Tsuyoshi Tokiwa

Title: Tsuyoshi Tokiwa and His Optical Coupling Device Patent.

Introduction

Tsuyoshi Tokiwa is an inventor associated with Yokohama, Japan. His work includes a patented optical coupling device and high-frequency device, and his professional affiliations include Toshiba Electronic Devices & Storage Corporation and Kabushiki Kaisha Toshiba.

Latest Patents

The provided information lists one patent for Tokiwa: “Optical Coupling Device and High Frequency Device.” The invention combines a light-receiving element with first and second output terminals, a light-emitting element positioned on the receiver, and a switching element arranged beside it. The switch’s main and control terminals connect to the receiver’s output terminals, while an electrode plate connects to the switch’s second main terminal. A sealing member covers the light-receiving element, light-emitting element, and switching element. This arrangement integrates optical coupling and switching components in a compact device structure.

Career Highlights

Tokiwa’s listed company affiliations are Toshiba Electronic Devices & Storage Corporation and Kabushiki Kaisha Toshiba. The supplied information does not specify his roles or dates of employment at these organizations. His patent record includes 1 patent.

Collaborations

Yoshio Noguchi and Kazuki Tanaka are identified as Tokiwa’s coworkers. The available information does not describe their specific contributions to the patent.

Conclusion

Tsuyoshi Tokiwa’s listed invention brings together optical components, switching elements, and an electrode structure in a sealed device, reflecting his documented connection to Toshiba-affiliated companies and collaborators.