Company Filing History:
Years Active: 2024-2025
Title: Innovations by Shosei Kubota in Optical Film Technology
Introduction
Shosei Kubota, a prominent inventor based in Kashiwa, Japan, has made significant contributions to the field of optical film technology. With a total of three patents to his name, his innovations have pushed the boundaries of image display devices, focusing on enhancing visual performance and color uniformity.
Latest Patents
Among Shosei Kubota's latest patents is an advanced optical film designed to suppress rainbow unevenness when viewed with the naked eye, without increasing the in-plane phase difference. This innovative optical film features a low-refractive index layer on a biaxially stretched plastic film, which ensures that the in-plane phase difference remains at 2500 nm or less. The film possesses specific characteristics in terms of color measurement, specifically ΔEab, derived from comparing two distinct laminate conditions.
Furthermore, he has introduced another optical film that eliminates rainbow unevenness and provides uniform color tones when viewed at an oblique angle. This film incorporates a unique configuration where the plastic film has a slow axis and a fast axis, along with a low-refractive index layer on its surface. It employs a sophisticated methodology for measuring color values at several points, ultimately ensuring a high standard of visual quality.
Career Highlights
Kubota works at Dai Nippon Printing Co., Ltd., a leader in the printing and optical solutions industry. His focus on developing optical films has positioned him as a key innovator within the company, contributing to advancements that enhance consumer electronics and display technologies.
Collaborations
Shosei Kubota collaborates closely with fellow inventors Yoshiko Tanaka and Akinobu Ushiyama, combining their expertise to drive forward innovative projects that have potential applications across various sectors of the optical technology market.
Conclusion
Through his expert knowledge and inventive spirit, Shosei Kubota continues to make noteworthy advancements in optical film technology. His recent patents not only demonstrate his commitment to enhancing visual quality in image display devices but also highlight the importance of collaboration within the innovation landscape. As he continues to innovate, he plays a vital role in shaping the future of optical technologies.