Toshio Ogawa

Title: The Innovations of Toshio Ogawa

Introduction

Toshio Ogawa is a notable inventor based in Fukuroi, Japan. He has made significant contributions to the field of piezoelectric materials, particularly through his innovative patent. His work focuses on enhancing the performance of piezoelectric single crystals, which are essential in various applications, including sensors and actuators.

Latest Patents

Ogawa holds a patent for a domain-controlled piezoelectric single crystal and its fabrication method. This invention features a lateral vibration mode that achieves an electromechanical coupling factor k of not less than 70% and a piezoelectric constant -d of not less than 1200 pC/N. Additionally, it boasts a longitudinal vibration mode with an electromechanical coupling factor k of not less than 80% and a piezoelectric constant d of not less than 800 pC/N. The fabrication method involves applying a DC electric field ranging from 400 V/mm to 1500 V/mm for a maximum of two hours within a temperature range of 20°C to 200°C. This innovative approach allows for cooling or heating between various crystal temperature boundaries.

Career Highlights

Toshio Ogawa is associated with Kawatetsu Mining Co., Ltd., where he continues to develop and refine his inventions. His expertise in piezoelectric materials has positioned him as a key figure in the industry, contributing to advancements that enhance the functionality of electronic devices.

Collaborations

Ogawa has collaborated with notable colleagues, including Mitsuyoshi Matsushita and Yoshihito Tachi. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Toshio Ogawa's contributions to the field of piezoelectric materials through his innovative patent demonstrate his commitment to advancing technology. His work not only enhances the performance of piezoelectric single crystals but also paves the way for future developments in the industry.