Yumi Akiyama

Title: Yumi Akiyama: Innovator in Piezoelectric Technology

Introduction

Yumi Akiyama is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of piezoelectric technology, holding a total of 2 patents. Her work focuses on developing advanced materials and devices that utilize piezoelectric properties for various applications.

Latest Patents

Akiyama's latest patents include innovations in piezoelectric compositions, elements, devices, and transformers. One of her notable inventions is a piezoelectric composition that contains a combination of alkali metal elements, vanadium, niobium, tantalum, copper, and oxygen. This composition features a main phase and a high Cu-concentration phase, which has a higher copper content than the main phase. The specific content ratios of oxygen and copper in this high Cu-concentration phase are critical for its performance. Additionally, she has developed a piezoelectric element that includes a stacked body of piezoelectric and internal electrode layers. The internal electrode layer is composed of various elements, including palladium, nickel, platinum, gold, silver, and copper, with a specific copper content range.

Career Highlights

Yumi Akiyama is currently employed at TDK Corporation, where she continues to innovate in the field of piezoelectric technology. Her work has been instrumental in advancing the understanding and application of piezoelectric materials in various industries.

Collaborations

Akiyama collaborates with talented colleagues, including Hiroki Katoh and Yuiko Hirose, to further enhance the research and development of piezoelectric technologies.

Conclusion

Yumi Akiyama's contributions to piezoelectric technology demonstrate her expertise and commitment to innovation. Her patents reflect her dedication to advancing this important field, and her work continues to influence the development of new technologies.