Patents by Inventor Yuki Kawashima

Yuki Kawashima 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: 11021461
    Abstract: An artificial catalyst system which can acylate chromosome proteins with high selectivity has successfully been established by using a combination of an acyl CoA activating catalyst having target acylation area binding ability and acyl CoA or a derivative thereof.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 1, 2021
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Motomu Kanai, Shigehiro Kawashima, Kenzo Yamatsugu, Yoshifumi Amamoto, Yuki Aoi, Hiroki Suto, Nozomu Nagashima, Hitoshi Kurumizaka, Akihisa Osakabe, Yasuhiro Arimura
  • Patent number: 11018238
    Abstract: A structure including a metal oxide semiconductor layer and a noble metal oxide layer, wherein the metal oxide semiconductor layer and the noble metal oxide layer are adjacent to each other, and a film thickness of the noble metal oxide layer is more than 10 nm.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: May 25, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuki Tsuruma, Emi Kawashima, Yoshikazu Nagasaki, Takashi Sekiya, Yoshihiro Ueoka
  • Publication number: 20210139016
    Abstract: A vehicle control apparatus includes a steering device, a steering controller, a steering input member, a front-rear driving force distribution unit, and a behavior controller. The steering device steers front wheels of a vehicle. The steering controller controls and causes the steering device to perform steering automatically. The steering input member receives a steering operation inputted by a driver. The front-rear driving force distribution unit changes a front-rear driving force distribution ratio. The behavior controller predicts, if a steering operation is performed via the steering input member during the automatic steering, a behavior of the vehicle to be exhibited after steering corresponding to the steering operation, and causes, if an oversteer behavior is predicted to occur, the front-rear driving force distribution unit to change the driving force distribution ratio to a front-wheel biased distribution ratio as compared with a case where the oversteer behavior is not predicted to occur.
    Type: Application
    Filed: October 1, 2020
    Publication date: May 13, 2021
    Inventors: Harunobu HORIGUCHI, Ryoichi MIZUTANI, Akihisa OSADA, Yohei KAWASHIMA, Yuki SUGIMOTO
  • Patent number: 10990044
    Abstract: An image processing apparatus includes a fixing unit including a heater and a fixing belt. The fixing belt is electrically connected between a first power source and a ground terminal. A controller is configured to control the heater to heat the fixing belt. The controller is further configured to determine whether a current is flowing through the fixing belt and, upon determining that a current is not flowing through the fixing belt, control the heater not to heat the fixing belt.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: April 27, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yohei Doi, Eiji Shinohara, Kazuhiko Kikuchi, Sasuke Endo, Masaya Tanaka, Ryota Saeki, Kousei Miyashita, Ryosuke Kojima, Yuki Kawashima, Kiyotaka Murakami
  • Publication number: 20210088947
    Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.
    Type: Application
    Filed: July 6, 2020
    Publication date: March 25, 2021
    Inventors: Kiyotaka MURAKAMI, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Publication number: 20210080880
    Abstract: An image forming apparatus includes a heater, a fixing device, and a controller. The heater includes a heat generator that generates heat when the heater is turned on. The fixing device may fix a developer image on a surface of an image forming medium using the heat from the heat generator. The controller detects a voltage of a power supply for supplying electric power to the heater, and determines an occurrence of an abnormality in the heater if a voltage drop amount at the time the heater is turned on as compared to a case in which the heater is turned off is smaller than a first threshold value.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Eiji SHINOHARA, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Kiyotaka MURAKAMI
  • Publication number: 20210072679
    Abstract: An image processing apparatus includes a fixing unit including a heater and a fixing belt. The fixing belt is electrically connected between a first power source and a ground terminal. A controller is configured to control the heater to heat the fixing belt. The controller is further configured to determine whether a current is flowing through the fixing belt and, upon determining that a current is not flowing through the fixing belt, control the heater not to heat the fixing belt.
    Type: Application
    Filed: May 27, 2020
    Publication date: March 11, 2021
    Inventors: Yohei DOI, Eiji SHINOHARA, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yuki KAWASHIMA, Kiyotaka MURAKAMI
  • Publication number: 20210063927
    Abstract: A heating device includes a cylindrical film configured to be rotated about an axis, a heater including a substrate that extends along a longitudinal direction parallel to the axis, and a heater element on the substrate and facing an inner surface of the cylindrical film. A heat conductor extends along the longitudinal direction and has first and second surfaces. A first portion of the heat conductor contacts the substrate and a second portion of the heat conductor has a groove in the first surface. A temperature sensing element is disposed at a position on the second surface at a position opposite the groove.
    Type: Application
    Filed: May 21, 2020
    Publication date: March 4, 2021
    Inventors: Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kiyotaka MURAKAMI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Publication number: 20200401038
    Abstract: The present disclosure relates to a pellicle that can achieve both a high EUV transmittance and a uniformity in EUV transmittance by including a graphite thin film having a film thickness of 5 nm or more and 30 nm or less and a surface roughness (Sa) of 0.1 nm or more and 500 nm or less.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicants: KANEKA CORPORATION, UNIVERSITY OF HYOGO
    Inventors: Yuki Kawashima, Shuhei Ozaki, Masamitsu Tachibana, Takeo Watanabe, Tetsuo Harada
  • Publication number: 20200402850
    Abstract: The present disclosure relates to a wiring circuit, and a method for producing the wiring circuit, that includes graphite wiring having a specified thickness, a high electrical conductivity, and a high carrier mobility. The wiring circuit may include graphite wiring comprised of graphite where the graphite wiring has a thickness of 3 nm or more and less than 300 nm. The graphite may have an electrical conductivity along a graphite film plane direction of 18000 S/cm or more, and the graphite may have a carrier mobility along the graphite film plane direction of 9500 cm2/Vsec or more. The method for producing a wiring circuit may include steps of: (1) bonding a graphite film with a substrate; (2) plasma etching the graphite film to form a graphite thin film; and (3) etching the graphite thin film to form a wiring circuit.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicant: KANEKA CORPORATION
    Inventors: Mutsuaki Murakami, Yuki Kawashima
  • Patent number: 10845757
    Abstract: An image processing apparatus includes a heating device a temperature sensor, and a controller. The heating device includes a rotator, a fan, an introduction duct, a cooling duct, and a movement mechanism. The introduction duct is shaped such that an airflow generated by the fan is directed towards and is incident on a first end portion of the rotator. The cooling duct extends between the introduction duct and a first end of the rotator, and faces the first end portion. The cooling duct includes a plurality of duct portions. The movement mechanism is configured to move the fan, the introduction duct, and at least one of the duct portions along the rotational axis. The temperature sensor is configured to detect a temperature at the first end portion. The controller is configured to control a movement of the movement mechanism based on a temperature detected by the temperature sensor.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 24, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yuki Kawashima, Masaya Tanaka, Shuji Yokoyama
  • Patent number: 10824111
    Abstract: A heating device includes a rotator, a fan, an introduction duct, a cooling duct, and a movement mechanism. The rotator has a heater inside thereof. The fan is configured to generate an airflow towards a surface of the rotator. The introduction duct is positioned with respect to the fan and shaped such that the airflow is directed towards and is incident on a first end portion of the rotator in an axial direction of the rotator. The cooling duct extends between the introduction duct and a first end of the rotator in the axial direction, and faces the first end portion of the rotator. The cooling duct includes a plurality of duct portions extending along the rotational axis. The movement mechanism is configured to move the fan, the introduction duct, and at least one of the duct portions of the cooling duct along the rotational axis.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: November 3, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yuki Kawashima
  • Publication number: 20200301360
    Abstract: A heating device includes a rotator, a fan, an introduction duct, a cooling duct, and a movement mechanism. The rotator has a heater inside thereof. The fan is configured to generate an airflow towards a surface of the rotator. The introduction duct is positioned with respect to the fan and shaped such that the airflow is directed towards and is incident on a first end portion of the rotator in an axial direction of the rotator. The cooling duct extends between the introduction duct and a first end of the rotator in the axial direction, and faces the first end portion of the rotator. The cooling duct includes a plurality of duct portions extending along the rotational axis. The movement mechanism is configured to move the fan, the introduction duct, and at least one of the duct portions of the cooling duct along the rotational axis.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 24, 2020
    Inventor: Yuki KAWASHIMA
  • Publication number: 20200301327
    Abstract: An image processing apparatus includes a heating device a temperature sensor, and a controller. The heating device includes a rotator, a fan, an introduction duct, a cooling duct, and a movement mechanism. The introduction duct is shaped such that an airflow generated by the fan is directed towards and is incident on a first end portion of the rotator. The cooling duct extends between the introduction duct and a first end of the rotator, and faces the first end portion. The cooling duct includes a plurality of duct portions. The movement mechanism is configured to move the fan, the introduction duct, and at least one of the duct portions along the rotational axis. The temperature sensor is configured to detect a temperature at the first end portion. The controller is configured to control a movement of the movement mechanism based on a temperature detected by the temperature sensor.
    Type: Application
    Filed: February 20, 2020
    Publication date: September 24, 2020
    Inventors: Yuki KAWASHIMA, Masaya TANAKA, Shuji YOKOYAMA
  • Publication number: 20200289988
    Abstract: Provided is a method for cleaning a filtration membrane provided in a membrane filtration device that is immersed in a liquid to be treated and performs solid-liquid separation on the liquid to be treated. When a transmembrane pressure difference exceeds a first predetermined pressure difference P1, a first cleaning step W1 for cleaning a filtration membrane is performed using a first chemical solution; when the transmembrane pressure difference immediately after performing the first cleaning step W1 exceeds a second predetermined pressure difference P2 that is lower than the first predetermined pressure difference, a second cleaning step W2 for cleaning the filtration membrane is performed using a second chemical solution having a concentration higher than the first chemical solution; and when the second cleaning step W2 is performed, the concentration of the second chemical solution and/or the cleaning time is changed according to the temperature of the liquid to be treated.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Yasunobu OKAJIMA, Yuki KAWASHIMA, Yuji OTSUKA, Yukako MORITA, Ken TANAKA
  • Patent number: 10481354
    Abstract: An optical unit and an optical path tube are easily connected. A structure of connection between a side surface (1a) of the optical unit and the optical path tube includes: an extensible tube (72) constituting at least a part of the optical path tube, the extensible tube being extensible in a tube axis direction; a flange (26) attached to one end of the optical path tube; a flange receiving part (20) provided on the optical unit, the flange receiving part (20) receiving a front surface (26a) of the flange (26), the front surface (26a) of the flange (26) being an end surface on an open side; and a biasing part (23, 72) configured to bias at least a part of the optical path tube in a direction in which the extensible tube (72) extends.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: November 19, 2019
    Assignee: Gigaphoton Inc.
    Inventors: Yukio Watanabe, Hiroshi Someya, Yuki Kawashima, Yuto Tanaka
  • Patent number: 10481535
    Abstract: A fixing apparatus includes a fixing belt and an induced current generation section. The fixing belt includes a conductive layer. The induced current generation section faces the fixing belt. The induced current generation section includes a coil and a magnetic body. The coil generates a magnetic flux. The magnetic body faces the fixing belt across the coil. In the magnetic body, a part facing an end in a width direction of the fixing belt is set as a movable magnetic body capable of moving in a width direction.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 19, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yuki Kawashima
  • Patent number: 10474075
    Abstract: According to one embodiment, a fixing device includes a circulating member for fixing, a pressure member, a heater, a reflector, a heat storage section, and a driving device. The circulating member for fixing includes an annular peripheral wall circularly movable. The pressure member is arranged to face an outer peripheral surface of the circulating member for fixing and forms a nip with the circulating member for fixing. The heater is arranged inside the circulating member for fixing and heats the circulating member for fixing. The reflector is arranged inside the circulating member for fixing and reflects radiant heat of the heater to the circulating member for fixing. The heat storage section is provided integrally with the reflector or connected to the reflector. The driving device causes the heat storage section to abut on or separate from an inner peripheral surface of the circulating member for fixing.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 12, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yuki Kawashima
  • Publication number: 20190086846
    Abstract: A fixing apparatus includes a fixing belt and an induced current generation section. The fixing belt includes a conductive layer. The induced current generation section faces the fixing belt. The induced current generation section includes a coil and a magnetic body. The coil generates a magnetic flux. The magnetic body faces the fixing belt across the coil. In the magnetic body, a part facing an end in a width direction of the fixing belt is set as a movable magnetic body capable of moving in a width direction.
    Type: Application
    Filed: October 3, 2018
    Publication date: March 21, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yuki KAWASHIMA
  • Patent number: 10152005
    Abstract: A supporting shaft extending in the direction of A heating unit is provided on A plate. A first bracket configured to support, on the supporting shaft, a center portion in a longitudinal direction of the heating unit and allow the heating unit to move in a rotating direction and a vertical direction with respect to the plate is provided in the heating unit. Receivers are provided at both end portions in the longitudinal direction in one unit of the heating unit and A fuser unit. Inserters are provided in the other unit to be opposed to the receivers. If the fuser unit is attached to the plate, the inserters are coupled to the receivers to restrict the heating unit from moving in the rotating direction and the vertical direction.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 11, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Shuji Yokoyama, Yuki Kawashima