Patents by Inventor Hideki Okita

Hideki Okita 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: 10691705
    Abstract: The method includes: identifying a type of a data item in which the data is stored, using an overlap pattern indicating the type of the data item and a method for identifying the type; processing the data stored in the data item, using calculation designated for each type of the data item, and adding at least one or more new data items to the type of the data item storing the processed data; and calculating scores obtained by quantifying an amount of information displayed on a display screen for the data items including the added data items and arranging the data items on the basis of the scores.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 23, 2020
    Assignee: HITACHI LTD.
    Inventors: Yuncheng Zhu, Hideki Okita
  • Publication number: 20190012319
    Abstract: The method includes: identifying a type of a data item in which the data is stored, using an overlap pattern indicating the type of the data item and a method for identifying the type; processing the data stored in the data item, using calculation designated for each type of the data item, and adding at least one or more new data items to the type of the data item storing the processed data; and calculating scores obtained by quantifying an amount of information displayed on a display screen for the data items including the added data items and arranging the data items on the basis of the scores.
    Type: Application
    Filed: March 15, 2018
    Publication date: January 10, 2019
    Applicant: HITACHI, LTD.
    Inventors: Yuncheng ZHU, Hideki OKITA
  • Patent number: 9762727
    Abstract: A trial number and a failure number of a procedure extending to the plurality of devices configuring the mobile core network are acquired, a process trial number and a failure number of a received message in the single device are acquired, and the possibility of quality degradation of the devices configuring the mobile core network is calculated on the basis of the trial number and the failure numbers.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: September 12, 2017
    Assignee: HITACHI, LTD.
    Inventors: Yuncheng Zhu, Seishi Hanaoka, Hideki Okita
  • Patent number: 9629052
    Abstract: A traffic management server is configured to determine a base station at which a handover occurs to a base station having a slower maximum communication speed as an area boundary base station, determine a terminal located within a coverage of the area boundary base station, and instruct a control apparatus included in a mobile network to limit a maximum usable bandwidth of the determined terminal.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: April 18, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Okita, Rintaro Katayama, Hiroto Nakagawa
  • Publication number: 20170063997
    Abstract: An evaluation apparatus includes: a processor; a memory; and an interface configured to receive data output by devices. The processor being configured to: receive action indicators including indicative data representing at least one physical quantity measured by a device and indicative data representing at least one specific of an action performed by the device through the interface; store the received action indicators to the memory; presume the action of the device by finding a match through comparing the received action indicators with templates each specifying a combination of items of indicative data required to presume an action of the devices; extract indicative data required to evaluate the presumed action from the received action indicators; and evaluate quality of the presumed action based on the extracted indicative data.
    Type: Application
    Filed: August 11, 2016
    Publication date: March 2, 2017
    Applicant: HITACHI, LTD.
    Inventors: Yuncheng ZHU, Hideki OKITA, Seishi HANAOKA
  • Patent number: 9544799
    Abstract: A base station congestion management includes at least one data management unit to which a plurality of communication monitoring apparatuses input the base station bandwidth information and the subscriber information, a shared data store to store base station bandwidth usage information and information of list of subscriber existing within base station coverage, and a congestion management unit to determine whether congestion is occurring at the base station. The data management unit calculates a total value of a used bandwidth for each base station, updates the base station bandwidth usage information, and updates the list of subscriber identification information of a user terminal connected with the base station. The congestion management unit identifies the subscriber identification information of the user terminal connected with the base station where congestion is occurring.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 10, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Okita, Yuki Sugimoto, Katsuyuki Tsunami
  • Publication number: 20160352600
    Abstract: In a network system including a plurality of pieces of network equipment, detection of a piece of network equipment in which an abnormality occurs is made possible. In the network system including the pieces of network equipment, index values indicating operation states of the pieces of network equipment such as data-plane index values are acquired from the respective pieces of network equipment via communication media, high-frequency components of the acquired index values are calculated, and the abnormality in the piece of network equipment is detected based on a correlation of the high-frequency components.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 1, 2016
    Applicant: Hitachi, Ltd.
    Inventors: Yuncheng ZHU, Hideki OKITA
  • Publication number: 20160249242
    Abstract: A base station congestion management includes at least one data management unit to which a plurality of communication monitoring apparatuses input the base station bandwidth information and the subscriber information, a shared data store to store base station bandwidth usage information and information of list of subscriber existing within base station coverage, and a congestion management unit to determine whether congestion is occurring at the base station. The data management unit calculates a total value of a used bandwidth for each base station, updates the base station bandwidth usage information, and updates the list of subscriber identification information of a user terminal connected with the base station. The congestion management unit identifies the subscriber identification information of the user terminal connected with the base station where congestion is occurring.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 25, 2016
    Inventors: Hideki OKITA, Yuki SUGIMOTO, Katsuyuki TSUNAMI
  • Publication number: 20160134747
    Abstract: A trial number and a failure number of a procedure extending to the plurality of devices configuring the mobile core network are acquired, a process trial number and a failure number of a received message in the single device are acquired, and the possibility of quality degradation of the devices configuring the mobile core network is calculated on the basis of the trial number and the failure numbers.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 12, 2016
    Applicant: HITACHI, LTD.
    Inventors: Yuncheng ZHU, Seishi HANAOKA, Hideki OKITA
  • Patent number: 9331946
    Abstract: Exemplary embodiments provide a technique to improve the system availability of the systems that have multiple links and are connected to a network fabric. In one embodiment, a switch comprises: a memory storing a first logical group which has a first plurality of IP addresses of a first plurality of ports and is assigned to a first ID (identifier), and a second logical group which has a second plurality of IP addresses of a second plurality of ports and is assigned to a second ID; and a controller controlling to cause a logical path of the first logical group to use a first physical path which is different from a second physical path to be used by a logical path of the second logical group, based on the first ID and the second ID.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: May 3, 2016
    Assignee: HITACHI, LTD.
    Inventor: Hideki Okita
  • Publication number: 20160057659
    Abstract: It is provided a traffic management system for managing traffic of a wireless network system, the wireless network system including at least one call control apparatus for processing a connection request from a subscriber terminal, the traffic management system being configured to predict a connection request processing completion time, which is a time required for the at least one call control apparatus to finish processing a connection request, based on a change in a slope of the connection request processing completion time in relation to a quantity of connection requests that are transferred from the subscriber terminals to the at least one call control apparatus.
    Type: Application
    Filed: June 8, 2015
    Publication date: February 25, 2016
    Applicant: HITACHI, LTD.
    Inventors: Hayato HOSHIHARA, Hideki OKITA, Ryoichi TANAKA, Seiya KUDOH
  • Patent number: 9185031
    Abstract: A routing control system comprising a system controller and master and slave routing servers, wherein the master routing server includes a plurality of logical controllers, each of which performs routing control for each of the user networks, the system controller monitors a load state of the master routing server and migrates at least one of the plurality of logical controllers from the master routing server to the slave routing server when the load state has satisfied a predetermined condition, so that the slave routing server inherits routing control for a particular user network associated with the migrated logical controller.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: November 10, 2015
    Assignee: Hitachi, Ltd.
    Inventor: Hideki Okita
  • Publication number: 20150312827
    Abstract: A traffic management server is configured to determine a base station at which a handover occurs to a base station having a slower maximum communication speed as an area boundary base station, determine a terminal located within a coverage of the area boundary base station, and instruct a control apparatus included in a mobile network to limit a maximum usable bandwidth of the determined terminal.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 29, 2015
    Inventors: Hideki OKITA, Rintaro KATAYAMA, Hiroto NAKAGAWA
  • Patent number: 9152639
    Abstract: Systems and methods are directed to a file storage system that manages configuration information for each cloud gateway's storage device. Systems and methods also manage a configuration parameter; and a file transfer slot number, which represents how many HTTP sessions the cloud gateway can process substantially simultaneously. Based on the configuration information, systems and methods may prioritize the multiple cloud gateways. Systems and methods calculate time lengths weighted by the priorities of the cloud gateways and multiplied by the file-transfer slot number for each cloud gateway in a time period, and then allocate time slots of the cloud gateways in the time period according to the above calculated time lengths. Systems and methods therefore allow for automatically aligning the traffic between cloud gateways and cloud storage according to the configuration of cloud gateways.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: October 6, 2015
    Assignee: HITACHI, LTD.
    Inventor: Hideki Okita
  • Publication number: 20150280987
    Abstract: In a multi-tenant information processing system, when initially constructing a tenant, design items depending on the tenant are specified for each device constituting the tenant, and design values of the design items are calculated without overlapping with those of other tenants. In a tenant design item management table, the design items set for the devices and information indicating whether the design items depend on the tenant, are stored for each device. In a design algorithm management table, calculation formulae for making the design values to be different for each tenant are stored corresponding to the design items. A tenant design unit refers to the tenant design item management table, specifies the design items depending on the tenant among those corresponding to the devices constituting the tenant, calculates the design values of the design items according to the calculation formula, when initially constructing the tenant.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventors: Yoshiko YASUDA, Yosuke HIMURA, Hideki OKITA, Mariko NAKAYAMA
  • Patent number: 9088503
    Abstract: In a multi-tenant information processing system, when initially constructing a tenant, design items depending on the tenant are specified for each device constituting the tenant, and design values of the design items are calculated without overlapping with those of other tenants. In a tenant design item management table, the design items set for the devices and information indicating whether the design items depend on the tenant, are stored for each device. In a design algorithm management table, calculation formulae for making the design values to be different for each tenant are stored corresponding to the design items. A tenant design unit refers to the tenant design item management table, specifies the design items depending on the tenant among those corresponding to the devices constituting the tenant, calculates the design values of the design items according to the calculation formula, when initially constructing the tenant.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: July 21, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiko Yasuda, Yosuke Himura, Hideki Okita, Mariko Nakayama
  • Patent number: 9064106
    Abstract: Exemplary embodiments may involve a meta-data server that manages data-server access control list (DS ACL) information. Each entry of this DS ACL information may include an address of a data server, an identification or a range address of chunk data on the data server, a file path of the chunk data in the file tree provided by the meta-data server, and addresses of the permitted clients. The meta-data server may determine the addresses of the permitted clients for the chunk data by retrieving the original file path of chunk data from layout information of the meta-data server, and by retrieving the entry containing the directory path that partially matches with the original file path from an access control list of the meta-data server.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: June 23, 2015
    Assignee: HITACHI, LTD.
    Inventors: Hideki Okita, Takahiro Nakano
  • Patent number: 9043621
    Abstract: A power-saving network management server, which is coupled to a network system including a network device and manages a state of power to the network device, wherein the power-saving network management server is configured to: store network configuration information and task allocation information; determine starting or stopping of the power supply to the port of the network device based on the updated network configuration information and task allocation information; store a determination result of the starting or stopping of the power supply to the port as a port determination result; and control the power supply to the port of the network device based on the port determination result.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: May 26, 2015
    Assignee: HITACHI, LTD.
    Inventors: Hideki Okita, Masahiro Yoshizawa, Machiko Asaie, Ken Naono
  • Publication number: 20140341226
    Abstract: A routing control system comprising a system controller and master and slave routing servers, wherein the master routing server includes a plurality of logical controllers, each of which performs routing control for each of the user networks, the system controller monitors a load state of the master routing server and migrates at least one of the plurality of logical controllers from the master routing server to the slave routing server when the load state has satisfied a predetermined condition, so that the slave routing server inherits routing control for a particular user network associated with the migrated logical controller.
    Type: Application
    Filed: August 4, 2014
    Publication date: November 20, 2014
    Inventor: Hideki OKITA
  • Publication number: 20140317313
    Abstract: In a network where network address translation (NAT) has been introduced, a problem occurs in which, when an IP host operating in a network is automatically categorized with automatic IP host discovery using an ARP cache, a plurality of IP hosts with the same IP address are recognized as one IP host by NAT. To resolve this problem, a network management server specifies network sub-topology on the basis of topology information, public addresses translated by NAT, and IP host corresponding relationships.
    Type: Application
    Filed: July 19, 2012
    Publication date: October 23, 2014
    Applicant: HITACHI, LTD.
    Inventors: Hideki Okita, Yoshiko Yasuda, Mariko Nakayama, Yosuke Himura, Kazuma Yumoto