Patents by Inventor Sasuke Endo

Sasuke Endo 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: 20220299911
    Abstract: According to one embodiment, a heating device includes a fixing belt configured to be rotated and a pressure roller configured to abut against the fixing belt and be driven to cause the fixing belt to rotate. A heater is configured to heat the fixing belt. A motor is configured to drive the pressure roller to rotate. A current sensor is configured to measure a driving current of the motor. A controller is configured to stop the heater based on the measured driving current.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Inventor: Sasuke ENDO
  • Patent number: 11429045
    Abstract: A heating device includes a cylindrical body with a hollow interior and a heater inside the hollow interior. A first surface of the heater faces the inner surface of the cylindrical body. A heat transfer member is on a second surface of the heater. A grease is between the heater and the heat transfer member. A support member is provided including a first portion fixed to the second surface of the heater and a second portion contacting a surface of the heat transfer member. The support member includes a third portion between the first and second portions. The third portion does not contact the second surface of the heater between the first and second portions and provides a space for grease from between the heater and the heat transfer member to accumulate.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 30, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Sasuke Endo
  • Publication number: 20220260941
    Abstract: According to an embodiment, an image forming apparatus includes: a motor that drives a fixing device; and a controller. The motor outputs a signal corresponding to a driving current value of the motor. The controller performs a first operation where a magnitude value of the signal has fallen out of a first range while driving the motor in a first operation mode. The controller performs a second operation where the magnitude value of the signal has fallen out of a second range while driving the motor in a second operation mode.
    Type: Application
    Filed: October 26, 2021
    Publication date: August 18, 2022
    Inventor: Sasuke ENDO
  • Publication number: 20220260944
    Abstract: Provided is an image forming device capable of performing an operation corresponding to a defect occurring in a fixing device at a desired timing. The image forming device includes a conveyance unit, an image forming unit, a fixing device, a motor, and a control unit. The motor drives the fixing device and outputs a signal having a magnitude corresponding to a value of a drive current. The control unit, when conveyance of a print medium is stopped and when the motor is driven in a first operation mode, continues to drive the motor in the first operation mode, and performs a first operation when the magnitude of the signal is out of a first range, and when the conveyance of the print medium is stopped and when the motor is driven in a second operation mode, stops driving the motor in the second operation mode and then drives the motor in the first operation mode, and performs the first operation when the magnitude of the signal is out of the first range.
    Type: Application
    Filed: January 19, 2022
    Publication date: August 18, 2022
    Inventor: Sasuke Endo
  • Patent number: 11385580
    Abstract: According to one embodiment, a heating device includes a fixing belt configured to be rotated and a pressure roller configured to abut against the fixing belt and be driven to cause the fixing belt to rotate. A heater is configured to heat the fixing belt. A motor is configured to drive the pressure roller to rotate. A current sensor is configured to measure a driving current of the motor. A controller is configured to stop the heater based on the measured driving current.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: July 12, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Sasuke Endo
  • Publication number: 20220206422
    Abstract: A heating device includes a rotatable film, a heater including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor having first and second surfaces and including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A thickness of the first portion of the heat conductor from the first surface to the second surface is greater than a thickness of the second portion from the first surface to the second surface.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Inventors: Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kiyotaka MURAKAMI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Publication number: 20220171316
    Abstract: A heating unit includes a cylinder which rotates about an axis parallel to a first direction. A heater has a first surface abutting on an inner surface of the cylinder at a nip position. A support member is on a second surface of the heater and also contacts the cylinder. A first heating element is in the heater at a first position along the first direction. A second heating element in the heater is at a second position spaced from the first position. A first temperature sensor is above the first position. A locking portion of the heater is at a third position along the first direction. The locking portion engages the support member and restricts movement of the heater in the first direction. The first position is near a first outer edge of the cylinder. The second position is closer to a central portion of the cylinder.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Inventor: Sasuke ENDO
  • Publication number: 20220171314
    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: February 16, 2022
    Publication date: June 2, 2022
    Inventors: Kiyotaka MURAKAMI, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Publication number: 20220155710
    Abstract: An image processing apparatus includes a fixing unit including a fixing belt, and a heater configured to heat the fixing belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to, upon detecting an absence of a current flowing through the fixing belt, control the heater to not generate heat.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 19, 2022
    Inventors: Yohei DOI, Eiji SHINOHARA, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yuki KAWASHIMA, Kiyotaka MURAKAMI
  • Publication number: 20220121143
    Abstract: A heating unit includes a rotating cylinder rotating about an axis parallel to a first direction. A heater having a width in a second direction is on the inner surface of the cylinder. A support member holds the heater fixed relative to the cylinder and includes an upstream member adjacent to the heater in the second direction and a downstream member adjacent to the heater in the second direction. The heating unit may include, in some examples, a stay supporting the support member, a guide member on the stay, and a temperature sensor to measure a temperature of an inner surface of the cylinder.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Kousei MIYASHITA, Sasuke ENDO
  • Patent number: 11307522
    Abstract: A heating device includes a rotatable film, a heater including a substrate that extends along a first direction, and a heater element on the substrate and facing the film, a heat conductor having first and second surfaces and including a first portion contacting the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the substrate, and a temperature sensing element on the second surface at a position corresponding to the second portion. A thickness of the first portion from the first surface to the second surface is greater than a thickness of the second portion from the first surface to the second surface.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: April 19, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kazuhiko Kikuchi, Sasuke Endo, Masaya Tanaka, Ryota Saeki, Kiyotaka Murakami, Kousei Miyashita, Ryosuke Kojima, Yohei Doi, Yuki Kawashima, Eiji Shinohara
  • Patent number: 11281137
    Abstract: A heating unit includes a cylinder which rotates about an axis parallel to a first direction. A heater has a first surface abutting on an inner surface of the cylinder at a nip position. A support member is on a second surface of the heater and also contacts the cylinder. A first heating element is in the heater at a first position along the first direction. A second heating element in the heater is at a second position spaced from the first position. A first temperature sensor is above the first position. A locking portion of the heater is at a third position along the first direction. The locking portion engages the support member and restricts movement of the heater in the first direction. The first position is near a first outer edge of the cylinder. The second position is closer to a central portion of the cylinder.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 22, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Sasuke Endo
  • Patent number: 11281132
    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: Grant
    Filed: July 6, 2020
    Date of Patent: March 22, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kiyotaka Murakami, Kazuhiko Kikuchi, Sasuke Endo, Masaya Tanaka, Ryota Saeki, Kousei Miyashita, Ryosuke Kojima, Yohei Doi, Yuki Kawashima, Eiji Shinohara
  • Patent number: 11275330
    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: March 22, 2021
    Date of Patent: March 15, 2022
    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: 20220043379
    Abstract: In one embodiment, a heating device includes a tubular body and a heater within an interior region formed by the tubular body. A first temperature detector is disposed within the interior region. A first wire is connected to the first temperature detector on a first side of the first temperature detector facing a first direction parallel to the axial length of the tubular body. A second temperature detector is disposed within the interior region on a second side of the first temperature detector opposite the first side. The second temperature detector is spaced from the first temperature detector in a second direction opposite of the first direction. A second wire is connected to the second temperature detector on a side of the second temperature detector facing the second direction. The first wire and the second wire extend with each other to an outer end of the tubular body.
    Type: Application
    Filed: May 13, 2021
    Publication date: February 10, 2022
    Inventor: Sasuke ENDO
  • Publication number: 20220043377
    Abstract: A heating device for heating a medium on which an image can be formed includes a cylindrical belt, a first heating unit, and a second heating unit. The first and second heating units are inside the cylindrical belt and face an inner circumferential surface of the belt. A controller is configured to control the heating units to generate heat. When the medium is to be heated to reach an image fixing temperature at which the image can be fixed to the medium, the controller controls the first and second heating units to both generate heat. After the medium is heated to the image fixing temperature, the controllers control the first heating unit to generate heat, but not the second heating unit.
    Type: Application
    Filed: May 6, 2021
    Publication date: February 10, 2022
    Inventor: Sasuke ENDO
  • Patent number: 11243487
    Abstract: A heating unit includes a rotating cylinder rotating about an axis parallel to a first direction. A heater having a width in a second direction is on the inner surface of the cylinder. A support member holds the heater fixed relative to the cylinder and includes an upstream member adjacent to the heater in the second direction and a downstream member adjacent to the heater in the second direction. The support member has upstream ribs on the upstream member and downstream ribs on the downstream member, each rib having a curved shape facing the inner surface of the rotating cylinder and being spaced from each other in the first direction. The heating unit may include, in some examples, a stay supporting the support member, a guide member on the stay, and a temperature sensor.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: February 8, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kousei Miyashita, Sasuke Endo
  • Publication number: 20220035277
    Abstract: According to one embodiment, a heating device includes a fixing belt configured to be rotated and a pressure roller configured to abut against the fixing belt and be driven to cause the fixing belt to rotate. A heater is configured to heat the fixing belt. A motor is configured to drive the pressure roller to rotate. A current sensor is configured to measure a driving current of the motor. A controller is configured to stop the heater based on the measured driving current.
    Type: Application
    Filed: June 1, 2021
    Publication date: February 3, 2022
    Inventor: Sasuke ENDO
  • Publication number: 20210294251
    Abstract: A heating device includes a cylindrical body with a hollow interior and a heater inside the hollow interior. A first surface of the heater faces the inner surface of the cylindrical body. A heat transfer member is on a second surface of the heater. A grease is between the heater and the heat transfer member. A support member is provided including a first portion fixed to the second surface of the heater and a second portion contacting a surface of the heat transfer member. The support member includes a third portion between the first and second portions. The third portion does not contact the second surface of the heater between the first and second portions and provides a space for grease from between the heater and the heat transfer member to accumulate.
    Type: Application
    Filed: February 4, 2021
    Publication date: September 23, 2021
    Inventor: Sasuke ENDO
  • Patent number: 11126116
    Abstract: In accordance with an embodiment, a fixing device for fixing a toner image formed on a medium to the medium comprises a heating rotating member that is rotatably supported; a heater configured to heat the heating rotating member; a pressing member arranged at the inside of the heating rotating member and configured to abut against an inner peripheral surface of the heating rotating member; a pressing rotating member configured to be pressed against the pressing member across the heating rotating member to form a nip through which the medium passes; a support member configured to movably support the pressing member in a direction orthogonal to a rotation axis of the pressing rotating member; and a lubricant supply member arranged between the support member and the pressing member and impregnated with a lubricant.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: September 21, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Sasuke Endo