Hiroaki Hiratsuka

Title: Hiroaki Hiratsuka: Innovator in Electrophotographic Technology

Introduction

Hiroaki Hiratsuka is a notable inventor based in Tomobe, Japan. He has made significant contributions to the field of electrophotography, particularly with his innovative patent related to photoreceptors. His work has implications for laser printing technology, showcasing his expertise in materials science and engineering.

Latest Patents

Hiratsuka holds a patent for an electrophotographic photoreceptor and its preparation. This invention involves an electrically conductive substrate layered with charge generating materials, specifically chloroaluminium phthalocyanine and chloroaluminium monochlorophthalocyanine. These materials are evaporated in a vacuum over the substrate, followed by treatment with organic solvents such as tetrahydrofuran, methanol, and acetone. The resulting layer exhibits high photosensitivity in the near-infrared region, particularly at wavelengths over 750 nm, making it suitable for use in laser printing machines.

Career Highlights

Hiratsuka is associated with Nippon Telegraph and Telephone Public Corporation, where he has been able to apply his research and innovations in practical settings. His work has contributed to advancements in printing technology, enhancing the efficiency and quality of laser printing processes.

Collaborations

Hiratsuka has collaborated with notable colleagues, including Koichi Arishima and Takeshi Okada. These partnerships have likely fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Hiroaki Hiratsuka's contributions to electrophotographic technology highlight his role as a key inventor in this field. His patent for an advanced photoreceptor demonstrates his commitment to improving laser printing technology. His work continues to influence the industry and pave the way for future innovations.