Tsutomu Nomoto

Title: Tsutomu Nomoto: Innovator in Optical Technologies

Introduction

Tsutomu Nomoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technologies, holding a total of 13 patents. His innovative work has paved the way for advancements in optical filter fabrication and organic electroluminescent devices.

Latest Patents

Nomoto's latest patents include an optical filter fabrication method and apparatus, as well as an optical filter itself. The optical filter is manufactured by placing a photosensitive optical fiber in a spiral arrangement on a fiber holder, which preferably has a spiral groove for holding the fiber. The fiber is exposed to ultraviolet light through a phase mask that features a spiral diffraction grating, resulting in the formation of an in-fiber Bragg grating. This design allows for convenient scanning of the fiber by an ultraviolet beam as the fiber holder and phase mask rotate on a stage. Additionally, the fiber can be compactly packaged between the fiber holder and a cover, which can be formed by coating a substrate with layers of polymer material, with the spiral groove created through photolithographic patterning.

Another notable patent involves an organic electroluminescent light-emitting array and optical head assembly. In this invention, a light-emitting array and its driving circuitry are integrated into a single device. The driving circuitry is formed in a semiconductor substrate and features an array of output terminals on its surface. Organic electroluminescent elements are positioned directly over these output terminals, ensuring electrical contact. The electroluminescent elements are powered by direct current, and the optical head assembly incorporates one or more of these light-emitting arrays mounted on a printed circuit board.

Career Highlights

Throughout his career, Tsutomu Nomoto has worked with notable companies such as Oki Electric Industry Co., Ltd. and Casio Computer Co., Ltd. His experience in these organizations has contributed to his expertise in optical technologies and innovation.

Collaborations

Nomoto has collaborated with several talented individuals in his field, including Akihiko Nishiki and Masumi Koizumi. These collaborations have further enhanced his work and contributions to optical technologies.

Conclusion

Tsutomu Nomoto is a distinguished inventor whose work in optical technologies has led to numerous patents and innovations. His contributions continue to influence the field and inspire