Patents by Inventor Akihiro Takafuji

Akihiro Takafuji 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).

  • Corona discharge device
    Patent number: 5351111
    Abstract: A corona discharge device includes a corona discharge electrode, and a control electrode interposed between the corona discharge electrode and a target object to be corona discharged for controlling a surface potential of the target object. The control electrode includes a film coating processed portion with a conductive dry film coating and an unprocessed portion with no film coating formed in at least one of two end portions of the control electrode in a longitudinal direction of the control electrode. The unprocessed portion of the control electrode has an opening ratio smaller than that of the film coating processed portion.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: September 27, 1994
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihiro Takafuji, Osamu Shimizu