Nobuaki Usui

Title: Nobuaki Usui: Innovator in Color Print Simulation

Introduction

Nobuaki Usui, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of color printing technology. With a total of six patents to his name, Usui has been at the forefront of innovations that simulate and enhance the quality of color prints.

Latest Patents

Among Usui’s latest patents is a method and apparatus for simulating color print that defines the illuminance spectrum of reflected light. This innovative approach involves obtaining reflection coefficients that represent both diffuse and specular reflections. The method utilizes a colorimetric system that targets an N-order color, constructing an N-dimensional correction space. This space is characterized by reference colors that are strategically positioned at the corners, ultimately facilitating the generation of accurate color data suitable for output devices.

Another notable patent by Usui employs a similar method but focuses on the construction of an N-dimensional correction space with specific weighting coefficients. Through this methodology, reflection coefficients are determined in a sophisticated manner that involves dividing the correction space into multiple partial areas. This unique approach enables precise calculations of reflection coefficients that enhance the fidelity of printed colors.

Career Highlights

Nobuaki Usui has had a remarkable career, with his expertise being recognized while working at prominent companies such as Dainippon Screen Mfg. Co., Ltd. and Dainippon Screen Manufacturing Co., Ltd. His work in these companies has played a pivotal role in advancing the technologies surrounding color printing and imaging.

Collaborations

Throughout his career, Usui has collaborated with talented professionals, including Atsushi Imamura and Shigeaki Shimazu. These collaborations have not only enriched his work but have also contributed to the development of innovative solutions in the printing industry.

Conclusion

Nobuaki Usui stands out as a pioneering inventor in the realm of color print simulation. His patented innovations have the potential to transform how color prints are realized and processed. As the technology continues to evolve, Usui’s contributions will undoubtedly influence future advancements in the field of color printing.