Patents by Inventor Akitoshi Toyota

Akitoshi Toyota 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: 11353805
    Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: June 7, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
  • Publication number: 20210405577
    Abstract: An apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion and a replenishment port, a transfer portion configured to transfer a developer image on an image bearing member onto a recording material, a supporting tray including a supporting surface configured to support the recording material thereon, and a discharge portion configured to discharge the recording material, onto which the developer image has been transferred, on the supporting surface, wherein the supporting surface has an opening portion opening such that the replenishment port is exposed through the supporting surface, and wherein an opening/closing member configured to be movable between a closed position where the opening/closing member covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed is provided.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Tomio Noguchi, Masaaki Sato, Kenji Matsuzaka, Koji Fujinaka, Takao Sameshima, Akitoshi Toyota, Yuichiro Inaba, Kenichi Iida
  • Publication number: 20210405552
    Abstract: An apparatus includes an image bearing member, a developer container having a replenishment port, a developer bearing member, a detection portion configured to output remainder amount information corresponding to the amount of developer accommodated in the developer container, a notification portion capable of notifying a first state, and a second state, and a control portion, wherein the maximum amount of the developer that the developer container is capable of accommodating is larger than a value obtained by adding the amount of the developer accommodated in a replenishment container containing the developer for replenishment to the first amount, and wherein notification of the second state corresponds to notification of a case where the amount of the developer remaining in the developer container is larger than a case where the amount of the developer remaining in the developer container is the smallest.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Inventors: Masaaki Sato, Koji Wada, Tsuyoshi Ogawa, Koji Fujinaka, Takao Sameshima, Tomio Noguchi, Akitoshi Toyota, Susumu Nittani
  • Publication number: 20210255562
    Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
  • Patent number: 11022908
    Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
  • Publication number: 20210132521
    Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota