Patents by Inventor Takahisa Hatori

Takahisa Hatori 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).

  • Image forming apparatus to which toner container is attachable
    Patent number: 11086259
    Abstract: A developing device develops an electrostatic latent image formed on a photosensitive drum. A bottle rotation sensor detects rotation of a toner bottle that stores toner. A bottle motor drives the toner bottle for rotation to thereby discharge toner from the toner bottle. A hopper-internal toner sensor detects presence/absence of toner stored in a hopper that stores toner discharged from the toner bottle. A replenishment unit replenishes toner stored in the hopper to the developing device. Which of failure of the bottle rotation sensor and rotation failure of the toner bottle has occurred is determined based on a detection result of the bottle rotation sensor and a detection result of the hopper-internal toner sensor.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: August 10, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahisa Hatori
  • IMAGE FORMING APPARATUS TO WHICH TONER CONTAINER IS ATTACHABLE
    Publication number: 20200218188
    Abstract: A developing device develops an electrostatic latent image formed on a photosensitive drum. A bottle rotation sensor detects rotation of a toner bottle that stores toner. A bottle motor drives the toner bottle for rotation to thereby discharge toner from the toner bottle. A hopper-internal toner sensor detects presence/absence of toner stored in a hopper that stores toner discharged from the toner bottle. A replenishment unit replenishes toner stored in the hopper to the developing device. Which of failure of the bottle rotation sensor and rotation failure of the toner bottle has occurred is determined based on a detection result of the bottle rotation sensor and a detection result of the hopper-internal toner sensor.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 9, 2020
    Inventor: Takahisa Hatori