Patents by Inventor Keisaku Ushioda

Keisaku Ushioda 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).

  • Color image forming apparatus
    Patent number: 4593991
    Abstract: A color image forming apparatus wherein a plurality of developing devices are supported on a supporting member which is rotatable to revolve the developing devices to develop the latent images formed on an image bearing member corresponding to color components. When a desired one of the developing devices are to be moved to a developing station, the direction of the revolution is selected depending on the position currently occupied by the desired developing device.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: June 10, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Aoki, Keisaku Ushioda