Sunao Yoshihara

Title: Sunao Yoshihara: Innovator in Ink Composition and Light Conversion Technologies

Introduction

Sunao Yoshihara is a prominent inventor based in Sakura, Japan, known for his forward-thinking contributions in the field of ink compositions and light conversion technologies. With a total of six patents to his name, Yoshihara's work has garnered significant attention in the industry, particularly for its application in producing high-efficiency color filter pixel units.

Latest Patents

Yoshihara's latest patents showcase his innovative spirit and technical expertise. One notable invention is an ink composition that enables the formation of a color filter pixel unit with high external quantum efficiency. This ink contains light-emitting nanocrystal particles, light-diffusing particles, and at least two monomers characterized by precise Hansen solubility parameters (δd, δp, and δh). The specified ranges (16.0 MPa ≤ δd < 18.0 MPa; 2.5 MPa ≤ δp < 5.5 MPa; 2.5 MPa ≤ δh < 8.0 MPa) ensure optimal performance. Another significant patent involves an ink composition that includes light-emitting nanocrystal particles and a photopolymerizable compound with specific Log P values, as well as a light conversion layer that integrates a plurality of pixel units formed from the cured product of this innovative ink composition.

Career Highlights

Yoshihara's career has been marked by his tenure at Dic Corporation, where he honed his skills in material science and technology. His experience at Dic Corporation in Tokyo further solidified his expertise in developing advanced ink formulations and their practical applications in optical devices. His contributions have been pivotal in enhancing the capabilities of color filters used in display technologies.

Collaborations

Throughout his career, Yoshihara has collaborated with notable colleagues such as Yoshinori Katayama and Hirotomo Sasaki. These partnerships have been integral in the evolution of his inventions, leading to a rich exchange of ideas and innovative concepts within the realm of ink composition and light conversion technologies.

Conclusion

Sunao Yoshihara's contributions to the field of innovations in ink compositions and light conversion layers position him as a key figure in advancing technology in this sector. His inventive spirit and collaborative work, together with his patents, reflect a commitment to enhancing the efficiency and functionality of optical materials in practical applications.