Atsuko Yamamoto

Title: Atsuko Yamamoto: Inventor in Electrostatic Imaging

Introduction

Atsuko Yamamoto is an inventor based in Komae, Japan, whose work includes methods and materials for developing electrostatic images. She is associated with Canon Kabushiki Kaisha and is credited with 3 patents.

Latest Patents

Method for Developing Electrostatic Latent Image with Non-Magnetic Toner. This patent describes developing electrostatic latent images using a thin, uniform layer of non-magnetic toner. The method controls the toner layer’s electric charge per unit area and packing density to support stable image development.

Process for Developing Electrostatic Images and Toner Therefor. This patent concerns a substantially non-magnetic toner and a process for forming it into a thin layer on a toner-carrying member. The layer is transported to a developing zone, where it develops an electrostatic image on an image-bearing member. The described toner binder uses a polymer with a specified molecular-weight distribution, preferably including a copolymer of a vinyl monomer and an aminoacrylic monomer.

Career Highlights

Yamamoto’s listed patent work focuses on toner composition and the controlled development of electrostatic images. These inventions address how toner is formulated, carried, and applied during image formation.

Collaborations

Yamamoto’s listed coworkers include Eiichi Imai and Takeshi Ikeda. Her work is associated with Canon Kabushiki Kaisha.

Conclusion

Atsuko Yamamoto’s patent contributions center on non-magnetic toner and processes for producing stable electrostatic images.