Patents by Inventor Atsushi Kitada

Atsushi Kitada 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: 11750490
    Abstract: A communication coupling verification method executed by a computer, the communication coupling verification method includes identifying both setting information before a setting change of each of network devices arranged in a network and forwarding information before the setting change; identifying both setting information after the setting change and the forwarding information after the setting change; generating a first model before the setting change and a second model after the setting change by using the setting information before the setting change, the forwarding information before the setting change, the setting information after the setting change, and the forwarding information after the setting change; and determining influence of the setting change on the network based on a difference between the generated first model and the generated second model.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: September 5, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Kitada, Masatake Miyabe
  • Publication number: 20210385145
    Abstract: A communication coupling verification method executed by a computer, the communication coupling verification method includes identifying both setting information before a setting change of each of network devices arranged in a network and forwarding information before the setting change; identifying both setting information after the setting change and the forwarding information after the setting change; generating a first model before the setting change and a second model after the setting change by using the setting information before the setting change, the forwarding information before the setting change, the setting information after the setting change, and the forwarding information after the setting change; and determining influence of the setting change on the network based on a difference between the generated first model and the generated second model.
    Type: Application
    Filed: March 22, 2021
    Publication date: December 9, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Atsushi Kitada, MASATAKE MIYABE
  • Publication number: 20210279089
    Abstract: A method for determining a container to be migrated, the method is implemented by a first node executing a plurality of containers, the method including, determining a first container included in the plurality of the containers as the container to be migrated to a second node, wherein a response time of the first container increases in a time /one in which a usage rate of a resource used by the first node increases, and the first container includes a parameter that affects the increase in the response time, where the parameter does not exceed a predetermined value in the time zone.
    Type: Application
    Filed: December 21, 2020
    Publication date: September 9, 2021
    Applicant: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Patent number: 10404602
    Abstract: There is provided a transmission apparatus including at least one memory in which a first data including a first destination information and a second data including a second destination information are stored, and at least one processor coupled to the at least one memory and the at least one processor configured to control the at least one memory to output the first data and the second data stored in the at least one memory according to a set rate, and control the set rate to output one of the first data and the second data according to a priority degree.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 3, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Kitada, Kazuto Nishimura
  • Patent number: 9932682
    Abstract: Provided is a method for producing electrolytic copper having a low Ag content by successfully suppressing the Ag concentration in an electrolytic solution. The electrolytic copper production method involves a step in which blister copper comprising Ag is used as an anode, and electrolysis is carried out under sulfuric acid acidity while maintaining the anode electric potential at a relatively low electric potential in comparison to the electric potential of the Ag elution.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: April 3, 2018
    Assignees: PAN PACIFIC COPPER CO., LTD., KYOTO UNIVERSITY
    Inventors: Kimihiro Shimokawa, Kuniaki Murase, Atsushi Kitada, Takahito Kasuno
  • Publication number: 20180091430
    Abstract: There is provided a transmission apparatus including at least one memory in which a first data including a first destination information and a second data including a second destination information are stored, and at least one processor coupled to the at least one memory and the at least one processor configured to control the at least one memory to output the first data and the second data stored in the at least one memory according to a set rate, and control the set rate to output one of the first data and the second data according to a priority degree.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 29, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Atsushi Kitada, Kazuto Nishimura
  • Patent number: 9902623
    Abstract: Provided are a macroporous titanium compound monolith and a production method thereof, the macroporous titanium compound monolith having a framework that is composed of a titanium compound other than titanium dioxide, having controlled macropores, and having electron conductivity, the titanium compound being oxygen-deficient titanium oxide, titanium oxynitride, or titanium nitride.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: February 27, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroshi Kageyama, Kazuki Nakanishi, Yoji Kobayashi, Atsushi Kitada, George Hasegawa
  • Patent number: 9722942
    Abstract: A communication device, includes: a plurality of queues each configured to accumulate a packet; a scheduler configured to provide a permissible readout amount to each of the plurality of queues in accordance with an order that is based on a priority of each queue; a read processor configured to read out the packet from the plurality of queues, the permissible readout amount being consumed according to amount of the packets read out; and an accumulation amount counter configured to count an accumulation amount of the packets accumulated in each of the plurality of queues, wherein the accumulation amount counter notifies the scheduler of a change in the accumulation amount, and wherein the scheduler adjusts the priority of, among the plurality of queues, the queue of which the accumulation amount has changed, in response to the notification from the accumulation amount counter.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 1, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Publication number: 20170093739
    Abstract: An apparatus includes queues each configured to store packets for a different one of flows. The apparatus reads out packets from each of the queues according to an allowable readout amount supplied for the flow, and outputs the packets to one of ports corresponding to the flow. The apparatus executes a readout amount supply process on a port sequentially selected from the ports, where the readout amount supply process includes selecting a flow from first flows corresponding to the selected port, and supplying the allowable readout amount to the selected flow. The apparatus controls execution of the readout amount supply process so that the allowable readout amount increases when the selected flow is bandwidth-guaranteed, and the allowable readout amount is also supplied to flows other than the selected flow within the first flows before selecting a next port from the ports when the selected flow is not bandwidth-guaranteed.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 30, 2017
    Inventor: Atsushi KITADA
  • Patent number: 9608927
    Abstract: A packet exchanging device includes queues each configured to accumulate one or more packets, a scheduler unit configured to give a certain permissible reading amount indicating amounts of data of readable packets to each of the queues, and a reading processing unit configured to read the one or more packets from the queues by the permissible reading amount in an order in which a reading condition regarding the permissible reading amount for each queue and an amount of data in the one or more packets accumulated in each queue is satisfied.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 28, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kazuto Nishimura, Atsushi Kitada, Hiroshi Tomonaga, Tsutomu Noguchi
  • Patent number: 9602413
    Abstract: A bandwidth control device includes: a management unit to subtract, when a first bandwidth control device (first device) or one or more second bandwidth control devices (second devices) allow a packet to pass, an amount of the passed packet from a permissible passage amount to be passed the first device; and a correction unit to correct the permissible passage amount of the first device or a threshold value of the first device based on a result of a comparison between a passage amount of packets passed the first device and passage amounts of packets passed the second devices, wherein the first device determines whether a packet is to be allowed to pass through or not based on a result of a comparison between the permissible passage amount and the threshold value and allows the packet to pass or discard the packet according to the determination result.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: March 21, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Kitada, Kazuto Nishimura
  • Publication number: 20170054646
    Abstract: There is provided a bandwidth control device including a token controller configured to supply tokens of packets according to requests; a pass controller configured to request the tokens of the token controller for each flow of packets, and control passage of the packets for each of flows based on an accumulation amount of the tokens supplied according to the requests; and a priority controller configured to control priority of the requests to the token controller according to comparison results of an input rate of the packets for each of the flows with a predetermined value set for each of the flows.
    Type: Application
    Filed: August 8, 2016
    Publication date: February 23, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Patent number: 9544229
    Abstract: A packet processing apparatus includes a processor configured to execute a process. The process includes: determining a memory from which packets are read, out of a first memory that stores the packets and a second memory that stores the packets, in accordance with number of pointers indicative of storage locations of the packets in the first memory; and reading the packets stored at the storage locations indicated by the pointers, from the memory determined at the determining.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: January 10, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Publication number: 20160301616
    Abstract: A bandwidth control method includes measuring a passing amount of a packet, represented by a plurality of digits; notifying another interface device of a value of a high-order-side digit; adding a value of a low-order-side digit to a passing amount of a packet to be measured in a following period according to a predetermined interval; calculating a provisional passing amount by adding the value of the high-order-side digit notified by the another interface device to the measured passing amount; determining whether to allow a target packet to pass when the target packet is received, based on a result of subtracting the provisional passing amount from an allowable passing amount that increases at a predetermined rate and decreases when a packet passes; allowing the target packet to pass when the target packet is allowed to pass; and discarding the target packet when the target packet is not allowed to pass.
    Type: Application
    Filed: March 16, 2016
    Publication date: October 13, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Publication number: 20160142315
    Abstract: A plurality of hash values is obtained by using a plurality of hash functions based on identification information of input data. A forwarding of the input data is controlled with reference to forwarding information based on any one of the hash values. A selection of a hash value to be used for the reference based on hash management information is controlled. The hash management information indicates whether or not each of the hash values is in-use to refer the forwarding information for each hash function.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 19, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi Tomonaga, Atsushi Kitada, Mami Sekido
  • Patent number: 9282045
    Abstract: A method includes scheduling a packet to be transmitted to a second relay device instead of a first relay device, when a plurality of packets actually transmitted or to be transmitted under a rule, which causes the packets to dispersively pass through different relay devices when destination addresses of the packets are the same, are disproportionally transmitted to the first relay device, and the rule indicates that the packet is to be transmitted to the first relay device.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: March 8, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Atsushi Kitada
  • Publication number: 20160017508
    Abstract: Provided is a method for producing electrolytic copper having a low Ag content by successfully suppressing the Ag concentration in an electrolytic solution. The electrolytic copper production method involves a step in which blister copper comprising Ag is used as an anode, and electrolysis is carried out under sulfuric acid acidity while maintaining the anode electric potential at a relatively low electric potential in comparison to the electric potential of the Ag elution.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 21, 2016
    Applicants: KYOTO UNIVERSITY, PAN PACIFIC COPPER CO., LTD.
    Inventors: Kimihiro SHIMOKAWA, Kuniaki MURASE, Atsushi KITADA, Takahito KASUNO
  • Publication number: 20150312156
    Abstract: A bandwidth control device includes: a management unit to subtract, when a first bandwidth control device (first device) or one or more second bandwidth control devices (second devices) allow a packet to pass, an amount of the passed packet from a permissible passage amount to be passed the first device; and a correction unit to correct the permissible passage amount of the first device or a threshold value of the first device based on a result of a comparison between a passage amount of packets passed the first device and passage amounts of packets passed the second devices, wherein the first device determines whether a packet is to be allowed to pass through or not based on a result of a comparison between the permissible passage amount and the threshold value and allows the packet to pass or discard the packet according to the determination result.
    Type: Application
    Filed: March 4, 2015
    Publication date: October 29, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Atsushi KITADA, Kazuto Nishimura
  • Patent number: 9154390
    Abstract: A packet relay apparatus includes a first packet processing circuit and a second packet processing circuit. The first packet processing circuit executes, discarding data packets from among data packets, and transferring the rest of the data packets to the second packet processing circuit, counting discard number of the data packets, determining whether or not the discard number is equal to or greater than a threshold and transferring, if the discard number is equal to or greater than the threshold, a discard number information packet including discard number information indicating the discard number to the second packet processing circuit. The second packet processing circuit executes discarding data packets from among the data packets, counting discard number of the data packets and collecting the discard number counted by the second packet processing circuit and the discard number indicated by the discard number information included in the discard number information packet.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: October 6, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Kitada, Kazuto Nishimura
  • Publication number: 20150279437
    Abstract: A packet processing apparatus includes a processor configured to execute a process. The process includes: determining a memory from which packets are read, out of a first memory that stores the packets and a second memory that stores the packets, in accordance with number of pointers indicative of storage locations of the packets in the first memory; and reading the packets stored at the storage locations indicated by the pointers, from the memory determined at the determining.
    Type: Application
    Filed: March 18, 2015
    Publication date: October 1, 2015
    Inventor: Atsushi Kitada