Nobuharu Oka

Title: Nobuharu Oka: Innovator in Color Electrophotography

Introduction

Nobuharu Oka is a notable inventor from Shiga, Japan, recognized for his contributions to the field of electrophotography. His innovative approach has led to advancements in the way multi-color images are produced, enhancing the quality and efficiency of printing technologies.

Latest Patents

Oka holds a patent for a "Method of Color Electrophotography." This invention involves a technique where toner images are sequentially superposed on a photosensitive material sheet to create a multi-color image using a liquid developer. The method ensures that the photosensitive material passes through a conductive doctor member and an air blasting member immediately after development. This process allows for the removal of excess developer while maintaining a uniform liquid layer on the surface, resulting in a clear image free from surface fogging.

Career Highlights

Throughout his career, Nobuharu Oka has worked with prominent companies such as Ishihara Sangyo Kaisha, Ltd. and Dainippon Screen Mfg. Co., Ltd. His experience in these organizations has contributed significantly to his expertise in electrophotography and image processing technologies.

Collaborations

Oka has collaborated with notable colleagues, including Sadao Murasawa and Hajime Murakami. Their combined efforts have furthered advancements in the field and fostered innovation in imaging technologies.

Conclusion

Nobuharu Oka's contributions to color electrophotography exemplify the impact of innovative thinking in technology. His patented method not only improves image quality but also enhances the efficiency of the printing process.