Shu Shirai

Title: Innovations by Shu Shirai

Introduction

Shu Shirai is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of color printing and density calibration. With a total of 3 patents to his name, his work has had a lasting impact on the industry.

Latest Patents

Shu Shirai's latest patents include a density calibration chart that features color patches arranged in a check pattern. These patches display densities from shadow to highlight in decreasing order. Another important patent is a color converting method that preserves a 0% density for a specific color in the pre-conversion state. This ensures that the density remains unchanged after conversion, utilizing a translation table. Additionally, he has developed density gradation methods that finely represent highlight and shadow regions compared to non-highlight and non-shadow areas. His innovative density correction method involves supplying energy to a non-image area during printing, ensuring that no dot is produced when applying a second color.

Career Highlights

Throughout his career, Shu Shirai has worked with prominent companies such as Fuji Photo Film Company, Limited and Seiko Instruments Information Device Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in printing technology.

Collaborations

Shu Shirai has collaborated with talented individuals in the field, including Mitsuru Sawano and Akihiro Sadaki. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Shu Shirai's contributions to the field of color printing and density calibration are noteworthy. His patents reflect a deep understanding of the complexities involved in color conversion and density management. His work continues to influence the industry and inspire future innovations.