Takahiko Yanagitani

Title: Takahiko Yanagitani: Innovator in Piezoelectric Technology

Introduction

Takahiko Yanagitani is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of piezoelectric devices, holding a total of 2 patents. His work focuses on enhancing the efficiency and functionality of piezoelectric materials, which are crucial in various technological applications.

Latest Patents

Yanagitani's latest patents include a piezoelectric device and a method of manufacturing the same. This innovative piezoelectric device boasts a high conversion efficiency between electrical energy and mechanical energy. It features a first electrode, a second electrode, and a piezoelectric layer made from a ZnO-based material with a wurtzite crystal structure. Notably, a metal is added to the piezoelectric layer to prevent conductivity, achieving an electromechanical coupling coefficient squared value of 6.5% or more in thickness vibration mode. Another significant patent involves a piezoelectric material comprising aluminum nitride (AlN) doped with ytterbium (Yb). The atomic percentage of Yb in the AlN ranges from approximately 10.0% to 27.0%. This piezoelectric material can be utilized in bulk acoustic wave (BAW) and surface acoustic wave (SAW) acoustic resonators, which have diverse applications.

Career Highlights

Throughout his career, Yanagitani has worked with prominent companies such as Avago Technologies International Sales Pte. Limited and Nitto-Denko Corporation. His experience in these organizations has allowed him to refine his expertise in piezoelectric technology and contribute to various innovative projects.

Collaborations

Yanagitani has collaborated with notable colleagues, including Masashi Suzuki and Daisuke Nakamura. These partnerships have fostered a creative environment that has led to advancements in their respective fields.

Conclusion

Takahiko Yanagitani is a distinguished inventor whose work in piezoelectric technology has paved the way for advancements in energy conversion and acoustic resonators. His patents reflect a commitment to innovation and excellence in engineering.