Yuji Mitsui

Title: Innovations of Yuji Mitsui in Surface Acoustic Wave Technology

Introduction

Yuji Mitsui is a notable inventor based in Chino, Japan, recognized for his contributions to the field of surface acoustic wave devices. With a total of five patents to his name, Mitsui has made significant advancements in the technology that underpins various electronic devices.

Latest Patents

Mitsui's latest patents include a surface acoustic wave device, a module device, an oscillation circuit, and a method for manufacturing surface acoustic wave devices. One of his key innovations is an SH wave type surface acoustic wave device that features a piezoelectric substrate and an IDT electrode made of aluminum or an aluminum alloy. This device utilizes a SH wave as an excitation wave. The piezoelectric substrate is a crystal plate with a specific cut angle of a rotary Y cut quartz substrate, set between -64.0° and -49.3° in a counter-clockwise direction from the crystal axis Z. The surface acoustic wave propagation direction is aligned at 90° ± 5° with respect to the crystal axis X. Additionally, the electrode film thickness is standardized by the wavelength of the IDT electrode, ensuring optimal performance.

Career Highlights

Throughout his career, Yuji Mitsui has worked with prominent companies such as Seiko Epson Corporation and Epson Toyocom Corporation. His experience in these organizations has allowed him to refine his expertise in acoustic wave technology and contribute to various innovative projects.

Collaborations

Mitsui has collaborated with notable colleagues, including Osamu Iwamoto and Koichi Morozumi. Their combined efforts have further advanced the field of surface acoustic wave technology.

Conclusion

Yuji Mitsui's work in surface acoustic wave devices exemplifies the innovative spirit of modern technology. His patents and collaborations have significantly impacted the industry, paving the way for future advancements in electronic devices.