Takekazu Shigenai

Title: Innovations by Takekazu Shigenai: Pioneering Approaches in Piezoelectric Technology

Introduction

Takekazu Shigenai is an accomplished inventor based in Chiba, Japan, recognized for his significant contributions to the field of piezoelectric technology. With two patents to his name, Shigenai has developed innovative methods that enhance the manufacturing and properties of piezoelectric films, showcasing his expertise and dedication to advancing technology.

Latest Patents

Shigenai's latest patents focus on improving the thermal poling method for piezoelectric films. One notable patent describes a thermal poling method that facilitates a poling treatment through a dry process. This method involves applying heat treatment to a PZT film within a pressurized oxygen atmosphere, achieving temperatures between 400°C and 900°C. The result is a transformation of the PZT film from a single-domain crystal structure to a multi-domain crystal structure, enhancing its properties.

Another of his significant patents pertains to the manufacturing of ferroelectric films. This innovative method involves the formation of a burnable material film containing at least 1% hydrogen by weight on a substrate, followed by the creation of an amorphous thin film containing a ferroelectric material. The process of oxidizing and crystallizing the thin film while supplying hydrogen leads to the formation of a high-quality ferroelectric film on the substrate, marking a substantial advancement in this technology.

Career Highlights

Shigenai's journey as an inventor is marked by his dedication to research and innovation in the realm of piezoelectric technology. He has established itself at Youtec Co., Ltd., where he plays a crucial role in developing advanced materials and manufacturing methods. His work has not only expanded the understanding of piezoelectric properties but has also led to practical applications that benefit various industries.

Collaborations

Throughout his career, Shigenai has collaborated with talented professionals, including Takeshi Kijima and Yuuji Honda. These collaborations have fostered an environment of innovation, allowing for the exchange of ideas and the development of cutting-edge technologies in the field of piezoelectric materials.

Conclusion

Takekazu Shigenai stands out as a prominent inventor whose work significantly influences the advancement of piezoelectric technology. His patents reflect a profound understanding of material science and engineering, positioning him as a leading figure in the industry. As innovations in this field continue to evolve, Shigenai's contributions are likely to play a vital role in shaping its future.