Patents by Inventor Yu Sasaki

Yu Sasaki 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: 20240151760
    Abstract: A fault detection circuit according to the present disclosure includes a rectangular pulse comparison circuit configured to generate, for each combination of the pulse width modulated signals, detection signals each indicating a difference component between pulse widths of two pulse width modulated signals having phases adjacent to each other, and a fault diagnosis unit configured to detect a fault in an inverter based on a shift in a combination of logic levels of a plurality of the detection signals output by the rectangular pulse comparison circuit from a preset determination value. The fault diagnosis unit uses the determination value that is different for each motor rotation angle assuming in advance that two alternating-current signals having phases adjacent to each other among the three-phase alternating-current signals have the same voltage.
    Type: Application
    Filed: October 10, 2023
    Publication date: May 9, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki IYAMA, Yu SASAKI
  • Publication number: 20240151755
    Abstract: A fault detection circuit according to the present disclosure includes a plurality of phase difference detection circuits configured to generate phase difference measurement signals having a pulse width corresponding to a magnitude of a phase difference between two of drive signals of different phases among a plurality of drive signals, a plurality of smoothing circuits configured to smooth the phase difference measurement signals, which have been associated with the smoothing circuits, respectively, in advance, and output phase difference detection voltages each having a voltage value corresponding to the magnitude of the phase difference; and an error detection circuit configured to compare the plurality of phase difference detection voltages and switch abnormality detection signals from a disabled state to an enabled state when there is the phase difference detection voltage having a voltage value exceeding a preset tolerance range.
    Type: Application
    Filed: October 13, 2023
    Publication date: May 9, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu SASAKI, Hiroyuki IYAMA
  • Publication number: 20240142890
    Abstract: A developing roll for use in an image-forming apparatus using electrophotography includes a cylindrical core made of metal; an annular elastic layer made of rubber and arranged around the core; and an annular surface layer arranged around the elastic layer. The surface layer includes a central portion and end portions. The central portion is located at the center of the developing roll in the longitudinal direction, the end portions are located at opposite end portions of the developing roll in the longitudinal direction. A coefficient of kinetic friction of the outer peripheral surface of each end portion of the surface layer is less than or equal to 0.1, and a ten-point average roughness Rz of the outer peripheral surface of each end portion of the surface layer is less than or equal to 1.8 ?m.
    Type: Application
    Filed: December 3, 2021
    Publication date: May 2, 2024
    Applicant: NOK CORPORATION
    Inventors: Kosuke OURA, Norimasa HOSONUMA, Atsushi IKEDA, Yu AKAI, Satoshi FUKUOKA, Kenji SASAKI
  • Publication number: 20240136874
    Abstract: A rotating electrical machine includes a stator and a rotor, the rotor includes a rotor core and a plurality of magnetic poles, the plurality of magnetic poles includes a plurality of magnet poles formed by permanent magnets, and a plurality of dummy poles, the magnet poles and the dummy poles are alternately disposed in both an axial direction and a circumferential direction, non-magnetic holes are provided between the magnet poles and the dummy poles that are adjacent in the axial direction, and when a length of each magnet pole in the axial direction is tm, a length of each dummy pole in the axial direction is tc, a length of each non-magnetic hole in the axial direction is ta, and a length of the rotor core in the axial direction is lc, the rotating electrical machine satisfies tm>tc and lc<(2×tm)+ta.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 25, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hidenori SASAKI, Kenta MOTOYOSHI, Yu HIROTANI, Hiroko IKEDA, Shohei FUJIKURA
  • Publication number: 20240129632
    Abstract: A wafer position status inspection apparatus includes a wafer transportation device, a robotic arm rotatably mounted on the wafer transportation device, an image capture device arranged on the robotic arm, a light flashing device arranged at one side of the image capture device, and a status inspection section in information connection with the image capture device. An image capturing direction of the image capture device is set consistent with a gripping direction of the robotic arm, and a light projecting direction of the light flashing device is consistent with the image capturing direction. The light flashing device projects light on a wafer to generate a light-reflecting contour, which is captured by the image capture device to form a wafer contour image based on which the status inspection section acquires a wafer deposition status to identify various wafer statuses including incline, overlap, absence, and warp.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Inventors: Yu-Hsin Liu, Cheng-Hsiang Lu, Daisuke Sasaki
  • Patent number: 11950480
    Abstract: There are provided a color correction filter for a white organic electroluminescent light source including a resin and 0.1 part by mass or more of a coloring agent having an absorption maximum wavelength in a range of 560 to 620 nm or 460 to 520 nm with respect to 100 parts by mass of the resin, and having a moisture content of 0.5% by mass or less, and an organic EL display device having this filter.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: April 2, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Yu Naito, Nobutaka Fukagawa, Daisuke Sasaki, Hiroki Kuwahara
  • Patent number: 11926740
    Abstract: Provided are a resin composition including a compound represented by Formula (1) and a resin, a film and a filter including the resin composition, a liquid crystal display device and a solid-state imaging element including the filter, and a compound suitable as a light absorbing component of the resin composition and the filter. In Formula (1), Dye represents a colorant structural part obtained by removing n1 hydrogen atoms from a squarylium compound having a specific structure. Q1 is a structural part in which energy levels of a highest occupied molecular orbital and a lowest unoccupied molecular orbital satisfy a specific condition. L1 represents a divalent linking group and n1 represents an integer of 1 to 4.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 12, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Sasaki, Akihiro Hara, Kunihiko Kodama, Nobutaka Fukagawa, Yu Naito, Hiroki Kuwahara
  • Patent number: 11732862
    Abstract: An indicator lamp of the present invention includes a lamp body, a light source unit disposed inside the lamp body, and a light transmissive resin member disposed at a position for transmitting light that is emitted from the light source unit and for outputting the light from the lamp body. The light source unit emits red light having a maximum value of light intensity at a wavelength of 600 nm or longer and 700 nm or shorter. The light transmissive resin member has an L* value of 35 or less, a transmittance of light having a wavelength of 675 nm of 90% or greater and a total light transmittance of 5% or greater in the state in which an optical path length of transmitting light is 2 mm. This configuration provides an indicator lamp with excellent design that shows its presence by showing a red chromatic tone when a light source is turned on and that shows a black color tone when the light source is turned off.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 22, 2023
    Assignees: NISSAN MOTOR CO., LTD., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yu Sasaki, Tatsuomi Nakayama, Yusuke Hirata, Takao Marutani, Tadayoshi Sawada
  • Publication number: 20230255578
    Abstract: An X-ray CT apparatus of an embodiment includes a processing circuitry. The processing circuitry detects X-rays radiated from an X-ray tube in units of photons. The processing circuitry stores first energy spectrum information acquired by detecting X-rays at a first timing. The processing circuitry acquires second energy spectrum information by detecting X-rays at a second timing after the first timing. The processing circuitry determines a state of the X-ray tube on the basis of the first energy spectrum information and the second energy spectrum information.
    Type: Application
    Filed: February 9, 2023
    Publication date: August 17, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Yu SASAKI
  • Publication number: 20230260491
    Abstract: A percussion instrument motion reproduction device includes a percussion instrument. The percussion instrument includes a vibration portion. The percussion instrument motion reproduction device includes a first driving portion. The first driving portion of the percussion instrument motion reproduction device is configured to visually displace the vibration portion in response to an electrical signal.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventors: Yoshiyuki TSUGE, Yoshihiro NAKAMURA, Yu SASAKI, Ryo HAMAOKA, Naoki TORIYAMA
  • Publication number: 20230252965
    Abstract: A percussion instrument driving device includes an actuator and an actuator mount. The actuator includes an actuator surface configured to vibrate in response to an electrical signal to vibrate a vibration surface of a percussion instrument from outside of the percussion instrument. The actuator mount is disposed outside the percussion instrument having a vibration surface. The actuator mount is configured to mount the actuator to the percussion instrument from outside of the percussion instrument, with the actuator surface facing the vibration surface and spaced from the vibration surface.
    Type: Application
    Filed: April 3, 2023
    Publication date: August 10, 2023
    Inventors: Yoshiyuki TSUGE, Yu SASAKI
  • Publication number: 20230212446
    Abstract: Please replace the Abstract of the application as filed with the following replacement A coolant composition containing the following substances: a) an alcohol; b) water; c1) a triazole compound; c2) an imidazole compound; d) a phosphate ion; and e) a metasilicate.
    Type: Application
    Filed: August 12, 2021
    Publication date: July 6, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN CHEMICAL INDUSTRIES Co., Ltd.
    Inventors: Yuya Kusano, Masao Watanabe, Taiki Nakamura, Takumi Otsubo, Yoichiro Yoshii, Nobukazu Takagi, Yu Sasaki
  • Publication number: 20230012651
    Abstract: A developing device includes a developing container, a first stirring conveyance member, a second stirring conveyance member, and a developer carrying member. The developing container includes a first conveyance chamber and a second conveyance chamber that are arranged mutually side by side, and contains a two-component developer including a carrier and a toner. The first stirring conveyance member stirs and conveys the developer present in the first conveyance chamber in a first direction. The second stirring conveyance member stirs and conveys the developer present in the second conveyance chamber in a second direction. The developing container includes a toner replenishment portion that directly feeds a replenishment toner into the developer present in the first conveyance chamber from an upstream side of the first conveyance chamber with respect to the first direction. The carrier satisfies 0.73?FR×AD/shape factor?2.10.
    Type: Application
    Filed: July 6, 2022
    Publication date: January 19, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Yu SASAKI
  • Publication number: 20220364704
    Abstract: An indicator lamp of the present invention includes a lamp body, a light source unit disposed inside the lamp body, and a light transmissive resin member disposed at a position for transmitting light that is emitted from the light source unit and for outputting the light from the lamp body. The light source unit emits red light having a maximum value of light intensity at a wavelength of 600 nm or longer and 700 nm or shorter. The light transmissive resin member has an L* value of 35 or less, a transmittance of light having a wavelength of 675 nm of 90% or greater and a total light transmittance of 5% or greater in the state in which an optical path length of transmitting light is 2 mm. This configuration provides an indicator lamp with excellent design that shows its presence by showing a red chromatic tone when a light source is turned on and that shows a black color tone when the light source is turned off.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 17, 2022
    Applicants: NISSAN MOTOR CO., LTD., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yu SASAKI, Tatsuomi NAKAYAMA, Yusuke HIRATA, Takao MARUTANI, Tadayoshi SAWADA
  • Patent number: 11407452
    Abstract: Provided is a vehicle body structure member molded by a die. The vehicle body structure member includes a general portion constituting a main part of the vehicle body structure member, ribs provided in a standing manner from the general portion, and thickened portions provided in a standing manner from the general portion, each of the thickened portions being thicker than each of the ribs.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 9, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Soshiro Murata, Ayaka Kagami, Takashi Sagisaka, Yu Sasaki, Shinichi Arimoto, Koh Hirokawa
  • Patent number: 11388807
    Abstract: According to one embodiment, an X-ray CT apparatus includes processing circuitry. The processing circuitry is configured to acquire set tube current waveform, and specify, based on the set tube current waveform, a period of a first tube current and a period of a second tube current lower than the first tube current. The processing circuitry is further configured to determine a waveform of a grid voltage such that a first grid voltage is applied during a period corresponding to the period of the first tube current and a second grid voltage, which is higher than the first grid voltage, is applied during a period corresponding to the period of the second tube current.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: July 12, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Yu Sasaki
  • Patent number: 11358645
    Abstract: Provided is a vehicle body structure member molded by a die. The vehicle body structure member includes a general portion constituting a main part of the vehicle body structure member, and ribs provided in a standing manner from the general portion and extended along the input direction of a collision load.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 14, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Soshiro Murata, Ayaka Kagami, Takashi Sagisaka, Yu Sasaki, Shinichi Arimoto, Koh Hirokawa
  • Publication number: 20220036323
    Abstract: A computer-implemented system and method uses a processor of a device of an expiring virtual currency (EVC) wallet user. An EVC transaction is retrieved that is associated with a blockchain and addressed to an address associated with the EVC wallet. The EVC transaction comprises an expiration date for the EVCs, as part of virtual currency user rules (VCURs). If the expiration date of the EVCs has passed, the method automatically, and without user intervention, transfers the EVCs to a transferee designated in the VCURs.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 3, 2022
    Inventors: Yu Sasaki, GOYA SAKURADA, HIROSHIGE TAKEUCHI, MASATO TAKAI, MIKIO KURIHARA
  • Patent number: 11150578
    Abstract: A developing device includes a developing container, a first stirring member and a second stirring member, and a developing roller. The developing container includes a first stirring chamber, a second stirring chamber, and a communication portion. The first stirring member includes a reverse spiral vane that conveys a developer in a direction reverse to a circulation direction. An air discharge duct is formed on a wall portion of the first stirring chamber opposed to the reverse spiral vane and in an area excluding the communication portion and discharges air from the first stirring chamber to an outside of the developing container via an air discharge port at a distal end of the air discharge duct. A filtration portion is disposed in the air discharge duct adjacently to the air discharge port and restricts leakage of the developer through the air discharge port.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 19, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Yuji Kamiyama, Ikuo Makie, Yu Sasaki, Yukari Ota, Ryo Yamada
  • Patent number: 11112730
    Abstract: A developing device includes a developer container, a developer carrier, and a stirring/conveying member. The developer container stores developer containing toner. The developer carrier carries on its surface the toner in the developer container. The stirring/conveying member includes a rotary shaft rotatably supported on the developer container and a stirring blade formed around the outer circumferential face of the rotary shaft and stirs and conveys the developer in the developer container. The stirring/conveying member to be used can be selected from a plurality of types of stirring/conveying members with rotary shafts with different shaft diameters.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 7, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Ryo Yamada, Yuji Kamiyama, Yu Sasaki, Ikuo Makie