Akitaka Yasujima

Title: Akitaka Yasujima: Innovator in Photoconductive Technology

Introduction

Akitaka Yasujima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of photoconductive elements, holding a total of 3 patents. His work focuses on improving the efficiency and durability of photoconductive materials used in various applications.

Latest Patents

Yasujima's latest patents include a layered persistent photoconductive element that comprises a pigment layer and an electroconductive support. This innovative element features a pigment layer primarily composed of a phthalocyanine pigment or Indanthrene Blue GCD, along with a polymer layer made mainly of polyvinyl carbazole. The polymer layer enhances the photoconductive sensitivity and prolongs photoconductivity, making it highly useful in electrophotographic processes. Additionally, he has developed an infrared interference type film thickness measuring method. This method involves applying infrared light to a polymer film and spectroscopically separating the light to measure the film's thickness accurately.

Career Highlights

Throughout his career, Yasujima has worked with prominent companies such as Asahi-Dow Limited and Asahi Kasei Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in photoconductive technologies and contribute to advancements in the field.

Collaborations

Yasujima has collaborated with notable coworkers, including Shingo Ishikawa and Naoyuki Shiratori. Their combined efforts have led to innovative solutions and improvements in photoconductive materials.

Conclusion

Akitaka Yasujima's contributions to the field of photoconductive technology are significant and impactful. His innovative patents and collaborations highlight his dedication to advancing this area of research. His work continues to influence the development of efficient photoconductive elements in various applications.