Patents by Inventor Yusuke Asai

Yusuke Asai 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: 12262907
    Abstract: Disclosed is an organ sucking and grasping tool capable of reducing the height of the sucking and grasping tool, capable of reserving a viewing field for an endoscope, capable of reserving space for operations, and including a suction cup responsive to the deformation of an organ and unlikely to be detached. An organ sucking and grasping tool includes a suction tube body and a plurality of suction cups for organ suction provided at a front end portion of the suction tube body. The organ sucking and grasping tool sucks, elevates, and grasps an organ using suction force generated by the suction cups. The suction cups are held by a ring-shaped holder provided at the front end portion of the tube body, and an annular flange is provided at an open end portion of each of the suction cups.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: April 1, 2025
    Assignees: KYOTO UNIVERSITY, FUJI SYSTEMS CORPORATION
    Inventors: Toshihiko Sato, Yusuke Muranishi, Akihiro Asai
  • Publication number: 20250088292
    Abstract: A wireless apparatus according to one aspect of the present invention includes an acquisition unit configured to acquire a communication quality index indicating communication quality of a link for each of a plurality of links forming a multi-link with another wireless apparatus; and a multi-link control unit configured to determine whether to suspend use of a first link having the lowest communication quality among the plurality of links based on comparison between the communication quality index for the first link and a first threshold.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 13, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hanae OTANI, Kengo NAGATA, Akira KISHIDA, Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI
  • Patent number: 12250104
    Abstract: Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: March 11, 2025
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoki Murakami, Yusuke Asai, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi, Takeo Ichikawa
  • Publication number: 20250081167
    Abstract: A wireless communication system includes: a plurality of wireless communication apparatuses that constitutes a wireless communication network; and one or a plurality of control apparatuses that controls the plurality of wireless communication apparatuses. Each of the plurality of wireless communication apparatuses includes a plurality of network interface controllers (NICs) that performs wireless communication through different channels that do not overlap each other. The one or plurality of control apparatuses executes channel switching processing of switching a use state of the plurality of NICs in each of the plurality of wireless communication apparatuses. The one or plurality of control apparatuses controls the plurality of wireless communication apparatuses to use NICs of the same channel in the same period.
    Type: Application
    Filed: July 20, 2021
    Publication date: March 6, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI, Junichi IWATANI, Tomoyuki YAMADA, Yoshitaka SHIMIZU
  • Publication number: 20250056609
    Abstract: A wireless communication system includes: a first wireless terminal capable of communicating through both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band higher than the first frequency band; a second wireless terminal that is compatible with communication through the first communication scheme and is not compatible with communication through the second communication scheme; and a base station that is compatible with multi-link and accommodating the first wireless terminal and the second wireless terminal. A carrier sense level during transmission in communication between a base station and the first wireless terminal through the first communication scheme is set to a value less than a predetermined value that is a carrier sense level during transmission in communication between the base station and the second wireless terminal through the first communication scheme.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 13, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250039707
    Abstract: A frequency state observation system observes a spectrum in a predetermined frequency range by a plurality of observation devices that are arranged in advance at different positions in a predetermined area, performs wireless communication in the predetermined frequency range, receives, by a data calculation device, the spectrum and packet information from each of the plurality of observation devices together with each of time information, synchronizes each of spectra received by the data calculation device based on time information of packet information corresponding to the spectra, and determines usage of a frequency in the predetermined area or the type of a wireless system transmitting a radio wave in the predetermined area, on the basis of each of the synchronized spectra.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 30, 2025
    Inventors: Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI, Junichi IWATANI, Yoshitaka SHIMIZU, Tomoyuki YAMADA
  • Publication number: 20250039730
    Abstract: A wireless communication system according to one embodiment is a wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, and the wireless communication system includes: delay determination circuitry configured to determine whether a delay in communication of the second communication scheme exceeds a predetermined value; and a controller to perform control such that the wireless terminals and the base station communicate by the first communication scheme without using the second communication scheme until a predetermined time elapses in a case where the delay determination circuitry determine that the delay exceeds the predetermined value.
    Type: Application
    Filed: December 3, 2021
    Publication date: January 30, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250024499
    Abstract: The wireless communication system includes a plurality of wireless terminals each including a plurality of wireless interfaces corresponding to a plurality of channels in different frequency bands, and a wireless base station device that establishes wireless communication with the wireless terminals. Each of the wireless terminals performs channel sensing, and transmits sensing information including an identifier of a sensed channel, a sensing result of the channel, and an identifier of the wireless terminal. The wireless base station device calculates and stores a sensing time for each of the wireless terminals on the basis of the sensing information, the sensing time being an accumulated value of time required for sensing by the wireless terminal, and allocates a reward according to the sensing time to each of the plurality of wireless terminals.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 16, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250024351
    Abstract: A wireless communication system includes a multi-device-compatible base station to mixedly accommodate one or more first wireless terminals capable of performing simultaneous communication by a plurality of different communication schemes. There is a control device configured to control the base station. The control device includes a collection unit that collects scheme information regarding the communication schemes by which the first wireless terminals are able to perform communication and scheme information regarding the communication schemes by which the second wireless terminals are able to perform communication. There is also a distribution control unit that controls distribution of traffic.
    Type: Application
    Filed: December 1, 2021
    Publication date: January 16, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Junichi IWATANI, Yusuke ASAI, Akira KISHIDA, Shinya OTSUKI, Riku OMIYA, Yasushi TAKATORI
  • Publication number: 20250021727
    Abstract: A first design assistance system includes a first input/output management unit that receives a product specification and a first inference model trained to output first design information that fulfills the product specification. The first design assistance system includes a first design information output unit that outputs the first design information from the product specification by inputting an input specification that is the product specification accepted by the first input/output management unit to the first inference model. The first design assistance system uses a past product design for product design that fulfills a product specification of interest.
    Type: Application
    Filed: September 30, 2024
    Publication date: January 16, 2025
    Applicant: TOPPAN HOLDINGS INC.
    Inventors: Yoshihiro UEDA, Makoto ASAI, Yusuke BAN, Yoshihito TOKUOKA
  • Publication number: 20250024382
    Abstract: A terminal apparatus includes a determination unit and a transmission unit. The determination unit determines a target of transmission power regulation based on a beacon frame. The transmission unit, in a case where it is determined that the target of regulation is not a transmission power density, transmits a first frame in a first frequency band, and in a case where it is determined that the target of regulation is a transmission power density, transmits a second frame which is a duplicate of the first frame in a second frequency band while transmitting the first frame in the first frequency band.
    Type: Application
    Filed: August 18, 2021
    Publication date: January 16, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Shoko SHINOHARA, Hanae OTANI, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20250016594
    Abstract: The wireless communication system includes a plurality of wireless terminals each including a plurality of wireless interfaces corresponding to a plurality of channels in different frequency bands, and a wireless base station device that establishes wireless communication with the wireless terminals. Each of the wireless terminals performs channel sensing, and transmits sensing information including an identifier of a sensed channel, a sensing result of the channel, and an identifier of the wireless terminal. The wireless base station device calculates and stores the number of sensing channels for each of the wireless terminals on the basis of the sensing information, the number of sensing channels being the number of channels sensed by the wireless terminal, and allocates a reward according to the number of sensing channels to each of the plurality of wireless terminals.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 9, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250016616
    Abstract: A wireless communication system according to one embodiment is a wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, and the wireless communication system includes: number-of-times measurement circuitry configured to measure the number of retries for attempting communication by the second communication scheme; and a controller to perform control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the number of times measured by the number-of-times measurement circuitry exceed a predetermined number of times.
    Type: Application
    Filed: December 3, 2021
    Publication date: January 9, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250016576
    Abstract: A frequency state observation system according to an embodiment includes a spectrum observation device that observes a spectrum of a frequency range that can be used by a plurality of wireless communication systems, a control device that controls the spectrum observation device to perform a plurality of single sweeps over the frequency range, and a wireless communication device that transmits, by a radio signal, information indicating a frequency of occurrence of a signal having a predetermined threshold or more included in a spectrum observed by the spectrum observation device performing a plurality of single sweeps, with respect to a predetermined time.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 9, 2025
    Inventors: Shoko SHINOHARA, Yusuke Asai, Yasushi TAKATORI, Junichi Iwatani, Yoshitaka SHIMIZU, Tomoyuki Yamada
  • Publication number: 20250016827
    Abstract: A wireless communication system includes: a first wireless terminal capable of communicating through both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band higher than the first frequency band; a second wireless terminal that is compatible with communication through the first communication scheme and is not compatible with communication through the second communication scheme; and a multi-link compatible base station that accommodates the first wireless terminal and the second wireless terminal. A contention window value during transmission in communication between the base station and the first wireless terminal through the first communication scheme is set to a value greater than a predetermined value that is a contention window value during transmission in communication between the base station and the second wireless terminal through the first communication scheme.
    Type: Application
    Filed: December 17, 2021
    Publication date: January 9, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
  • Publication number: 20250008556
    Abstract: The wireless communication system includes a wireless terminal and a control unit. The wireless terminal includes a plurality of wireless modules that respectively perform wireless communication with a plurality of base stations on different channels. The wireless terminal uses one of the plurality of wireless modules as a use module, and stops data transmission from wireless modules other than the use module. The control unit performs switching of the use module in the wireless terminal such that a transmission time rate of each of the plurality of wireless modules does not exceed a predetermined upper limit.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 2, 2025
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Junichi IWATANI, Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI, Tomoyuki YAMADA, Yoshitaka SHIMIZU
  • Publication number: 20240430750
    Abstract: A wireless apparatus according to an aspect of the present invention includes a threshold determination unit that determines a threshold used for determining a usage state of a frequency channel, the threshold determination unit setting the threshold to a first value when a first priority that is a priority of a frame to be transmitted is a first priority level and setting the threshold to a second value higher than the first value when the first priority is a second priority level higher than the first priority level, and a carrier sense control unit that determines the usage state of the frequency channel based on a comparison between reception power of a frame detected on the frequency channel by carrier sense and the threshold.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 26, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hanae OTANI, Kengo NAGATA, Akira KISHIDA, Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20240413887
    Abstract: A network includes: a first link between a first STA as a repeater and a first AP as a parent device; and a second link between a second STA as a child device and the first STA. A first transmission time is set during which transmission is permitted to the first link based on a first amount of transmission. A second transmission time is set during which transmission is permitted to the second link based on a second amount of transmission. An entire transmission cycle is determined based on the first transmission time and the second transmission time. A first transmission period and a second transmission period do not overlap in the entire transmission cycle. Wireless communication performed on the first link is limited within the first transmission period. Wireless communication performed on the second link is limited within the second transmission period.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 12, 2024
    Inventors: Shoko SHINOHARA, Yusuke ASAI, Yoshitaka SHIMIZU, Junichi IWATANI, Tomoyuki YAMADA, Yasushi TAKATORI
  • Patent number: 12160797
    Abstract: A base station (10) according to an embodiment includes a data processing unit (101) and a wireless signal processing unit (103). The data processing unit (101) generates a MAC frame. The MAC frame includes input data and an identification bit (CB). The identification bit (CB) indicates that data is extended broadcast data. The wireless signal processing unit (103) converts the MAC frame into a wireless signal to distribute the wireless signal.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: December 3, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiko Inoue, Shoko Shinohara, Akira Kishida, Kengo Nagata, Yusuke Asai, Yasushi Takatori
  • Publication number: 20240389147
    Abstract: In a wireless communication method between a base station and a plurality of wireless terminals, the base station includes a plurality of first wireless modules that perform wireless communication using different channels that do not overlap each other, and each of the plurality of wireless terminals includes a second wireless module that performs wireless communication using any one communication channel. The wireless communication method includes executing a channel switching process of switching use states of the plurality of first wireless modules according to a predetermined schedule so as to enable any one of the plurality of first wireless modules to carry out transmission and to prohibit the other thereof from carrying out transmission. Further, there is a sleeping of an operation of the second wireless module while the first wireless module that performs wireless communication using the communication channel is prohibited from carrying out transmission.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 21, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI, Junichi IWATANI, Yoshitaka SHIMIZU, Tomoyuki YAMADA