Masanobu Isshiki

Title: **Innovative Contributions of Masanobu Isshiki in the Field of Transparent Substrates**

Introduction

Masanobu Isshiki, an accomplished inventor based in Tokyo, Japan, has made significant strides in the development of transparent substrates and their associated technologies. With a portfolio boasting three patents, Isshiki's innovations focus primarily on antiglare films and layered coatings designed to enhance optical performance.

Latest Patents

Among Masanobu Isshiki's most notable patents is an antiglare film featuring specified surface roughness and surface inclination. This innovation includes a transparent substrate complemented by a precisely engineered antiglare film. The film consists of a low refractive index layer, which has a refractive index ranging from 1.4 to 1.8, and a high refractive index layer exhibiting a refractive index at least 0.1 higher than that of the low refractive index layer. Furthermore, the film design incorporates an area ratio of less than 15% for surface inclinations of 0.5° or less, ensuring optimal anti-reflective properties while maintaining an average length of roughness elements of 50 μm or less.

Another noteworthy patent filed by Isshiki pertains to a transparent substrate equipped with a laminated film. This revolutionary substrate comprises multiple layers: notably, a first dielectric layer, a crystallinity-improving layer enriched with zirconium nitride (ZrN), a functional layer composed of selected metal nitrides, and a subsequent second dielectric layer. The innovative arrangement of these layers facilitates enhanced performance characteristics, with strict control over oxygen concentration at the boundary between the crystallinity-improving and functional layers, maintaining it at or below 20 atom%.

Career Highlights

Throughout his professional journey, Masanobu Isshiki has contributed his expertise to esteemed organizations such as AGC Inc. and AGC Glass Europe. His innovative work, particularly in the field of optical materials, has positioned him as a valuable asset in the industry.

Collaborations

Isshiki's collaborations with fellow professionals such as Toru Ikeda and Yosuke Takeda have further enriched his contributions to the field. The exchange of ideas and expertise among these inventors emphasizes the collaborative spirit within the research community, leading to groundbreaking advancements in materials technology.

Conclusion

Masanobu Isshiki's continued focus on innovation and his impressive patent portfolio underscore his pivotal role in advancing transparent substrate technologies. As the demand for high-performance optical materials grows, Isshiki's inventions will undoubtedly impact various applications, setting new standards in the industry.