Patents by Inventor Hiroki Hanayama

Hiroki Hanayama 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
    Publication number: 20240411260
    Abstract: An image forming apparatus includes a photosensitive member, a charging member, a developing member, a contacting member contacting the developing member, and first to third power sources. The first power source generates a first voltage and applies it to the charging member. The second power source generates a second voltage, lower than the first voltage, from the first voltage and applies it to the contacting member. The third power source generates a third voltage, lower than the second voltage, from the second voltage and applies it to the developing member.
    Type: Application
    Filed: August 20, 2024
    Publication date: December 12, 2024
    Inventors: Hiroki Hanayama, Hiroki Asano
  • Image forming apparatus
    Patent number: 12092983
    Abstract: An image forming apparatus includes a photosensitive member, a charging member, a developing member, a contacting member contacting the developing member, and first to third power sources. The first power source generates a first voltage and applies it to the charging member. The second power source generates a second voltage, lower than the first voltage, from the first voltage and applies it to the contacting member. The third power source generates a third voltage, lower than the second voltage, from the second voltage and applies it to the developing member.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: September 17, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Hanayama, Hiroki Asano
  • IMAGE FORMING APPARATUS
    Publication number: 20230152745
    Abstract: An image forming apparatus includes a photosensitive member, a charging member, a developing member, a first contacting member contacting to the developing member, and first to third power sources. The first power source generates a first voltage lower and supply to the charging member. The second power source generates a second voltage lower than the first voltage from the first voltage and applies to the first contacting member. The third power source generates a third voltage lower than the second voltage from the second voltage and applies to the developing member.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 18, 2023
    Inventors: Hiroki Hanayama, Hiroki Asano