Patents by Inventor Takuzu Yoneda

Takuzu Yoneda 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).

  • Publication number: 20050191574
    Abstract: An image forming apparatus performs electrophotographic image forming using a toner and includes an image bearing member configured to bear an electrostatic latent image on a surface thereof, a developing mechanism configured to develop the electrostatic latent image in to a toner image by using a toner, a transfer mechanism configured to transfer the toner image from the image bearing member to an image receiver, a cleaning mechanism including a cleaning blade and configured to remove a residual toner on the image bearing member after toner image is transferred to the image receiver. The toner includes a binder resin and a colorant, forms a toner powder layer, and satisfies an inequality Y??0.05X+0.029, in which “X” expresses a porosity of the toner powder layer after uniformly compressed at a constant force and “Y” expresses a torque value obtained by rotatably sticking a conical rotor into the toner powder layer.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 1, 2005
    Inventors: Toshio Koike, Tokuya Ojimi, Takaaki Tawada, Takeshi Shintani, Yuji Arai, Takuzu Yoneda, Masanori Kawasumi, Masami Tomita, Kazuhiko Umemura, Ken Amemiya