Tsugio Tokumasu

Title: Tsugio Tokumasu: Innovator in Magneto-Optical Devices

Introduction

Tsugio Tokumasu is a prominent inventor based in Minato-ku, Japan. He has made significant contributions to the field of magneto-optical devices, holding a total of 6 patents. His innovative work has led to advancements in optical control and device efficiency.

Latest Patents

One of Tokumasu's latest patents is a magneto-optical device that allows for a reduction in size while increasing the speed of optical control. This device simplifies the power supply structure and its control, maintaining a Faraday rotation angle in an arbitrary state even after the excitation current is shut off. The design includes a magnetic yoke made of high-permeability material, with a coil wound on pillar portions and a magneto-optical element arranged in an open-magnetic-circuit region.

Another notable patent is a variable optical filter that consists of a first polarizer, a first phase difference element, a variable Faraday rotator, a second phase difference element, and a second polarizer. These components are arranged in a specific order along the optical axis, allowing for the generation of a variable Faraday rotation and phase differences.

Career Highlights

Throughout his career, Tsugio Tokumasu has worked with notable companies such as FDK Corporation and Fujitsu Corporation. His experience in these organizations has contributed to his expertise in developing advanced optical technologies.

Collaborations

Tokumasu has collaborated with several professionals in his field, including Hidenori Nakada and Hiromitsu Umezawa. These collaborations have further enhanced his innovative capabilities and contributions to magneto-optical technology.

Conclusion

Tsugio Tokumasu is a distinguished inventor whose work in magneto-optical devices has led to significant advancements in the field. His patents reflect a commitment to innovation and efficiency, making him a key figure in optical technology development.