • Patent number: 7159175
    Abstract: The present invention provides a cut-list creation system allowing a cut list to be made and edited automatically through a network at a request made by the user. The cut-list creation system comprises advertisement design terminals, a center server and a network for connecting the terminals to the server. The center server comprises a storage unit for storing video contents created by using an advertisement design terminal and a cut-list creation apparatus for creating template data of a video-content-scene list. The template data is created by extracting selected scenes from a video content stored in the storage unit in a division process carried out on the video content along the time axis. The division process is carried out by an advertisement design terminal by making accesses to the video content.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Sony Corporation
    Inventors: Makoto Ishii, Toshiki Ito, Naoko Kumagai
  • Publication number: 20060265600
    Abstract: A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device and file data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit, and a non-open WWW device for controlling an access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.
    Type: Application
    Filed: August 1, 2006
    Publication date: November 23, 2006
    Inventors: Atsuhiko Mimura, Naoko Kumagai, Hiroki Kotani
  • Patent number: 7103673
    Abstract: An ATM I/F for transmitting data to a data transmission destination via a communication network, a data transmission server, and a data transmission managing device for calculating a network necessary for data transmission on the basis of the data quantity of the data to be transmitted and the transmission completion time indicating the time of completion of data transmission to the data transmission destination are provided. Accounting information is generated on the basis of the calculated network band and transmission time. The data is transmitted to the data transmission destination by using the calculated network band. The data transmission to the data transmission destination is completed by the transmission completion time, and accounting information is generated. Thus, when transmitting data via the communication network, the data transmission completion time is designated in advance for data transmission.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: September 5, 2006
    Assignee: Sony Corporation
    Inventors: Naoko Kumagai, Hiroki Kotani
  • Patent number: 6952804
    Abstract: A video providing device (30) comprises network I/Fs (37), (38) for transmitting/receiving a video to an external network, a high-quality video server (32) for storing the video as a regular editing video, a high-compressed video streamer (35) for storing the video as a rough editing video, a high-compressed video server (31) for reading out and transmitting the rough editing video on the basis of a video transmission request from a production (51) included in the external network (20), and a high-quality video server (32) for extracting and transmitting a part of the regular editing video to a post production (40) on the basis of the result of editing processing from the production (51). Thus, the video providing device (30) receives, for example, a video prepared by the production (51) and supplies a part of the video to the post production (40).
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: October 4, 2005
    Assignee: Sony Corporation
    Inventors: Naoko Kumagai, Hiroki Kotani
  • Publication number: 20050179692
    Abstract: A video providing device comprises network I/Fs, for transmitting/receiving a video to an external network, a high-quality video server for storing the video as a regular editing video, a high-compressed video streamer for storing the video as a rough editing video, a high-compressed video server for reading out and transmitting the rough editing video on the basis of a video transmission request from a production included in the external network, and a high-quality video server for extracting and transmitting a part of the regular editing video to a post production on the basis of the result of editing processing from the production. Thus, the video providing device receives, for example, a video prepared by the production and supplies a part of the video to the post production.
    Type: Application
    Filed: April 13, 2005
    Publication date: August 18, 2005
    Inventors: Naoko Kumagai, Hiroki Kotani
  • Publication number: 20030220838
    Abstract: The present invention provides a cut-list creation system allowing a cut list to be made and edited automatically through a network at a request made by the user. The cut-list creation system comprises advertisement design terminals, a center server and a network for connecting the terminals to the server. The center server comprises a storage unit for storing video contents created by using an advertisement design terminal and a cut-list creation apparatus for creating template data of a video-content-scene list. The template data is created by extracting selected scenes from a video content stored in the storage unit in a division process carried out on the video content along the time axis. The division process is carried out by an advertisement design terminal by making accesses to the video content.
    Type: Application
    Filed: February 28, 2003
    Publication date: November 27, 2003
    Inventors: Makoto Ishii, Toshiki Ito, Naoko Kumagai
  • Publication number: 20030135761
    Abstract: A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device and file data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit, and a non-open WWW device for controlling an access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 17, 2003
    Inventors: Atsuhiko Mimura, Naoko Kumagai, Hiroki Kotani
  • Publication number: 20010052909
    Abstract: A video providing device (30) comprises network I/Fs (37), (38) for transmitting/receiving a video to an external network, a high-quality video server (32) for storing the video as a regular editing video, a high-compressed video streamer (35) for storing the video as a rough editing video, a high-compressed video server (31) for reading out and transmitting the rough editing video on the basis of a video transmission request from a production (51) included in the external network (20), and a high-quality video server (32) for extracting and transmitting a part of the regular editing video to a post production (40) on the basis of the result of editing processing from the production (51). Thus, the video providing device (30) receives, for example, a video prepared by the production (51) and supplies a part of the video to the post production (40).
    Type: Application
    Filed: February 15, 2001
    Publication date: December 20, 2001
    Applicant: SONY CORPORATION
    Inventors: Naoko Kumagai, Hiroki Kotani
  • Publication number: 20010034789
    Abstract: An ATM I/F for transmitting data to a data transmission destination via a communication network, a data transmission server, and a data transmission managing device for calculating a network necessary for data transmission on the basis of the data quantity of the data to be transmitted and the transmission completion time indicating the time of completion of data transmission to the data transmission destination are provided. Accounting information is generated on the basis of the calculated network band and transmission time. The data is transmitted to the data transmission destination by using the calculated network band. The data transmission to the data transmission destination is completed by the transmission completion time, and accounting information is generated. Thus, when transmitting data via the communication network, the data transmission completion time is designated in advance for data transmission.
    Type: Application
    Filed: February 20, 2001
    Publication date: October 25, 2001
    Inventors: Naoko Kumagai, Hiroki Kotani