Patents by Inventor Haruyuki Hotta

Haruyuki Hotta 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: 12032308
    Abstract: An image forming apparatus includes (i) a housing including a first connector, (ii) a drum unit, (iii) a development unit including a containing portion containing toner and movable between an abutment position and a separation position, (iv) a detection unit including a light emitting element, a light receiving element, and a second connector electrically connected to the light emitting element and the light receiving element, and mounted on the development unit, and (v) a connection member connected to the first connector and the second connector to electrically connect the first connector and the second connector each. A length of the connection member is longer than a first distance from the first connector to the second connector when the development unit is located at the abutment position, and is longer than a second distance from the first connector to the second connector when the development unit is located at the separation position.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: July 9, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruyuki Hotta, Masayuki Sakai
  • Publication number: 20240061359
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Inventors: NOBUYUKI KOBAYASHI, KENICHI IIDA, MASAHIRO HAYAKAWA, MASAAKI SATO, HARUYUKI HOTTA
  • Patent number: 11874612
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: January 16, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuyuki Kobayashi, Kenichi Iida, Masahiro Hayakawa, Masaaki Sato, Haruyuki Hotta
  • Publication number: 20230168605
    Abstract: An image forming apparatus includes (i) a housing including a first connector, (ii) a drum unit, (iii) a development unit including a containing portion containing toner and movable between an abutment position and a separation position, (iv) a detection unit including a light emitting element, a light receiving element, and a second connector electrically connected to the light emitting element and the light receiving element, and mounted on the development unit, and (v) a connection member connected to the first connector and the second connector to electrically connect the first connector and the second connector each. A length of the connection member is longer than a first distance from the first connector to the second connector when the development unit is located at the abutment position, and is longer than a second distance from the first connector to the second connector when the development unit is located at the separation position.
    Type: Application
    Filed: November 17, 2022
    Publication date: June 1, 2023
    Inventors: Haruyuki Hotta, MASAYUKI SAKAI
  • Publication number: 20220155705
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Nobuyuki Kobayashi, Kenichi Iida, Masahiro Hayakawa, Masaaki Sato, Haruyuki Hotta
  • Patent number: 11269266
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 8, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuyuki Kobayashi, Kenichi Iida, Masahiro Hayakawa, Masaaki Sato, Haruyuki Hotta
  • Publication number: 20210041803
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using, a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 11, 2021
    Inventors: Nobuyuki Kobayashi, Kenichi Iida, Masahiro Hayakawa, Masaaki Sato, Haruyuki Hotta