Giichi Marushima

Title: Giichi Marushima: Innovator in Electrophotographic Technology

Introduction

Giichi Marushima is a notable inventor based in Komae, Japan. He has made significant contributions to the field of electrophotography, holding a total of 3 patents. His work has advanced the technology used in creating electrostatic images, which are essential in various printing and imaging applications.

Latest Patents

One of Marushima's latest patents is an electrophotographic process and apparatus designed for forming an electrostatic image on a photosensitive plate. This innovative process involves a conductive base, a photoconductive layer that exhibits either p-type or n-type semiconductivity, and an insulative layer. The photosensitive plate is characterized by having carrier charge of a polarity corresponding to the conductivity type of the photoconductive layer, which is injectable from the conductive base into the photoconductive layer. The process includes applying a charge of opposite polarity to the insulative layer, exposing the photoconductive layer to activating image light, and ultimately forming a high contrast electrostatic image.

Career Highlights

Giichi Marushima is currently associated with Canon Kabushiki Kaisha, a leading company in imaging and printing technology. His work at Canon has allowed him to develop and refine his innovative ideas in electrophotography, contributing to the company's reputation for excellence in imaging solutions.

Collaborations

Marushima has collaborated with notable coworkers such as Shinkichi Takahashi and Hiroshi Tanaka. Their combined expertise has fostered advancements in the field of electrophotography, enhancing the capabilities of imaging technologies.

Conclusion

Giichi Marushima's contributions to electrophotographic technology have made a lasting impact on the industry. His innovative patents and collaborations continue to shape the future of imaging solutions.