Patents by Inventor Yuji Tsushima

Yuji Tsushima 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: 11948747
    Abstract: A dielectric body includes a plurality of crystal grains of which a main component is barium titanate, and an additive including Zr, Eu and Mn. At least one of the plurality of crystal grains has a core-shell structure having a core and a shell. A Zr/Ti atomic concentration ratio is 0.02 or more and 0.10 or less. An Eu/Ti atomic concentration ratio is 0.001 or more and 0.03 or less. A Mn/Ti atomic concentration ratio is 0.005 or more and 0.05 or less. A total atomic concentration of the one or more rare elements is smaller than an atomic concentration of Eu when the dielectric body has the one or more rare earth elements. A median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 2, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yuji Tsushima, Koichiro Morita
  • Publication number: 20230298819
    Abstract: A multilayer ceramic electronic device includes a plurality of internal electrode layers, a plurality of dielectric layers, each of which has a perovskite structure that is expressed by a general formula of ABO3, a pair of cover layers respectively provided on an upper end and a lower end in a stacking direction in a capacity section, and has a main component that is a same as a main component of the plurality of dielectric layers. The capacity section has a first section positioned in a center portion in the stacking direction and a pair of second sections outside of the first section in the stacking direction. An A/B ratio of the first section is larger than the A/B ratio of the second section. The A/B ratio of the pair of cover layers is larger than the A/B ratio of the first section.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 21, 2023
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yuji TSUSHIMA, Yasuhiro MATSUMOTO, Koichiro MORITA
  • Publication number: 20230290577
    Abstract: A multilayer ceramic device includes a multilayer chip. The multilayer chip has a capacity section, a side margin and an intermediate portion. The intermediate portion is provided between the capacity section and the side margin. An A/B ratio is larger in the side margin than in the capacity section, and is smaller in the intermediate portion than in the capacity section.
    Type: Application
    Filed: February 27, 2023
    Publication date: September 14, 2023
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yuji TSUSHIMA, Yasuhiro MATSUMOTO, Koichiro MORITA
  • Publication number: 20230250024
    Abstract: A dielectric material includes a main component including barium titanate, a first additive containing zirconium in an amount of 2 at % or more and 10 at % or less with respect to titanium of the barium titanate, a second additive containing 0.2 at % or more and 3.5 at % or less of europium with respect to titanium of the barium titanate, rare earth elements other than europium being less than europium, a third additive containing 0.5 at % or more and 4.5 at % or less of manganese with respect to titanium of the barium titanate, and a fourth additive containing at least one of strontium and calcium in an amount of 0.1 at % or more and 3 at % or less with respect to titanium in the barium titanate.
    Type: Application
    Filed: February 1, 2023
    Publication date: August 10, 2023
    Inventors: Yuta FUSE, Yuji TSUSHIMA
  • Publication number: 20220415576
    Abstract: A dielectric body includes a plurality of crystal grains of which a main component is barium titanate, and an additive including Zr, Eu and Mn. At least one of the plurality of crystal grains has a core-shell structure having a core and a shell. A Zr/Ti atomic concentration ratio is 0.02 or more and 0.10 or less. An Eu/Ti atomic concentration ratio is 0.001 or more and 0.03 or less. A Mn/Ti atomic concentration ratio is 0.005 or more and 0.05 or less. A total atomic concentration of the one or more rare elements is smaller than an atomic concentration of Eu when the dielectric body has the one or more rare earth elements. A median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 29, 2022
    Inventors: Yuji TSUSHIMA, Koichiro MORITA
  • Patent number: 11507881
    Abstract: An analysis apparatus comprises: a processor; and a storage device that stores a prediction model that predicts results for contributing factors of a group of events, wherein the processor executes: a prediction error calculation process in which, on the basis of a first prediction value attained by providing the prediction model with a first appearance frequency for contributing factors of a first event among the group of events, and results corresponding to the first appearance frequency, a prediction error of the first prediction value is calculated; and an error factor extraction process in which, on the basis of a correlation between a second appearance frequency for a contributing factor of a second event among the group of events and the prediction error calculated by the prediction error calculation process, an error factor of the prediction error is extracted from among the contributing factors of the first event.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: November 22, 2022
    Assignee: HITACHI, LTD.
    Inventors: Nodoka Mimura, Yuji Tsushima, Kozo Ikegami
  • Publication number: 20200210894
    Abstract: An analysis apparatus comprises: a processor; and a storage device that stores a prediction model that predicts results for contributing factors of a group of events, wherein the processor executes: a prediction error calculation process in which, on the basis of a first prediction value attained by providing the prediction model with a first appearance frequency for contributing factors of a first event among the group of events, and results corresponding to the first appearance frequency, a prediction error of the first prediction value is calculated; and an error factor extraction process in which, on the basis of a correlation between a second appearance frequency for a contributing factor of a second event among the group of events and the prediction error calculated by the prediction error calculation process, an error factor of the prediction error is extracted from among the contributing factors of the first event.
    Type: Application
    Filed: August 13, 2018
    Publication date: July 2, 2020
    Applicant: Hitachi, Ltd.
    Inventors: Nodoka MIMURA, Yuji TSUSHIMA, Kozo IKEGAMI
  • Patent number: 10452666
    Abstract: In the sensor data retrieval system, a gateway connected to a plurality of sensor devices collects sensor data including measurement values and time stamps and stores them in a temporary storage part, and the management computer collects sensor data and stores sensor data in the first storage part, the management computer updates the collected time for each gateway as the first time, registers the sensor data of the first storage part in the second storage part in the registration cycle, the search part which updates the latest time stamp among the time stamps of the registered sensor data for each gateway with the second time as the second time and accepts the search period and searches for the sensor data of the time stamp included in the search period, and the search upper limit time from the search period, and compares the second time with the search upper limit time.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 22, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Daisuke Ishii, Yuji Ogata, Yuji Tsushima
  • Publication number: 20190044913
    Abstract: To analyze communication information correctly and to extract task information, it is provided a network apparatus, which is configured to process packets, the network apparatus comprising: an arithmetic device; a storage device coupled to the arithmetic device; and an interface coupled to an apparatus, the apparatus being configured to transmit and receive packets. The arithmetic device being configured to execute processing in accordance with a predetermined procedure to implement: a reception processing module configured to receive a packet from the apparatus; and a vectorization module configured to convert a scalar value, which is a value of each byte of the received packet, into a vector value based on a predetermined vectorization algorithm.
    Type: Application
    Filed: March 13, 2018
    Publication date: February 7, 2019
    Inventors: Naoki TANIDA, Nodoka MIMURA, Yuji TSUSHIMA, Daisuke MATSUBARA, Katsufumi KON, Tetsuya OOHASHI, Hiroyuki MIKITA
  • Publication number: 20180067995
    Abstract: In the sensor data retrieval system, a gateway connected to a plurality of sensor devices collects sensor data including measurement values and time stamps and stores them in a temporary storage part, and the management computer collects sensor data and stores sensor data in the first storage part, the management computer updates the collected time for each gateway as the first time, registers the sensor data of the first storage part in the second storage part in the registration cycle, the search part which updates the latest time stamp among the time stamps of the registered sensor data for each gateway with the second time as the second time and accepts the search period and searches for the sensor data of the time stamp included in the search period, and the search upper limit time from the search period, and compares the second time with the search upper limit time.
    Type: Application
    Filed: July 26, 2017
    Publication date: March 8, 2018
    Inventors: Daisuke ISHII, Yuji OGATA, Yuji TSUSHIMA
  • Patent number: 9600380
    Abstract: When detecting the configuration change or the operating state of a virtual machine of the main system, a VM management unit changes a value of a determination index of the virtual machine, and selects a virtual machine of the standby system/auxiliary system used for failure recovery of the virtual machine of the main system on the basis of a value of the determination index. A pattern generation unit provides the virtual machine of the standby system/auxiliary system selected by the VM management unit.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: March 21, 2017
    Assignee: HITACHI, LTD.
    Inventors: Kazuhiko Mizuno, Michitaka Okuno, Yuji Tsushima
  • Patent number: 9535730
    Abstract: An information processing unit of a communication apparatus includes a non-volatile memory and a volatile memory. A control unit of the communication apparatus loads the boot image from the non-volatile memory to the volatile memory upon activation of the communication apparatus, activates the virtual machine template in the loaded boot image on the volatile memory, deactivates the activated virtual machine template after reconfiguring the activated virtual machine template to minimum required configuration to execute a virtual machine.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: January 3, 2017
    Assignee: HITACHI, LTD.
    Inventors: Michitaka Okuno, Yuji Tsushima
  • Publication number: 20160261481
    Abstract: In a data collection system in which a server and a gateway are connected to each other and which includes a plurality of sensors installed on a subject of monitoring and outputting sensor data, the server selects a collection rule to change the granularity of the sensor data when it is detected on the basis of the sensor data that an abnormality or a sign of abnormality has occurred in the subject of monitoring, and the server transmits the collection rule to the gateway. The gateway acquires and manages states of the sensors, selects a first condition according to the collection rule received from the server, changes a setting for acquiring the sensor data on the basis of the first condition and the states of the sensors, acquires sensor data from the sensors on the basis of the setting, and transmits the sensor data to the server.
    Type: Application
    Filed: January 26, 2016
    Publication date: September 8, 2016
    Applicant: HITACHI, LTD.
    Inventors: Yuji OGATA, Kazumasa TOKUHASHI, Yuji TSUSHIMA
  • Patent number: 9396013
    Abstract: A next-generation OS with a virtualization feature is executed as a user program on a first virtual processor by selecting, in response to a cause of a call for a host VMM, one of a guest status area (221) for executing a user program on a second virtual processor and a host status area (222) for executing the guest VMM, and by updating a guest status area (131) of a shadow VMCS for controlling a physical processor. Accordingly, without a decrease in performance of a virtual computer, the next-generation OS incorporating the virtualization feature is executed on a virtual server, and the next-generation OS and an existing OS are integrated on a single physical computer.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 19, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Toshiomi Moriki, Naoya Hattori, Yuji Tsushima
  • Patent number: 9304794
    Abstract: Provided is a virtual machine including a first virtualization module operating on a physical CPU, for providing a first CPU, and a second virtualization module operating on the first CPU, for providing second CPU. The second virtualization module includes first processor control information holding a state of the first CPU obtained at a time of execution of the user program. The first virtualization module includes second processor control information containing a state of the physical CPU obtained at the time of the execution of the second virtualization module, third processor control information containing a state of the physical CPU obtained at the time of the execution of the user program, and prefetch entry information in which information to be prefetched from the third processor control information is set, and, upon detection of a event, the information set in the prefetch entry information is reflected to the first processor control information.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: April 5, 2016
    Assignee: HITACHI, LTD.
    Inventors: Toshiomi Moriki, Naoya Hattori, Yuji Tsushima
  • Patent number: 9081612
    Abstract: A virtual machine control method and a virtual machine having the dual objectives of utilizing NIC on a virtual machine that creates sub-virtual machines operated by a VMM on virtual machines generated by a hypervisor to avoid software copying by the VMM and to prevent band deterioration during live migration or adding sub-virtual machines. In a virtual machine operating plural virtualization software on a physical machine including a CPU, memory, and multi-queue NIC; a virtual multi-queue NIC is loaded in the virtual machine, for virtual queues included in the virtual multi-queue NIC, physical queues configuring the multi-queue NIC are assigned to virtual queues where usage has started, and the physical queues are allowed direct access to the virtual machine memory.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: July 14, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Naoya Hattori, Hitoshi Hayakawa, Yuji Tsushima
  • Publication number: 20150169346
    Abstract: A next-generation OS with a virtualization feature is executed as a user program on a first virtual processor by selecting, in response to a cause of a call for a host VMM, one of a guest status area (221) for executing a user program on a second virtual processor and a host status area (222) for executing the guest VMM, and by updating a guest status area (131) of a shadow VMCS for controlling a physical processor. Accordingly, without a decrease in performance of a virtual computer, the next-generation OS incorporating the virtualization feature is executed on a virtual server, and the next-generation OS and an existing OS are integrated on a single physical computer.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Toshiomi MORIKI, Naoya HATTORI, Yuji TSUSHIMA
  • Publication number: 20150149813
    Abstract: When detecting the configuration change or the operating state of a virtual machine of the main system, a VM management unit changes a value of a determination index of the virtual machine, and selects a virtual machine of the standby system/auxiliary system used for failure recovery of the virtual machine of the main system on the basis of a value of the determination index. A pattern generation unit provides the virtual machine of the standby system/auxiliary system selected by the VM management unit.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 28, 2015
    Applicant: HITACHI, LTD.
    Inventors: Kazuhiko MIZUNO, Michitaka OKUNO, Yuji TSUSHIMA
  • Patent number: 9025443
    Abstract: Network equipment has multiple ports each performing transmission/reception of a frame, and a control unit that when the frame received through the port is an command of temporal suspension, temporarily suspends transmission of the frame from the port until a predetermined time elapses and after the predetermined time elapsed, alters the transmission bandwidth of each traffic about a communication path corresponding to the frame according to a variation of an interval at which the command of temporal suspension is received.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: May 5, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Hitoshi Hayakawa, Yuji Tsushima
  • Patent number: 9009701
    Abstract: A next-generation OS with a virtualization feature is executed as a user program on a first virtual processor by selecting, in response to a cause of a call for a host VMM, one of a guest status area (221) for executing a user program on a second virtual processor and a host status area (222) for executing the guest VMM, and by updating a guest status area (131) of a shadow VMCS for controlling a physical processor. Accordingly, without a decrease in performance of a virtual computer, the next-generation OS incorporating the virtualization feature is executed on a virtual server, and the next-generation OS and an existing OS are integrated on a single physical computer.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: April 14, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Toshiomi Moriki, Naoya Hattori, Yuji Tsushima