Patents by Inventor Yoshitaka Taruno

Yoshitaka Taruno 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 and image forming method
    Patent number: 8755711
    Abstract: When printing, an image forming apparatus determines, based on a threshold voltage corresponding to a print speed during printing, whether or not a corona wire of a charger needs to be cleaned. On the basis of whether or not a monitoring voltage corresponding to a current value of a charged bias, which is applied to the corona wire by a charged-bias high-voltage power supply, is equal to or more than a predetermined threshold voltage corresponding to the print speed during printing, the image forming apparatus determines whether or not the corona wire needs to be cleaned.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: June 17, 2014
    Assignee: Murata Machinery, Ltd.
    Inventors: Takahiro Sasai, Yuji Suzuki, Yoshitaka Taruno
  • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    Publication number: 20120163835
    Abstract: When printing, an image forming apparatus determines, based on a threshold voltage corresponding to a print speed during printing, whether or not a corona wire of a charger needs to be cleaned. On the basis of whether or not a monitoring voltage corresponding to a current value of a charged bias, which is applied to the corona wire by a charged-bias high-voltage power supply, is equal to or more than a predetermined threshold voltage corresponding to the print speed during printing, the image forming apparatus determines whether or not the corona wire needs to be cleaned.
    Type: Application
    Filed: August 13, 2010
    Publication date: June 28, 2012
    Applicant: MURATA MACHINERY, LTD.
    Inventors: Takahiro Sasai, Yuji Suzuki, Yoshitaka Taruno