Patents by Inventor Yuji Watanabe

Yuji Watanabe 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).

  • Publication number: 20240353616
    Abstract: A refractive index variation due to short wavelength and high power in a silica-based planar lightwave circuit (PLC) is suppressed. An optical multiplex/demultiplex circuit which include two waveguide, is made up of an asymmetric Mach-Zehnder interferometer (MZ) in which two arms having different lengths are formed between two coupler portions, and multiplexing and demultiplexing light of different wavelengths, wherein a second waveguide core width of an arm through which light on a short wavelength side propagates is larger than a first waveguide core width of the waveguide constituting the asymmetric MZ.
    Type: Application
    Filed: October 1, 2021
    Publication date: October 24, 2024
    Inventors: Junji Sakamoto, Yuji Fujiwara, Kei Watanabe, Toshikazu Hashimoto
  • Publication number: 20240347889
    Abstract: Provided is a multiplexer that can easily vary the passband without switching filters, and is adaptable to high-precision measurement, analysis, and testing of high-frequency signals with a simple and inexpensive structure, and a spectrum analyzer, signal analyzer, and signal generation device using the same, and a multiplexer control method. The multiplexer 10 includes two BPFs 20a1 that are connected in parallel between a hybrid coupler 18a1 and a hybrid coupler 19a1, a BPF 20b1 that is connected to a port P4 of the hybrid coupler 18a1 and has a passband adjacent to a passband of the BPF 20a1, and passband variable means 40a, 40b, and 40c that vary the passbands of the BPFs 20a1 and the hybrid coupler 18a1 within a range of bands forming mutually overlapping bands within a predetermined frequency range.
    Type: Application
    Filed: April 4, 2024
    Publication date: October 17, 2024
    Inventors: Kenichi WATANABE, Yuji KISHI
  • Patent number: 12117386
    Abstract: An inspection device for a pillar shaped honeycomb filter includes: a housing portion that can house a pillar shaped honeycomb filter; an introduction pipe and a discharge pipe through which a gas can flow, each of the introduction pipe and the discharge pipe being connected to the housing portion; a particle generation portion for generating particles; a particle introduction portion for introducing the particles generated by the particle generation portion into the introduction pipe; a gas stirring portion arranged in the introduction pipe on an upstream side of the particle introduction portion in a gas flow direction; and particle counters for measuring the number of particles, the particle counters being arranged in the introduction pipe and the discharge pipe on a downstream side of the particle introduction portion in the gas flow direction.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: October 15, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yohei Kajiura, Yuji Watanabe, Yoshihiro Sato, Yuichi Tajima
  • Patent number: 12115650
    Abstract: A robot control system according to a present embodiment is a robot control system for controlling a mobile robot that is configured to autonomously within a facility. When it is detected that one or more used trays, among a plurality of trays used for meal service within the facility, are returned to a first prescribed place, the system instructs the mobile robot to collect the trays returned to the first prescribed place and deliver the trays to a second prescribed place.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: October 15, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
  • Publication number: 20240339747
    Abstract: An antenna module includes: a substrate with at least the top surface being a single crystal of silicon carbide; a single-crystal graphene layer provided in contact with the top surface of the substrate; and a gallium nitride layer on the substrate. The antenna module is characterized in that an antenna element portion is formed by patterning a region in the graphene layer that is not covered by the gallium nitride layer, an active element portion is formed in the gallium nitride layer, and a connection portion connecting the antenna element portion and the active element portion are integrally formed.
    Type: Application
    Filed: October 21, 2022
    Publication date: October 10, 2024
    Applicants: TOHOKU UNIVERSITY, NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY, SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hirokazu FUKIDOME, Tetsuya SUEMITSU, Issei WATANABE, Minoru KAWAHARA, Shoji AKIYAMA, Yuji TOBISAKA, Makoto KAWAI
  • Patent number: 12111660
    Abstract: An autonomous movement system according to an embodiment is an autonomous movement system that performs autonomous movement in a facility including an elevator, in which the autonomous movement system moves a waiting position in a car of the elevator, based on a person that gets on the car or an object that gets on the car. The autonomous movement system may determine the person or the object before the car stops at a floor or before a car door opens.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: October 8, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
  • Publication number: 20240319241
    Abstract: The present invention provides a filter bank circuit capable of measuring or testing a frequency band, a spectrum analyzer, a signal analyzer, a signal generator using the filter bank circuit, and a method for controlling the filter bank circuit. A filter bank circuit 10 includes, for example, a one-pole two-throw changeover switch 20 and filter groups G1 and G2, each of which has m filters. The passbands of the filters included in each filter group do not overlap with each other, and the adjacent passbands of the filters included in all the filter groups overlap with each other.
    Type: Application
    Filed: January 3, 2024
    Publication date: September 26, 2024
    Inventors: Yuji KISHI, Kenichi WATANABE
  • Patent number: 12093025
    Abstract: In a conveyance system, a conveyance object is conveyed by use of a plurality of mobile robots autonomously movable inside a facility. In a case where a blockade request event occurs in at least one area inside the facility, the conveyance system receives occurrence information transmitted from a facility management system configured to manage the facility and causes the mobile robots to execute an operation restriction to restrict operations of the mobile robots. In a case where a predetermined condition for the blockade request event is established after the mobile robots execute the operation restriction, the conveyance system reboots the mobile robots.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: September 17, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
  • Publication number: 20240300771
    Abstract: A medium processing apparatus for processing a medium ejected from an image forming apparatus includes a conveyor, a slit, a medium processing device, a stopper, and detectors. The conveyor conveys the medium ejected from the image forming apparatus. The slit communicates with an opening of a housing into which a medium is manually inserted from outside and includes a placement face on which the inserted medium is placed. The placement face has a first side and a second side orthogonal to the first side. The first and second sides are not parallel to a direction in which a side face of the housing extends. The medium processing device processes the medium conveyed by the conveyor or the medium placed on the slit. The stopper regulates edges of the medium along the first and second sides of the placement face. The detectors are disposed on the stopper to detect the medium.
    Type: Application
    Filed: February 20, 2024
    Publication date: September 12, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Shuuto Tohkaishi, Yuusuke Shibasaki, Yusuke Hirono, Atsushi Shinoda, Satoshi Hirata, Shingo Yoshizawa, Suzuka Fujita, Naofumi Yoshida, Ryota Takayama, Takahiro Watanabe, Takuya Morinaga, Yuji Suzuki, Wataru Nozaki, Kanako Fujisaki, Jun Yamada
  • Publication number: 20240294351
    Abstract: A liquid application device for applying liquid to a plurality of media to be crimped by a crimping device includes a liquid applier and a liquid-applier moving mechanism. The liquid applier applies liquid to the plurality of media. The liquid-applier moving mechanism moves the liquid applier to a first position at which the liquid applier applies liquid to a medium on a conveyance path in the liquid application device and a second position at which the liquid applier applies liquid to the plurality of media inserted through a liquid application slit of the liquid application device.
    Type: Application
    Filed: March 1, 2024
    Publication date: September 5, 2024
    Inventors: Kanako FUJISAKI, Yuusuke SHIBASAKI, Yusuke HIRONO, Atsushi SHINODA, Shuuto TOHKAISHI, Satoshi HIRATA, Shingo YOSHIZAWA, Suzuka FUJITA, Naofumi YOSHIDA, Ryota TAKAYAMA, Takahiro WATANABE, Takuya MORINAGA, Yuji SUZUKI, Jun YAMADA, Wataru NOZAKI
  • Publication number: 20240253923
    Abstract: A sheet processing device includes an upstream device, a downstream device, and a controller as circuitry. The upstream device includes multiple rollers to convey a sheet in a conveyance direction and perform a sheet processing. The downstream device is downstream from the upstream device in the conveyance direction. The downstream device includes a sheet sensor to detect the sheet. The controller controls a timing to rotate the multiple rollers of the upstream device to perform the sheet processing in response to a detection of the sheet by the sheet sensor.
    Type: Application
    Filed: January 24, 2024
    Publication date: August 1, 2024
    Inventors: Yusuke HIRONO, Yuusuke SHIBASAKI, Atsushi SHINODA, Shuuto TOHKAISHI, Satoshi HIRATA, Shingo YOSHIZAWA, Suzuka FUJITA, Naofumi YOSHIDA, Ryota TAKAYAMA, Takahiro WATANABE, Takuya MORINAGA, Yuji SUZUKI, Wataru NOZAKI, Kanako FUJISAKI, Jun YAMADA
  • Publication number: 20240255408
    Abstract: An inspection device for a pillar shaped honeycomb filter, wherein the inspection device includes: a housing portion; an introduction pipe and a discharge pipe, each of the introduction pipe and the discharge pipe being connected to the housing portion; a particle generation portion for generating particles; a particle introduction portion for introducing the particles generated by the particle generation portion into the introduction pipe; a gas stirring portion disposed in the introduction pipe on an upstream side of the particle introduction portion; a particle concentration adjusting portion disposed in the introduction pipe on a downstream side of the particle introduction portion; and particle counters for measuring the number of particles, the particle counters being disposed in the introduction pipe and the discharge pipe on the downstream side of the particle introduction portion.
    Type: Application
    Filed: December 27, 2023
    Publication date: August 1, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takakazu KOYAMA, Yuji WATANABE, Hiroyoshi INOUE, Takuya YAMADA
  • Publication number: 20240246787
    Abstract: A sheet folder includes a conveyor conveying a sheet, a first folding roller and a second folding roller that form a first nip, a third folding roller forming a second nip with the second folding roller, a first guide movable between a first guide posture and a first retracted posture, a second guide movable between a second guide posture and a second retracted posture, and a motor. The motor rotates the second folding roller forward to convey the sheet toward the first nip, reverse to convey the sheet toward the second nip, moves the first guide to arrange in the first guide in the first guide posture or the first retracted posture, and moves the second guide to arrange the second guide in the second guide posture or the second retracted posture.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 25, 2024
    Inventors: Takuya MORINAGA, Yuusuke SHIBASAKI, Yusuke HIRONO, Atsushi SHINODA, Shuuto TOHKAISHI, Satoshi HIRATA, Shingo YOSHIZAWA, Suzuka FUJITA, Naofumi YOSHIDA, Ryota TAKAYAMA, Takahiro WATANABE, Yuji SUZUKI, Wataru NOZAKI, Kanako FUJISAKI, Jun YAMADA
  • Patent number: 12038755
    Abstract: An autonomous movement system according to an embodiment is an autonomous movement system for autonomous movement in a facility, the autonomous movement system changing a movement speed for the autonomous movement depending on a cooperation mode, a connection mode and a caution mode, the cooperation mode being a mode of moving while acquiring position information inside a first range in cooperation with a facility camera, the first range being a range that the facility camera photographs to generate image data, the facility camera being fixed in the facility, the connection mode being a mode of moving inside a second range and outside the first range, the second range being a range in which connection with an access point is performed by wireless communication, the access point being fixed in the facility, the caution mode being a mode of moving outside the first range and outside the second range.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 16, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Taira, Shiro Oda, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma
  • Publication number: 20240166810
    Abstract: Provided is a polyarylene ether ketone resin, wherein a GPC-based number average molecular weight Mn is 6000 or more and less than 16000, a molecular weight distribution Mw/Mn represented by a ratio of a GPC-based weight average molecular weight Mw to the number average molecular weight Mn is 2.5 or less, and in all repeating units contained in the resin, ketone groups are 9.5 mol % or more and ether groups are 4.5 mol % or more.
    Type: Application
    Filed: March 25, 2022
    Publication date: May 23, 2024
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuji WATANABE, Michihiro ISHIHARA, Masami YONEMURA
  • Patent number: 11960578
    Abstract: A method is provided for determining command-to-process correspondence. The method includes identifying, by the hardware processor, initial processes resulting from executions of container immutability change events for each of multiple initially mutable containers in a cluster, based on an execution time, a process identifier and a process group identifier for each of the container immutability change events. The method also includes designating, by the hardware processor, a particular external command, from among external container commands stored in a database, as having a correspondence to an initial process, responsive to the initial process matching at least one respective process resulting from executing the particular external command.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: April 16, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hirokuni Kitahara, Yuji Watanabe, Fumiko Akiyama
  • Publication number: 20240095075
    Abstract: A computer-implemented method for determining container information associated with detected container mutation events is disclosed. The computer-implemented method includes: determining that a system call event to a host operating system includes a call to join a namespace and execute a parent process inside the namespace; determining that the namespace is associated with an existing container; responsive to determining that the namespace is associated with an existing container, determining that the system call event further includes a call to execute a child process inside the namespace; and responsive to determining that the system call event further includes a call to execute a child process inside the namespace: designating the child process as a mutation event to the existing container, and determining container information associated with the mutation event to the existing container. A corresponding computer system and computer program product are also disclosed.
    Type: Application
    Filed: September 21, 2022
    Publication date: March 21, 2024
    Inventors: Hirokuni Kitahara, Yuji Watanabe, Kugamoorthy Gajananan, Ruriko Kudo
  • Patent number: 11914755
    Abstract: Methods and systems for verifying a resource definition include simulating an original resource definition to identify at least one change that is made to the original resource definition by a management service. A signature of a received resource definition is generated, omitting portions of the received resource definition that correspond to the at least one identified change. The signature of the received resource definition is compared to a signature of the original resource definition to find a match and to verify the received resource definition. The received resource definition is implemented, responsive to finding the match.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: February 27, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hirokuni Kitahara, Ruriko Kudo, Kugamoorthy Gajananan, Yuji Watanabe
  • Patent number: 11809534
    Abstract: A system for controlling access to cluster resources is provided. The system includes one or more processors; and memory operatively coupled to the one or more processors, wherein the one or more processors and the memory form a cluster of computer resources that includes an admission controller configured to receive requests and determine if the request is authorized, a request history database that stores the request information received by the admission controller from a plurality of users, a role design advisor that is configured to adjust permissions for the plurality of users based on a pattern of usage identified from the request history database, and an alert system that communicates an alert to an administrator that a request outside the pattern of requests for the user has been received by the admission controller, wherein the admission controller, request history database, and role design advisor control access to the cluster resources.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: November 7, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yuji Watanabe, Ruriko Kudo, Hirokuni Kitahara, Kugamoorthy Gajananan
  • Patent number: 11772160
    Abstract: To provide a fine nickel powder for an internal electrode paste of an electronic component, the nickel powder obtained by a wet method and having high crystallinity, excellent sintering characteristics, and heat-shrinking characteristics. The nickel powder is obtained by precipitating nickel by a reduction reaction in a reaction solution including at least water-soluble nickel salt, salt of metal nobler than nickel, hydrazine as a reducing agent, and alkali metal hydroxide as a pH adjusting agent and water; the reaction solution is prepared by mixing a nickel salt solution including the water-soluble nickel salt and the salt of metal nobler than nickel with a mixed reducing agent solution including hydrazine and alkali metal hydroxide; and the hydrazine is additionally added to the reaction solution after a reduction reaction initiates in the reaction solution.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: October 3, 2023
    Assignees: SUMITOMO METAL MINING CO., LTD., MURATA MANUFACTURING CO., LTD.
    Inventors: Junji Ishii, Shingo Murakami, Hiroyuki Tanaka, Takahiro Kamata, Toshiaki Terao, Masaya Yukinobu, Yuji Watanabe, Tsutomu Tanimitsu, Yoshiyuki Kunifusa, Haruo Nishiyama