Company Filing History:
Years Active: 2002-2007
Title: Tsuyoshi Shimoda: Innovator in Optical Waveguide Technology
Introduction
Tsuyoshi Shimoda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical waveguide technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of optical devices, which are crucial in modern telecommunications and data transmission.
Latest Patents
Among his latest patents, the "Optical waveguide circuit and manufacturing method thereof" stands out. This invention features an optical waveguide circuit that includes multiple first cores arranged at widening intervals from a branch or joining point of optical signals. The design incorporates a clad that fills these first cores and second cores positioned between them, enhancing the optical performance. The refractive index of the second core is greater than that of the clad, ensuring a smooth boundary and optimized film thickness.
Another notable patent is the "Optical coupling device and process for fabrication thereof." This device utilizes an optical waveguide with a specific refractive index difference between the clad and core layers. It serves as a convergent/divergent spot size converter, allowing for high production yields without the need to reduce the core layer's cross-section.
Career Highlights
Tsuyoshi Shimoda is currently employed at NEC Corporation, a leading technology company known for its innovations in information technology and electronics. His work at NEC has allowed him to push the boundaries of optical technology, contributing to advancements that benefit various industries.
Collaborations
Throughout his career, Shimoda has collaborated with notable colleagues, including Kazuhiro Iida and Masatoshi Tokushima. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Tsuyoshi Shimoda's contributions to optical waveguide technology exemplify the impact of innovative thinking in the field of telecommunications. His patents reflect a commitment to advancing technology and improving the efficiency of optical devices.