Kazuhito Yamasawa

Title: Kazuhito Yamasawa: Innovator in Substrate Technology

Introduction

Kazuhito Yamasawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of substrate technology, holding a total of 17 patents. His work focuses on enhancing the performance and reliability of light-emitting elements and substrates.

Latest Patents

Yamasawa's latest patents include innovative designs for substrates and light-emitting elements. One notable patent describes a substrate that comprises a first layer containing crystalline aluminum nitride, a second layer containing crystalline α-alumina, and an intermediate layer sandwiched between them. This intermediate layer contains aluminum, nitrogen, and oxygen, with the nitrogen content decreasing and the oxygen content increasing in a specific direction. Another patent details an alumina substrate designed to minimize warping while supporting the growth of AlN crystals. This substrate features a gap and a rare earth element-containing region that helps prevent cracking and fracturing during the growth process.

Career Highlights

Throughout his career, Yamasawa has worked with notable companies, including TDK Corporation and TKD Corporation. His expertise in substrate technology has positioned him as a key figure in the development of advanced materials for electronic applications.

Collaborations

Yamasawa has collaborated with esteemed colleagues such as Atsushi Ohido and Tamotsu Sugawara. Their combined efforts have contributed to the advancement of substrate technology and its applications in various industries.

Conclusion

Kazuhito Yamasawa's innovative work in substrate technology has led to significant advancements in the field. His patents reflect a deep understanding of material science and its practical applications. His contributions continue to influence the development of reliable and efficient electronic components.