Yasuhisa Naritomi

Title: Innovations of Yasuhisa Naritomi

Introduction

Yasuhisa Naritomi is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of lithographic printing technology. With a total of 3 patents to his name, Naritomi's work has advanced the capabilities of presensitized plates used in printing.

Latest Patents

One of his latest patents is a "Dry presensitized plate with photosensitive layer containing organotin." This invention involves a presensitized plate designed for lithographic printing that requires no dampening water. It consists of a substrate with a primer layer, a photodimerizable photosensitive layer containing organotin compounds, and a silicone rubber layer. The innovative design ensures strong adhesiveness between the layers, broad developing latitude, and excellent image reproducibility.

Another significant patent is the "Method for making negative working O-quinone diazide containing dry." This method outlines the process for creating a dry planographic printing plate. It includes exposing a presensitized plate through a negative transparency, developing the plate, and treating it with a basic compound to enhance its properties.

Career Highlights

Naritomi is currently associated with Fuji Photo Film Company, Limited, where he continues to innovate in the field of printing technology. His work has been instrumental in improving the efficiency and quality of printing processes.

Collaborations

Throughout his career, Naritomi has collaborated with notable colleagues, including Hiroshi Takahashi and Toshihiko Hiruma. These collaborations have contributed to the advancement of their shared field.

Conclusion

Yasuhisa Naritomi's contributions to lithographic printing technology through his patents and collaborations highlight his importance as an inventor. His innovative approaches continue to shape the industry and improve printing methods.