Patents by Inventor Shinichiro Aikawa

Shinichiro Aikawa 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: 12108279
    Abstract: A first wireless communication apparatus includes: a controller configured to perform numbering of multiple pieces of data and transmit the multiple pieces of data that are numbered, to a second wireless communication apparatus, and perform first processing in a case where, among the multiple pieces of data, specific data is discarded after the numbering and before the transmission, wherein the first processing is configured to transmit the multiple pieces of data subsequent to the discarding to the second wireless communication apparatus without renumbering, and transmit discarding notification information that notifies the discarding, to the second wireless communication apparatus.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: October 1, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi Ode, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Publication number: 20240298364
    Abstract: A wireless communication device includes processor circuitry configured to perform to control, when establishing communication with another wireless communication device in a non-communication mode, to generate first identification information included in identification information that is able to simultaneously identify the wireless communication device itself and the other wireless communication device, regardless of whether the other wireless communication device holds second identification information included in the identification information, and to notify the generated first identification information to the other wireless communication device.
    Type: Application
    Filed: April 8, 2024
    Publication date: September 5, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, SHINICHIRO AIKAWA, YOSHIHIRO KAWASAKI
  • Publication number: 20240260123
    Abstract: A wireless communication device includes processor circuitry configured to control, in a case of performing communication with another wireless communication device, so as to perform data communication using simultaneously a plurality of cell groups including a cell being able to control a control plane and another cell that are selected when the communication with the other wireless communication device in a non-communication mode is established.
    Type: Application
    Filed: April 4, 2024
    Publication date: August 1, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, Shinichiro AIKAWA, Yoshihiro KAWASAKI
  • Publication number: 20240251337
    Abstract: A wireless communication apparatus includes processor circuitry configured to control to perform data communication when communication is implemented with another wireless communication apparatus, the data communication selectively using a multiple-cell group, the multiple-cell group being selected when communication with the other wireless communication apparatus in a non-communication mode is established and being able to perform data communication allowed even in the non-communication mode.
    Type: Application
    Filed: April 5, 2024
    Publication date: July 25, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, Shinichiro AIKAWA, Yoshihiro KAWASAKI
  • Publication number: 20240224362
    Abstract: A wireless communication apparatus that is used as a second wireless communication apparatus in a wireless communication system that includes a first wireless communication apparatus and a plurality of the second wireless communication apparatuses includes: a communication circuit configured to perform wireless communication via a first communication channel between the wireless communication apparatus and one other second wireless communication apparatus, and wireless communication via a second communication channel between the wireless communication apparatus and the first wireless communication apparatus; and a control circuit configured to control the communication circuit to establish the second communication channel between the wireless communication apparatus and the first wireless communication apparatus, and switch from communication with the one other second wireless communication apparatus via the first communication channel to communication via the second communication channel.
    Type: Application
    Filed: March 18, 2024
    Publication date: July 4, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode
  • Publication number: 20240163951
    Abstract: An apparatus for transmitting information, applicable to a first node, includes: processor circuitry configured to connect to a plurality of parent nodes, wherein a radio link failure (RLF) occurs in a master cell group (MCG); and a transmitter configured to transmit failure information to an F1-terminating node of the first node via first F1 application protocol (F1AP) signaling.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Su YI, Meiyi JIA, Guorong LI, Shinichiro AIKAWA
  • Patent number: 11968731
    Abstract: A processing method includes: determining at least one of first conditions in a first situation, by a second wireless apparatus in a system which includes a first wireless apparatus and a plurality of the second wireless apparatuses, the first situation being when the wireless apparatus operates in an idle mode and when communication between the wireless apparatus and the one other second wireless apparatus is performed via a first channel, the first conditions including whether a quality of the first channel is lower than a predetermined quality and whether a switching instruction is received; and executing a first process by the second wireless apparatus when the at least one of first conditions is met, the first process including establishing a second channel between the second wireless apparatus and the first wireless apparatus, and switching from communication via the first channel to communication via the second channel.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 23, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode
  • Patent number: 11852294
    Abstract: Provided is a diagnosis technique with high reliability when a state of lubricating oil of a rotary machine such as a wind power generator is diagnosed by a state monitoring sensor. A diagnosis system of lubricating oil includes a lubricating oil utilization device, a lubricating oil tank for storing lubricating oil to be supplied to the lubricating oil utilization device, and a sensor which measures characteristics of the lubricating oil. In this system, the state of the lubricating oil is diagnosed by using sensor data obtained after a time required for air bubbles in the lubricating oil generated at the time of use of the device disappear elapses since the lubricating oil utilization device is regularly or irregularly stopped.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: December 26, 2023
    Assignee: HITACHI, LTD.
    Inventors: Kyoko Kojima, Mitsuru Saeki, Shinichiro Aikawa
  • Publication number: 20230300871
    Abstract: A wireless communication device that transmits data to another wireless communication device that performs wireless connection using a packet including a transmission number, the wireless communication device includes, a controller configured to classify the data as first data when a transmission condition indicating a condition related to transmission of the data is a first transmission condition and classifies the data as second data when the transmission condition of the data is a second transmission condition different from the first transmission condition, and a transmitter configured to transmit the data in a first transmission mode in a layer related to the wireless connection when the data is the first data and transmits the data in a second transmission mode in a layer related to the wireless connection when the second data is second data.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi Ode, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Patent number: 11737128
    Abstract: A communication system includes: a first communication apparatus configured to control a first wireless communication and a second wireless communication different from the first wireless communication; a second communication apparatus configured to communicate using the second communication; and a third communication apparatus configured to perform data communication with the first communication apparatus via the first wireless communication or the second wireless communication, wherein the third communication apparatus transmits to the first communication apparatus a control message that includes an available address of the third wireless communications apparatus used in the second wireless communication, the first communication apparatus notifies the second communication apparatus of the available address of the third communication apparatus, and the second communication apparatus communicate with the third communication apparatus using the address.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 22, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode, Junichi Suga, Ryuichi Takechi
  • Patent number: 11700631
    Abstract: A wireless communication device that transmits data to another wireless communication device that performs wireless connection using a packet including a transmission number, the wireless communication device includes, a controller configured to classify the data as first data when a transmission condition indicating a condition related to transmission of the data is a first transmission condition and classifies the data as second data when the transmission condition of the data is a second transmission condition different from the first transmission condition, and a transmitter configured to transmit the data in a first transmission mode in a layer related to the wireless connection when the data is the first data and transmits the data in a second transmission mode in a layer related to the wireless connection when the second data is second data.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 11, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi Ode, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Patent number: 11690092
    Abstract: A wireless communications system includes a first wireless-communications-apparatus that controls a second wireless-communication by a controller for a first wireless-communication; a second wireless-communications-apparatus capable of the second wireless-communication; and a third wireless-communications-apparatus capable of data transmission with the first wireless-communications-apparatus via the first or second wireless-communication, and that transmits to the first wireless-communications-apparatus, a control message including an address thereof for the second wireless-communication.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: June 27, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode, Junichi Suga, Ryuichi Takechi
  • Patent number: 11653280
    Abstract: A wireless apparatus, which is used as a first wireless apparatus in a wireless system that includes the first wireless apparatus and a plurality of second wireless apparatuses, includes: a communication circuit for receiving a result of measurement of a first channel from each of the plurality of second wireless apparatuses that communicate with each other via the first channel; and a control circuit for executing a first process when the result of the measurement is lower than a predetermined quality, wherein the first process causes the communication circuit to transmit a switching instruction to each of the plurality of second wireless apparatuses, to establish a second channel between the wireless apparatus and each of the plurality of second wireless apparatuses, and to switch wireless communication between each of the plurality of second wireless apparatuses via the first channel to wireless communication via the second channel.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: May 16, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode
  • Patent number: 11589408
    Abstract: A mobile station including: a communication unit that includes a first logical processing subject and a second logical processing subject that operates in association with the first logical processing subject and performs multiple communications with a first wireless communication apparatus and a second wireless communication apparatus; an accumulation unit that accumulates data received from the second wireless communication apparatus; and a notifying unit that notifies the first wireless communication apparatus of data receiving status in the accumulation unit.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: February 21, 2023
    Assignee: FUJITSU CONNECTED TECHNOLOGIES LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa
  • Patent number: 11546797
    Abstract: A first communication device in a communication systems including the first communication device and the second communication device that performs wireless connection with the first communication device and relays communication with the first communication device, the first communication device includes a receiver configured to receive packets from the second communication device, and a transmitter configured to store reception confirmation packets corresponding to the packets in a buffer, perform transmission at least a portion of the reception confirmation packets stored in the buffer, and discard reception confirmation packets not to be transmitted in the transmission according to a discard ratio.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 3, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Takayoshi Ode, Shinichiro Aikawa
  • Publication number: 20220394724
    Abstract: A communication system includes: a first communication apparatus configured to control a first wireless communication and a second wireless communication different from the first wireless communication; a second communication apparatus configured to communicate using the second communication; and a third communication apparatus configured to perform data communication with the first communication apparatus via the first wireless communication or the second wireless communication, wherein the third communication apparatus transmits to the first communication apparatus a control message that includes an available address of the third wireless communications apparatus used in the second wireless communication, the first communication apparatus notifies the second communication apparatus of the available address of the third communication apparatus, and the second communication apparatus communicate with the third communication apparatus using the address.
    Type: Application
    Filed: August 18, 2022
    Publication date: December 8, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, SHINICHIRO AIKAWA, Takayoshi Ode, Junichi Suga, Ryuichi TAKECHI
  • Publication number: 20220316653
    Abstract: Provided is a diagnosis technique with high reliability when a state of lubricating oil of a rotary machine such as a wind power generator is diagnosed by a state monitoring sensor. A diagnosis system of lubricating oil includes a lubricating oil utilization device, a lubricating oil tank for storing lubricating oil to be supplied to the lubricating oil utilization device, and a sensor which measures characteristics of the lubricating oil. In this system, the state of the lubricating oil is diagnosed by using sensor data obtained after a time required for air bubbles in the lubricating oil generated at the time of use of the device disappear elapses since the lubricating oil utilization device is regularly or irregularly stopped.
    Type: Application
    Filed: October 15, 2020
    Publication date: October 6, 2022
    Inventors: Kyoko KOJIMA, Mitsuru SAEKI, Shinichiro AIKAWA
  • Patent number: 11432346
    Abstract: A wireless communications system includes a base station configured to control a second wireless communication different from a first wireless communication by a control unit configured to control the first wireless communication; and a mobile station configured to be capable of performing data transmission between the mobile station and the base station, using one of the first wireless communication and the second wireless communication. When data is transmitted between the base station and the mobile station using the second wireless communication, a sender station among the base station and the mobile station performs transmission control of using an identifier of a bearer of the data transmitted to a receiver station among the base station and the mobile station and using correspondence information of the identifier and an access category that is QoS information in the second wireless communication to identify the access category of the data and transmit the data.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: August 30, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode, Junichi Suga, Ryuichi Takechi
  • Patent number: 11324065
    Abstract: A base station includes a memory; a processor configured to transmit a wireless signal to a wireless terminal and to receive a wireless signal from the wireless terminal; and a controller configured to, while a radio link between the wireless terminal and the base station is disconnected, and an upper-layer connection between the base station and an upper-layer node is maintained wherein the wireless terminal uses the upper-layer connection for communication through the base station, in response to an event that one of first setting information for setting the radio link and second setting information for setting the upper-layer connection is changed, transmit setting information having been changed among the first setting information and the second setting information to the wireless terminal through the processor.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: May 3, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Ode, Shinichiro Aikawa, Yoshihiro Kawasaki, Yoshiaki Ohta
  • Publication number: 20220078866
    Abstract: A mobile station including: a communication unit that includes a first logical processing subject and a second logical processing subject that operates in association with the first logical processing subject and performs multiple communications with a first wireless communication apparatus and a second wireless communication apparatus; an accumulation unit that accumulates data received from the second wireless communication apparatus; and a notifying unit that notifies the first wireless communication apparatus of data receiving status in the accumulation unit.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 10, 2022
    Applicant: FUJITSU CONNECTED TECHNOLOGIES LIMITED
    Inventors: Yoshiaki OHTA, SHINICHIRO AIKAWA