Patents by Inventor Shuma Hiasa

Shuma Hiasa 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: 20240152073
    Abstract: An image forming apparatus includes a developing device including a developing roller and a storage frame including a storage portion configured to store toner, a body frame with an opening, a toner cartridge which is configured to store the toner, which is attachable to and detachable from the developing device through the opening, which is movable to an attached position and a retracted position, and which is configured to supply the toner to the storage portion in a state in which the toner cartridge is at the attached position, and a moving device configured to move the toner cartridge from the attached position to the retracted position. The toner cartridge is configured such that at least part of the toner cartridge projects outside the body frame in a state in which the toner cartridge is at the retracted position.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa, Tachio Kawai
  • Publication number: 20240152074
    Abstract: An image forming apparatus includes a rotary including a first developing roller, a second developing roller, a first storage frame, and a second storage frame, a body frame with an opening, a first toner cartridge, a second toner cartridge, a first support member which is configured to support the first toner cartridge, and a second support member which is configured to support the second toner cartridge. The first support member is movable with respect to the first storage frame such that the first toner cartridge moves from the first attached position to the first retracted position. The second support member is movable with respect to the second storage frame such that the second toner cartridge moves from the second attached position to the second retracted position.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa, Tachio Kawai, Kenji Watanabe
  • Publication number: 20240152083
    Abstract: An image forming apparatus includes a rotary configured to rotate and including a developing roller and a storage frame including a storage portion configured to store toner, a body frame with an opening, a toner cartridge which is attachable to and detachable from the rotary through the opening, which is movable to an attached position and a retracted position, a moving device configured to move the toner cartridge from the attached position to the retracted position, and an opening/closing member provided to be movable between a closed position and an open position. The opening/closing member is configured to move from the closed position to the open position in an interconnected manner with movement of the toner cartridge from the attached position to the retracted position by the moving device.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa
  • Publication number: 20240152091
    Abstract: An image forming apparatus includes a developing device including a developing roller and a storage frame including a storage portion, a body frame with an opening, a toner cartridge which is configured to store the toner, which is attachable to and detachable from the developing device through the opening, which is movable to an attached position and a retracted position where the toner cartridge is retracted from the attached position, with respect to the storage frame, and which is configured to supply the toner to the storage portion in a state in which the toner cartridge is at the attached position, a moving device configured to move the toner cartridge from the attached position to the retracted position and move the toner cartridge from the retracted position to the attached position, and a driving device including a drive source and configured to drive the moving device.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Inventors: Jumpei Nitta, Tomoya Tateishi, Osamu Sasaoka, Kohei Koguchi, Shuma Hiasa
  • Publication number: 20240094658
    Abstract: An image forming apparatus which can be replenished with toner using a replenishment cartridge and communicates with a memory device of the replenishment cartridge via a first electric contact portion and a second electric contact portion after a replenishment cartridge is attached to the image forming apparatus in an installation portion. The replenishment cartridge is prevented from being detached by a regulation unit when it is in the replenishment position.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 21, 2024
    Inventors: Akinori Mitsumata, Takeo Kawanami, Shuma Hiasa
  • Patent number: 11841643
    Abstract: An image forming apparatus which can be replenished with toner using a replenishment cartridge and communicates with a memory device of the replenishment cartridge via a first electric contact portion and a second electric contact portion after a replenishment cartridge is attached to the image forming apparatus in an installation portion. The replenishment cartridge is prevented from being detached by a regulation unit when it is in the replenishment position.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinori Mitsumata, Takeo Kawanami, Shuma Hiasa
  • Publication number: 20220146961
    Abstract: An image forming apparatus which can be replenished with toner using a replenishment cartridge and communicates with a memory device of the replenishment cartridge via a first electric contact portion and a second electric contact portion after a replenishment cartridge is attached to the image forming apparatus in an installation portion. The replenishment cartridge is prevented from being detached by a regulation unit when it is in the replenishment position.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 12, 2022
    Inventors: Akinori Mitsumata, Takeo Kawanami, Shuma Hiasa